Novel negative pressure fan capable of being rapidly installed
By improving the connection and installation mechanisms of the negative pressure fan, and adopting threaded connection and snap-fit design, the problem of the inflexible adjustment of the mounting frame position was solved, achieving fast and tight equipment connection and improving installation efficiency and effectiveness.
Patent Information
- Application Number
- CN202520390481.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-03-07
AI Technical Summary
The existing mounting frames for negative pressure fans are quite limited, making it difficult to flexibly adjust the installation position, resulting in poor performance.
The system employs a connection and installation mechanism, including a connecting shell, threaded connecting block, back plate, mounting holes, and shaft mounting plate. Combined with a negative pressure unit and a pipe connection unit, the system achieves rapid fixation and sealed connection of the equipment through threaded connection and snap-fit design.
Significantly shortens installation time, ensures quick and tight connection between equipment and external structure, avoids damage during transportation, and improves installation efficiency and effectiveness.
Smart Images

Figure CN223690045U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to negative pressure fan technical field, concretely is a novel negative pressure fan of quick installation. BACKGROUND
[0002] The negative pressure fan is a ventilation equipment that works by air convection and negative pressure ventilation principle, and the air in the room is quickly discharged by the rotation of the fan blade driven by the motor, so that the negative pressure state is formed in the room, thereby forcing the outdoor fresh air to flow into the room from the gap of the door and window, realizing the rapid exchange of indoor and outdoor air, achieving the purposes of ventilation, cooling and ventilation, and being widely applied to factories, farms, greenhouses and other places.
[0003] The prior art discloses a quick installation of a novel negative pressure fan, and relates to the technical field of negative pressure fans. The utility model discloses a quick installation of a novel negative pressure fan, and relates to the technical field of negative pressure fans.
[0004] The above-mentioned device is provided with a separate mounting frame and a negative pressure fan body, so that disassembly and maintenance will not damage the wall, but the mounting frame of the above-mentioned device is relatively limited, and the negative pressure fan cannot be flexibly adjusted according to the demand. UTILITY MODEL CONTENTS
[0005] The utility model discloses a quick installation of a novel negative pressure fan, and relates to the technical field of negative pressure fans.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a quick installation of a novel negative pressure fan, including connecting mechanism and installation mechanism, installation mechanism fixed connection in the surface of connecting mechanism.
[0007] The installation mechanism includes a negative pressure unit and a pipe connection unit, the negative pressure unit is fixedly installed on the surface of the connecting mechanism, and the pipe connection unit is fixedly installed on the upper and lower ends of the connecting mechanism.
[0008] Preferably, the connecting mechanism is composed of a connecting shell, a threaded connecting block, a back plate, a mounting row hole and a rotating shaft mounting plate, the threaded connecting block is fixedly connected to the inside of the connecting shell, the back plate is fixedly connected to the back of the connecting shell, the mounting row hole is arranged on the surface of the back plate, and the rotating shaft mounting plate is rotationally connected to the surface of the mounting row hole and plays a main bearing role.
[0009] Preferably, the negative pressure unit is composed of a connecting plate, a connecting hole, a negative pressure air port, a fan and a mounting bolt, the connecting plate is fixedly mounted on the front face of the connecting shell, the connecting hole is arranged on the surface of the connecting plate, the negative pressure air port is arranged on the surface of the connecting plate, the fan is rotationally connected to the inside of the negative pressure air port, and the mounting bolt is rotationally connected to the inside of the threaded connecting block and the threaded connecting block and plays a negative pressure suction role.
[0010] Preferably, the pipe connecting unit is composed of a ventilation pipe, a connecting clamping groove, a threaded wire, a threaded limiting sleeve, a connecting pipe, a butt joint pipe, a sleeve shell and a clamping rod, the ventilation pipe is arranged at the upper and lower ends of the connecting shell, the connecting clamping groove is arranged on the surface of the ventilation pipe, the threaded wire is arranged on the surface of the ventilation pipe, the threaded limiting sleeve is threadedly connected to the surface of the threaded wire, the connecting pipe is mounted on the surface of the ventilation pipe, the butt joint pipe is fixedly connected to one end of the connecting pipe, the sleeve shell is arranged on the surface of the butt joint pipe, and the clamping rod is arranged in the inside of the sleeve shell, so that the equipment and the ventilation pipe are conveniently connected.
[0011] Preferably, the butt joint pipe is inserted into the inside of the ventilation pipe, the sleeve shell is sleeved on the surface of the ventilation pipe, and the clamping rod is clamped in the inside of the connecting clamping groove, thereby playing a main sealing connection role.
[0012] Preferably, the inside of the mounting row hole is provided with two groups of mounting holes, one group is a storage hole, and the other group is an extension hole, the surface of the rotating shaft mounting plate is also provided with two through holes, and the rotating shaft mounting plate is located between the storage hole and the extension hole, so that the rotating shaft mounting plate can be stored during transportation and will not be knocked, and the rotating shaft mounting plate can be expanded during installation.
[0013] Preferably, the connecting clamping groove is designed in a J shape, and the clamping is facilitated.
[0014] Compared with the prior art, the novel negative pressure fan with quick installation has the following beneficial effects:
[0015] 1. The novel negative pressure fan with quick installation, the back plate in the connecting mechanism is provided with a mounting row hole, the mounting row hole comprises a storage hole and an extension hole, the rotating shaft mounting plate is located between the storage hole and the extension hole, the rotating shaft mounting plate can be stored during transportation and will not be knocked, the rotating shaft mounting plate can be expanded during installation, the mounting row hole is convenient for connecting and fixing the equipment and the external structure, and the installation time is greatly shortened.
[0016] 2、The quick installation of the novel negative pressure fan, the butt joint pipe of the pipe joint unit can be directly inserted into the ventilation pipe, after the sleeve is sleeved, the clamping rod is clamped into the J-shaped connecting clamping groove, quick and tight sealing connection is realized, and the equipment and the ventilation pipe are conveniently connected and installed. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a schematic view of the installation state structure of the utility model;
[0018] Figure 2 It is a schematic view of the installation state structure of the utility model Figure 1 It is a schematic view of the enlarged structure at A in the utility model;
[0019] Figure 3 It is a schematic view of the installation state structure of the utility model
[0020] Figure 4 It is a schematic view of the installation state structure of the utility model
[0021] Figure 5 It is a schematic view of the installation state structure of the utility model
[0022] In the drawing: 1, connecting mechanism; 101, connecting shell; 102, threaded connecting block; 103, back plate; 104, installation row hole; 105, rotating shaft mounting plate; 2, installation mechanism; 201, connecting plate; 202, connecting hole; 203, negative pressure air port; 204, fan; 205, mounting bolt; 211, ventilation pipe; 212, connecting clamping groove; 213, threaded wire; 214, threaded limiting sleeve; 215, connecting pipe; 216, butt joint pipe; 217, sleeve; 218, clamping rod. DETAILED DESCRIPTION
[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than 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 protection scope of the utility model.
[0024] Please refer to Figures 1-5 The utility model provides the following technical scheme: a quick installation of a novel negative pressure fan, connecting mechanism 1 and installation mechanism 2, installation mechanism 2 is fixedly connected to the surface of connecting mechanism 1.
[0025] Installation mechanism 2 includes negative pressure unit and pipe joint unit, negative pressure unit is fixedly installed on the surface of connecting mechanism 1, and pipe joint unit is fixedly installed on the upper and lower ends of connecting mechanism 1.
[0026] The connecting mechanism 1 is composed of a connecting shell 101, a threaded connecting block 102, a back plate 103, a mounting row hole 104 and a rotating shaft mounting plate 105, the threaded connecting block 102 is fixedly connected to the inside of the connecting shell 101, the back plate 103 is fixedly connected to the back of the connecting shell 101, the mounting row hole 104 is arranged on the surface of the back plate 103, the rotating shaft mounting plate 105 is rotatably connected to the surface of the mounting row hole 104, the inside of the mounting row hole 104 is provided with two groups of mounting holes, one group is a receiving hole and the other group is an extension hole, the surface of the rotating shaft mounting plate 105 is also provided with two through holes, and the rotating shaft mounting plate 105 is located between the receiving hole and the extension hole, so that the rotating shaft mounting plate 105 can be conveniently received during transportation and will not be bumped, and the rotating shaft mounting plate 105 can be expanded during installation, thereby playing a main bearing role.
[0027] The negative pressure unit is composed of a connecting plate 201, a connecting hole 202, a negative pressure air port 203, a fan 204 and a mounting bolt 205, the connecting plate 201 is fixedly mounted on the front surface of the connecting shell 101, the connecting hole 202 is arranged on the surface of the connecting plate 201, the negative pressure air port 203 is arranged on the surface of the connecting plate 201, the fan 204 is rotatably connected to the inside of the negative pressure air port 203, and the mounting bolt 205 is rotatably connected to the inside of the threaded connecting block 102 and the connecting plate 201, thereby playing a negative pressure suction role. The pipe connecting unit is composed of a ventilation pipe 211, a connecting clamping groove 212, a threaded wire 213, a threaded limiting sleeve 214, a connecting pipe 215, a butt joint pipe 216, a sleeve shell 217 and a clamping rod 218, the ventilation pipe 211 is arranged on the upper and lower ends of the connecting shell 101, the connecting clamping groove 212 is arranged on the surface of the ventilation pipe 211, the connecting clamping groove 212 is designed in a J shape, thereby facilitating clamping, the threaded wire 213 is arranged on the surface of the ventilation pipe 211, the threaded limiting sleeve 214 is threadedly connected to the surface of the threaded wire 213, the connecting pipe 215 is mounted on the surface of the ventilation pipe 211, the butt joint pipe 216 is fixedly connected to one end of the connecting pipe 215, the butt joint pipe 216 is inserted into the inside of the ventilation pipe 211, the sleeve shell 217 is sleeved on the surface of the ventilation pipe 211, and the clamping rod 218 is clamped in the inside of the connecting clamping groove 212, thereby playing a main sealing connection role. The sleeve shell 217 is arranged on the surface of the butt joint pipe 216, and the clamping rod 218 is arranged in the inside of the sleeve shell 217, thereby facilitating the connection of the equipment and the ventilation pipe.
[0028] In use, the connecting mechanism 1 plays a key supporting role. The threaded connecting block 102 inside the connecting shell 101 cooperates with the mounting bolt 205 to stably fix the connecting plate 201 of the negative pressure unit on its front face. The mounting row holes 104 on the surface of the back plate 103 can flexibly accommodate and expand the shaft mounting plate 105 through the accommodation holes and the expansion holes, facilitating equipment installation and transportation. In the negative pressure unit, the fan 204 rotates in the negative pressure air port 203, communicates with the outside through the connecting hole 202, forms negative pressure suction, and discharges indoor air. In terms of the pipe connecting unit, the ventilation pipe 211 is located at the upper and lower ends of the connecting shell 101, the threaded wire 213 on the surface thereof cooperates with the threaded limiting sleeve 214 to adjust the connecting length, the butt joint pipe 216 is inserted into the ventilation pipe 211, the sleeve shell 217 is sleeved, the clamping rod 218 is clamped into the J-shaped connecting clamping groove 212, the tight connection and sealing with the ventilation pipe are realized, and it is ensured that the outdoor fresh air can smoothly flow into the indoor through the ventilation pipe to complete air circulation.
[0029] 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 the 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. A new type of quick installation negative pressure fan, comprising a connecting mechanism (1) and a mounting mechanism (2), characterized in that: The mounting mechanism (2) is fixedly connected to the surface of the connecting mechanism (1); The mounting mechanism (2) comprises a negative pressure unit and a pipe connecting unit, the negative pressure unit is fixedly installed on the surface of the connecting mechanism (1), and the pipe connecting unit is fixedly installed on the upper and lower ends of the connecting mechanism (1).
2. A new type of negative pressure fan with quick installation according to claim 1, characterized in that: The connecting mechanism (1) is composed of a connecting shell (101), a threaded connecting block (102), a back plate (103), a mounting row hole (104) and a rotating shaft mounting plate (105), the threaded connecting block (102) is fixedly connected to the inside of the connecting shell (101), the back plate (103) is fixedly connected to the back surface of the connecting shell (101), the mounting row hole (104) is arranged on the surface of the back plate (103), and the rotating shaft mounting plate (105) is rotationally connected to the surface of the mounting row hole (104).
3. A new type of negative pressure fan with quick installation according to claim 2, characterized in that: The negative pressure unit is composed of a connecting plate (201), a connecting hole (202), a negative pressure air port (203), a fan (204) and a mounting bolt (205), the connecting plate (201) is fixedly installed on the front surface of the connecting shell (101), the connecting hole (202) is arranged on the surface of the connecting plate (201), the negative pressure air port (203) is arranged on the surface of the connecting plate (201), the fan (204) is rotationally connected to the inside of the negative pressure air port (203), and the mounting bolt (205) is rotationally connected to the inside of the threaded connecting block (102) and the threaded connecting block (102).
4. The new type of negative pressure fan of quick installation according to claim 3, characterized in that: The pipe connecting unit is composed of a ventilation pipe (211), a connecting clamping groove (212), a threaded wire (213), a threaded limiting sleeve (214), a connecting pipe (215), a butt joint pipe (216), a sleeve shell (217) and a clamping rod (218), the ventilation pipe (211) is arranged on the upper and lower ends of the connecting shell (101), the connecting clamping groove (212) is arranged on the surface of the ventilation pipe (211), the threaded wire (213) is arranged on the surface of the ventilation pipe (211), the threaded limiting sleeve (214) is threadedly connected to the surface of the threaded wire (213), the connecting pipe (215) is arranged on the surface of the ventilation pipe (211), the butt joint pipe (216) is fixedly connected to one end of the connecting pipe (215), the sleeve shell (217) is arranged on the surface of the butt joint pipe (216), and the clamping rod (218) is arranged in the inside of the sleeve shell (217).
5. A new type of negative pressure fan with quick installation according to claim 4, characterized in that: The butt joint pipe (216) is inserted into the inside of the ventilation pipe (211), the sleeve shell (217) is arranged on the surface of the ventilation pipe (211), and the clamping rod (218) is clamped in the inside of the connecting clamping groove (212).
6. A new type of negative pressure fan with quick installation according to claim 5, characterized in that: The inside of the mounting row hole (104) is provided with two groups of mounting holes, one group of which is a receiving hole and the other group of which is an extension hole, the surface of the rotating shaft mounting plate (105) is also provided with two through holes, and the rotating shaft mounting plate (105) is located between the receiving hole and the extension hole.
7. The new type of negative pressure fan with quick installation according to claim 6, characterized in that: The connecting clamping groove (212) is designed in a J shape.
Citation Information
Patent Citations
Novel negative pressure fan capable of being rapidly installed
CN216381944U