A negative pressure weighing chamber for ice bordeaux

Abstract

The utility model relates to a kind of negative pressure weighing chamber for ice bor scattering, belong to negative pressure weighing chamber technical field, including box, the inner top wall of the box is equipped with the weighing chamber body that can provide stable space to ice bor scattering and weigh, the inner left wall of the box is equipped with the air flow component that is powered for gas flow, the top of the weighing chamber body is equipped with the adjustment component that can control the size of air intake speed, the inner bottom wall of the box and below the weighing chamber body is equipped with the first filter component that carries out primary filtration to air, the inner left wall of the box is equipped with the secondary filter component that carries out further filtration to air.The negative pressure weighing chamber for ice bor scattering, by the cooperation of first electric fan, secondary electric fan and adjustment component, can guarantee the uniformity of pressure difference while improving air outlet, to better meet the actual needs of ice bor scattering, improve weighing stability, by the cooperation of first filter component and secondary filter component, can effectively filter and sterilize air.

Description

Technical Field

[0001] This utility model relates to the field of negative pressure weighing chamber technology, specifically a negative pressure weighing chamber for ice-boron powder. Background Technology

[0002] A negative pressure weighing chamber is a local purification device. Its core principle is to force airflow from top to bottom in a unidirectional manner through an internal negative pressure environment and a high-efficiency filtration system, thereby effectively controlling the spillover and upward movement of dust or harmful substances, and avoiding the inhalation hazards and cross-contamination of operators.

[0003] For example, Chinese patent (publication number: CN218523684U) discloses a negative pressure weighing chamber, including a box body and a working chamber. The working chamber is welded to one end of the bottom wall of the box body, and the front side of the working chamber has an opening. Two passage doors are hinged to the front side opening of the working chamber. An air inlet pipe is fixedly inserted through the bottom of the rear side of the box body. One end of the air inlet pipe is connected to a conduit, and the conduit is located inside the box body. This solution has a first connecting pipe and a second connecting pipe. A first fan is installed at the top of the inner cavity of the first connecting pipe, and a first air filter is installed at one end of the inner cavity of the second connecting pipe. The first fan draws air into the conduit, where it is filtered by the first air filter and then discharged into the working chamber. Then, the second fan draws air from the working chamber through the second connecting pipe into the conduit and simultaneously draws it out.

[0004] However, the airflow from this device is not uniform enough. When it encounters powdery objects, the local wind force may be too strong and blow the objects away. Although the airflow direction is fixed, there will still be a lot of powder loss. Therefore, a negative pressure weighing chamber for ice boron powder is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a negative pressure weighing chamber for ice-boron powder, which has advantages such as uniform airflow and solves the problems mentioned in the background.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a negative pressure weighing chamber for ice-boron powder, comprising a box body, wherein the inner top wall of the box body is provided with a weighing chamber body that can provide a stable space for weighing ice-boron powder, the inner left wall of the box body is provided with an airflow assembly that provides power for gas flow, the top of the weighing chamber body is provided with an adjustment assembly that can control the air intake speed, the inner bottom wall of the box body and below the weighing chamber body is provided with a primary filter assembly that performs initial air filtration, and the inner left wall of the box body is provided with a secondary filter assembly that further filters the air;

[0007] The adjustment assembly includes multiple electric actuators fixed to the inner side wall of the housing, and the bottom of the multiple electric actuators is provided with a descending part.

[0008] Furthermore, the weighing chamber body includes an outer shell, and a guide plate and a support plate are fixed to the inner side wall of the outer shell from top to bottom. The guide plate has a plurality of guide holes penetrating the guide plate, and the support plate has a plurality of vent holes.

[0009] Furthermore, the bottom of the housing is fixed with multiple support legs, which are located on the front and rear sides of the primary filter assembly, respectively.

[0010] Furthermore, an air inlet is provided on the top of the outer casing, an exhaust outlet is provided on the right side of the outer casing and below the support plate, a guide block is fixed on the top of the guide plate, a primary electric fan communicating with the air inlet is provided on the inner top wall of the outer casing, and a secondary electric fan communicating with the exhaust outlet is provided on the inner right wall of the outer casing.

[0011] Furthermore, the descending part includes a connecting plate fixed to the bottom of a plurality of electric push rods. The bottom of the connecting plate is fixed with a plurality of connecting rods penetrating the top wall of the housing. Each connecting rod extends into the guide hole, and the bottom of each connecting rod is fixed with a blocking head extending out of the guide hole.

[0012] Furthermore, the airflow assembly includes an air pump fixed to the left wall of the chamber. The top of the air pump is fixedly connected to an exhaust pipe, and the bottom of the exhaust pipe is fixedly connected to an air inlet pipe. The air inlet pipe is connected to an air inlet hole. The bottom of the exhaust pipe, located on the right side of the weighing chamber body, is fixedly connected to a connecting pipe. The bottom of the connecting pipe is fixedly connected to a discharge pipe, which is connected to an exhaust hole. Both the exhaust pipe and the discharge pipe penetrate the right side wall of the chamber.

[0013] Furthermore, the primary filtration assembly includes a sealing shell fixed to the top wall of the housing, the right side of the sealing shell being fixedly connected to the discharge pipe, a plurality of primary filter plates being fixed to the inner side of the sealing shell, and a plurality of ultraviolet lamps being fixed to the inner side of the sealing shell and to the left of the plurality of primary filter plates.

[0014] Furthermore, the secondary filtration assembly includes a connecting shell fixed to the left wall of the housing, the bottom of the connecting shell being fixedly connected to the sealing shell, a plurality of secondary filter plates being fixedly mounted on the inner side of the connecting shell, and the bottom of the air pump being fixedly connected to the connecting shell.

[0015] Compared with the prior art, this utility model provides a negative pressure weighing chamber for ice boron powder, which has the following beneficial effects:

[0016] 1. The negative pressure weighing chamber used for ice-boron powder, through the cooperation of a primary electric fan, a secondary electric fan and adjustment components, can ensure the pressure difference while improving the uniformity of airflow, thereby better meeting the actual needs of ice-boron powder and improving weighing stability.

[0017] 2. The negative pressure weighing chamber used for ice-boron powder, through the cooperation of primary and secondary filter components, can effectively filter and sterilize the air, achieving a good purification effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the primary filter assembly of this utility model;

[0020] Figure 3 This is a three-dimensional view of the adjustment component of this utility model.

[0021] In the diagram: 1. Box body, 2. Weighing chamber body, 201. Outer shell, 202. Support plate, 203. Guide plate, 3. Airflow assembly, 301. Air pump, 302. Exhaust pipe, 303. Inlet pipe, 304. Connecting pipe, 305. Discharge pipe, 4. Adjustment assembly, 401. Electric push rod, 402. Lowering part, 4021. Connecting plate, 4022. Connecting rod, 4023. Barrier head, 5. Primary filter assembly, 501. Sealing shell, 502. Ultraviolet lamp, 503. Primary filter plate, 6. Secondary filter assembly, 601. Connecting shell, 602. Secondary filter plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 This embodiment provides a negative pressure weighing chamber for ice-boron powder, comprising a housing 1. The inner top wall of the housing 1 is provided with a weighing chamber body 2, which provides a stable space for weighing the ice-boron powder. The inner left wall of the housing 1 is provided with an airflow assembly 3, which provides power for gas flow. The top of the weighing chamber body 2 is provided with an adjustment assembly 4, which controls the air intake speed. The inner bottom wall of the housing 1, located below the weighing chamber body 2, is provided with a primary filter assembly 5, which performs initial air filtration. The inner left wall of the housing 1 is provided with a secondary filter assembly 6, which further filters the air.

[0024] In addition, the weighing chamber body 2 includes an outer shell 201. A pressure sensor is installed inside the outer shell 201. A guide plate 203 and a support plate 202 are fixed from top to bottom on the inner wall of the outer shell 201. The support plate 202 can provide stable support for the weighing of ice boron powder. A sealing door is provided on the front of the outer shell 201. Multiple guide holes are opened on the guide plate 203. Multiple vent holes are opened on the support plate 202. The guide holes and vent holes can ensure smooth airflow. Multiple support legs are fixed at the bottom of the outer shell 201. The multiple support legs can provide sufficient support for the outer shell 201 and leave enough space for the primary filter assembly 5. The multiple support legs are located on the front and rear sides of the primary filter assembly 5 respectively.

[0025] It should be further explained that an air inlet is provided on the top of the outer casing 201, and an exhaust port is provided on the right side of the outer casing 201 and below the support plate 202. The air inlet and exhaust port work together to ensure that the air in the airflow assembly 3 can smoothly enter the outer casing 201 and smoothly discharge the exhaust gas in the outer casing 201 into the airflow assembly 3. A guide block is fixed on the top of the guide plate 203. A primary electric fan communicating with the air inlet is provided on the inner top wall of the outer casing 201, and a secondary electric fan communicating with the exhaust port is provided on the inner right wall of the outer casing 201.

[0026] In addition, the airflow assembly 3 includes an air pump 301 fixed to the left wall of the inner chamber 1. The air pump 301 provides power for airflow. An exhaust pipe 302 is fixedly connected to the top of the air pump 301. An air inlet pipe 303 is fixedly connected to the bottom of the exhaust pipe 302. The air inlet pipe 303 is connected to the air inlet. A gas recovery device is fixedly connected to the right side of the exhaust pipe 302 and located outside the chamber 1. This device is used to treat the exhaust gas discharged from the negative pressure weighing chamber. A purification device is fixedly connected to the right side of the discharge pipe 305 and located outside the chamber 1. This purification device is used to filter the gas drawn into the negative pressure weighing chamber. A connecting pipe 304 is fixedly connected to the bottom of the exhaust pipe 302 and located on the right side of the weighing chamber body 2. An exhaust pipe 305 is fixedly connected to the bottom of the connecting pipe 304. The exhaust pipe 305 is connected to the exhaust port. Both the exhaust pipe 302 and the exhaust pipe 305 penetrate the right side wall of the chamber 1.

[0027] In this embodiment, by combining the weighing chamber body 2 and the airflow component 3, a stable pressure difference can be achieved, thereby ensuring the stability within the weighing chamber body 2.

[0028] Please refer to it again. Figures 1 to 3To promote uniform gas flow, the adjustment component 4 in this embodiment includes multiple electric actuators 401 fixed to the inner wall of the housing 1. The bottom of the multiple electric actuators 401 is provided with a descending part 402. The electric actuators 401 are used to provide power for the height adjustment of the descending part 402. The descending part 402 includes a connecting plate 4021 fixed to the bottom of the multiple electric actuators 401. The connecting plate 4021 plays a connecting role. Through the connection of the connecting rods 4022, the height of multiple blocking heads 4023 is adjusted. The bottom of the connecting plate 4021 is fixed with multiple connecting rods 4022 that penetrate the top wall of the outer shell 201. Each connecting rod 4022 extends into the guide hole, and the bottom of each connecting rod 4022 is fixed with a blocking head 4023 that extends out of the guide hole.

[0029] In addition, the primary filter assembly 5 includes a sealing shell 501 fixed to the inner top wall of the housing 1. The right side of the sealing shell 501 is fixedly connected to the discharge pipe 305. Multiple primary filter plates 503 are fixed inside the sealing shell 501. The primary filter plates 503 can perform initial filtration of the air circulating in the airflow assembly 3. Multiple ultraviolet lamps 502 are fixed inside the sealing shell 501 and to the left of the multiple primary filter plates 503. The multiple ultraviolet lamps 502 can disinfect bacteria and other substances in the air.

[0030] It is known that the secondary filter assembly 6 includes a connecting shell 601 fixed to the left wall of the housing 1. The bottom of the connecting shell 601 is fixedly connected to the sealing shell 501. Multiple secondary filter plates 602 are fixed on the inner side of the connecting shell 601. The secondary filter plates 602 can filter dust again to improve the purity of the air. The bottom of the air pump 301 is fixedly connected to the connecting shell 601.

[0031] In this embodiment, each barrier head 4023 is conical. This shape can control the space inside the guide hole during lifting and lowering, thereby controlling the air outlet speed and air volume, and improving the uniformity of the air outlet. A controller is provided on the back of the housing 1, which is used to control multiple electric push rods 401.

[0032] It should be noted that, through the cooperation of the weighing chamber body 2, airflow assembly 3, adjustment assembly 4, primary filter assembly 5 and secondary filter assembly 6, a stable pressure difference can be ensured inside the outer shell 201, and dust can be effectively filtered, thereby improving the stability and uniformity of gas flow inside the outer shell 201.

[0033] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0034] The working principle of the above embodiments is as follows:

[0035] The air pump 301 is started, which drives the gas in the airflow assembly 3 to flow steadily. Through the cooperation of the primary filter plate 503 and the secondary filter plate 602, impurities in the air can be effectively filtered. Then, multiple ultraviolet lamps 502 disinfect the air. Finally, through the cooperation of the primary electric fan and the secondary electric fan, a stable pressure difference is achieved inside the outer shell 201, and a stable and single flow path is provided for the air to circulate inside the outer shell 201. The electric actuator 401 drives the connecting rod 4022 and the baffle head 4023 to rise and fall, thereby adjusting the gap between the baffle head 4023 and the guide hole, so as to adjust the flow rate.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A negative pressure weighing chamber for ice-boron powder, comprising a housing (1), characterized in that: The inner top wall of the box (1) is provided with a weighing chamber body (2) that can provide a stable space for weighing ice borax. The inner left wall of the box (1) is provided with an airflow assembly (3) that provides power for gas flow. The top of the weighing chamber body (2) is provided with an adjustment assembly (4) that can control the speed of air intake. The inner bottom wall of the box (1) and below the weighing chamber body (2) is provided with a primary filter assembly (5) that performs initial air filtration. The inner left wall of the box (1) is provided with a secondary filter assembly (6) that further filters the air. The adjustment assembly (4) includes multiple electric actuators (401) fixed to the inner wall of the housing (1), and the bottom of the multiple electric actuators (401) is provided with a descending part (402).

2. The negative pressure weighing chamber for ice boron powder according to claim 1, characterized in that: The weighing chamber body (2) includes an outer shell (201). The inner sidewall of the outer shell (201) is fixed with a guide plate (203) and a support plate (202) from top to bottom. The guide plate (203) has multiple guide holes that penetrate the guide plate (203), and the support plate (202) has multiple vent holes.

3. A negative pressure weighing chamber for ice-boron powder according to claim 2, characterized in that: The bottom of the outer casing (201) is fixed with multiple support legs, which are located on the front and rear sides of the primary filter assembly (5).

4. A negative pressure weighing chamber for ice-boron powder according to claim 2, characterized in that: An air inlet is provided on the top of the outer casing (201), and an exhaust port is provided on the right side of the outer casing (201) and below the support plate (202). A guide block is fixed on the top of the guide plate (203). A primary electric fan communicating with the air inlet is provided on the inner top wall of the outer casing (201), and a secondary electric fan communicating with the exhaust port is provided on the inner right wall of the outer casing (201).

5. A negative pressure weighing chamber for ice-boron powder according to claim 1, characterized in that: The descending part (402) includes a connecting plate (4021) fixed to the bottom of a plurality of electric actuators (401). The bottom of the connecting plate (4021) is fixed with a plurality of connecting rods (4022) penetrating the top wall of the outer casing (201). Each connecting rod (4022) extends into the guide hole, and the bottom of each connecting rod (4022) is fixed with a blocking head (4023) extending out of the guide hole.

6. A negative pressure weighing chamber for ice-boron powder according to claim 4, characterized in that: The airflow assembly (3) includes an air pump (301) fixed to the left wall of the box (1). The top of the air pump (301) is fixedly connected to an exhaust pipe (302), and the bottom of the exhaust pipe (302) is fixedly connected to an air inlet pipe (303). The air inlet pipe (303) is connected to an air inlet. The bottom of the exhaust pipe (302) and located on the right side of the weighing chamber body (2) is fixedly connected to a connecting pipe (304). The bottom of the connecting pipe (304) is fixedly connected to a discharge pipe (305). The discharge pipe (305) is connected to an exhaust hole. Both the exhaust pipe (302) and the discharge pipe (305) penetrate the right side wall of the box (1).

7. A negative pressure weighing chamber for ice-boron powder according to claim 6, characterized in that: The primary filter assembly (5) includes a sealing shell (501) fixed to the inner top wall of the housing (1). The right side of the sealing shell (501) is fixedly connected to the discharge pipe (305). Multiple primary filter plates (503) are fixed inside the sealing shell (501). Multiple ultraviolet lamps (502) are fixed inside the sealing shell (501) and to the left of the multiple primary filter plates (503).

8. A negative pressure weighing chamber for ice-boron powder according to claim 7, characterized in that: The secondary filter assembly (6) includes a connecting shell (601) fixed to the left wall of the inner wall of the housing (1). The bottom of the connecting shell (601) is fixedly connected to the sealing shell (501). Multiple secondary filter plates (602) are fixed on the inner side of the connecting shell (601). The bottom of the air pump (301) is fixedly connected to the connecting shell (601).

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