Laboratory valve mounting structure

Abstract

The utility model discloses a laboratory valve mounting structure, and relates to the technical field of valves, the laboratory valve mounting structure comprises a valve body, the top of the valve body is provided with a rectangular groove, the top of the valve body is fixedly provided with a gear motor, the output end of the gear motor is fixedly connected with a driving shaft, and the driving shaft movably penetrates through a fixed block fixedly connected with the valve body; one end of the driving shaft is fixedly connected with a duplicate gear, the duplicate gear is in meshed connection with a driven gear A, the driven gear A is fixedly connected with a transverse shaft A movably penetrating through the valve body, and the transverse shaft A fixedly penetrates through a sealing plate rotationally connected with the valve body, so that opening or closing of an internal channel of the valve body is achieved; the rotating block is matched with the compression spring to push the extrusion block to abut against the sealing plate, auxiliary positioning of the sealing plate is achieved, the sealing effect is enhanced, in addition, the sealing frame tightly abuts against the sealing plate under the action of the compression spring, the sealing performance is further improved, the problem that local sealing is not tight due to the fact that the sealing ring deforms due to high temperature is solved, and more accurate, long-acting and stable sealing can be achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of valves, in particular to a laboratory valve mounting structure. BACKGROUND

[0002] Laboratory valves are key components in laboratory fluid systems, used to control the flow of various liquids or gases. In some laboratories where flammable or explosive gases or dust may exist, it is necessary to install special valves such as fireproof valves and smoke exhaust valves. When a fire occurs, these valves can automatically close to prevent the spread of fire and smoke through the air duct, protecting personnel and equipment safety and preventing the fire from spreading and causing greater losses.

[0003] In addition, the existing patent No. CN218152545U discloses a kind of air pipe fireproof valve structure, blocking plate is driven forward by electric push rod, so that sealing ring is tightly attached between two groups of valves and the connection between valve and valve body, when air pipe is affected by high-temperature gas, sealing ring deforms, which may cause uneven stress on sealing ring, resulting in local sealing not being tight enough, and sealing ring will age and wear out over time, so it needs to be replaced regularly. Therefore, the present application provides a kind of laboratory valve mounting structure. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the problem of poor sealing of laboratory air duct valves caused by deformation, aging and wear of sealing rings, and to improve the sealing performance and overall reliability of valves in high temperature environment, the application provides a kind of laboratory valve mounting structure.

[0005] The laboratory valve mounting structure provided by the application adopts the following technical scheme:

[0006] A laboratory valve mounting structure, comprising a valve body, a rectangular slot is formed in the top of the valve body, a reduction motor is fixedly installed on the top of the valve body, a drive shaft is fixedly connected to the output end of the reduction motor, a fixed block is movably penetrated through the valve body and fixedly connected to the drive shaft, a double gear is fixedly connected to one end of the drive shaft, a from gear A is meshingly connected to the double gear, a horizontal shaft A is fixedly connected to the from gear A and movably penetrated through the valve body, a sealing plate is fixedly penetrated through the horizontal shaft A and rotatably connected to the valve body, a transmission chain is rotatably connected to the double gear, a from gear B is rotatably connected to the transmission chain, a horizontal shaft B is fixedly connected to the from gear B and rotatably connected to the valve body, and a rotating block is fixedly penetrated through the horizontal shaft B for positioning the sealing plate.

[0007] By adopting the above technical scheme, the reduction motor is driven, the double gear and the transmission chain drive the from gear and the corresponding horizontal shaft to rotate, the rotation of the sealing plate is realized, and the rotating block is used to assist the positioning of the sealing plate, so as to achieve the sealing control and precise positioning of the valve body.

[0008] Preferably, the top of the rectangular groove is provided with a heat insulation groove below the speed reducer motor, and the valve body is provided with an inclined groove on one side.

[0009] By adopting the above technical scheme, the heat insulation groove is arranged at the top of the rectangular groove below the speed reducer motor, which can block heat transfer and reduce the influence of high temperature on the performance and service life of the speed reducer, thereby protecting the motor.

[0010] Preferably, the gear A and the transmission chain and the gear B are arranged in the inclined groove.

[0011] By adopting the above technical scheme, the gear A and the transmission chain and the gear B are arranged in the inclined groove, which can prevent damage to these components during transportation and installation, thereby achieving the protection effect.

[0012] Preferably, a sealing cover is fixedly installed above the heat insulation groove at the top of the valve body, and the speed reducer is located inside the sealing cover.

[0013] By adopting the above technical scheme, the sealing cover is installed at the top of the valve body and covers the speed reducer inside, which can prevent dust and sundries from entering and provide additional protection for the speed reducer, thereby further ensuring the stable operation of the motor.

[0014] Preferably, an intermediate symmetrical limiting block is fixedly connected between one end of the valve body and the side of the rotating block.

[0015] By adopting the above technical scheme, the limiting block in the valve body abuts against the rotating block, which limits the rotation range of the rotating block, avoids excessive rotation of the rotating block, prevents inaccurate positioning of the sealing plate or damage to other components, and ensures the safe and stable operation of the entire device.

[0016] Preferably, one end of the rotating block movably penetrates a limiting column B, one end of the limiting column B is fixedly connected with a pressing block, and the outer peripheral surface of the limiting column B is sleeved with a compression spring B abutting against the rotating block and the pressing block at two ends.

[0017] By adopting the above technical scheme, the limiting column B, the pressing block and the compression spring B on the rotating block form an elastic buffer structure, the elastic force of the compression spring B makes the pressing block abut against the sealing plate, plays a buffering role in the process of assisting the rotating block in positioning the sealing plate, reduces the damage of rigid collision to the components, and at the same time ensures that the rotating block is closely attached to the related structure, thereby further improving the positioning accuracy and stability of the sealing plate.

[0018] Preferably, an intermediate fixedly connected horizontal plate is arranged at one end of the valve body away from the limiting block, the horizontal plate movably penetrates a limiting column A, one end of the limiting column A is fixedly connected with a sealing frame, and the outer peripheral surface of the limiting column A is sleeved with a compression spring A abutting against the sealing frame and the horizontal plate at two ends.

[0019] By adopting the technical scheme, the sealing frame is guided by the limiting column A and tightly abuts against one side of the sealing plate under the elastic force of the compression spring A, and is sleeved with the movable sleeve at one end of the valve body, thereby further enhancing the sealing effect of the valve body and forming a multi-stage sealing structure to effectively prevent medium leakage.

[0020] Preferably, the sealing frame is sleeved with the movable sleeve at one end of the valve body, and one side of the sealing frame abuts against one side of the sealing plate.

[0021] By adopting the technical scheme, the sealing frame is guided by the limiting column A and tightly abuts against one side of the sealing plate under the elastic force of the compression spring A, and is sleeved with the movable sleeve at one end of the valve body, thereby further enhancing the sealing effect of the valve body and forming a multi-stage sealing structure to effectively prevent medium leakage.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. The sealing plate is driven to rotate by the double gear, the transmission component such as gear, to open or close the internal passage of the valve body, at the same time, the rotating block cooperates with the compression spring to push the extrusion block to abut against the sealing plate, to assist the positioning of the sealing plate and enhance the sealing effect, in addition, the sealing frame tightly abuts against the sealing plate under the action of the compression spring, to further improve the sealing performance, thereby avoiding the problem of local sealing failure caused by deformation of the sealing ring due to high temperature, and realizing more accurate, long-term and stable sealing. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is an overall side view structural schematic diagram of the present application file;

[0025] Figure 2 It is an overall sectional view structural schematic diagram of the present application file;

[0026] Figure 3 It is a local structure schematic diagram of the present application file;

[0027] Figure 4 It is a structure schematic diagram of the horizontal axis B and the rotating block of the present application file;

[0028] Figure 5 It is a structure schematic diagram of the valve body of the present application file;

[0029] Figure 6 It is a structure schematic diagram of the double gear and the gear A of the present application file.

[0030] Figures: 1, valve body; 101, rectangular groove; 102, heat insulation groove; 103, inclined groove; 104, horizontal plate; 105, limiting column A; 106, compression spring A; 107, sealing frame;

[0031] 2, gear motor; 3, drive shaft; 4, fixed block; 5, double gear; 6, from gear A; 7, cross shaft A; 8, sealing plate; 9, sealing cover; 10, transmission chain; 11, from gear B; 12, cross shaft B;

[0032] 13, rotating block; 1301, limit post B; 1302, extrusion block; 1303, compression spring B; 14, limit block. DETAILED DESCRIPTION

[0033] The following description will be made in conjunction with the accompanying drawings Figure 1 - Figure 6 Further detailed description is made to the present application.

[0034] The "up, down, left, right" perspective of the device is based on the direction of the arrow in the figure Figure 1 The direction of the figure is the reference

[0035] The embodiment of the present application discloses a laboratory valve mounting structure.

[0036] Referring to Figure 1 、 Figure 3 、 Figure 6 It is shown that a laboratory valve mounting structure, comprising a valve body 1, a rectangular slot 101 is opened at the top of the valve body 1, a gear motor 2 is fixedly installed at one corner of the rectangular slot 101 at the top of the valve body 1 through bolts, the output end of the gear motor 2 is fixedly connected with a drive shaft 3, the drive shaft 3 movably penetrates a fixed block 4, the fixed block 4 is fixedly connected with the valve body 1, the end of the drive shaft 3 away from the gear motor 2 is fixedly connected with a double gear 5, the double gear 5 is composed of two gears with different sizes, the double gear 5 is meshingly connected with a from gear A 6, the from gear A 6 is fixedly connected with a cross shaft A 7, the cross shaft A 7 movably penetrates the valve body 1, the cross shaft A 7 fixedly penetrates a sealing plate 8, the sealing plate 8 is rotatably connected with the valve body 1, the gear motor 2 can drive the sealing plate 8 to turn 90 degrees inside the valve body 1.

[0037] The gear motor 2 is started by power supply, the output end of the gear motor 2 drives the drive shaft 3 to rotate, the double gear 5 on the drive shaft 3 rotates, the double gear 5 meshes with the from gear A 6, and the power is transmitted to the from gear A 6, so that the cross shaft A 7 fixedly connected with the from gear A 6 rotates, and further drives the sealing plate 8 fixedly penetrating the cross shaft A 7 to turn 90 degrees inside the valve body 1, so as to realize the opening or closing operation of the passage inside the valve body 1.

[0038] Referring to Figure 3 - Figure 4As shown, the double gear 5 is rotatably connected with a transmission chain 10, the transmission chain 10 is rotatably connected with a from gear B11, the from gear B11 is fixedly connected with a horizontal shaft B12 rotatably connected with the valve body 1, one end of the horizontal shaft B12 is fixedly connected with the from gear B11, the from gear B11 is rotatably connected with the transmission chain 10, the horizontal shaft B12 is fixedly penetrated with a rotating block 13, one end of the rotating block 13 away from the horizontal shaft B12 is movably penetrated with a limiting column B1301, one end of the limiting column B1301 is fixedly connected with an extrusion block 1302 with an arc surface at the end, the outer circumferential surface of the limiting column B1301 is sleeved with a compression spring B1303, one end of the compression spring B1303 abuts against the rotating block 13, the other end of the compression spring B1303 abuts against the extrusion block 1302, the from gear B11 drives the horizontal shaft B12 and the rotating block 13 to rotate by 90 degrees in the interior of the valve body 1, when the rotating block 13 is in a horizontal state, the arc surface of the extrusion block 1302 above is abutted against the sealing plate 8 under the action of the compression spring B1303, when the rotating block 13 is in a vertical state, the top of the extrusion block 1302 is abutted against the interior of the valve body 1.

[0039] After the reduction motor 2 is started, the output end drives the driving shaft 3 to rotate, the driving shaft 3 drives the double gear 5 connected therewith to rotate, the transmission chain 10 drives the from gear B11 to rotate, the from gear B11 drives the horizontal shaft B12 fixedly connected therewith to rotate, and the rotating block 13 fixedly penetrated with the horizontal shaft B12 also rotates by 90 degrees in the interior of the valve body 1, when the rotating block 13 is in a horizontal state, the compression spring B1303 sleeved on the outer circumference of the limiting column B1301 generates an elastic force, pushes the extrusion block 1302, and makes the arc surface above the extrusion block 1302 abut against the sealing plate 8, thereby assisting the positioning of the sealing plate 8 and enhancing the sealing effect.

[0040] It should be noted that the reduction motor 2 and the connection mode of the connecting wire and the control device are prior art and mature, and therefore the specific connection relationship will not be described in detail, and the existing connection assembly can be installed for use

[0041] Referring to Figure 2 With Figure 5As shown, the top of the rectangular groove 101 is provided with a heat insulation groove 102, which is located below the speed reducer motor 2. A forty-five degree side of the valve body 1 is provided with an inclined groove 103. The gear A6 and the transmission chain 10 and the gear B11 are arranged in the inclined groove 103, and the outer side is flush with the outer side of the valve body 1. The top of the speed reducer motor 2 is fixedly installed with a sealing cover 9 above the heat insulation groove 102. The inside of the valve body 1 is fixedly connected with a limiting block 14 in the middle of the end away from the sealing cover 9. The limiting block 14 is attached to one side of the rotating block 13. The end of the valve body 1 away from the limiting block 14 is fixedly connected with a horizontal cross plate 104 in the middle. The middle position of the cross plate 104 is movably penetrated by a limiting column A 105. One end of the limiting column A 105 is fixedly connected with a sealing frame 107 abutting against one side of the sealing plate 8. The outer peripheral surface of the limiting column A 105 is sleeved with a compression spring A 106. One end of the compression spring A 106 abuts against the sealing frame 107. The other end of the compression spring A 106 abuts against the cross plate 104. The sealing frame 107 is movably sleeved on one end of the valve body 1.

[0042] The sealing cover 9 is installed on the top of the valve body 1 and covers the speed reducer motor 2 inside. It can prevent dust, sundries and the like from entering. The limiting block 14 in the valve body 1 abuts against the rotating block 13, limiting the rotation range of the rotating block 13. The heat insulation groove 102 can reduce the influence of heat on the motor. The sealing frame 107 is tightly abutted on the sealing plate 8 under the action of the compression spring A 106 and is movably sleeved on one end of the valve body 1, further enhancing the sealing performance of the valve body 1.

[0043] The implementation principle of the laboratory valve mounting structure in the embodiment of the application is as follows:

[0044] When a fire or gas leakage occurs in the air pipe, the speed reducer motor 2 is powered on to start. The output end drives the driving shaft 3 to rotate. The double gear 5 on the driving shaft 3 rotates. On the one hand, the double gear 5 meshes with the gear A6 to transmit power to the gear A6, so that the horizontal shaft A7 rotates, and in turn drives the sealing plate 8 to rotate by 90 degrees inside the valve body 1, realizing the opening or closing of the passage in the valve body 1. On the other hand, the double gear 5 drives the gear B11 to rotate through the transmission chain 10, so that the horizontal shaft B12 rotates, driving the rotating block 13 to also rotate by 90 degrees inside the valve body 1. When the rotating block 13 is in a horizontal state, the compression spring B1303 pushes the extrusion block 1302 to abut against the sealing plate 8, assisting the positioning of the sealing plate 8 and enhancing the sealing effect. In terms of protection, the heat insulation groove 102 can effectively reduce the influence of heat on the motor. In addition, the limiting block 14 in the valve body 1 limits the rotation range of the rotating block 13, ensuring the safe operation of the device. At the same time, the sealing frame 107 is tightly abutted on the sealing plate 8 under the action of the compression spring A 106 and is movably sleeved on one end of the valve body 1, further improving the sealing performance of the valve body 1.

[0045] The above merely provides the optional embodiments of the present disclosure, but does not serve to limit the present disclosure. The present disclosure can have various modifications and variations, and can be easily understood and implemented by a person skilled in the art. Any modification, equivalent replacement, improvement, and the like made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A laboratory valve mounting structure, characterized in that: Includes a valve body (1), the top of which is provided with a rectangular groove (101), a geared motor (2) is fixedly installed on the top of the valve body (1), the output end of the geared motor (2) is fixedly connected to a drive shaft (3), the drive shaft (3) is movably connected through a fixing block (4) fixedly connected to the valve body (1), one end of the drive shaft (3) is fixedly connected to a double gear (5), the double gear (5) is meshed with a driven gear A (6), the driven gear A (6) is fixedly connected to a horizontal shaft A (7) movably connected to the valve body (1), and the horizontal shaft A (7) is fixedly connected through a sealing plate (8) rotatably connected to the valve body (1); The double gear (5) is rotatably connected to a transmission chain (10), the transmission chain (10) is rotatably connected to a driven gear B (11), the driven gear B (11) is fixedly connected to a horizontal shaft B (12) rotatably connected to the valve body (1), and the horizontal shaft B (12) is fixedly connected to a rotating block (13) for auxiliary positioning of the sealing plate (8).

2. The laboratory valve installation structure according to claim 1, characterized in that: The top of the rectangular groove (101) is provided with a heat insulation groove (102) located below the geared motor (2), and a slanted groove (103) is provided on one side of the valve body (1).

3. The laboratory valve installation structure according to claim 1, characterized in that: The driven gear A (6), the transmission chain (10), and the driven gear B (11) are all disposed in the inclined groove (103).

4. The laboratory valve installation structure according to claim 1, characterized in that: A sealing cover (9) is fixedly installed on the top of the valve body (1) above the heat insulation groove (102), and the geared motor (2) is located inside the sealing cover (9).

5. The laboratory valve mounting structure according to claim 1, characterized in that: The valve body (1) has a limiting block (14) that is symmetrically fixedly connected to one end of the valve body (1), with its inner side surface fitting against one side of the rotating block (13).

6. The laboratory valve mounting structure according to claim 1, characterized in that: One end of the rotating block (13) movably passes through the limiting post B (1301), and one end of the limiting post B (1301) is fixedly connected to the pressing block (1302). The outer peripheral surface of the limiting post B (1301) is fitted with a compression spring B (1303) with both ends abutting against the rotating block (13) and the pressing block (1302) respectively.

7. The laboratory valve mounting structure according to claim 1, characterized in that: A horizontal plate (104) is fixedly connected to the middle of one end of the valve body (1) away from the limiting block (14). The horizontal plate (104) is movably connected through the limiting post A (105). A sealing frame (107) is fixedly connected to one end of the limiting post A (105). A compression spring A (106) is sleeved on the outer peripheral surface of the limiting post A (105) for abutting against the sealing frame (107) and the horizontal plate (104) at both ends.

8. A laboratory valve mounting structure according to claim 7, characterized in that: The sealing frame (107) is movably sleeved at one end of the valve body (1), and one side of the sealing frame (107) abuts against one side of the sealing plate (8).

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