Movable laminar flow hood

Abstract

The utility model discloses a movable laminar flow hood in the technical field of laminar flow hoods, which comprises a positioning mechanism, the positioning mechanism comprises a laminar flow hood main body and a movable base, the movable base is connected with the laminar flow hood main body through a bolt, a motor is arranged at the top of the movable base, a movable cavity is formed in the movable base, and the motor is connected with the movable cavity. A movable cavity is formed in the movable base, a driving disc is rotationally arranged in the movable cavity, a rotating shaft of the motor is inserted into the movable cavity and fixedly connected with the driving disc, toothed plate pieces are movably inserted into the two sides of the movable base, and one ends of the toothed plate pieces are inserted into the movable cavity and are in sliding fit with the inner wall of the driving disc; when the laminar flow hood is used and the position of the laminar flow hood body needs to be fixed, the motor drives the driving disc to rotate to promote the toothed plate piece to move and drive the gear nut to rotate, and when the gear nut rotates, the limiting piece is promoted to move downwards and limit the movable base, so that the possibility of device position movement is reduced; therefore, the position of the device is more convenient to fix.

Description

Technical Field

[0001] The utility model relates to the technical field of laminar flow hoods, in particular to a mobile laminar flow hood. Background Art

[0002] The laminar flow hood forms a uniform flow layer after the air passes through the high-efficiency filter at a certain wind speed, so that the clean air flows vertically in one direction, thus ensuring that the shielding area meets the high cleanliness requirements of the process.

[0003] The existing patent (Announcement No.: CN218871611U) discloses a mobile laminar flow hood, including a laminar flow box at the top, a support frame and curtains around the support frame. A circle of fixing rods are provided on the inner side of the top and bottom of the support frame, and a circle of grooves with openings facing each other are provided on the upper and lower fixing rods. The cross-sectional shape of the groove is T-shaped. Four universal wheels are provided at the bottom of the support frame to facilitate the operator to move it. However, this technical solution still has shortcomings, as follows:

[0004] When the device is in use, the operator needs to fix its position. At this time, the operator needs to lock the four universal wheels in turn through the locking mechanism, so it is troublesome to fix the position of the device. To this end, we propose a mobile laminar flow hood to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, the utility model aims to provide a mobile laminar flow hood, which can solve the problem that the operator needs to fix the position of the existing device when it is in use. At this time, the operator needs to lock the four universal wheels in turn through the locking mechanism, so it is troublesome to fix the position of the device.

[0007] In order to solve the above technical problems, the utility model provides a movable laminar flow hood, which adopts the following technical scheme: comprising a positioning mechanism, which comprises a laminar flow hood body and a movable base, the movable base is connected to the laminar flow hood body by bolts, a motor is arranged on the top of the movable base, a movable cavity is arranged in the movable base, a driving disk is rotatably arranged in the movable cavity, a rotating shaft of the motor is inserted into the movable cavity and fixedly connected to the driving disk, toothed plates are movably inserted on both sides of the movable base, one end of the toothed plate is inserted into the movable cavity and slidably cooperates with the inner wall of the driving disk, an assembly groove is arranged on the top of the movable base, a gear nut is rotatably arranged in the assembly groove, a limiting member is movably inserted at the bottom of the movable base, and the upper end of the limiting member passes through the movable base and is threadedly inserted with the inner wall of the gear nut;

[0008] The stabilizing mechanism comprises a foldable plate, wherein the foldable plate is hinged to an end of a tooth plate member away from a driving disk through a pin shaft, and the foldable plate is connected to the tooth plate member through a spring.

[0009] By adopting the above technical solution, the present solution drives the driving disk to rotate through the motor to cause the tooth plate to move and drive the gear nut to rotate. When the gear nut rotates, the limiting member is moved downward and the movable base is limited, thereby reducing the possibility of movement of the device position.

[0010] Optionally, the movable base includes a bottom plate, and four fixed blocks are arranged at the bottom of the bottom plate, the four fixed blocks are grouped into two and are symmetrical about the bottom plate, a rotating shaft is rotatably arranged between every two of the fixed blocks, and rollers are fixedly arranged at both ends of the rotating shaft.

[0011] By adopting the above technical solution, the present solution facilitates the assembly of the rotating shaft through the fixed block, and facilitates the operator to move the device through the roller.

[0012] Optionally, the driving disk includes a circular disk and two inclined grooves, the circular disk is rotatably disposed in the movable cavity, and the two inclined grooves are symmetrical about the circular disk.

[0013] By adopting the above technical solution, when the motor drives the disc to rotate, the tooth plate moves along the inner wall of the inclined groove, and when the tooth plate moves, it is easy to drive the gear nut to rotate.

[0014] Optionally, the tooth plate member includes a movable plate, both sides of which are fixedly provided with teeth, the teeth are engaged with a gear nut, and one end of the movable plate facing the driving disk is fixedly connected to a cylinder, the upper end of the cylinder enters and exits the inclined groove and slides with the inner wall of the inclined groove.

[0015] By adopting the above technical solution, in this solution, when the driving disc rotates, the cylinder moves along the inner wall of the inclined groove and drives the movable plate and the teeth to move synchronously, and at this time, the gear nut is easily driven to rotate through the teeth.

[0016] Optionally, the number of the assembly slots is four, two of the four assembly slots form a group and are symmetrical about the bottom plate, and the lower ends of the assembly slots are connected to the active cavity.

[0017] By adopting the above technical solution, the present solution facilitates the assembly of the gear nut through the assembly groove, and the lower end of the assembly groove is connected with the movable cavity so that the gear nut can be driven to rotate when the tooth plate moves.

[0018] Optionally, the number of the gear nuts corresponds to the number of the assembly grooves, the four gear nuts are respectively meshed with teeth on both sides of the two movable plates, and the internal threads of two adjacent gear nuts are in opposite directions.

[0019] By adopting the above technical solution, in this solution, when the movable plate moves, the teeth on both sides thereof drive the two gear nuts to rotate simultaneously.

[0020] Optionally, the limiting member includes two screws and a cross plate, the two screws pass through the bottom plate and are respectively inserted into the inner walls of the two gear nuts, the lower ends of the two screws are connected by the cross plate, an arc-shaped rubber plate is fixedly provided at the bottom of the cross plate, and when the screw drives the cross plate to move downward, the arc-shaped rubber plate abuts against the outer wall of the rotating shaft.

[0021] By adopting the above technical solution, when the gear nut rotates, the two screws are limited by the cross plate, thereby prompting the two screws to drive the cross plate and the arc rubber plate to move. When the arc rubber plate moves downward, it conflicts with the rotating shaft, thereby reducing the possibility of the roller driving the rotating shaft to rotate.

[0022] Optionally, the foldable plate is T-shaped, and a groove is provided at one end of the foldable plate facing the tooth plate member, one end of the spring is fixedly connected to the inner wall of the groove, and the other end of the spring is fixedly connected to the tooth plate member.

[0023] By adopting the above technical solution, the present solution facilitates the assembly of the spring through the groove. When the foldable plate is separated from the movable base, the foldable plate is pushed downward by the spring. At this time, the movable base is supported by the cooperation of the foldable plate and the toothed plate, thereby increasing the stability of the device.

[0024] In summary, the utility model includes at least one of the following beneficial effects: 1. When the position of the laminar flow hood body needs to be fixed, the motor drives the driving disk to rotate to cause the tooth plate to move and drive the gear nut to rotate. When the gear nut rotates, the limiting member moves down and limits the movable base, thereby reducing the possibility of movement of the device position, so that the position of the device is more convenient to fix;

[0025] 2. As the tooth plate moves, the foldable plate is separated from the movable base. At this time, the foldable plate is pushed by the spring to deflect and form an L-shaped structure with the tooth plate. At this time, the lower end of the foldable plate contacts the ground, thereby increasing the stability of the device through the cooperation between the tooth plate and the foldable plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0028] Figure 2 It is a partial three-dimensional structural cross-sectional view of the utility model;

[0029] Figure 3 It is a partial three-dimensional expanded structural cross-sectional view of the utility model;

[0030] Figure 4 It is a partial three-dimensional structural cross-sectional view of the foldable board of the utility model when it is unfolded.

[0031] Description of reference numerals: 100, positioning mechanism; 101, laminar flow hood body; 102, movable base; 102a, bottom plate; 102b, fixed block; 102c, rotating shaft; 102d, roller; 103, motor; 104, movable chamber; 105, driving disk; 105a, disk; 105b, inclined groove; 106, tooth plate member; 106a, movable plate; 106b, teeth; 106c, cylinder; 107, assembly groove; 108, gear nut; 109, limit member; 109a, screw rod; 109b, horizontal plate; 109c, arc-shaped rubber plate;

[0032] 200, stabilizing mechanism; 201, foldable plate; 201a, groove; 202, pin; 203, spring. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-4 The utility model is described in further detail.

[0034] Embodiment 1, refer to Figure 1-4 In this embodiment, in order to solve the problem that the operator needs to fix the position of the existing device when it is in use, the operator needs to lock the four universal wheels in turn through the locking mechanism, so it is troublesome to fix the position of the device. The utility model discloses a mobile laminar flow hood.

[0035] It includes a positioning mechanism 100, which includes a laminar flow hood body 101 and a movable base 102. The laminar flow hood body 101 is a prior art, which is mainly composed of a box body, a fan, a high-efficiency air filter, a damping layer, lamps, etc. The laminar flow hood body 101 draws air from the clean room, and then uses a fan installed in the top pressurized cabin to vertically pass through the operating area through HEPA filtration to provide one-way flow air for key areas, and the exhaust gas is discharged from the bottom and returned to the clean room area.

[0036] The movable base 102 is connected to the laminar flow hood body 101 by bolts. The movable base 102 includes a bottom plate 102a. Four fixed blocks 102b are arranged at the bottom of the bottom plate 102a. The four fixed blocks 102b are grouped in two and are symmetrical about the bottom plate 102a. A rotating shaft 102c is rotatably arranged between every two fixed blocks 102b. Rollers 102d are fixedly arranged at both ends of the rotating shaft 102c. The fixed blocks 102b are used to facilitate the assembly of the rotating shaft 102c, and the rollers 102d are used to facilitate the operator to move the device.

[0037] A motor 103 is arranged on the top of the movable base 102, and an active cavity 104 is opened in the movable base 102. A driving disk 105 is rotatably arranged in the active cavity 104. The driving disk 105 includes a disc 105a and two inclined grooves 105b. The disc 105a is rotatably arranged in the active cavity 104, and the two inclined grooves 105b are symmetrical about the disc 105a. The driving disk 105 is assembled in the active cavity 104 and rotates in the active cavity 104; the rotating shaft of the motor 103 is inserted into the active cavity 104 and fixedly connected to the driving disk 105, so that the driving disk 105 can be driven to rotate by the motor 103.

[0038] A toothed plate 106 is movably connected to both sides of the movable base 102 . One end of the toothed plate 106 is inserted into the movable cavity 104 and slidably cooperates with the inner wall of the driving disk 105 . When the driving disk 105 rotates, the toothed plate 106 moves along the inner wall of the movable cavity 104 .

[0039] A mounting groove 107 is provided on the top of the movable base 102, and a gear nut 108 is rotatably arranged in the mounting groove 107, and the gear nut 108 is vertically assembled in the mounting groove 107; there are four mounting grooves 107, and two of the four mounting grooves 107 form a group and are symmetrical about the base plate 102a. The lower end of the mounting groove 107 is connected with the movable cavity 104, so that the gear nut 108 can be easily assembled through the mounting groove 107, and the lower end of the mounting groove 107 is connected with the movable cavity 104, so that the gear nut 108 can be driven to rotate when the tooth plate part 106 moves.

[0040] The bottom of the movable base 102 is movably connected to a limit piece 109, the upper end of the limit piece 109 passes through the movable base 102 and is threadedly connected to the inner wall of the gear nut 108, the toothed plate part 106 includes a movable plate 106a, both sides of the movable plate 106a are fixedly provided with teeth 106b, the teeth 106b are engaged with the gear nut 108, and the movable plate 106a is fixedly connected to one end of the driving disk 105 with a cylinder 106c, the upper end of the cylinder 106c enters and exits the inclined groove 105b, and slides with the inner wall of the inclined groove 105b. When the driving disk 105 rotates, the cylinder 106c moves along the inner wall of the inclined groove 105b and drives the movable plate 106a and the teeth 106b to move synchronously. At this time, the teeth 106b facilitate the rotation of the gear nut 108 and prompt the limit piece 109 to move.

[0041] The stabilizing mechanism 200 includes a foldable plate 201, which is hinged to the end of the tooth plate 106 away from the driving disk 105 through a pin shaft 202. The foldable plate 201 is connected to the tooth plate 106 through a spring 203. The foldable plate 201 is separated from the movable base 102. At this time, the spring 203 pushes the foldable plate 201 to deflect and form an L-shaped structure with the tooth plate 106. At this time, the lower end of the foldable plate 201 contacts the ground.

[0042] The specific working principle is: first, the laminar flow hood body 101 is fixed on the movable base 102, so that the operator can move the laminar flow hood body 101 easily; when the position of the laminar flow hood body 101 needs to be fixed, the motor 103 drives the driving disk 105 to rotate, so that the tooth plate 106 moves and drives the gear nut 108 to rotate; when the gear nut 108 rotates, the limiting member 109 moves downward and limits the movable base 102, thereby reducing the possibility of movement of the device position.

[0043] Example 2, refer to Figure 2-3 In this embodiment, in order to solve the problem that some existing devices are provided with rollers at the bottom, so that the operator's position is easily offset when using, based on the same concept as the above-mentioned embodiment 1, the mobile laminar flow hood also includes:

[0044] The number of gear nuts 108 corresponds to the number of assembly grooves 107. The four gear nuts 108 are respectively engaged with the teeth 106b on both sides of the two movable plates 106a, and the internal threads of two adjacent gear nuts 108 are in opposite directions. When the movable plate 106a moves, the teeth 106b on both sides thereof simultaneously drive the two gear nuts 108 to rotate.

[0045] The limiting member 109 includes two screw rods 109a and a cross plate 109b. The two screw rods 109a pass through the bottom plate 102a and are respectively inserted into the inner walls of the two gear nuts 108. The lower ends of the two screw rods 109a are connected by the cross plate 109b. An arc-shaped rubber plate 109c is fixedly provided at the bottom of the cross plate 109b. When the screw rods 109a drive the cross plate 109b to move downward, the arc-shaped rubber plate 109c abuts against the outer wall of the rotating shaft 102c. When the gear nut 108 rotates, the two screw rods 109a are limited by the cross plate 109b, thereby prompting the two screw rods 109a to drive the cross plate 109b and the arc-shaped rubber plate 109c to move. When the arc-shaped rubber plate 109c moves downward, it abuts against the rotating shaft 102c. When the arc-shaped rubber plate 109c moves upward, it separates from the rotating shaft 102c. At this time, the operator can push the device to move.

[0046] The specific working principle is: when the movable plate 106a moves, the teeth 106b on both sides thereof drive the two gear nuts 108 to rotate at the same time. When the gear nuts 108 rotate, the two screw rods 109a are limited by the cross plate 109b, thereby prompting the two screw rods 109a to drive the cross plate 109b and the arc rubber plate 109c to move. When the arc rubber plate 109c moves downward, it conflicts with the rotating shaft 102c, thereby reducing the possibility of the roller 102d driving the rotating shaft 102c to rotate, thereby reducing the possibility of the device position being offset.

[0047] Example 3, refer to Figure 4 In this embodiment, in order to solve the problem that some existing devices lack stabilizing components and thus the device position is not stable after being fixed, based on the same concept as the above-mentioned embodiment 1, the mobile laminar flow hood also includes:

[0048] The foldable plate 201 is T-shaped, and a groove 201a is provided at one end of the foldable plate 201 facing the tooth plate part 106. One end of the spring 203 is fixedly connected to the inner wall of the groove 201a, and the other end of the spring 203 is fixedly connected to the tooth plate part 106. The groove 201a facilitates the assembly of the spring 203. When the foldable plate 201 is separated from the movable base 102, the spring 203 pushes the foldable plate 201 to deflect downward. At this time, the foldable plate 201 cooperates with the tooth plate part 106 to support the movable base 102, thereby increasing the stability of the device.

[0049] The specific working principle is: as the tooth plate part 106 moves, the foldable plate 201 is separated from the movable base 102, and the spring 203 pushes the foldable plate 201 to deflect and form an L-shaped structure with the tooth plate part 106. At this time, the lower end of the foldable plate 201 contacts the ground, thereby increasing the stability of the device through the cooperation between the tooth plate part 106 and the foldable plate 201, and at the same time, the position of the device is secondarily fixed through the contact between the foldable plate 201 and the ground.

[0050] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A mobile laminar flow hood, characterized in that: include, A positioning mechanism (100) comprises a laminar flow hood body (101) and a movable base (102), wherein the movable base (102) and the laminar flow hood body (101) are connected by bolts, a motor (103) is arranged on the top of the movable base (102), an active cavity (104) is provided in the movable base (102), a drive disk (105) is rotatably arranged in the active cavity (104), a rotating shaft of the motor (103) is inserted into the active cavity (104) and is fixedly connected to the drive disk (105), and the movable base (103) is provided with a plurality of movable chambers (104) and a plurality of movable chambers (104) and a plurality of movable chambers (104) are provided in the movable chamber (104). 02) are movably connected with toothed plate members (106), one end of the toothed plate member (106) is inserted into the movable cavity (104) and slidably cooperates with the inner wall of the driving disk (105), a mounting groove (107) is provided on the top of the movable base (102), a gear nut (108) is rotatably arranged in the mounting groove (107), a limit member (109) is movably connected with the bottom of the movable base (102), the upper end of the limit member (109) passes through the movable base (102) and is threadedly connected with the inner wall of the gear nut (108); The stabilizing mechanism (200) comprises a foldable plate (201), wherein the foldable plate (201) is hingedly connected to an end of a tooth plate member (106) away from a driving disk (105) via a pin shaft (202), and the foldable plate (201) is connected to the tooth plate member (106) via a spring (203).

2. The mobile laminar flow hood according to claim 1, characterized in that: The movable base (102) comprises a bottom plate (102a), and four fixed blocks (102b) are arranged at the bottom of the bottom plate (102a). The four fixed blocks (102b) form a group of two and are symmetrical with respect to the bottom plate (102a). A rotating shaft (102c) is rotatably arranged between every two of the fixed blocks (102b), and rollers (102d) are fixedly arranged at both ends of the rotating shaft (102c).

3. The mobile laminar flow hood according to claim 1, characterized in that: The driving disk (105) comprises a circular disk (105a) and two inclined grooves (105b); the circular disk (105a) is rotatably arranged in the movable cavity (104); and the two inclined grooves (105b) are symmetrical with respect to the circular disk (105a).

4. The mobile laminar flow hood according to claim 3, characterized in that: The toothed plate member (106) comprises a movable plate (106a), both sides of which are fixedly provided with teeth (106b), the teeth (106b) meshing with the gear nut (108), and one end of the movable plate (106a) facing the driving disk (105) is fixedly connected with a cylinder (106c), the upper end of the cylinder (106c) enters and exits the inclined groove (105b), and slidably cooperates with the inner wall of the inclined groove (105b).

5. The mobile laminar flow hood according to claim 1, characterized in that: The number of the assembly grooves (107) is four, two of the four assembly grooves (107) form a group and are symmetrical about the bottom plate (102a), and the lower ends of the assembly grooves (107) are in communication with the active cavity (104).

6. The mobile laminar flow hood according to claim 4, characterized in that: The number of the gear nuts (108) corresponds to the number of the assembly grooves (107), the four gear nuts (108) are respectively meshed with the teeth (106b) on both sides of the two movable plates (106a), and the internal threads of two adjacent gear nuts (108) are in opposite directions.

7. The mobile laminar flow hood according to claim 2, characterized in that: The limiting member (109) comprises two screw rods (109a) and a transverse plate (109b). The two screw rods (109a) pass through the bottom plate (102a) and are respectively inserted into the inner walls of the two gear nuts (108). The lower ends of the two screw rods (109a) are connected via the transverse plate (109b). An arc-shaped rubber plate (109c) is fixedly provided at the bottom of the transverse plate (109b). When the screw rods (109a) drive the transverse plate (109b) to move downward, the arc-shaped rubber plate (109c) abuts against the outer wall of the rotating shaft (102c).

8. The mobile laminar flow hood according to claim 1, characterized in that: The foldable plate (201) is in a T-shape, and a groove (201a) is provided at one end of the foldable plate (201) facing the tooth plate member (106), one end of the spring (203) is fixedly connected to the inner wall of the groove (201a), and the other end of the spring (203) is fixedly connected to the tooth plate member (106).

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