Gas flowmeter for laboratory

Abstract

The utility model discloses a gas flowmeter for a laboratory, and relates to the technical field of stable structures of gas flowmeters. The gas flow meter for the laboratory comprises a gas flow meter body and a transverse plate, a base is arranged under the transverse plate, stabilizing mechanisms are arranged on the surfaces of the transverse plate and the base, and fixing mechanisms are arranged at the bottom and on one side of the base. According to the gas flow meter fixing device, the base is fixed to the top of the workbench through the fixing mechanism, the two sides of the gas flow meter body can be limited under the action of the stabilizing mechanism, and therefore the gas flow meter body is fixed to the top of the transverse plate; therefore, the gas flow meter body and the top of the workbench can be fixed, the stability of the gas flow meter body is guaranteed, the situation that measurement is affected by shaking of the gas flow meter body due to accidental touch of the gas flow meter body is prevented, and the structure can guarantee the measurement accuracy of the gas flow meter body.

Description

Technical Field

[0001] The utility model relates to the technical field of stable structures of gas flow meters, in particular to a gas flow meter for laboratories. Background Art

[0002] Gas flow meter is a commonly used instrument, widely used in medical, chemical, biological, pharmaceutical, petroleum and other industries. It can be used to measure gas flow, temperature, pressure, density and other parameters, helping us to accurately control the gas flow state. When using a gas flow meter in the laboratory, the gas flow meter is placed on the surface of the workbench for testing.

[0003] When the gas flow meter in the laboratory is operating on the workbench surface, the relevant personnel often accidentally touch the gas flow meter. The relevant personnel accidentally touch the gas flow meter during the experiment, causing the gas flow meter to vibrate. The vibration interference may affect the measurement of the gas flow meter, resulting in errors in the detection data of the gas flow meter, thereby affecting the accuracy of the gas flow meter detection. Improvements should be made to this problem.

[0004] For this purpose, a gas flow meter for laboratory use is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems mentioned in the above background technology, and provide a gas flow meter for laboratory use.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A gas flow meter for laboratory use comprises a gas flow meter body and a transverse plate, wherein a base is provided directly below the transverse plate, and surfaces of the transverse plate and the base are provided with a stabilizing mechanism for fixing the gas flow meter body to the top of the transverse plate, and the stabilizing mechanism is used to maintain the stability of the gas flow meter body, and the bottom and one side of the base are provided with a fixing mechanism for fixing the gas flow meter body to the top of a workbench.

[0008] Furthermore, the stabilizing mechanism includes a limit block and an elastic telescopic rod, a limit block is slidably provided on the top of the horizontal plate, an elastic telescopic rod is fixedly provided on the opposite surfaces of the horizontal plate and the base, a horizontal rack is fixedly provided on the side of the limit block, a rotating shaft is rotatably provided on the side of the horizontal plate, a first gear and a second gear are respectively fixedly sleeved on the surface of the rotating shaft, and the first gear is meshed with the horizontal rack, and the second gear is meshed with the longitudinal rack.

[0009] Furthermore, there are two groups of limit blocks, and the two groups of limit blocks are arranged correspondingly.

[0010] Furthermore, there are four groups of elastic telescopic rods, and the telescopic ends of the four groups of elastic telescopic rods are respectively fixedly connected to the four corners of the bottom of the cross plate.

[0011] Furthermore, the fixing mechanism includes a movable groove, a movable groove is opened at the bottom of the base, a bidirectional threaded rod is rotatably provided on the inner wall of the movable groove, and one end of the bidirectional threaded rod passes through the surface of the base, and a knob is fixedly connected to this end of the bidirectional threaded rod, and a movable block is threadedly connected to the surface of the bidirectional threaded rod, and the movable block is slidably arranged with the inner wall of the movable groove, and a clamping plate is fixedly connected to the bottom of the movable block.

[0012] Furthermore, the movable block and the clamping plates are provided in two groups, and the two groups of clamping plates are arranged in an L shape.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The utility model fixes the base to the top of the workbench through a fixing mechanism. At this time, the gas flow meter body is placed on the top of the horizontal plate. The gas flow meter body has a certain weight. Under the action of its own gravity, the gas flow meter body exerts pressure on the top of the horizontal plate, thereby triggering the stabilization mechanism. Under the action of the stabilization mechanism, the two sides of the gas flow meter body can be limited, so that the gas flow meter body is fixed to the top of the horizontal plate. The operation is simple. Since the base is fixed to the top of the workbench, the gas flow meter body can be fixed to the top of the workbench, thereby ensuring the stability of the gas flow meter body, thereby preventing the gas flow meter body from being accidentally touched and causing the gas flow meter body to shake and affect the measurement. This structure can ensure the accuracy of the gas flow meter body during measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a partial orthogonal cutaway schematic diagram of the utility model;

[0017] Figure 3 It is a partial side cutaway schematic diagram of the utility model;

[0018] Figure 4 It is a schematic diagram of an enlarged view of part A of the utility model;

[0019] Figure numerals: 1. Gas flow meter body; 2. Horizontal plate; 3. Base; 4. Stabilizing mechanism; 401. Limit block; 402. Horizontal rack; 403. Rotating shaft; 404. First gear; 405. Second gear; 406. Longitudinal rack; 407. Elastic telescopic rod; 5. Fixing mechanism; 501. Movable groove; 502. Bidirectional threaded rod; 503. Knob; 504. Movable block; 505. Clamping plate. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] like Figures 1 to 4As shown, a laboratory gas flow meter includes a gas flow meter body 1 and a horizontal plate 2, a base 3 is provided directly below the horizontal plate 2, and the surfaces of the horizontal plate 2 and the base 3 are provided with a stabilizing mechanism 4 for fixing the gas flow meter body 1 to the top of the horizontal plate 2, and the stabilizing mechanism 4 is used to maintain the stability of the gas flow meter body 1, and the bottom and one side of the base 3 are provided with a fixing mechanism 5 for fixing the gas flow meter body 1 to the top of the workbench; specifically, firstly, the base 3 is fixed to the top of the workbench by the fixing mechanism 5, and at this time, the gas flow meter body 1 is placed on the top of the horizontal plate 2, and the gas flow meter body 1 has a certain The weight of the gas flow meter body 1 applies pressure to the top of the horizontal plate 2 under the action of its own gravity, thereby triggering the stabilizing mechanism 4. Under the action of the stabilizing mechanism 4, the two sides of the gas flow meter body 1 can be limited, so that the gas flow meter body 1 is fixed to the top of the horizontal plate 2. The operation is simple. Since the base 3 is fixed to the top of the workbench, the gas flow meter body 1 can be fixed to the top of the workbench, thereby ensuring the stability of the gas flow meter body 1, and further preventing the gas flow meter body 1 from being accidentally touched and causing the gas flow meter body 1 to shake and affect the measurement. This structure can ensure the accuracy of the gas flow meter body 1 during measurement.

[0025] like Figures 2 to 4 As shown, the stabilizing mechanism 4 includes a limit block 401 and an elastic telescopic rod 407, the top of the horizontal plate 2 is slidably provided with a limit block 401, the opposite surfaces of the horizontal plate 2 and the base 3 are fixedly provided with an elastic telescopic rod 407, the side of the limit block 401 is fixedly provided with a horizontal rack 402, the side of the horizontal plate 2 is rotatably provided with a rotating shaft 403, the surface of the rotating shaft 403 is respectively fixedly provided with a first gear 404 and a second gear 405, and the first gear 404 is meshed with the horizontal rack 402, and the second gear 405 is meshed with the longitudinal rack 406; specifically, when the gas flow meter body 1 is placed on the top of the horizontal plate 2 When the gas flow meter body 1 is moved downward, pressure is applied to the top of the horizontal plate 2 under the action of gravity, so that the horizontal plate 2 moves downward, and then the first gear 404 and the second gear 405 move downward. When the second gear 405 moves downward, the second gear 405 rotates under the action of the longitudinal rack 406, so that the rotating shaft 403 rotates, and then the first gear 404 rotates. When the first gear 404 rotates, the horizontal rack 402 can move horizontally, so that the limit block 401 moves horizontally. When the horizontal plate 2 moves downward, it can squeeze the elastic telescopic rod 407, so that the telescopic end of the elastic telescopic rod 407 contracts.

[0026] like Figure 1 , Figure 2As shown, there are two groups of limit blocks 401, and the two groups of limit blocks 401 are arranged correspondingly; specifically, the two groups of limit blocks 401 move toward the middle at the same time, and the opposite surfaces of the two groups of limit blocks 401 are respectively fitted with the two side surfaces of the gas flow meter body 1, thereby realizing the limitation of the gas flow meter body 1.

[0027] like Figure 1 , Figure 2 As shown, there are four groups of elastic telescopic rods 407, and the telescopic ends of the four groups of elastic telescopic rods 407 are fixedly connected to the four corners of the bottom of the cross plate 2 respectively; specifically, the gas flow meter body 1 is taken vertically upward, at this time, the gravity borne by the cross plate 2 disappears, and under the action of the four groups of elastic telescopic rods 407, the cross plate 2 is reset, thereby resetting the two groups of limit blocks 401.

[0028] like Figure 2 , Figure 3 As shown, the fixing mechanism 5 includes a movable groove 501, and the bottom of the base 3 is provided with a movable groove 501, the inner wall of the movable groove 501 is rotatably provided with a bidirectional threaded rod 502, and one end of the bidirectional threaded rod 502 penetrates the surface of the base 3, and the end of the bidirectional threaded rod 502 is fixedly connected with a knob 503, and the surface of the bidirectional threaded rod 502 is threadedly connected with a movable block 504, and the movable block 504 is slidably arranged with the inner wall of the movable groove 501, and the bottom of the movable block 504 is fixedly connected with a clamping plate 505; specifically, rotating the knob 503 causes the bidirectional threaded rod 502 to rotate, thereby causing the movable block 504 to slide, and then causing the clamping plate 505 to move.

[0029] like Figure 2 , Figure 3 As shown, the movable blocks 504 and the clamping plates 505 are each provided with two groups, and the two groups of clamping plates 505 are both L-shaped; specifically, the bidirectional threaded rod 502 rotates so that the two groups of movable blocks 504 move toward the middle or to both sides at the same time, thereby realizing the separation or approach of the two groups of clamping plates 505, and the opposite surfaces of the two groups of clamping plates 505 are in conflict with the two sides of the workbench, thereby realizing the fixation of the base 3 and the workbench.

[0030] In summary: first, the base 3 is fixed to the top of the workbench by the fixing mechanism 5. At this time, the gas flow meter body 1 is placed on the top of the horizontal plate 2. The gas flow meter body 1 has a certain weight. Under the action of its own gravity, the gas flow meter body 1 applies pressure to the top of the horizontal plate 2, thereby triggering the stabilizing mechanism 4. Under the action of the stabilizing mechanism 4, the two sides of the gas flow meter body 1 can be limited, so that the gas flow meter body 1 is fixed to the top of the horizontal plate 2. The operation is simple. Therefore, the base 3 is fixed to the top of the workbench, so that the gas flow meter body 1 can be fixed to the top of the workbench, thereby ensuring the stability of the gas flow meter body 1, and then preventing the gas flow meter body 1 from being accidentally touched and causing the gas flow meter body 1 to shake and affect the measurement. This structure can ensure the accuracy of the gas flow meter body 1 during measurement.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A laboratory gas flow meter, characterized in that: The invention comprises a gas flow meter body (1) and a transverse plate (2), wherein a base (3) is provided directly below the transverse plate (2), and the surfaces of the transverse plate (2) and the base (3) are provided with a stabilizing mechanism (4) for fixing the gas flow meter body (1) to the top of the transverse plate (2), and the stabilizing mechanism (4) is used to maintain the stability of the gas flow meter body (1), and a fixing mechanism (5) for fixing the gas flow meter body (1) to the top of a workbench is provided at the bottom and one side of the base (3).

2. A laboratory gas flow meter according to claim 1, characterized in that: The stabilizing mechanism (4) comprises a limit block (401) and an elastic telescopic rod (407); the limit block (401) is slidably provided at the top of the transverse plate (2); the elastic telescopic rod (407) is fixedly provided on the opposite surfaces of the transverse plate (2) and the base (3); a transverse rack (402) is fixedly provided on the side of the limit block (401); a rotating shaft (403) is rotatably provided on the side of the transverse plate (2); a first gear (404) and a second gear (405) are respectively fixedly sleeved on the surface of the rotating shaft (403); the first gear (404) is meshed with the transverse rack (402); and the second gear (405) is meshed with the longitudinal rack (406).

3. A laboratory gas flow meter according to claim 2, characterized in that: The limit blocks (401) are provided in two groups, and the two groups of limit blocks (401) are arranged correspondingly.

4. A laboratory gas flow meter according to claim 2, characterized in that: The elastic telescopic rods (407) are provided in four groups in total, and the telescopic ends of the four groups of elastic telescopic rods (407) are respectively fixedly connected to the four corners of the bottom of the transverse plate (2).

5. A laboratory gas flow meter according to claim 1, characterized in that: The fixing mechanism (5) comprises a movable groove (501), the bottom of the base (3) is provided with the movable groove (501), the inner wall of the movable groove (501) is rotatably provided with a bidirectional threaded rod (502), and one end of the bidirectional threaded rod (502) penetrates the surface of the base (3), the end of the bidirectional threaded rod (502) is fixedly connected with a knob (503), the surface of the bidirectional threaded rod (502) is threadedly connected with a movable block (504), and the movable block (504) and the inner wall of the movable groove (501) are slidably arranged, and the bottom of the movable block (504) is fixedly connected with a clamping plate (505).

6. A laboratory gas flow meter according to claim 5, characterized in that: The movable block (504) and the clamping plate (505) are provided in two groups, and the two groups of clamping plates (505) are both arranged in an L shape.

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