Air curtain partition device of negative pressure weighing chamber

Abstract

The utility model belongs to the technical field of air curtain partition, and particularly relates to an air curtain partition device of a negative pressure weighing chamber, which comprises a bearing plate and a U-shaped support, the bottom of the bearing plate is provided with an air curtain machine, and the size of the U-shaped support can be adjusted. The lifting assembly is used for adjusting the height of the bearing plate and arranged on the top of the U-shaped support. The U-shaped support comprises a U-shaped plate, limiting grooves are formed in the two sides of the U-shaped plate, the bearing plate is slidably connected into the limiting grooves, a storage groove is formed in the top end of an inner cavity of the U-shaped plate, U-shaped grooves are formed in the two sides of the U-shaped plate, and U-shaped blocks are slidably connected into the U-shaped grooves. According to the air curtain partition device, the size of the air curtain partition device can be adjusted according to the height of the negative pressure weighing chamber, and the occupied space of the air curtain partition device can be reduced when the air curtain partition device is transported.

Description

TECHNICAL FIELD

[0001] The utility model relates to air curtain partition technical field, concretely is air curtain partition device of negative pressure weighing chamber. BACKGROUND

[0002] The negative pressure weighing chamber is a kind of local purification equipment for pharmacy, microbiological research and scientific experiment etc. place special, it provides a kind of vertical one-way airflow, part clean air circulates in working area, part is discharged to nearby area, so that working area generates negative pressure, prevents cross contamination, is used to guarantee the high cleanliness environment of working area.

[0003] The operation area and weighing area in the negative pressure weighing chamber are mostly separated using plastic vertical curtain, plastic vertical curtain can easily appear aging deformation in the use process, need to be replaced regularly, to reduce cost, the existing negative pressure weighing chamber selects the air curtain machine to form air curtain partition, and the operation area and weighing area are separated, when the air curtain machine needs to be disassembled and overhauled, since the air curtain machine is generally installed on the top of the negative pressure weighing chamber, there is the risk of falling of the air curtain machine due to improper operation during disassembly.

[0004] Although the existing patent CN220081263U can solve the above problems, the size of the patent is usually fixed during operation, so that the size of the air curtain partition device cannot be adjusted according to the actual situation, for example, when the air curtain partition device is transported, it will occupy a certain space. Therefore, a kind of air curtain partition device of negative pressure weighing chamber is invented. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical scheme:

[0006] An air curtain partition device of negative pressure weighing chamber, comprising a bearing plate, the bottom of the bearing plate is provided with an air curtain machine, further comprising:

[0007] The size of the U-shaped support can be adjusted;

[0008] The lifting assembly is used to adjust the height of the bearing plate, and the lifting assembly is arranged on the top of the U-shaped support.

[0009] As a preferred scheme of the air curtain partition device of negative pressure weighing chamber, the U-shaped support comprises:

[0010] U-shaped plate

[0011] Limiting groove, limiting grooves are formed on both sides of the U-shaped plate, and the bearing plate is slidingly connected in the limiting groove;

[0012] Storage groove, the inner cavity top end of the U-shaped plate is provided with a storage groove;

[0013] U-shaped groove, the two sides of the U-shaped plate are provided with U-shaped grooves;

[0014] U-shaped block, the U-shaped groove is slidably connected with a U-shaped block.

[0015] As a preferred scheme of the air curtain partition device of the negative pressure weighing chamber, the U-shaped support further comprises:

[0016] First connecting plate, the first connecting plate is fixedly installed on the two sides of the U-shaped plate;

[0017] Air cylinder, the air cylinder is fixedly installed on the bottom of the first connecting plate;

[0018] Second connecting plate, the second connecting plate is fixedly installed on the outer side of the U-shaped block, and the piston rod of the air cylinder is fixedly installed on the second connecting plate.

[0019] As a preferred scheme of the air curtain partition device of the negative pressure weighing chamber, the lifting assembly comprises:

[0020] Side plate, two groups of side plates are fixedly installed at the two ends of the top of the U-shaped plate;

[0021] Pivot, the pivot is rotatably connected to the side plate through a bearing;

[0022] Spool, the spool is fixedly installed between the two groups of pivots;

[0023] Servo motor, the servo motor is fixedly installed on one group of side plates, and the output shaft of the servo motor is fixedly connected with the pivot;

[0024] Steel wire rope, one end of the steel wire rope is fixedly installed on the spool, and the spool can wind the steel wire rope, and the other end of the steel wire rope is fixedly installed on the bearing plate through the U-shaped plate.

[0025] As a preferred scheme of the air curtain partition device of the negative pressure weighing chamber, the bottom of the bearing plate is detachably connected with the air curtain machine through the connecting assembly;

[0026] The connecting assembly comprises:

[0027] Square groove, the bottom end of the bearing plate is provided with a square groove;

[0028] Square block, the square block is fixedly installed on the top of the air curtain machine, and the square block is inserted into the square groove;

[0029] First sliding groove, a first sliding groove in communication with the square groove is formed in the bearing plate on one side of the square groove;

[0030] Second sliding groove, the second sliding groove is set up in the bearing plate above the first sliding groove and is communicated with the first sliding groove.

[0031] As a preferred scheme of the air curtain partition device of the negative pressure weighing chamber, the connecting assembly further comprises:

[0032] Positioning hole, the positioning hole is set up in the square block;

[0033] Slide rod, the slide rod is slidably connected in the first sliding groove, and one end of the slide rod is inserted into the positioning hole.

[0034] As a preferred scheme of the air curtain partition device of the negative pressure weighing chamber, the connecting assembly further comprises:

[0035] Drive rod, the drive rod is slidably connected in the second sliding groove, and the drive rod is fixedly installed on the side surface of the slide rod;

[0036] Guide groove, the guide groove is set up in the bearing plate on the side of the first sliding groove and is communicated with the first sliding groove.

[0037] As a preferred scheme of the air curtain partition device of the negative pressure weighing chamber, the connecting assembly further comprises:

[0038] Guide rod, the guide rod is fixedly installed on the other end of the slide rod, and the guide rod is slidably connected in the guide groove;

[0039] Spring, the spring is sleeved on the guide rod, and two ends of the spring are fixedly connected with the first sliding groove and the slide rod.

[0040] Compared with the prior art:

[0041] By setting the U-shaped support with adjustable size, and by setting the lifting assembly for adjusting the height of the bearing plate, the size of the air curtain partition device can be adjusted according to the height of the negative pressure weighing chamber, and the occupied space can be reduced when the air curtain partition device is transported. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 It is the structure front view schematic diagram of the utility model structure;

[0043] Figure 2 It is the structure front view schematic diagram of the utility model structure; Figure 1 It is the structure enlarged schematic diagram of the utility model in A place;

[0044] Figure 3 It is the structure front view schematic diagram of the utility model structure; Figure 2 It is the structure enlarged schematic diagram of the utility model in A1 place;

[0045] Figure 4The utility model discloses a U-shaped plate structure schematic diagram.

[0046] Figure 5 The utility model discloses a U-shaped block structure schematic diagram.

[0047] In the drawing: U-shaped plate 10, limit groove 11, storage groove 12, U-shaped groove 13, U-shaped block 14, first connecting plate 15, cylinder 16, second connecting plate 17, bearing plate 20, air curtain machine 21, side plate 30, pivot 31, spool 32, servo motor 33, steel wire rope 34, square groove 40, square 41, first sliding groove 42, second sliding groove 43, positioning hole 44, sliding rod 45, drive rod 46, guide groove 47, guide rod 48, spring 49. Specific implementation

[0048] In order to make the utility model's purpose, technical scheme and advantage more clearly, below will combine with the drawing to the utility model's implementation way make further detailed description.

[0049] The utility model provides a kind of air curtain partition device of negative pressure weighing chamber, please refer to Figures 1-5 , including bearing plate 20, and the bottom of bearing plate 20 is equipped with air curtain machine 21;

[0050] Still include: the size of U-shaped support that can be adjusted;

[0051] U-shaped support includes: U-shaped plate 10, limit groove 11, storage groove 12, U-shaped groove 13, U-shaped block 14, first connecting plate 15, cylinder 16, second connecting plate 17;

[0052] The both sides of U-shaped plate 10 are equipped with limit groove 11, and bearing plate 20 is slidably connected in limit groove 11, and the inner chamber top end of U-shaped plate 10 is equipped with storage groove 12, and the both sides of U-shaped plate 10 are equipped with U-shaped groove 13, and U-shaped block 14 is slidably connected in U-shaped groove 13, and the both sides of U-shaped plate 10 are fixedly installed first connecting plate 15, and cylinder 16 is fixedly installed on the bottom of first connecting plate 15, and second connecting plate 17 is fixedly installed on the outside of U-shaped block 14, and the piston rod of cylinder 16 is fixedly installed second connecting plate 17;Two groups of cylinder 16 can be synchronized, same speed etc. operation according to demand with a group of switch to connect.

[0053] Still include: the height of bearing plate 20 is adjusted to the lifting assembly, and lifting assembly is equipped on the top of U-shaped support;

[0054] Lifting assembly includes: side plate 30, pivot 31, spool 32, servo motor 33, steel wire rope 34;

[0055] The top of the U-shaped plate 10 is fixedly provided with two groups of side plates 30, the rotating shaft 31 is rotatably connected to the side plate 30 through a bearing, the spool 32 is fixedly installed between the two groups of rotating shafts 31, the servo motor 33 is fixedly installed on one group of side plates 30, the output shaft of the servo motor 33 is fixedly connected to the rotating shaft 31, one end of the steel wire rope 34 is fixedly installed on the spool 32, the spool 32 can wind the steel wire rope 34, the other end of the steel wire rope 34 is fixedly installed on the bearing plate 20 through the U-shaped plate 10; according to the requirement, the two groups of servo motors 33 are connected to a group of switches, so that the two groups of servo motors 33 can be synchronously and uniformly operated.

[0056] The bottom of the bearing plate 20 is detachably connected to the air curtain machine 21 through a connecting assembly;

[0057] The connecting assembly comprises a square groove 40, a square block 41, a first sliding groove 42, a second sliding groove 43, a positioning hole 44, a sliding rod 45, a driving rod 46, a guide groove 47, a guide rod 48 and a spring 49.

[0058] The bottom of the bearing plate 20 is provided with the square groove 40, the square block 41 is fixedly installed on the top of the air curtain machine 21 and is inserted into the square groove 40, the first sliding groove 42 is formed in the bearing plate 20 on the side of the square groove 40 and is in communication with the square groove 40, the second sliding groove 43 is formed in the bearing plate 20 above the first sliding groove 42 and is in communication with the first sliding groove 42, the positioning hole 44 is formed in the square block 41, the sliding rod 45 is slidably connected to the first sliding groove 42 and one end of the sliding rod 45 is inserted into the positioning hole 44, the driving rod 46 is slidably connected to the second sliding groove 43 and is fixedly installed on the side surface of the sliding rod 45, the guide groove 47 is formed in the bearing plate 20 on the side of the first sliding groove 42 and is in communication with the first sliding groove 42, the guide rod 48 is fixedly installed on the other end of the sliding rod 45 and is slidably connected to the guide groove 47, and the spring 49 is sleeved on the guide rod 48 and the two ends of the spring 49 are fixedly connected to the first sliding groove 42 and the sliding rod 45.

[0059] In specific use, the specific steps are as follows:

[0060] First, the height of the U-shaped plate 10 is adjusted by the air cylinder 16 until the U-shaped support is at the desired size; then, the U-shaped support is fixed between the operation area and the weighing area of the negative pressure weighing chamber, and then the end of the sliding rod 45 is located in the first sliding groove 42 by driving the driving rod 46, at this time, the spring 49 will be deformed, then the block 41 is inserted into the square groove 40, after insertion, the end of the sliding rod 45 is inserted into the positioning hole 44 by the elastic force of the spring 49, thus the air curtain machine 21 can be installed on the bearing plate 20, after installation, the bearing plate 20 is lifted to the top point by the I-shaped wheel 32 winding the steel wire rope 34 through the servo motor 33, and then the air curtain machine 21 is started to generate an air curtain to separate the operation area and the weighing area of the negative pressure weighing chamber.

[0061] Although the present application has been described with reference to the embodiments above, various improvements can be made and equivalent parts can be substituted without departing from the scope of the present application. In particular, each feature disclosed in the embodiments of the present application can be used in any combination with each other, provided that there is no structural conflict. The combinations of these features are not exhaustively described in the specification only for the purpose of saving space and resources. Therefore, the present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A gas curtain partition device of a negative pressure weighing chamber, comprising a bearing plate (20), the bottom of the bearing plate (20) is provided with a gas curtain machine (21), characterized in that, Also include: The size of the U-shaped support can be adjusted; The lifting assembly for adjusting the height of the bearing plate (20) is provided on the top of the U-shaped support.

2. The air curtain partitioning device for a negative pressure weighing chamber according to claim 1, characterized in that The U-shaped support includes: U-shaped plate (10) Limiting groove (11), both sides of the U-shaped plate (10) are provided with limiting grooves (11), and the bearing plate (20) is slidably connected in the limiting groove (11); The receiving groove (12) is provided at the top of the inner cavity of the U-shaped plate (10); U-shaped groove (13), both sides of the U-shaped plate (10) are provided with U-shaped grooves (13); U-shaped block (14), the U-shaped block (14) is slidably connected in the U-shaped groove (13).

3. The air curtain partitioning device for a negative pressure weighing chamber according to claim 2, characterized in that The U-shaped support further includes: First connecting plate (15), the first connecting plate (15) is fixedly installed on both sides of the U-shaped plate (10); Air cylinder (16), the air cylinder (16) is fixedly installed on the bottom of the first connecting plate (15); Second connecting plate (17), the second connecting plate (17) is fixedly installed on the outer side of the U-shaped block (14), and the piston rod of the air cylinder (16) is fixedly installed on the second connecting plate (17).

4. The air curtain partitioning device for a negative pressure weighing chamber according to claim 2, characterized in that The lifting assembly includes: Side plate (30), two groups of side plates (30) are fixedly installed at both ends of the top of the U-shaped plate (10); Pivot (31), the pivot (31) is rotatably connected to the side plate (30) through a bearing; I-beam (32), the I-beam (32) is fixedly installed between the two groups of pivots (31); Servo motor (33), the servo motor (33) is fixedly installed on one group of side plates (30), and the output shaft of the servo motor (33) is fixedly connected with the pivot (31); Steel wire rope (34), one end of the steel wire rope (34) is fixedly installed on the I-beam (32), and the I-beam (32) can wind the steel wire rope (34), the other end of the steel wire rope (34) passes through the U-shaped plate (10) and is fixedly installed on the bearing plate (20).

5. The air curtain partitioning device for a negative pressure weighing chamber according to claim 1, characterized in that The bottom of the bearing plate (20) is detachably connected with the air curtain machine (21) through the connecting assembly; The connecting assembly includes: Square groove (40), the bottom end of the bearing plate (20) is provided with a square groove (40); Square block (41), the square block (41) is fixedly installed on the top of the air curtain machine (21), and the square block (41) is inserted into the square groove (40); First sliding groove (42), a first sliding groove (42) is formed in the bearing plate (20) on one side of the square groove (40) and communicates with the square groove (40); Second sliding groove (43), a second sliding groove (43) is formed in the bearing plate (20) above the first sliding groove (42) and communicates with the first sliding groove (42).

6. A gas curtain partitioning device for a negative pressure weighing chamber according to claim 5, characterized in that The connecting assembly further includes: Positioning hole (44), the positioning hole (44) is formed in the square block (41); Slide rod (45), the slide rod (45) is slidably connected in the first sliding groove (42), and one end of the slide rod (45) is inserted into the positioning hole (44).

7. A gas curtain partitioning apparatus for a negative pressure weighing chamber according to claim 6, characterized in that The connecting assembly further includes: A driving rod (46) is slidingly connected in the second sliding groove (43) and fixedly installed on the side of the sliding rod (45); A guide groove (47) is formed in the bearing plate (20) on the side of the first sliding groove (42) and communicates with the first sliding groove (42).

8. A gas curtain partitioning apparatus for a negative pressure weighing chamber according to claim 7, characterized in that The connecting assembly further comprises: A guide rod (48) is fixedly installed on the other end of the sliding rod (45) and slidingly connected in the guide groove (47); A spring (49) is sleeved on the guide rod (48) and has two ends fixedly connected with the first sliding groove (42) and the sliding rod (45).

Images