Sealing structure for mounting gas mass flow controller

Abstract

The utility model relates to the technical field of gas mass flow controllers, and discloses a sealing structure for mounting a gas mass flow controller, which comprises a gas mass flow controller main body and a joint mounted on one side of the gas mass flow controller main body close to the bottom, a sealing assembly is arranged between the connector and the connecting pipe, a bearing assembly is arranged at the bottom of the connecting pipe, and the sealing assembly comprises a connecting disc A fixedly installed on the connecting pipe and a plurality of arc-shaped blocks fixedly installed on the other side of the connecting disc A. A sealing ring is placed in an inner cavity of a sealing groove B; and arc-shaped blocks fixed to the connecting pipes are inserted into inner cavities of the adjacent connecting grooves, and sealing rings are inserted into inner cavities of sealing grooves A, so that the sealing performance of device connection is improved, clamping blocks can be inserted into inner cavities of the adjacent clamping grooves through cooperation of the clamping blocks, springs and vertical rods, and the stability of connection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas mass flow controllers, in particular to a sealing structure for installing a gas mass flow controller. Background Art

[0002] Gas mass flow controller / gas mass flow meter is used to precisely measure and control the mass flow of gas. It has important and extensive applications in scientific research and production in many fields. Gas mass flow controller consists of mass flow sensor, diverter channel, flow control regulating valve and amplification control circuit and other components, and needs to be connected when in use.

[0003] When the gas mass flow controller is connected to the connecting pipe, in order to ensure a sealed connection, raw tape needs to be wrapped around the joint. The wrapping of raw tape can easily make the connector thicker, causing inconvenience in subsequent connections and reducing the connection efficiency of the device.

[0004] Therefore, we propose a sealing structure for installing a gas mass flow controller to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a sealing structure for installing a gas mass flow controller to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing structure for installing a gas mass flow controller, comprising a gas mass flow controller body and a joint installed on one side of the gas mass flow controller body near the bottom, a connecting pipe is provided on one side of the joint, a sealing component is provided between the joint and the connecting pipe, and a supporting component is provided at the bottom of the connecting pipe;

[0007] The sealing assembly includes a connecting disk A fixedly mounted on the connecting pipe and a plurality of arc blocks fixedly mounted on the other side of the connecting disk A. A connecting disk B is fixedly mounted on the end of the joint. A plurality of connecting grooves are provided on one side of the connecting disk B. The arc blocks are movably inserted into the inner cavities of adjacent connecting grooves. A sealing groove A and a sealing groove B are respectively provided on the opposite sides of the connecting disk B and the connecting disk A. The inner cavities of the sealing grooves A and B are jointly provided with sealing rings.

[0008] Preferably, a plurality of the arc blocks are provided with a slot on the side away from each other, an opening is provided on the inner cavity of a plurality of connecting grooves on the side away from each other, a connecting plate is fixedly installed in the inner cavity of the opening, a vertical rod is movably passed through the connecting plate, a card block is fixedly installed at the opposite end of the vertical rod, and the card blocks are movably inserted in the inner cavity of adjacent card slots, a cylinder is fixedly installed at the end away from each other, and a handle is fixedly installed at the end away from each other of the cylinder.

[0009] Preferably, a spring is movably sleeved on the outer circumference of the vertical rod, and two ends of the spring are respectively fixedly connected to the adjacent cylinder and the adjacent connecting plate.

[0010] Preferably, the supporting assembly includes a load-bearing plate fixedly installed on one side of the gas mass flow controller body near the bottom and a fixed plate fixedly installed on the top of the load-bearing plate near one side, a threaded rod movably penetrates one side of the fixed plate, the end of the threaded rod is rotatably connected to one side of the gas mass flow controller body, the outer peripheral thread of the threaded rod is connected to a threaded sleeve, the top of the threaded sleeve is hinged with a hinged rod, the top of the hinged rod is fixedly hinged with a movable rod, the other end of the movable rod is movably connected to the gas mass flow controller body, and one end of the movable rod is hinged to a supporting block.

[0011] Preferably, telescopic columns are fixedly installed on the bottom of the supporting block near the front and rear sides, and the bottom ends of the telescopic columns are fixedly connected to the gas mass flow controller body.

[0012] Preferably, a knob is fixedly mounted on one end of the threaded rod, and a plurality of anti-skid pads are fixedly mounted on the outer periphery of the knob, and the plurality of anti-skid pads are arranged in a circular array with the center of a circle on one side of the knob as the center.

[0013] Preferably, a limit block is fixedly installed at the bottom of the threaded sleeve, one side of the limit block movably penetrates the limit rod, and both ends of the limit rod are fixedly connected to the adjacent gas mass flow controller body and the adjacent fixed plate respectively.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Place the sealing ring in the inner cavity of the sealing groove B, and insert the arc block fixed on the connecting pipe into the inner cavity of the adjacent connecting groove, and insert the sealing ring into the inner cavity of the sealing groove A to improve the sealing performance of the device connection. By setting the card block, spring and vertical rod, the card block can be inserted into the inner cavity of the adjacent card slot to improve the stability of the connection.

[0016] 2. By providing a supporting block, the connecting pipe can be supported, which can prevent the connecting pipe from sagging due to weight when connected for a long time, thereby affecting the sealing between the connecting pipe and the joint, thereby improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is an exploded view of the sealing component of the utility model;

[0019] Figure 3 This is an exploded view of the sealing component of the utility model from another perspective;

[0020] Figure 4 This is a cross-sectional view of the connecting pipe and the joint of the utility model;

[0021] Figure 5 For the utility model Figure 1 Enlarged view of point A in the middle;

[0022] Figure 6 For the utility model Figure 4 Enlarged view of point B in the middle;

[0023] Figure 7 For the utility model Figure 6 Enlarged view of center C.

[0024] In the figure: 1. Gas mass flow controller body; 2. Joint; 3. Connecting pipe; 4. Sealing assembly; 41. Connecting plate A; 42. Arc block; 421. Slot; 43. Connecting plate B; 44. Connecting groove; 441. Opening; 442. Connecting plate; 443. Vertical rod; 4431. Spring; 444. Cylinder; 445. Handle; 446. Block; 45. Sealing groove A; 46. Sealing groove B; 47. Sealing ring; 5. Supporting assembly; 51. Load-bearing plate; 52. Fixed plate; 53. Threaded rod; 531. Knob; 54. Threaded sleeve; 541. Limiting block; 542. Limiting rod; 55. Articulated rod; 56. Movable rod; 57. Supporting block; 571. Telescopic column. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1: Please refer to Figure 1-7 A sealing structure for installing a gas mass flow controller comprises a gas mass flow controller body 1 and a joint 2 installed on one side of the gas mass flow controller body 1 near the bottom, a connecting pipe 3 is arranged on one side of the joint 2, a sealing component 4 is arranged between the joint 2 and the connecting pipe 3, and a supporting component 5 is arranged at the bottom of the connecting pipe 3;

[0027] The sealing assembly 4 includes a connecting plate A41 fixedly mounted on the connecting pipe 3 and a plurality of arc blocks 42 fixedly mounted on the other side of the connecting plate A41. The top of the arc block 42 is arc-shaped. A connecting plate B43 is fixedly mounted on the end of the joint 2. A plurality of connecting grooves 44 are provided on one side of the connecting plate B43. The arc block 42 is movably inserted in the inner cavity of an adjacent connecting groove 44. A sealing groove A45 and a sealing groove B46 are respectively provided on the opposite sides of the connecting plate B43 and the connecting plate A41. A sealing ring 47 is commonly provided in the inner cavity of the sealing groove A45 and the sealing groove B46. The sealing ring 47 is placed in the inner cavity of the sealing groove B46. The sealing performance of the device connection is improved by inserting the arc block 42 fixed on the connecting pipe 3 into the inner cavity of the adjacent connecting groove 44, and inserting the sealing ring 47 into the inner cavity of the sealing groove A45.

[0028] A plurality of arc blocks 42 are provided with a slot 421 on the side away from each other, an opening 441 is provided on the side away from the inner cavity of a plurality of connecting grooves 44, a connecting plate 442 is fixedly installed in the inner cavity of the opening 441, a vertical rod 443 is movably passed through the connecting plate 442, a clamping block 446 is fixedly installed at the opposite end of the vertical rod 443, and the clamping block 446 is movably inserted in the inner cavity of the adjacent slot 421, a cylinder 444 is fixedly installed at the end away from each other of the vertical rod 443, and a handle 445 is fixedly installed at the end away from each other of the cylinder 444, and the handle 445 is provided to facilitate the staff to separate the joint 2 and the connecting pipe 3 in the future.

[0029] A spring 4431 is movably sleeved on the outer circumference of the vertical rod 443, and the two ends of the spring 4431 are respectively fixedly connected to the adjacent cylinder 444 and the adjacent connecting plate 442. By setting the clamping block 446, the spring 4431 and the vertical rod 443, the clamping block 446 can be inserted into the inner cavity of the adjacent clamping slot 421 to improve the stability of the connection.

[0030] Embodiment 2: This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 and Figure 5The supporting assembly 5 includes a bearing plate 51 fixedly installed at one side of the gas mass flow controller body 1 near the bottom and a fixed plate 52 fixedly installed at the top of the bearing plate 51 near one side. A threaded rod 53 is movably penetrated on one side of the fixed plate 52. A bearing is fixedly installed on the fixed plate 52, and the threaded rod 53 penetrates the inner cavity of the bearing. The end of the threaded rod 53 is rotatably connected to one side of the gas mass flow controller body 1. The outer periphery of the threaded rod 53 is threadedly connected to a threaded sleeve 54. The top of the threaded sleeve 54 is hinged with a hinged rod 55. The top of the hinged rod 55 is fixedly hinged with a movable rod 56. The other end of the movable rod 56 is movably connected to the gas mass flow controller body 1. One end of the movable rod 56 is hinged with a supporting block 57. By setting the supporting block 57, the connecting pipe 3 can be supported, which can prevent the connecting pipe 3 from sagging due to weight when connected for a long time, thereby affecting the sealing between the connecting pipe 3 and the joint 2, thereby improving the use effect of the device.

[0031] Telescopic columns 571 are fixedly installed at the bottom of the supporting block 57 near the front and rear sides, and the bottom ends of the telescopic columns 571 are fixedly connected to the gas mass flow controller body 1. The supporting block 57 can be supported by setting the telescopic columns 571.

[0032] A knob 531 is fixedly installed at one end of the threaded rod 53. The threaded rod 53 can be driven by setting the knob 531, and a plurality of anti-skid pads are fixedly installed on the periphery of the knob 531. The plurality of anti-skid pads are arranged in a circular array with the center of one side of the knob 531 as the center.

[0033] A limit block 541 is fixedly installed at the bottom of the threaded sleeve 54, and one side of the limit block 541 movably penetrates the limit rod 542. The two ends of the limit rod 542 are respectively fixedly connected to the adjacent gas mass flow controller body 1 and the adjacent fixed plate 52. By setting the limit block 541 and the limit rod 542, the threaded sleeve 54 can move smoothly.

[0034] Working principle: When the utility model is in use, the sealing ring 47 is placed in the inner cavity of the sealing groove B46, and the arc block 42 fixed on the connecting pipe 3 is inserted into the inner cavity of the adjacent connecting groove 44, and the sealing ring 47 is inserted into the inner cavity of the sealing groove A45, so as to improve the sealing performance of the device connection, so that the arc block 42 fixed on the connecting plate A41 is respectively inserted into the inner cavity of the adjacent connecting groove 44. Since the arc block 42 is set in an arc shape at the end, when it is fully inserted into the inner cavity of the connecting groove 44, the spring 4431 can make the clamping block 446 stably inserted into the inner cavity of the clamping groove 421, thereby improving To improve the sealing performance of the connection between the connecting pipe 3 and the joint 2, the knob 531 is rotated to rotate the threaded rod 53 fixed on the knob 531, and the threaded sleeve 54 threadedly connected to the threaded rod 53 slides to the left under the limit of the limit block 541 and the limit rod 542. Through the coordinated use of the hinged rod 55 and the movable rod 56, the supporting block 57 can be moved upward under the limit of the two supporting blocks 57, so that the end face of the supporting block 57 fits with the bottom of the connecting pipe 3, which can prevent the connecting pipe 3 from sagging due to weight when connected for a long time, thereby affecting the sealing performance between the connecting pipe 3 and the joint 2, thereby improving the use effect of the device.

[0035] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sealing structure for installing a gas mass flow controller, comprising a gas mass flow controller body (1) and a joint (2) installed on one side of the gas mass flow controller body (1) near the bottom, characterized in that: A connecting pipe (3) is provided on one side of the joint (2), a sealing component (4) is provided between the joint (2) and the connecting pipe (3), and a supporting component (5) is provided at the bottom of the connecting pipe (3); The sealing assembly (4) comprises a connection plate A (41) fixedly mounted on the connection pipe (3) and a plurality of arc blocks (42) fixedly mounted on the other side of the connection plate A (41); a connection plate B (43) is fixedly mounted on the end of the joint (2); a plurality of connection grooves (44) are provided on one side of the connection plate B (43); the arc blocks (42) are movably inserted into the inner cavities of adjacent connection grooves (44); a sealing groove A (45) and a sealing groove B (46) are respectively provided on opposite sides of the connection plate B (43) and the connection plate A (41); and a sealing ring (47) is provided in the inner cavities of the sealing grooves A (45) and B (46).

2. A sealing structure for installing a gas mass flow controller according to claim 1, characterized in that: A plurality of arc blocks (42) are provided with a slot (421) on the side away from each other, an opening (441) is provided on the side away from each other in the inner cavity of a plurality of connection grooves (44), a connection plate (442) is fixedly installed in the inner cavity of the opening (441), a vertical rod (443) is movably passed through the connection plate (442), a block (446) is fixedly installed at the opposite end of the vertical rod (443), and the block (446) is movably inserted in the inner cavity of the adjacent slot (421), a cylinder (444) is fixedly installed at the end away from each other of the vertical rod (443), and a handle (445) is fixedly installed at the end away from each other of the cylinder (444).

3. A sealing structure for installing a gas mass flow controller according to claim 2, characterized in that: A spring (4431) is movably sleeved on the outer circumference of the vertical rod (443), and two ends of the spring (4431) are respectively fixedly connected to the adjacent cylinder (444) and the adjacent connecting plate (442).

4. The sealing structure for installing a gas mass flow controller according to claim 1, characterized in that: The support assembly (5) comprises a bearing plate (51) fixedly mounted on one side of the gas mass flow controller body (1) near the bottom and a fixed plate (52) fixedly mounted on the top of the bearing plate (51) near one side, a threaded rod (53) movably penetrates one side of the fixed plate (52), the end of the threaded rod (53) is rotatably connected to one side of the gas mass flow controller body (1), the outer periphery of the threaded rod (53) is threadedly connected to a threaded sleeve (54), the top of the threaded sleeve (54) is hingedly connected to a hinged rod (55), the top of the hinged rod (55) is fixedly hingedly connected to a movable rod (56), the other end of the movable rod (56) is movably connected to the gas mass flow controller body (1), and one end of the movable rod (56) is hingedly connected to a supporting block (57).

5. A sealing structure for installing a gas mass flow controller according to claim 4, characterized in that: Telescopic columns (571) are fixedly installed at the bottom of the supporting block (57) near the front and rear sides, and the bottom ends of the telescopic columns (571) are fixedly connected to the gas mass flow controller body (1).

6. A sealing structure for installing a gas mass flow controller according to claim 4, characterized in that: A knob (531) is fixedly mounted on one end of the threaded rod (53), and a plurality of anti-skid pads are fixedly mounted on the outer circumference of the knob (531), wherein the plurality of anti-skid pads are arranged in a circular array with the center of one side of the knob (531) as the center.

7. A sealing structure for installing a gas mass flow controller according to claim 4, characterized in that: A limit block (541) is fixedly mounted on the bottom of the threaded sleeve (54), one side of the limit block (541) movably penetrates a limit rod (542), and two ends of the limit rod (542) are respectively fixedly connected to an adjacent gas mass flow controller body (1) and an adjacent fixed plate (52).

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