Air flow regulating switch

Abstract

The invention belongs to the technical field of airflow adjustment, and particularly relates to an airflow adjusting switch which comprises a main rotary knob, an auxiliary rotary knob is clamped in the main rotary knob, and the main rotary knob is matched with the auxiliary rotary knob. Compared with an existing product, the structure of the airflow adjusting switch is simplified, product parts are reduced, operation is convenient, action is smoother, and airflow is controlled to be uniform; only one operating air chamber is designed, the performance is improved, the movement mode of a product is changed from axial movement to vertical movement through slope step transmission, the movement stroke is reduced, abrasion of a sealing ring is avoided, and the service life is longer; the product is only provided with an air passing cavity, and a sealing ring is used, so that the problem of sealing air leakage is avoided; the product structure is not fastened by a screw and is assembled in a buckling manner, and the relative position is thickened, so that the assembly is convenient and quick, and inconsistent tightness of the product is avoided; the product is in stepped transmission, so that the precision is higher and more stable, and the air flow is accurately controlled.

Description

Technical Field

[0001] The invention relates to the technical field of airflow regulation, in particular to an airflow regulating switch. Background Art

[0002] Flow switches are mainly installed online or plug-in in water, gas, oil and other medium pipelines to monitor the water flow in the water system; when the water flow is higher or lower than a certain set point, an output alarm signal is triggered and transmitted to the unit. After receiving the signal, the system can make corresponding indication actions to avoid or reduce "dry burning" of the host.

[0003] Air flow regulation requires the use of an adjustment switch for operation. Existing products have complex structures, too many parts and components, and poor durability. The air flow control is uneven during operation, and there is a risk of failure. Existing products have too many parts and components, and the internal kinetic energy of the product is prone to abnormal noise or jamming during transmission. The product uses special-shaped sealing rings and multiple air chambers in the structure. A large number of chambers and special-shaped sealing rings will increase the sealing problem of the overall structure and increase the risk of air leakage during use. Existing products use screw connection structures, which are prone to rust and fall off, and the tightness is difficult to control during assembly.

[0004] Therefore, an air flow regulating switch is proposed to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide an air flow regulating switch to solve the problems proposed in the above background technology, such as complex product structure, too many product parts and poor durability, uneven air flow control during operation, and the risk of failure. The existing products have too many parts, and the internal kinetic energy of the products is prone to abnormal noise or jamming during transmission; the products use special-shaped sealing rings and multiple air chambers in the structure, and a large number of chambers and special-shaped sealing rings will increase the sealing problem of the overall structure, increasing the risk of air leakage during use; the existing products use a screw connection structure, which is prone to rust and fall off, and the tightness is difficult to control during assembly.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an air flow regulating switch, comprising a main knob, a sub-knob engaged inside the main knob, the sub-knob being located inside the main knob, the main knob being adapted to the sub-knob, an outer frame body being provided below the main knob, a control mechanism being connected below the sub-knob, the control mechanism being located inside the outer frame body, the control mechanism comprising an inclined step, a body, a transmission rod, and a positioning pin hole, the inclined step being located on the upper wall surface of the body, the transmission rod being connected to the middle portion of the lower wall of the body, a valve body being connected below the body, the valve body comprising an internal air flow channel, the transmission rod penetrating the valve body and extending into the air flow channel, a spring being connected to the upper side of the outer wall of the transmission rod, a sealing ring being provided below the spring, and the sealing ring being sleeved on the outer wall surface of the transmission rod.

[0007] Preferably, the auxiliary knob comprises an extension section, a connection hole is provided at the connection between the extension section and the main knob, the connection hole passes through the main knob and extends to the inside of the extension section, and a fastener is installed inside the connection hole.

[0008] Preferably, a groove is provided in the middle of the lower wall of the main knob, the main knob is engaged with the auxiliary knob through the groove, and the cross-sectional diameter of the auxiliary knob is smaller than the cross-sectional diameter of the main knob.

[0009] Preferably, a mounting hole is opened in the middle of the upper wall of the outer frame body, the inner diameter of the mounting hole is larger than the cross-sectional diameter of the main knob, and the main knob is rotatably connected to the inner wall of the inner cavity of the mounting hole.

[0010] Preferably, the outer frame body is hollow, and the outer frame body includes four buckles. The outer frame body is connected to the valve body via the four buckles, and the four buckles are in contact with the outer wall surface of the valve body.

[0011] Preferably, the slope step is matched with the lower wall surface of the auxiliary knob, and the auxiliary knob is connected to the main body through the slope step.

[0012] Preferably, the spring and the sealing ring are located between the control mechanism and the valve body, and the sealing ring is located directly below the spring.

[0013] Preferably, the four positioning pin holes are evenly opened on the lower wall surface of the main body, and the inside of the valve body is evenly connected with four positioning pins, and the four positioning pins correspond to the positions of the four positioning pin holes.

[0014] Preferably, the valve body is connected to the main body via four positioning pins and four positioning pin holes.

[0015] Preferably, the air flow channel is arranged horizontally, and the transmission rod is perpendicular to the air flow channel.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: compared with the existing products, the device of this scheme is simplified in structure, reduces product parts, makes the operation lighter and smoother, and controls the air flow evenly; only one operating air chamber is designed, the performance is improved, and the movement mode of the product is changed from axial movement through the inclined step to up and down movement, which reduces the movement stroke and avoids the wear of the sealing ring, and has a longer service life; the product has only one air chamber and uses one sealing ring, which avoids the problem of sealing leakage; the product structure does not use screws to fasten, but is assembled in the form of buckles, and the relative position is thickened, which makes assembly convenient and quick, and avoids inconsistent tightness of the product; because the product is a stepped transmission, the accuracy is higher and more stable, so as to achieve precise control of the air flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front structure of the present invention:

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the explosion structure of the present invention;

[0020] Figure 4 It is a bottom view structural diagram of the main body of the present invention;

[0021] Figure 5 It is a schematic diagram of the front structure of the main body of the present invention;.

[0022] In the figure: 1. main knob; 2. outer frame body; 3. valve body; 4. connecting hole; 5. sub-knob; 6. control mechanism; 7. spring; 8. sealing ring; 9. positioning pin; 601. slope step; 602. main body; 603. transmission rod; 604. positioning pin hole; 301. air flow channel; 501. extension section. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0024] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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.

[0025] Example:

[0026] See also Figure 1-5 The present invention provides a technical solution: an air flow regulating switch, comprising a main knob 1, a sub-knob 5 is engaged inside the main knob 1, the sub-knob 5 is located inside the main knob 1, the main knob 1 is adapted to the sub-knob 5, an outer frame body 2 is provided below the main knob 1, a control mechanism 6 is connected below the sub-knob 5, the control mechanism 6 is located inside the outer frame body 2, the control mechanism 6 comprises an inclined step 601, a main body 602, a transmission rod 603, and a positioning pin hole 604, the inclined step 601 is located on the upper wall surface of the main body 602, the transmission rod 603 is connected to the middle part of the lower wall of the main body 602, a valve body 3 is connected below the main body 602, the valve body 3 comprises an internal air flow channel 301, the transmission rod 603 penetrates the valve body 3 and extends to the inside of the air flow channel 301, a spring 7 is connected to the upper side of the outer wall of the transmission rod 603, a sealing ring 8 is provided below the spring 7, and the sealing ring 8 is sleeved on the outer wall surface of the transmission rod 603.

[0027] Wherein, the auxiliary knob 5 includes an extension section 501, and a connecting hole 4 is provided at the connection between the extension section 501 and the main knob 1, and the connecting hole 4 passes through the main knob 1 and extends to the inside of the extension section 501, and a fastener is installed inside the connecting hole 4, and a groove is provided in the middle of the lower wall of the main knob 1, and the main knob 1 is engaged with the auxiliary knob 5 through the groove, and the cross-sectional diameter of the auxiliary knob 5 is smaller than the cross-sectional diameter of the main knob 1, and a mounting hole is provided in the middle position of the upper wall of the outer frame body 2, and the inner diameter of the mounting hole is larger than the cross-sectional diameter of the main knob 1, and the main knob 1 is rotatably connected to the inner wall of the inner cavity of the mounting hole, and the outer frame body 2 is hollow, and the outer frame body 2 includes four buckles, and the outer frame body 2 is connected to the valve body 3 through the four buckles The four buckles are in contact with the outer wall surface of the valve body 3, the inclined step 601 is matched with the lower wall surface of the sub-knob 5, the sub-knob 5 is connected to the main body 602 through the inclined step 601, the spring 7 and the sealing ring 8 are located between the control mechanism 6 and the valve body 3, the sealing ring 8 is located directly below the spring 7, the four locating pin holes 604 are evenly opened on the lower wall surface of the main body 602, the inside of the valve body 3 is evenly connected with four locating pins 9, the four locating pins 9 correspond to the positions of the four locating pin holes 604, the valve body 3 is connected to the main body 602 through the four locating pins 9 and the four locating pin holes 604, the airflow channel 301 is horizontally arranged, and the transmission rod 603 is perpendicular to the airflow channel 301.

[0028] Working principle: The main knob 1 drives the auxiliary knob 5 to rotate, and the auxiliary knob 5 transmits the twisting force to the internal control mechanism 6 through the inclined step 601. The transmission rod 603 on the internal control mechanism 6 moves up and down. The spring 7 on the outer wall of the transmission rod 603 on the control mechanism 6 maintains the upward force, and the sealing ring 8 moves up and down in the cavity and plays a sealing role, thereby adjusting the gap of the airflow channel 301 to achieve the adjustment of the airflow volume.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air flow regulating switch, comprising a main knob (1), characterized in that: The main knob (1) is internally engaged with a sub-knob (5), the sub-knob (5) is located inside the main knob (1), the main knob (1) and the sub-knob (5) are adapted to each other, an outer frame body (2) is provided below the main knob (1), a control mechanism (6) is connected below the sub-knob (5), the control mechanism (6) is located inside the outer frame body (2), the control mechanism (6) comprises an inclination step (601), a main body (602), a transmission rod (603), and a positioning pin hole (604), the inclination step (601) Located on the upper wall surface of the main body (602), the transmission rod (603) is connected to the middle part of the lower wall of the main body (602), and a valve body (3) is connected below the main body (602). The valve body (3) includes an internal air flow channel (301). The transmission rod (603) passes through the valve body (3) and extends to the inside of the air flow channel (301). A spring (7) is connected to the upper side of the outer wall of the transmission rod (603). A sealing ring (8) is provided below the spring (7), and the sealing ring (8) is sleeved on the outer wall surface of the transmission rod (603).

2. The air flow regulating switch according to claim 1, characterized in that: The auxiliary knob (5) comprises an extension section (501), a connection hole (4) is provided at the connection between the extension section (501) and the main knob (1), the connection hole (4) passes through the main knob (1) and extends to the inside of the extension section (501), and a fastener is installed inside the connection hole (4).

3. The air flow regulating switch according to claim 1, characterized in that: A groove is provided in the middle of the lower wall of the main knob (1), and the main knob (1) is engaged with the auxiliary knob (5) via the groove. The cross-sectional diameter of the auxiliary knob (5) is smaller than the cross-sectional diameter of the main knob (1).

4. The air flow regulating switch according to claim 1, characterized in that: A mounting hole is provided in the middle of the upper wall of the outer frame body (2); the inner diameter of the mounting hole is larger than the cross-sectional diameter of the main knob (1); and the main knob (1) is rotatably connected to the inner wall of the inner cavity of the mounting hole.

5. The air flow regulating switch according to claim 1, characterized in that: The outer frame body (2) is hollow, and comprises four buckles. The outer frame body (2) is connected to the valve body (3) via the four buckles, and the four buckles are in contact with the outer wall surface of the valve body (3).

6. The air flow regulating switch according to claim 1, characterized in that: The slope step (601) is matched with the lower wall surface of the auxiliary knob (5), and the auxiliary knob (5) is connected to the main body (602) via the slope step (601).

7. The air flow regulating switch according to claim 1, characterized in that: The spring (7) and the sealing ring (8) are located between the control mechanism (6) and the valve body (3), and the sealing ring (8) is located directly below the spring (7).

8. The air flow regulating switch according to claim 1, characterized in that: The four positioning pin holes (604) are evenly arranged on the lower wall surface of the main body (602), and the inside of the valve body (3) is evenly connected with four positioning pins (9), and the positions of the four positioning pins (9) correspond to the four positioning pin holes (604).

9. The air flow regulating switch according to claim 8, characterized in that: The valve body (3) is connected to the main body (602) via four positioning pins (9) and four positioning pin holes (604).

10. The air flow regulating switch according to claim 1, characterized in that: The airflow channel (301) is arranged horizontally, and the transmission rod (603) is perpendicular to the airflow channel (301).

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