Negative pressure weighing chamber for medicine filling

Abstract

The utility model relates to the technical field of medicine filling negative pressure chambers, and discloses a negative pressure weighing chamber for medicine filling, which comprises a conveying track, a workbench, a weighing device and a filling device, and further comprises a working chamber, a super negative pressure chamber, a positive pressure chamber and a device chamber, the equipment room is arranged on the front side of the working room, the positive pressure rooms are arranged on the left and right sides of the working room, and the super-negative pressure room is arranged between the positive pressure rooms and the working room; an upper interlayer and a lower interlayer; the lower interlayer is arranged at the bottom of the working chamber, and the upper interlayer is arranged above the working chamber. The fresh air supply structure is arranged in the equipment room and supplies air into the working chamber through the lower interlayer; and the negative pressure maintaining structure is used for maintaining the air pressure states of the super negative pressure chamber, the positive pressure chamber and the working chamber. Compared with the prior art, the device has the advantages that the device is provided with the ultra-negative pressure chamber and the positive pressure chamber, pollution isolation is achieved through cooperation of the ultra-negative pressure chamber and the positive pressure chamber on the two sides, and high cleanliness of a working chamber is guaranteed in the material conveying process.

Description

TECHNICAL FIELD

[0001] The utility model relates to a medicine filling negative pressure chamber technical field, specifically point to a kind of negative pressure weighing chamber for medicine filling. BACKGROUND

[0002] Negative pressure weighing chamber is a kind of equipment specially used for weighing powder material, and is widely used in pharmaceutical, food, chemical industry and other industries. Its core function is to form a local negative pressure environment through negative pressure system, so that the goods on the weighing pan are subjected to upward force, thereby high-precision weighing is carried out, while dust diffusion and cross-contamination are prevented, and high cleanliness of the operating area is ensured.

[0003] The existing negative pressure weighing chamber on the market mostly has no fresh air supply. After long-term use, the internal air quality is poor, which is not conducive to normal activities of people. In order to ensure the negative pressure condition of the internal space and reduce the pollution caused by the outside world, it is often airtight structure, which is not conducive to the transportation and transfer of materials, and the efficiency of filling and weighing is low. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the above technical difficulties, and to provide a negative pressure weighing chamber for medicine filling. The negative pressure weighing chamber for medicine filling transfers goods into the working chamber through the conveyor belt, and realizes pollution isolation through the cooperation of the two sides of the super negative pressure chamber and the positive pressure chamber. At the same time, through the fresh air supply structure and the negative pressure maintaining structure, the negative pressure environment and air quality in the working chamber are maintained.

[0005] To solve the above technical problems, the technical scheme provided by the utility model is as follows:

[0006] A negative pressure weighing chamber for medicine filling, comprising a conveyor belt, a workbench, a weighing device and a filling device, further comprising:

[0007] A working chamber, the workbench, the weighing device and the filling device are arranged in the working chamber respectively, and a pair of conveyor belts are arranged on the left and right sides of the working chamber;

[0008] A super negative pressure chamber, a positive pressure chamber and a device chamber; the device chamber is arranged on the front side of the working chamber, the positive pressure chamber is arranged on the left and right sides of the working chamber, and the super negative pressure chamber is arranged between the positive pressure chamber and the working chamber;

[0009] An upper interlayer and a lower interlayer; the lower interlayer is arranged at the bottom of the working chamber, and the upper interlayer is arranged above the working chamber.

[0010] A fresh air supply structure arranged in the device chamber, which supplies air to the working chamber through the lower interlayer;

[0011] A negative pressure maintaining structure, which maintains the air pressure state of the super negative pressure chamber, the positive pressure chamber and the working chamber.

[0012] As improvement, the conveying caterpillar belt is connected with the outside through the same side hypobaric chamber and the positive pressure chamber respectively, and the hypobaric chamber is communicated with the positive pressure chamber and the working chamber respectively.

[0013] As improvement, the fresh air supply structure comprises a fresh air box, a static pressure air box, a fresh air fan, a high-efficiency filter, a flow equalizing plate, a primary efficiency filter and a medium efficiency filter; the lower interlayer top is provided with an air window, the high-efficiency filter is arranged at the bottom of the air window, the static pressure air box is arranged in the equipment room and connected with the lower interlayer and the fresh air box arranged outside through air pipes, the fresh air box is provided with a ventilation opening, the primary efficiency filter is arranged in the fresh air box, the fresh air fan is installed between the fresh air box and the static pressure air box, the flow equalizing plate is vertically arranged in the static pressure air box, and the medium efficiency filter is installed between the static pressure air box and the lower interlayer.

[0014] As improvement, the negative pressure maintaining structure comprises a circulating fan, a supply fan and an exhaust fan; the upper interlayer bottom is provided with an air window corresponding to the lower interlayer air window, and is connected with the positive pressure chamber through the supply fan to supply air to the positive pressure chamber, the static pressure air box is connected with the two side hypobaric chambers through air pipes, the circulating fan is installed between the static pressure air box and the hypobaric chamber to send air in the hypobaric chamber into the static pressure air box, the exhaust fan is arranged between the hypobaric chamber and the positive pressure chamber to send air in the hypobaric chamber into the positive pressure chamber, so that the air pressure in the hypobaric chamber is less than the air pressure in the working chamber and the air pressure in the positive pressure chamber.

[0015] The utility model has the advantages that compared with the prior art, the utility model has the advantages that:

[0016] 1. The utility model discloses a hypobaric chamber and a positive pressure chamber, which are matched to realize pollution isolation, ensure the high cleanliness of the working chamber during material conveying, are more convenient to use, and have higher efficiency of medicine filling and weighing.

[0017] 2. The utility model discloses a fresh air supply structure, which can continuously supply fresh air to the working chamber, improve the oxygen content and air freshness in the working chamber, and improve the working environment comfort of the people in the working chamber, so that the utility model is more convenient and comfortable to use.

[0018] 3. The utility model discloses a multi-stage filter, which circulates and filters the air, has higher cleanliness of the working chamber, has longer service life of each filter, is more convenient to use, and has better filtering effect. DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the working chamber of the utility model.

[0021] Figure 3It is the side view section schematic diagram of the utility model.

[0022] Figure 4 It is the lower view section schematic diagram of the utility model.

[0023] Figure 5 It is the structure schematic diagram of the equipment room of the utility model.

[0024] Figure 6 It is the structure schematic diagram of the fresh air supply structure of the utility model.

[0025] As shown in the figure: 1, workroom;2, super negative pressure room;3, positive pressure room;4, equipment room;5, lower interlayer;6, upper interlayer;7, partition;8, air window;9, high efficiency filter;10, fresh air box;11, conveying port;12, conveying track;13, fresh air box;14, primary efficiency filter;15, flow uniforming plate;16, fresh air fan;17, circulating fan;18, medium efficiency filter;19, air supply fan;20, air extractor;21, workbench;22, filling equipment;23, weighing equipment. DETAILED DESCRIPTION

[0026] In the description of the utility model, it needs to understand that, the orientation or position relation indicated by the terms "center", "transverse", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the restriction of the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more. In addition, the term "include" and any variation thereof are intended to cover non-exclusive inclusion.

[0027] The utility model will be further described in detail in combination with the drawings.

[0028] A kind of negative pressure weighing chamber for medicine filling, as Figure 1 Shown, specifically includes:

[0029] Workshop 1, super negative pressure room 2, positive pressure room 3, equipment room 4, upper interlayer 6 and lower interlayer 5; the workshop 1 is a negative pressure space, and the bottom is provided with the lower interlayer 5, the rear side is provided with a door, the equipment room 4 is arranged at the front side of the workshop 1 and is isolated from the workshop 1 by a partition 7, and the left and right sides of the workshop 1 are provided with the super negative pressure room 2 and the positive pressure room 3, wherein the super negative pressure room 2 is arranged between the positive pressure room 3 and the workshop 1, and the air pressure in the super negative pressure room 2 is less than that in the workshop 1, the air pressure in the positive pressure room 3 is positive pressure, and the upper interlayer 6 is arranged above the above-mentioned parts, and the upper interlayer 6 and the lower interlayer 5 are correspondingly arranged with air windows 8, and as shown in Figure 2 , the workshop 1, the super negative pressure room 2 and the positive pressure room 3 are correspondingly provided with conveying ports 11 for communicating gas and transferring materials.

[0030] The new air supply structure, as shown in Figure 5 , Figure 6 , comprises a new air tank 13, a static pressure air tank 10, a new air fan 16, a high-efficiency filter 9, a flow equalizing plate 15, a primary efficiency filter 14 and a medium efficiency filter 18; the static pressure air tank 10 is arranged in the equipment room 4, and the bottom is connected with the lower interlayer 5 through an air pipe, and the medium efficiency filter 18 is installed at the bottom air pipe, the new air tank 13 is fixed outside the equipment room 4 and is connected with the static pressure air tank 10 through an air pipe and the new air fan 16, and the primary efficiency filter 14 is arranged inside, meanwhile, the left and right sides of the static pressure air tank 10 are respectively connected with two super negative pressure rooms 2 through air pipes, a plurality of flow equalizing plates 15 are vertically arranged and fixed in the static pressure air tank 10, and are correspondingly arranged with air pipes (except the bottom air pipe), the high-efficiency filter 9 is installed and fixed in the lower interlayer 5 and is arranged at the bottom of the air window 8.

[0031] The negative pressure maintaining structure, as shown in Figure 4 , comprises a circulating fan 17, an air supply fan 19 and an air extractor 20; the upper interlayer 6 is connected with the two positive pressure rooms 3 through the air supply fan 19 arranged at the top of the positive pressure room 3, and air is supplied to the positive pressure room 3, the circulating fan 17 is installed between the static pressure air tank 10 and the super negative pressure room 2, and air in the super negative pressure room 2 is sent into the static pressure air tank 10, and the air extractor 20 is arranged between the super negative pressure room 2 and the positive pressure room 3, and air in the super negative pressure room 2 is sent into the positive pressure room 3 through the air extractor 20, wherein the circulating fan 17 is two, the air supply fan 19 is four, and the air extractor 20 is two, so that the air pressure states of the super negative pressure room 2, the positive pressure room 3 and the workshop 1 are maintained stable (the workshop 1 is a negative pressure space, the air pressure in the super negative pressure room 2 is less than that in the workshop 1, and the air pressure in the positive pressure room 3 is positive pressure).

[0032] The conveying belts 12, the workbench 21, the weighing device 23 and the filling device 22; the conveying belts 12 are arranged on both sides of the workroom 1 in pairs and are arranged in the corresponding conveying ports 11 respectively, and the workroom 1, the workbench 21, the weighing device 23 and the filling device 22 are arranged and fixed on the partition plate 7 in the workroom 1. The conveying belts 12, the workbench 21, the weighing device 23 and the filling device 22 and the use mode thereof are all mature technologies.

[0033] The above-mentioned fans are all variable frequency fans.

[0034] In the specific implementation of the embodiment:

[0035] The worker wearing a clean clothes enters the workroom 1 after dust removal and disinfection, starts the fans, forms negative pressure in the workroom 1 and the super negative pressure room 2, forms local positive pressure in the positive pressure room 3, and the air pressure in the super negative pressure room 2 is less than the air pressure in the workroom 1. At this time, the specific wind direction at each conveying port 11 is: the workroom 1 to the super negative pressure room 2, the positive pressure room 3 to the super negative pressure room 2, the positive pressure room 3 to the outdoor, and the gas flow in the workroom 1 is from bottom to top. In this process, the gas in the positive pressure room 3 is supplemented by the air supply fan 19 and the air exhaust fan 20 from the workroom 1 and the super negative pressure room 2, the gas in the super negative pressure room 2 leaves through the circulating fan 17 and the air exhaust fan 20, the workroom 1 mixes and filters the fresh air from the outside and the relatively clean air in the super negative pressure room 2 through the fresh air supply structure and then supplements, and at this time, the materials are transported into and out of the workroom 1 through the conveying belts 12 on both sides, and the drug filling and weighing operations are carried out in the workroom 1.

[0036] The above describes the utility model and its implementation mode, which is not limited, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, without creative design, similar structure modes and embodiments of the technical scheme are all within the protection scope of the utility model.

Claims

1. A negative pressure weighing chamber for pharmaceutical filling, comprising a conveyor belt (12), a worktable (21), a weighing device (23) and a filling device (22), characterized in that, Also include: Workshop (1), workbench (21), weighing equipment (23) and filling equipment (22) are arranged in the workshop (1) respectively, and a pair of conveying belts (12) are arranged on the left and right sides of the workshop (1); The super negative pressure room (2), the positive pressure room (3) and the equipment room (4); The equipment room (4) is arranged on the front side of the workshop (1), the positive pressure room (3) is arranged on the left and right sides of the workshop (1), and the super negative pressure room (2) is arranged between the positive pressure room (3) and the workshop (1); The upper interlayer (6) and the lower interlayer (5); The lower interlayer (5) is arranged at the bottom of the workshop (1), and the upper interlayer (6) is arranged above the workshop (1); Fresh air supply structure, arranged in the equipment room (4), air is sent to the workshop (1) through the lower interlayer (5); The negative pressure maintaining structure maintains the air pressure state of the super negative pressure room (2), the positive pressure room (3) and the workshop (1) through the negative pressure maintaining structure.

2. A negative pressure weighing chamber for pharmaceutical filling according to claim 1, characterized in that: The conveying belts (12) are connected with the outside through the same side super negative pressure room (2) and positive pressure room (3) respectively, and the super negative pressure room (2) is communicated with the positive pressure room (3) and the workshop (1) respectively.

3. A negative pressure weighing chamber for pharmaceutical filling according to claim 1, characterized in that: The fresh air supply structure includes a fresh air box (13), a static pressure air box (10), a fresh air fan (16), a primary filter (14) and a medium efficiency filter (18); The lower interlayer (5) is provided with a window (8) at the top, the static pressure air box (10) is arranged in the equipment room (4), and is connected with the lower interlayer (5) and the fresh air box (13) arranged outside through air pipes, the fresh air box (13) is provided with a ventilation opening, the primary filter (14) is arranged in the fresh air box (13), the fresh air fan (16) is installed between the fresh air box (13) and the static pressure air box (10), and the medium efficiency filter (18) is installed between the static pressure air box (10) and the lower interlayer (5).

4. A negative pressure weighing chamber for pharmaceutical filling according to claim 3, characterized in that: The negative pressure maintaining structure includes a circulating fan (17), a air supply fan (19) and an air extractor (20); The upper interlayer (6) is provided with a window (8) corresponding to the window (8) of the lower interlayer (5) at the bottom, air is sent to the positive pressure room (3) through the air supply fan (19) connected with the positive pressure room (3), the static pressure air box (10) is connected with the super negative pressure room (2) on both sides through air pipes, the circulating fan (17) is installed between the static pressure air box (10) and the super negative pressure room (2), and air in the super negative pressure room (2) is sent into the static pressure air box (10), the air extractor (20) is arranged between the super negative pressure room (2) and the positive pressure room (3), and air in the super negative pressure room (2) is sent into the positive pressure room (3) through the air extractor (20).

5. A negative pressure weighing chamber for pharmaceutical filling according to claim 3, characterized in that: It also includes a high efficiency filter (9) arranged at the bottom of the window (8) of the lower interlayer (5).

6. A negative pressure weighing chamber for pharmaceutical filling according to claim 3, characterized in that: It also includes a flow equalizing plate (15) which is vertically arranged and fixed in the static pressure air box (10).

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