Air inlet fan and communication machine room

Abstract

The utility model discloses an air inlet fan and a communication machine room, which can limit an inserting plate fixed on a cover plate through a limiting plate, so as to control the opening and closing of the cover plate, and enable the cover plate of the air inlet fan to be quickly opened and closed. The air inlet fan comprises a fan body (1), a cover plate (3) and a locking assembly. The locking assembly comprises a limiting box (7), a limiting mechanism (8) and an inserting mechanism (5). The limiting box (7) is fixed to the draught fan body (1) and located at the position corresponding to the inserting mechanism, and a transverse groove (11) is formed in the limiting box (7) in the first direction. A vertical groove (10) is formed above the transverse groove (11), and the vertical groove (10) is communicated with the transverse groove (11). The limiting mechanism (8) comprises a vertical rod (801) and a limiting plate (802). The insertion mechanism (5) is arranged on the cover plate (3) and located at the end, opposite to the end hinged to the fan body (1), of the cover plate (3).

Description

Technical Field

[0001] The utility model specifically relates to an air inlet fan and a communication machine room. Background Art

[0002] As the core area for information transmission and processing, the communication machine room undertakes a large number of tasks of data and information transmission, processing and storage. However, with the continuous progress of communication technology and the continuous replacement of equipment, the equipment density and computing power inside the machine room are constantly increasing, which leads to a sharp increase in the heat inside the machine room. Therefore, an air inlet fan is needed to efficiently introduce outdoor cold air into the machine room and discharge the hot air inside the machine room, so as to realize the heat dissipation and cooling of the machine room.

[0003] In the current air inlet fan equipment, the ventilation cover plate of its outer shell is often fixedly connected to the shell or connected by bolts. However, when overhauling the air inlet fan or cleaning the filter holes of the ventilation cover plate, it is rather troublesome, and there is a problem that it is inconvenient to open the ventilation cover plate. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an air inlet fan and a communication machine room aiming at the above deficiencies existing in the prior art, which can limit the insertion plate on the cover plate through a limiting plate, so as to control the opening and closing of the cover plate, and enable the cover plate of the air inlet fan to be quickly opened and closed.

[0005] In the first aspect, an embodiment of the utility model provides an air inlet fan, which includes a fan body, a cover plate and a locking assembly. The cover plate is hinged at the opening of the fan body for opening or closing the fan body, and ventilation holes are provided on the cover plate. The locking assembly includes a limiting box, a limiting mechanism and an inserting mechanism. The limiting box is fixed on the fan body and is located at a position corresponding to the inserting mechanism. A transverse groove is provided in the limiting box along a first direction; a vertical groove is provided above the transverse groove, and the vertical groove is communicated with the transverse groove. The limiting mechanism includes a vertical rod and a limiting plate; the vertical rod extends into the vertical groove from the top of the limiting box; the limiting plate is fixed at the bottom of the vertical rod, and the limiting arc plate can extend into the transverse groove from the vertical groove under the drive of the vertical rod. The inserting mechanism is arranged on the cover plate and is located at the opposite end of the cover plate hinged to the fan body. The cover plate can drive the inserting mechanism to insert into the transverse groove of the limiting box; after the inserting mechanism is inserted into the transverse groove of the limiting box, the limiting plate enters the transverse groove and abuts against the side wall of the inserting mechanism facing the cover plate to fix the inserting mechanism in the transverse groove. Wherein, the first direction is the direction from the fan body to the cover plate.

[0006] In some embodiments, the insertion mechanism includes an insertion rod and an insertion plate; the insertion rod is disposed on the cover plate, and the insertion plate is fixed to one side of the insertion rod facing the blower body; after the cover plate rotates to the position of closing the blower body, the insertion rod can drive the insertion plate to insert into the transverse groove of the limit box, and after the limit plate enters the transverse groove, it abuts against the side wall of the insertion plate on the side facing the insertion rod to fix the insertion plate in the transverse groove.

[0007] In some embodiments, the shape of the limit plate is a right-angled arc, its horizontal right-angled surface is connected to the vertical rod, its horizontal right-angled surface contacts the lower wall surface of the transverse groove, and its vertical right-angled surface is the first right-angled surface. The shape of the insertion plate is a right-angled arc, its vertical right-angled surface is the second right-angled surface, and the second right-angled surface abuts against the first right-angled surface.

[0008] In some embodiments, the insertion mechanism further includes a positioning plate. The positioning plate is fixed to the top of the cover plate, and the insertion rod is horizontally fixed to the top of the cover plate through the positioning plate.

[0009] In some embodiments, the bottom of the cover plate is hinged to the bottom of the blower body, and the limit box is disposed at the top of the blower body.

[0010] In some embodiments, the air inlet fan further includes an upper pulling plate, which is located above the limit box and is fixedly connected to the top end of the vertical rod.

[0011] In some embodiments, a tension spring is sleeved outside the vertical rod, the top end of the tension spring is fixed to the bottom surface of the upper pulling plate, and the bottom end of the tension spring is fixed to the top surface of the limit box.

[0012] In some embodiments, the number of the locking components is two, the structures of the two locking components are the same, and the two locking components are arranged at intervals. The vertical rods in the two locking components are both fixedly connected to the upper pulling plate.

[0013] In some embodiments, the locking component further includes an ejecting mechanism. The ejecting mechanism includes a compression spring and an ejecting plate; one end of the compression spring is fixed to the tail end of the transverse groove, the other end of the compression spring is fixed to the ejecting plate; the compression spring can drive the ejecting plate to eject the insertion plate out of the transverse groove.

[0014] In some embodiments, a mounting plate is fixed to the side of the blower body away from the cover plate, mounting holes are formed in the mounting plate, and the mounting plate is fixed at a preset position through fixing members passing through the mounting holes.

[0015] Therefore, for the air inlet fan provided by the embodiment of the present utility model, by hinging the cover plate at the opening of the fan body, the back plate will not fall off after the back plate is opened. By fixing the limit box on the fan body and at a position corresponding to the insertion mechanism, after a transverse slot is opened in the limit box along the first direction, the cover plate can drive the insertion mechanism to insert into the transverse slot; by opening a vertical slot above the transverse slot and making the vertical rod extend into the vertical slot from the top of the limit box, the limit arc plate can extend from the vertical slot into the transverse slot under the drive of the vertical rod. Therefore, after the insertion mechanism is inserted into the transverse slot, the vertical rod can drive the limit plate into the transverse slot and abut against the side wall of the insertion mechanism facing the cover plate, fixing the insertion mechanism in the transverse slot, so as to keep the cover plate in a closed state after the cover plate is closed; when the cover plate needs to be opened, the vertical rod drives the limit plate to move upward, the limit plate no longer limits the insertion mechanism, and the insertion mechanism can move along the first direction and move out of the transverse slot, so that the cover plate can be opened. The limit of the insertion mechanism fixed on the cover plate is realized through the limit plate, so that the opening and closing of the cover plate can be controlled, and the cover plate of the air inlet fan can be quickly opened and closed, facilitating the maintenance of the air inlet fan by the staff or the cleaning of the ventilation holes.

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

[0017] The communication machine room provided by the embodiment of the present utility model has the same beneficial effects as the above-mentioned air inlet fan and will not be elaborated here. Description of the Drawings

[0018] Figure 1 : A schematic diagram of an air inlet fan provided by an embodiment of the present utility model;

[0019] Figure 2 : Another schematic diagram of an air inlet fan provided by an embodiment of the present utility model;

[0020] Figure 3 : A schematic diagram of another locking assembly provided by an embodiment of the present utility model. Detailed Embodiments

[0021] To enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further described in detail below with reference to the drawings and embodiments.

[0022] Embodiment 1:

[0023] As Figure 1 and Figure 2As shown in the figure, an embodiment of the present utility model provides an air inlet fan, which is applied to a communication machine room or other scenarios that require air supply. The air inlet fan includes a fan body 1 and a cover plate 3. The cover plate 3 is hinged at the opening of the fan body 1 and is used to open or close the fan body 1. A ventilation hole 4 is provided on the cover plate 3.

[0024] Exemplarily, the fan body 1 includes a housing and a fan inside the housing.

[0025] As Figure 2 shown, the bottom of the cover plate 3 and the bottom of the fan body 1 are connected by a hinge 2, and the number of hinges 2 can be two.

[0026] By using the hinge 2 for connection, the fan body 1 and the back plate 3 can be made into a connected whole. After the back plate 3 is opened, the back plate 3 will not fall off. The hinge 2 can also realize the positioning of the cover plate 3 and the fan body 1, so that the back plate 3 can be exactly covered on the fan body 1.

[0027] The number of ventilation holes 4 on the cover plate 3 can be multiple. The ventilation holes 4 can filter the air entering the fan body 1, avoid a large amount of dust from entering the inside of the fan body 1, thereby avoiding the influence of dust on the internal machines of the fan body 1, and further ensuring the ventilation efficiency of the air inlet fan.

[0028] Combined Figure 1 and Figure 3 , the air inlet fan further includes a locking assembly, and the locking assembly includes a limit box 7, a limit mechanism 8 and an insertion mechanism 5. The limit box 7 is fixed on the fan body 1 and is located at a position corresponding to the insertion mechanism. A transverse groove 11 is provided inside the limit box 7 along the first direction; a vertical groove 10 is provided above the transverse groove 11, and the vertical groove 10 communicates with the transverse groove 11. The limit mechanism 8 includes a vertical rod 801 and a limit plate 802; the vertical rod 801 extends into the vertical groove 10 from the top of the limit box; the limit plate 802 is fixed at the bottom of the vertical rod 801, and the limit arc plate 802 can extend into the transverse groove 11 from the vertical groove 10 under the drive of the vertical rod 801. The insertion mechanism 5 is provided on the cover plate 3 and is located at the opposite end of the hinge between the cover plate 3 and the fan body 1. The cover plate 3 can drive the insertion mechanism 5 to insert into the transverse groove 11 of the limit box 7; after the insertion mechanism 5 is inserted into the transverse groove 11 of the limit box 7, the limit plate 802 enters the transverse groove 11 and abuts against the side wall of the insertion mechanism 5 facing the cover plate 3 to fix the insertion mechanism 5 in the transverse groove 11.

[0029] It can be understood that the position of the locking assembly does not need to be on the same side as the hinge 2.

[0030] Exemplarily, the height of the transverse groove 11 is greater than the height of the insertion mechanism 5, so that the insertion mechanism 5 can be smoothly inserted into the transverse groove 11.

[0031] Exemplarily, the vertical groove 10 can accommodate the limit plate 802, so that when the vertical rod 801 drives the limit plate 802 to move upward, most or all of the limit plate 802 can be retracted into the vertical groove 10, facilitating the removal of the insertion mechanism 5 from the transverse groove 11.

[0032] Exemplarily, the outer surface of the vertical rod 801 is slidably connected to the inner wall of the limit box 7.

[0033] Combined with Figure 1 and Figure 3 , when it is necessary to cover the cover plate 3 on the fan body 1, the vertical rod 801 is driven to drive the limit plate 802 to move upward, and the cover plate 3 drives the insertion mechanism 5 to insert into the interior of the transverse groove 11; at this time, the vertical rod 801 is driven to drive the limit plate 802 to move downward, and the limit plate 802 enters the transverse groove 11 and abuts against the side wall of the insertion mechanism 5 facing the cover plate 3, restricting the movement of the insertion mechanism 5 toward the cover plate 3 side, thereby fixing the insertion mechanism 5 in the transverse groove 11.

[0034] When it is necessary to open the cover plate 3, the vertical rod 801 is driven to drive the limit plate 802 to move upward, and the limit plate 802 no longer abuts against the side wall of the insertion mechanism 5 facing the cover plate 3. The insertion mechanism 5 can move along the first direction and move out of the transverse groove 11, so that the cover plate 3 can be opened to repair the fan body 1.

[0035] Thus, the air inlet fan provided by the embodiment of the present invention, by hinging the cover plate 3 at the opening of the fan body 1, the cover plate 3 will not fall off after the back plate 3 is opened. By fixing the limit box 7 on the fan body 1 and in a position corresponding to the insertion mechanism, after a transverse groove 11 is opened in the limit box 7 along the first direction, the cover plate 3 can be driven to drive the insertion mechanism 5 to insert into the transverse groove 11; by opening a vertical groove 10 above the transverse groove 11 and making the vertical rod 801 extend into the vertical groove 10 from the top of the limit box 7, the limit arc-shaped plate 802 can extend from the vertical groove 10 into the transverse groove 11 under the drive of the vertical rod 801. Therefore, after the insertion mechanism 5 is inserted into the transverse groove 11, the vertical rod 801 can drive the limit plate 802 to enter the transverse groove 11 and abut against the side wall of the insertion mechanism 5 facing the cover plate 3 side, fixing the insertion mechanism 5 in the transverse groove 11, so as to keep the cover plate 3 in a closed state after the cover plate 3 is closed; when it is necessary to open the cover plate 3, the vertical rod 801 drives the limit plate 802 to move upward, the limit plate 802 no longer limits the insertion mechanism 5, and the insertion mechanism 5 can move along the first direction and move out of the transverse groove 11, so that the cover plate 3 can be opened. The limit of the insertion mechanism 5 fixed on the cover plate 3 is realized through the limit plate 802, so that the opening and closing of the cover plate 3 can be controlled, and the cover plate 3 of the air inlet fan can be quickly opened and closed, facilitating the staff to repair the air inlet fan or clean the ventilation hole 4.

[0036] In some embodiments, in combination with Figure 1 and Figure 3 , the insertion mechanism 5 includes an insertion rod 502 and an insertion plate 503; the insertion rod 502 is disposed on the cover plate 3, and the insertion plate 503 is fixed to one side of the insertion rod 502 facing the fan body 1; after the cover plate 3 rotates to the position of closing the fan body 1, the insertion rod 502 can drive the insertion plate 503 to insert into the transverse groove 11 of the limit box 7. After the limit plate 802 enters the transverse groove 11, it abuts against the side wall of the insertion plate 503 facing the insertion rod 502 to fix the insertion plate 503 in the transverse groove 11. Wherein, the first direction is the direction from the fan body 1 pointing to the cover plate 3.

[0037] In combination with Figure 1 and Figure 3 , when it is necessary to cover the cover plate 3 on the fan body 1, the vertical rod 801 is used to drive the limit plate 802 to move upward, and the cover plate 3 drives the insertion plate 503 to move into the interior of the transverse groove 11 through the insertion rod 502; at this time, the vertical rod 801 is used to drive the limit plate 802 to move downward, and the limit plate 802 enters the transverse groove 11 and abuts against the side wall of the insertion plate 503 facing the insertion rod 502 to restrict the movement of the insertion plate 503 toward the insertion rod 502 side, thereby fixing the insertion plate 503 in the transverse groove 11.

[0038] When it is necessary to open the cover plate 3, the vertical rod 801 is used to drive the limit plate 802 to move upward, and the limit plate 802 no longer abuts against the side wall of the insertion plate 503 facing the insertion rod 502. The insertion plate 503 can move toward the insertion rod 502 side and move out of the transverse groove 11, so that the cover plate 3 can be opened to repair the fan body 1. In some embodiments, as Figure 3 shown, the shape of the limit plate 802 is a right-angled arc, its horizontal right-angled surface is connected to the vertical rod 801, and its vertical right-angled surface is the first right-angled surface. The shape of the insertion plate 503 is a right-angled arc, its horizontal right-angled surface contacts the lower wall surface of the transverse groove 11, and its vertical right-angled surface is the second right-angled surface, and the second right-angled surface abuts against the first right-angled surface.

[0039] Through the above settings, it can be understood that the second right-angled surface abutting against the first right-angled surface can achieve a better limiting effect of the limit plate 802 on the insertion plate 503. Moreover, during the process of the insertion plate 503 inserting into the transverse groove 11, when the insertion plate 503 contacts the limit plate 802, the arc surface of the insertion plate 503 can push the limit plate 802 to move upward through the arc surface of the limit plate 802. Therefore, the insertion of the insertion plate 503 can be realized without additional operations on the vertical rod 801 and the limit plate 802, reducing the operation steps of the staff when closing the cover plate 3 and making the closing of the cover plate 3 more convenient.

[0040] It can be understood that the arc surfaces of the above-mentioned limiting plate 802 and the insertion plate 503 can also be changed to inclined surfaces, and the insertion of the insertion plate 503 can also be achieved without operating the vertical rod 801 and the limiting plate 802.

[0041] In some embodiments, as Figure 1 and Figure 2 shown, the bottom of the cover plate 3 is hinged to the bottom of the fan body 1, and the limiting box 7 is arranged at the top of the fan body 1.

[0042] Through the above settings, when it is necessary to open the cover plate 3, only a small distance needs to be pulled open for the cover plate 3, and the cover plate 3 can be completely opened due to its own gravity. Moreover, the hinge position of the cover plate 3 and the fan body 1 and the position of the limiting box 7 are respectively located on opposite sides of the fan body 1, which can improve the locking effect of the locking component on the cover plate 3.

[0043] In some embodiments, as Figure 1 and Figure 3 shown, the air inlet fan further includes an upper pull plate 6, the upper pull plate 6 is located above the limiting box 7 and is fixedly connected to the top end of the vertical rod 801.

[0044] The upper pull plate 6 can facilitate the staff's grip, so that the staff can easily move the vertical rod 801 up and down through the upper pull plate 6, facilitate the control of the up and down movement of the limiting plate 802, and further control the locking or opening of the cover plate 3.

[0045] In some embodiments, as Figure 3 shown, a tension spring 803 is sleeved outside the vertical rod 801, the top end of the tension spring 803 is fixed to the bottom surface of the upper pull plate 6, and the bottom end of the tension spring 803 is fixed to the top surface of the limiting box 7.

[0046] Through the above settings, when the upper pull plate 6 is not subject to other external forces, due to the gravity of the upper pull plate 6, the vertical rod 801 and the limiting plate 802, and the resilience of the tension spring 803, the limiting plate 802 will always remain in the state of extending into the transverse groove 11. Thus, after the insertion plate 503 is inserted into the transverse groove 11, it will remain in a state of abutting against the side wall of the insertion plate 503 facing the insertion rod 502, maintaining the locking state of the insertion plate 503 and the closed state of the cover plate 3, and preventing the cover plate 3 from being opened abnormally due to other external forces. In addition, during the process of inserting the insertion plate 503 into the transverse groove 11, when the insertion plate 503 is inserted to the side of the limiting plate 802 away from the cover plate 3, the limiting plate 802 can automatically drop to lock the insertion plate 503 in time.

[0047] In some embodiments, as Figure 1As shown, the number of locking components is two. The structures of the two locking components are the same, and the two locking components are arranged at intervals. The vertical rods 801 in the two locking components are both fixedly connected to the upper pulling plate 6.

[0048] It can be understood that the number of locking components can also be other numbers more than two.

[0049] By setting two locking components, the cover plate 3 can be locked at two different positions of the air inlet fan, improving the locking ability of the cover plate. When it is necessary to open the cover plate 3, the upper pulling plate 6 is lifted upward, and at the same time, the corresponding limiting plates 802 can be moved upward respectively through the two vertical rods 801, so that the limiting plates 802 release the locking of the corresponding plug plates 503, thereby opening the cover plate 3.

[0050] In some embodiments, as Figure 3 shown, the locking component further includes an ejecting mechanism 9. The ejecting mechanism 9 includes a compression spring 901 and an ejecting plate 902; one end of the compression spring 901 is fixed at the tail end of the transverse groove 11, and the other end of the compression spring 901 is fixed on the ejecting plate 902; the compression spring 901 can drive the ejecting plate 902 to eject the inserting mechanism 5 out of the transverse groove 11.

[0051] As Figure 3 shown, the ejecting plate 902 can slide in the transverse groove 11.

[0052] During the process of the inserting mechanism 5 inserting into the transverse groove 11, the inserting mechanism 5 contacts the ejecting plate 902 and extrudes the ejecting plate 902, so that the ejecting plate 902 moves towards the bottom of the transverse groove 11. At the same time, the ejecting plate 902 extrudes the compression spring 901, causing the compression spring 901 to deform. After the limiting plate 802 locks the inserting mechanism 5, the compression spring 901 has an elastic force towards the cover plate 3 on the ejecting plate 902. After the limiting plate 802 moves upward to release the locking of the inserting mechanism 5, the elastic force of the compression spring 901 on the ejecting plate 902 will drive the ejecting plate 902 to eject the inserting mechanism 5 out of the transverse groove 11, so that the cover plate 3 automatically opens.

[0053] It can be understood that when the inserting mechanism 5 includes an inserting rod 502 and a plug plate 503, the acting force of the ejecting plate 902 is applied to the plug plate 503.

[0054] Therefore, when it is necessary to open the cover plate 3, only the upper pulling plate 3 needs to be pulled, so that the staff can automatically open the cover plate 3 without performing additional operations on the cover plate 3, further improving the convenience of opening the cover plate 3.

[0055] In some embodiments, as Figure 3As shown, the insertion mechanism 5 further includes a positioning plate 501. The positioning plate 501 is fixed to the top of the cover plate 3, and the insertion rod 502 is horizontally fixed to the top of the cover plate 3 through the positioning plate 501.

[0056] Exemplarily, two opposite sides of the limit box 7 in contact with the positioning plate 501 to seal the transverse groove 11 and the vertical groove 10 by the positioning plate 501, preventing the entry of dust and other debris.

[0057] It can be understood that by reasonably adjusting the position of the positioning plate 501 on the top of the cover plate 3, when the cover plate 3 is fully closed, the two opposite sides of the limit box 7 in contact with the positioning plate 501 can just touch each other, which helps the positioning when the cover plate 3 is covered on the fan body 1.

[0058] Through the above settings, the height of the insertion rod 502 on the positioning plate 501 can be adjusted, so that the insertion plate 503 on the insertion rod 502 can accurately insert into the transverse groove 11.

[0059] In some embodiments, a mounting plate 12 is fixed to the side of the fan body 1 away from the cover plate 3. Mounting holes are provided on the mounting plate 12, and the mounting plate 12 is fixed at a preset position through fixing members passing through the mounting holes.

[0060] Exemplarily, as Figure 1 shown, the number of the mounting plates 12 is multiple, and the multiple mounting plates 12 are arranged on the upper and lower sides of the fan body 1.

[0061] Exemplarily, the fixing member can be a screw.

[0062] Through the above settings, it is convenient to fix the inlet fan.

[0063] Embodiment 2:

[0064] The embodiment of the present invention further provides a communication machine room, which includes an equipment room and the inlet fan in Embodiment 1. The equipment room is used to accommodate communication equipment. The inlet fan is fixed on the wall of the equipment room and used to supply air into the equipment room.

[0065] The communication equipment may include power supply equipment, network equipment, etc.

[0066] Exemplarily, an air inlet hole is provided on the wall of the equipment room, and the inlet fan is fixed at the air inlet hole.

[0067] Through the above settings, after the inlet fan is powered on, it can supply air into the equipment room to introduce outdoor cold air into the machine room and cool the communication equipment in the equipment room. And the inlet fan can be conveniently opened and closed by the staff, improving the convenience for the staff to repair and clean the inlet fan.

[0068] It is understandable that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the present utility model. However, the present utility model is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present utility model, and these modifications and improvements are also regarded as the protection scope of the present utility model.

Claims

1. An air inlet fan, characterized in that, Comprising: A fan body (1); A cover plate (3), hinged at an opening of the fan body (1) for opening or closing the fan body (1), and a ventilation hole (4) is provided on the cover plate (3); and, A locking assembly, including a limit box (7), a limiting mechanism (8) and an insertion mechanism (5); The limit box (7) is fixed on the fan body (1) and is located at a position corresponding to the insertion mechanism. A transverse groove (11) is provided inside the limit box (7) along a first direction; a vertical groove (10) is provided above the transverse groove (11), and the vertical groove (10) communicates with the transverse groove (11); The limiting mechanism (8) includes a vertical rod (801) and a limiting plate (802); the vertical rod (801) extends into the vertical groove (10) from the top of the limit box; the limiting plate (802) is fixed at the bottom of the vertical rod (801), and the limiting arc plate (802) can extend from the vertical groove (10) into the transverse groove (11) under the drive of the vertical rod (801); The insertion mechanism (5) is arranged on the cover plate (3) and is located at the opposite end of the cover plate (3) hinged to the fan body (1). The cover plate (3) can drive the insertion mechanism (5) to insert into the transverse groove (11) of the limit box (7); after the insertion mechanism (5) inserts into the transverse groove (11) of the limit box (7), the limiting plate (802) enters the transverse groove (11) and abuts against the side wall of the insertion mechanism (5) facing the cover plate (3) to fix the insertion mechanism (5) in the transverse groove (11); Wherein, the first direction is the direction from the fan body (1) pointing to the cover plate (3).

2. The air inlet fan according to claim 1, characterized in that The insertion mechanism (5) includes an insertion rod (502) and an insertion plate (503); the insertion rod (502) is arranged on the cover plate (3), and the insertion plate (503) is fixed on the side of the insertion rod (502) facing the fan body (1); after the cover plate (3) rotates to the position of closing the fan body (1), the insertion rod (502) can drive the insertion plate (503) to insert into the transverse groove (11) of the limit box (7). After the limiting plate (802) enters the transverse groove (11), it abuts against the side wall of the insertion plate (503) facing the insertion rod (502) to fix the insertion plate (503) in the transverse groove (11).

3. The air inlet fan according to claim 2, characterized in that The shape of the limiting plate (802) is a right-angled arc, its right-angled surface in the horizontal direction is connected to the vertical rod (801), and its right-angled surface in the vertical direction is the first right-angled surface; The shape of the insertion plate (503) is a right-angled arc, its right-angled surface in the horizontal direction contacts the lower wall surface of the transverse groove (11), and its right-angled surface in the vertical direction is the second right-angled surface, and the second right-angled surface abuts against the first right-angled surface.

4. The air inlet fan according to claim 2, characterized in that, The insertion mechanism (5) further includes a positioning plate (501); The positioning plate (501) is fixed to the top of the cover plate (3), and the insertion rod (502) is horizontally fixed to the top of the cover plate (3) through the positioning plate (501).

5. The air inlet fan according to claim 1, wherein The bottom of the cover plate (3) is hinged to the bottom of the fan body (1), and the limit box (7) is arranged at the top end of the fan body (1).

6. The air inlet fan according to claim 1, wherein, It further includes an upper pull plate (6), the upper pull plate (6) is located above the limit box (7) and is fixedly connected to the top end of the vertical rod (801).

7. The air inlet fan according to claim 6, wherein A tension spring (803) is sleeved outside the vertical rod (801), the top end of the tension spring (803) is fixed to the bottom surface of the upper pull plate (6), and the bottom end of the tension spring (803) is fixed to the top surface of the limit box (7).

8. The air inlet fan according to claim 6, wherein, The number of the locking components is two, the structures of the two locking components are the same, and the two locking components are arranged at intervals; The vertical rods (801) in the two locking components are both fixedly connected to the upper pull plate (6).

9. The air inlet fan according to claim 1, characterized in that, The locking component further includes an ejecting mechanism (9); The ejecting mechanism (9) includes a compression spring (901) and an ejecting plate (902); one end of the compression spring (901) is fixed to the tail end of the transverse groove (11), and the other end of the compression spring (901) is fixed to the ejecting plate (902); the compression spring (901) can drive the ejecting plate (902) to eject the insertion mechanism (5) out of the transverse groove (11).

10. The air inlet fan according to claim 1, characterized in that, A mounting plate (12) is fixed to one side of the fan body (1) away from the cover plate (3), mounting holes are formed in the mounting plate (12), and the mounting plate (12) is fixed at a preset position through fixing pieces passing through the mounting holes.

11. A communication machine room, characterized in that, Including: An equipment room for accommodating communication equipment; And, The air inlet fan according to any one of claims 1-10, which is fixed on the wall of the equipment room and is used for blowing air into the equipment room.

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