A negative pressure tank

Abstract

The utility model discloses a kind of negative pressure box, including box, the side of box is equipped with opening: sealing element, connect at opening, for the opening is shielded;Still including wind collector, wind cavity is formed between the other side of wind collector and box, fan is equipped in wind cavity, fan is detachably connected between box, the inner wall of the other side of box is fixedly connected with positioning element, positioning element is set matching with fan, the top of box is equipped with mounting hole, mounting hole is set matching with fan, the top of fan is equipped with limiting element, limiting element is limited in the mounting hole of the top of box.The utility model forms wind cavity by wind collector in box, mounting hole is set in the top of box, mounting hole is communicated with wind cavity, mounting hole is matched with fan, the top of fan is set with limiting element, fan is loaded into wind cavity from mounting hole, limiting element is limited in mounting hole, realize that fan is simple, convenient to disassemble, it is convenient to clean after fan is taken out, simultaneously, after fan is taken out from wind cavity, it is convenient to clean wind cavity.

Description

Technical Field

[0001] This utility model belongs to the technical field of spraying machine equipment, specifically relating to a negative pressure box. Background Technology

[0002] This negative pressure chamber is mainly used in spray painting machines, a common type of air purification equipment. It's primarily used in paint spraying production lines across various industries as an environmental protection device for treating paint spraying exhaust gases. The spray painting machine's feature is that the odors and small amounts of unabsorbed paint powder generated during spraying are filtered and discharged outside the spray booth through the negative pressure chamber. This purifies the spray painting working environment, protects human health, and enhances the surface finish of the painted workpieces.

[0003] However, in the cleaning process of existing negative pressure boxes, the entire box needs to be disassembled before the fan can be removed. Frequent disassembly of the box can easily cause deformation of the negative pressure box, resulting in a decrease in the sealing performance of the negative pressure box and affecting its normal use. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art and to provide a negative pressure box. An air cavity is formed in the box body by an air collecting hood. An installation hole is provided on the top of the box body, which is connected to the air cavity and matched with a fan. A limiting member is provided on the top of the fan. The fan is installed into the air cavity through the installation hole, and the limiting member is limited in the installation hole. This makes it easy and convenient to disassemble the fan. After the fan is removed, it is easy to clean. At the same time, after the fan is removed from the air cavity, it is easy to clean the air cavity.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A negative pressure chamber includes a chamber body with an opening on one side; a sealing element connected to the opening to cover it; and an air collecting hood forming an air cavity between the hood and the other side of the chamber body. A fan is housed within the air cavity and is detachably connected to the chamber body. A positioning element is fixedly connected to the inner wall of the other side of the chamber body, matching the fan. A mounting hole is provided at the top of the chamber body, matching the fan. A limiting element is provided at the top of the fan, limiting its position within the mounting hole at the top of the chamber body. This invention achieves simple and convenient fan disassembly and cleaning after removal, and also facilitates cleaning of the air cavity after the fan is removed from the air cavity.

[0007] Furthermore, an air inlet is located at the bottom of the air hood, and a mesh plate is installed at the air inlet. The mesh plate structure effectively blocks larger particles of dust, debris, and other impurities from entering the air cavity, preventing impurities from accumulating and causing wear on the fan blades or blockage of the airflow channel. This filtration device extends the service life of the fan while ensuring ventilation efficiency, significantly reducing equipment maintenance frequency and failure rate.

[0008] Furthermore, the limiting component is equipped with an air outlet, which is connected to the air cavity. The connection between the air outlet and the air cavity forms a complete airflow circulation system, enabling the air inside the negative pressure box to generate a stable negative pressure environment through the fan.

[0009] Furthermore, a handle is provided at the top of the limiting component. The ergonomic handle design greatly improves the convenience of wind turbine assembly and disassembly operations, allowing maintenance personnel to hold the equipment with one hand to remove it.

[0010] Furthermore, the limiting component uses a limiting plate, with a limiting part formed by bending the inner edge of the mounting hole, and the limiting plate abutting against the limiting part. The design of the bent limiting part and the limiting plate ensures the vibration resistance of the fan during operation and disperses mechanical stress through planar contact. This facilitates quick assembly and disassembly of the fan.

[0011] Furthermore, the limiting plate has a first connecting hole, and the limiting part has a corresponding second connecting hole. A connecting screw connects the first connecting hole and the second connecting hole. During product transportation, the connecting screw is screwed into the first connecting hole and the second connecting hole for fixation, thereby fixing the limiting plate at the limiting part, increasing the stability of the connection between the fan and the air box during transportation. When the negative pressure air box is in use, the connecting screw can be unscrewed to facilitate the removal of the fan for cleaning at any time.

[0012] Furthermore, sound-absorbing cotton is bonded and fixed to the inner wall of the air cavity. The installation of sound-absorbing cotton reduces the noise of equipment operation and improves the comfort of the working environment.

[0013] Furthermore, the positioning components include a connector and a connector block. The connector is fixedly connected to the inner wall of the air cavity, and a slot is formed between the connector and the inner wall of the air cavity. The connector block is correspondingly fixedly connected to one side of the fan. When the fan is inserted into the mounting hole, the connector block is inserted into the slot. The connector and connector block provide a quick positioning function for the installation of the fan.

[0014] Furthermore, the sealing element uses sealing cloth, with magnetic strips fixedly connected to both ends of the sealing cloth. The magnetic strips are magnetically attached to both ends of the housing. When the equipment is being transported or not in use, the sealing cloth is magnetically attached to the opening on one side of the air box to block external debris from entering the air box.

[0015] Furthermore, an ultraviolet lamp is installed at the top of the air chamber. The ultraviolet lamp irradiating from the top has a disinfection and sterilization effect.

[0016] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0017] This utility model forms an air cavity inside the housing by using an air collecting hood. The top of the housing is provided with an installation hole that communicates with the air cavity and matches the fan. A limiting component is provided on the top of the fan. The fan is inserted into the air cavity through the installation hole, and the limiting component is limited in the installation hole. This makes it easy and convenient to disassemble the fan. After the fan is removed, it is easy to clean. At the same time, after the fan is removed from the air cavity, it is easy to clean the air cavity.

[0018] In this invention, the limiting component uses a limiting plate, and the inner edge of the mounting hole is bent into a limiting part, with the limiting plate abutting against the limiting part. The design of the bent limiting part and the limiting plate ensures the vibration resistance of the fan during operation and disperses mechanical stress through planar contact. This facilitates quick assembly and disassembly of the fan.

[0019] In this invention, the positioning component includes a connector and a connector block. The connector is fixedly connected to the inner wall of the air cavity, and a slot is formed between the connector and the inner wall of the air cavity. The connector block is correspondingly fixedly connected to one side of the fan. When the fan is inserted into the mounting hole, the connector block is inserted into the slot. The connector and connector block provide a quick positioning function for the installation of the fan. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of a negative pressure box according to the present invention;

[0022] Figure 2 This is a schematic diagram of the structure inside the sealing opening box of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the air shroud in this utility model;

[0024] Figure 4 This is a schematic diagram of the connection between the limiting plate and the fan in this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the housing after the blower is removed in this utility model;

[0026] Figure 6 This is a schematic diagram of the connector structure in this utility model.

[0027] In the diagram, 1-box body; 2-opening; 3-sealant; 4-air collector hood; 5-air cavity; 6-fan; 7-mounting hole; 8-limiting plate; 9-air inlet; 10-mesh plate; 11-air outlet; 12-handle; 13-limiting part; 14-connection hole one; 15-connection hole two; 16-sound insulation cotton; 17-plug socket; 18-plug block; 19-slot; 20-sealing cloth; 21-magnetic strip; 22-ultraviolet lamp. Detailed Implementation

[0028] like Figures 1 to 6 As shown, this utility model discloses a negative pressure box, including a box body 1. One side of the box body 1 has an opening 2. A sealing member 3 is connected to the opening 2 to cover the opening 2. It also includes an air collecting hood 4, which forms an air cavity 5 with the other side of the box body 1. A fan 6 is provided in the air cavity 5. The fan 6 is detachably connected to the box body 1. A positioning member is fixedly connected to the inner wall of the other side of the box body 1. The positioning member is matched with the fan 6. The top of the box body 1 has a mounting hole 7, which is matched with the fan 6. The top of the fan 6 has a limiting member, which is limited in the mounting hole 7 at the top of the box body 1.

[0029] The bottom of the air collecting hood 4 is equipped with an air inlet 9, and a mesh plate 10 is installed at the air inlet 9. The design of the mesh plate 10 effectively blocks larger particles of dust, debris, and other impurities from entering the air chamber 5, preventing the accumulation of impurities from causing wear on the fan blades 6 or blockage of the airflow channel. This filtration device extends the service life of the fan 6 while ensuring ventilation efficiency, and significantly reduces the frequency of equipment maintenance and the failure rate.

[0030] The limiting component is equipped with an air outlet 11, which is connected to the air cavity 5. The connection between the air outlet 11 and the air cavity 5 forms a complete airflow circulation system, enabling the air inside the negative pressure box to generate a stable negative pressure environment through the fan 6.

[0031] The limiting plate 8 is provided with a first connecting hole 14, and the limiting part 13 is provided with a second connecting hole 15. A connecting screw is connected between the first connecting hole 14 and the second connecting hole 15. During product transportation, the connecting screw is screwed into the first connecting hole 14 and the second connecting hole 15 for fixation, thereby fixing the limiting plate 8 at the limiting part 13, which increases the stability of the connection between the fan 6 and the air box during transportation. When the negative pressure air box is in use, the connecting screw is unscrewed, making it convenient to remove the fan 6 for cleaning at any time.

[0032] The inner wall of the air cavity 5 is glued and fixed with sound insulation cotton 16. The sound insulation cotton 16 reduces the noise of the equipment operation and improves the comfort of the working environment.

[0033] The positioning components include a connector 17 and a connector block 18. The connector 17 is fixedly connected to the inner wall of the air cavity 5, and a slot 19 is formed between the connector 17 and the inner wall of the air cavity 5. The connector block 18 is correspondingly fixedly connected to one side of the fan 6. When the fan 6 is inserted into the mounting hole 7, the connector block 18 is inserted into the slot 19. The connector 17 and connector block 18 provide a quick positioning function for the installation of the fan 6.

[0034] The sealing element 3 uses a sealing cloth 20, and magnetic strips 21 are fixedly connected to both ends of the sealing cloth 20. The magnetic strips 21 are magnetically connected to both ends of the housing 1. When the equipment is being transported or not in use, the sealing cloth 20 is attracted to the opening 2 on one side of the air box by the magnetic strips 21 to block the air box and prevent external debris from entering the air box.

[0035] An ultraviolet lamp 22 is installed at the top of the air chamber 5. The ultraviolet lamp 22 irradiated from the top has the function of disinfection and sterilization.

[0036] The limiting component uses a limiting plate 8, with a limiting part 13 formed by bending the inner edge of the mounting hole 7. The limiting plate 8 abuts against the limiting part 13. The design of the bent limiting part 13 and the limiting plate 8 ensures the vibration resistance of the fan 6 during operation and disperses mechanical stress through planar contact. This facilitates quick assembly and disassembly of the fan 6.

[0037] A handle 12 is provided on the top of the limiting component. The ergonomic handle 12 design greatly improves the convenience of disassembling and assembling the fan 6, allowing maintenance personnel to hold the equipment with one hand to complete the removal operation.

[0038] This utility model forms an air cavity 5 inside the housing 1 by means of an air collecting cover 4. The top of the housing 1 is provided with an installation hole 7, which communicates with the air cavity 5 and matches the fan 6. A limiting member is provided on the top of the fan 6. The fan 6 is inserted into the air cavity 5 through the installation hole 7 and the limiting member is limited in the installation hole 7, which realizes that the fan 6 is simple and convenient to disassemble. After the fan 6 is removed, it is easy to clean. At the same time, after the fan 6 is removed from the air cavity 5, it is easy to clean the air cavity 5.

[0039] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A negative pressure chamber, comprising: The box body has an opening on one side: A sealing element, connected to the opening, is used to block the opening; Its features are: It also includes an air collecting hood, which forms an air cavity with the other side of the housing. A fan is installed in the air cavity and is detachably connected to the housing. A positioning member is fixedly connected to the inner wall of the other side of the housing and is matched with the fan. The top of the housing is provided with a mounting hole that is matched with the fan. The top of the fan is provided with a limiting member that is limited in the mounting hole at the top of the housing.

2. A negative pressure chamber according to claim 1, characterized in that: The bottom of the air collecting hood is provided with an air inlet, and a mesh plate is provided at the air inlet.

3. A negative pressure chamber according to claim 1, characterized in that: The limiting member is provided with an air outlet, which is connected to the air cavity.

4. A negative pressure chamber according to claim 1, characterized in that: The top of the limiting member is provided with a handle.

5. A negative pressure chamber according to claim 1, characterized in that: The limiting component is a limiting plate, and the inner edge of the mounting hole is bent into a limiting part, with the limiting plate abutting against the limiting part.

6. A negative pressure chamber according to claim 5, characterized in that: The limiting plate is provided with a first connecting hole, and the limiting part is provided with a second connecting hole. A connecting screw is connected between the first connecting hole and the second connecting hole.

7. A negative pressure chamber according to claim 1, characterized in that: The inner walls of the air cavity are all glued and fixed with sound insulation cotton.

8. A negative pressure chamber according to claim 1, characterized in that: The positioning component includes a connector and a connector block. The connector is fixedly connected to the inner wall of the air cavity, and a slot is formed between the connector and the inner wall of the air cavity. The connector block is fixedly connected to one side of the fan. When the fan is inserted into the mounting hole, the connector block is inserted into the slot.

9. A negative pressure chamber according to claim 1, characterized in that: The sealing element is made of sealing cloth, and magnetic strips are fixedly connected to both ends of the sealing cloth. The magnetic strips are magnetically connected to both ends of the box body.

10. A negative pressure chamber according to claim 1, characterized in that: The top of the air cavity is equipped with an ultraviolet lamp.

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