Flow adjusting device with locking mechanism

Abstract

The utility model belongs to the technical field of flow valves, and particularly relates to a flow adjusting device with a locking mechanism, which comprises a knob sub-assembly, an upper casing sub-assembly and a lower casing sub-assembly, and the knob sub-assembly is mounted between the upper casing sub-assembly and the lower casing sub-assembly. The knob sub-assembly comprises an adjusting knob, an anti-rotation clamping sleeve, an auxiliary knob and a lead screw, the lower half section of the lead screw is screwed into the adjusting knob, the anti-rotation clamping sleeve is installed on the upper portion of the adjusting knob, the upper half section of the lead screw penetrates through the anti-rotation clamping sleeve to be screwed into the auxiliary knob, an anti-disengaging ring is installed between the anti-rotation clamping sleeve and the auxiliary knob, and the anti-disengaging ring is installed on the upper portion of the adjusting knob. The flow regulating device has the advantages that flow regulation or pipeline closing cannot be realized by independently rotating the regulating knob or the auxiliary knob, and operation can be performed only by synchronously rotating the regulating knob or the auxiliary knob, so that the possibility of unnecessary change of the posture of the flow regulating device caused by mistakenly touching or accidentally and independently rotating the regulating knob is greatly reduced; and the stability and the reliability of the device are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to flow valve technical field, concretely relates to a flow regulating device with locking mechanism. BACKGROUND

[0002] In many fields such as industrial production and fluid delivery, flow regulating device is the key component to realize accurate control of fluid flow. However, the traditional flow regulating device exposes many problems in practical application. In terms of operation stability, many conventional flow regulating devices only rely on a single knob for operation, which makes it easy for the knob to rotate due to personnel mis-touch or accidental collision in complex working environment, and further causes unnecessary changes in the flow regulating state of the device. Such misoperation may cause a series of production accidents or reduce production efficiency, seriously affecting the normal operation of the system. Sealing performance is an important performance indicator of flow regulating device. The sealing structure design of traditional device is relatively simple, usually only a single sealing washer or sealing ring is used. In the face of high pressure, high corrosive fluid and long-term use, sealing failure is easy to occur, leading to fluid leakage. This not only causes resource waste, but also may pollute the environment, and even endanger the safety of operating personnel. Structural stability is related to the service life and reliability of flow regulating device. The internal structure connection of part of traditional device is not firm enough, when subjected to external forces such as vibration and impact, internal components are easy to loosen, displace or even fall off, thereby affecting the normal work of the device and increasing the maintenance frequency and cost of equipment.

[0003] In addition, the assembly process of traditional flow regulating device is often complex, which requires professional personnel to spend a lot of time and effort to operate. Moreover, during later maintenance, due to unreasonable structure design, it is difficult to disassemble and replace faulty components, further increasing the downtime and maintenance cost of equipment. UTILITY MODEL CONTENTS

[0004] In view of the above deficiencies in the prior art, the utility model provides a flow regulating device with locking mechanism to solve the problem that the adjusting switch posture changes under the action of misoperation or external vibration and pulse pressure and other factors in the prior art.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A flow regulating device with locking mechanism, comprising a knob subassembly, an upper housing subassembly and a lower housing subassembly, the knob subassembly is installed between the upper housing subassembly and the lower housing subassembly, the knob subassembly comprises an adjusting knob, an anti-rotation sleeve, a secondary knob and a lead screw, the lower half of the lead screw is screwed into the inside of the adjusting knob, the anti-rotation sleeve is installed on the upper part of the adjusting knob, the upper half of the lead screw is screwed into the inside of the secondary knob through the anti-rotation sleeve, a anti-loosing ring is arranged between the anti-rotation sleeve and the secondary knob, a groove is arranged on the anti-rotation sleeve, and an anti-rotation pin is arranged in the groove.

[0007] Further, the upper housing subassembly comprises an upper housing, a second inner sealing ring and an outer sealing ring, the second inner sealing ring is installed at the inner side interface of the upper housing, and the outer sealing ring is installed at the outer side interface of the upper housing.

[0008] Further, the lower housing subassembly comprises a lower housing, a fixed part and a connecting protrusion, the knob subassembly is connected with the lower housing through the fixed part, and the connecting protrusion is arranged at the inner side interface of the lower housing.

[0009] Further, a group of inner sealing pads are arranged at the connection positions of the knob subassembly, the upper housing subassembly and the lower housing subassembly, the inner wall of the inner sealing pad is provided with an arc shape matched with the knob subassembly, and a through hole corresponding to the knob subassembly is further arranged on the inner sealing pad.

[0010] Further, the adjusting knob comprises a rotating part, an adjusting handle, a connecting core and a first sealing ring, the adjusting handle is installed on one side of the rotating part, the connecting core is installed at the lower end of the rotating part, and the first sealing ring is arranged between the rotating part and the connecting core.

[0011] Further, a flow guiding hole is arranged on the connecting core.

[0012] Further, the lead screw is provided with a U-shaped groove on one side of the anti-rotation pin, and the U-shaped groove of the anti-rotation pin is matched with the clamping groove.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] Since the single rotation of the adjusting knob or the secondary knob cannot realize flow regulation or pipeline closing, only the synchronous rotation of the two can be operated, which greatly reduces the possibility of unnecessary change of the posture of the flow regulating device caused by accidental touch or accidental single rotation of the adjusting knob 1, improves the stability and reliability of the device.

[0015] The second inner sealing ring is arranged at the inner side of the upper shell, the outer sealing ring is arranged at the outer side of the upper shell, the inner sealing gasket is arranged at the connecting position of the knob subassembly and the upper and lower shell subassemblies, the multi-channel sealing structure guarantees the sealing performance when the device is connected with pipelines and internal components, effectively prevents fluid leakage, and ensures the accuracy of flow regulation and normal operation of the device.

[0016] The anti-rotation sleeve and the secondary knob are provided with an anti-disengagement ring, and the anti-disengagement ring and the anti-rotation sleeve are fixedly connected through laser welding, which guarantees the stability of the connection between the internal components of the knob subassembly and avoids affecting the performance of the device due to loosening of the components during long-term use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an exploded structural schematic view of an embodiment of the flow regulating device with a locking mechanism of the utility model Figure One ;

[0018] Figure 2 It is an exploded structural schematic view of an embodiment of the flow regulating device with a locking mechanism of the utility model Figure Two ;

[0019] Figure 3 It is a three-dimensional structural schematic view of an embodiment of the flow regulating device with a locking mechanism of the utility model

[0020] Figure 4 It is a sectional structural schematic view of an embodiment of the flow regulating device with a locking mechanism of the utility model

[0021] The reference signs in the drawings of the specification include:

[0022] Knob subassembly A, upper shell subassembly B, lower shell subassembly C, regulating knob 1, upper shell 2, connecting groove 200, lower shell 3, fixed part 30, connecting protrusion 31, first sealing ring 4, second inner sealing ring 5, inner sealing gasket 6, through hole 60, outer sealing ring 7, anti-rotation sleeve 8, recess 80, secondary knob 9, screw rod 10, clamping groove 100, rotating part 101, adjusting handle 102, connecting core 103, flow guide hole 105, anti-disengagement ring 11, anti-rotation pin 12, U-shaped groove 120. DETAILED DESCRIPTION

[0023] In order for those skilled in the art to better understand the utility model, the technical solutions of the utility model are further described below in combination with the drawings and embodiments:

[0024] It should be noted that the same or similar reference signs in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary description, and cannot be understood as a limitation on the present patent, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0025] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features.

[0026] In the description of the present application, unless otherwise explicitly specified and limited, if the term "connection" and the like indicating the connection relationship between the components appears, the term should be interpreted broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that those skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present application.

[0027] Embodiment

[0028] As Figures 1-4As shown, a flow regulating device with locking mechanism includes a knob subassembly A, an upper housing subassembly B and a lower housing subassembly C, the knob subassembly A is installed between the upper housing subassembly B and the lower housing subassembly C, the knob subassembly A includes an adjusting knob 1, an anti-rotation sleeve 8, a secondary knob 9 and a lead screw 10, the lower half of the lead screw 10 is screwed into the inside of the adjusting knob 1, the anti-rotation sleeve 8 is installed on the upper part of the adjusting knob 1, the upper half of the lead screw 10 is screwed into the inside of the secondary knob 9 through the anti-rotation sleeve 8, an anti-disengagement ring 11 is installed between the anti-rotation sleeve 8 and the secondary knob 9, a groove 80 is provided on the anti-rotation sleeve 8, and an anti-rotation pin 12 is provided in the groove 80, the upper housing subassembly B includes an upper housing 2, a second inner sealing ring 5 and an outer sealing ring 7, the second inner sealing ring 5 is installed at the interface on the inner side of the upper housing 2, the outer sealing ring 7 is installed at the interface on the outer side of the upper housing 2, and the upper housing 2 is also provided with a connecting groove 200.

[0029] The lower housing subassembly C includes a lower housing 3, a fixed part 30 and a connecting protrusion 31, the knob subassembly A is connected with the lower housing 3 through the fixed part 30, the connecting protrusion 31 is arranged at the interface on the inner side of the lower housing 3, a group of inner sealing pads 6 are arranged at the connection between the knob subassembly A, the upper housing subassembly B and the lower housing subassembly C, the inner wall of the inner sealing pad 6 is provided with an arc shape matched with the knob subassembly A, and the inner sealing pad 6 is also provided with a through hole 60 corresponding to the knob subassembly A.

[0030] The adjusting knob 1 includes a rotating part 101, an adjusting handle 102, a connecting core 103 and a first sealing ring 4, the adjusting handle 102 is installed on one side of the rotating part 101, the connecting core 103 is installed at the lower end of the rotating part 101, the first sealing ring 4 is arranged between the rotating part 101 and the connecting core 103, the connecting core 103 is provided with a flow guide hole 105, the middle section of the lead screw 10 is provided with a clamping groove 100, one side of the anti-rotation pin 12 is provided with a U-shaped groove 120, and the U-shaped groove 120 of the anti-rotation pin 12 is matched with the clamping groove 100. When connected, the flow guide hole 105 on the adjusting knob 1 is connected with the through hole 60 on the inner sealing pad 6.

[0031] When it is necessary to adjust the flow or close the channel, the adjusting knob 1 and the secondary knob 9 need to be rotated synchronously. Since the lower half of the lead screw 10 is screwed into the inside of the adjusting knob 1 and the upper half is screwed into the inside of the secondary knob 9, when rotated synchronously, the lead screw 10 will move axially under the action of the adjusting knob 1 and the secondary knob 9, the rotating part 101 of the adjusting knob 1 drives the connecting core 103 to rotate, and the connecting core 103 is provided with a flow guide hole 105. With the axial movement of the lead screw 10, the degree of connection between the flow guide hole 105 and the through hole 60 on the inner sealing pad 6 changes, thereby realizing the adjustment of the flow. When the flow guide hole 105 is completely misaligned with the through hole 60, the pipeline is closed.

[0032] When the adjustment knob 1 is rotated alone, the U-shaped groove 120 of the anti-rotation pin 12 is embedded in the clamping groove 100 of the lead screw 10, and the anti-rotation pin 12 is installed in the groove 80 of the anti-rotation sleeve 8, so the anti-rotation sleeve 8 limits the rotation of the anti-rotation pin 12, and the lead screw 10 cannot rotate, so adjustment cannot be achieved. Similarly, the secondary knob 9 cannot be adjusted when it is rotated alone.

[0033] In the initial communication state, the flow guide hole 105 on the adjustment knob 1 is in communication with the through hole 60 on the inner sealing gasket 6, and fluid can flow between the two pipelines through the flow guide hole 105 and the through hole 60.

[0034] Since the adjustment knob 1 or the secondary knob 9 cannot achieve flow adjustment or pipeline closing when rotated alone, only synchronous rotation of the two can operate, which greatly reduces the possibility of unnecessary changes in the posture of the flow adjustment device due to accidental touch or accidental single rotation of the adjustment knob 1, and improves the stability and reliability of the device.

[0035] The second inner sealing ring 5 is arranged at the inner interface of the upper shell 2, the outer sealing ring 7 is arranged at the outer interface, the inner sealing gasket 6 is arranged at the connection between the knob sub-assembly A and the upper and lower shell sub-assemblies, and the multi-channel sealing structure ensures the sealing performance of the device when connected with the pipeline and the internal components, effectively preventing fluid leakage and ensuring the accuracy of flow adjustment and normal operation of the device.

[0036] The anti-disengagement ring 11 is arranged between the anti-rotation sleeve 8 and the secondary knob 9, and is fixedly connected with the anti-rotation sleeve 8 by laser welding. This structure design ensures the stability of the connection between the internal components of the knob sub-assembly A, and avoids affecting the performance of the device due to component loosening during long-term use.

[0037] The threaded connection between the lead screw 10 and the adjustment knob 1 and the secondary knob 9, and the embedded structure of the anti-rotation pin 12 and the clamping groove 100 of the lead screw 10, make the structure of the entire device more stable, and can withstand certain external forces without damage or displacement.

[0038] The assembly process of the device is clear. First, the lower shell sub-assembly C is assembled with the lead screw, and then the anti-rotation sleeve, the anti-rotation pin, the secondary knob, and the anti-disengagement ring are assembled in sequence to form a flow adjustment device assembly with a locking mechanism. This assembly method is convenient for production and maintenance and repair in the later stage. If a component fails, it can also be easily disassembled and replaced.

[0039] By synchronously rotating the adjustment knob 1 and the secondary knob 9, the axial movement of the lead screw 10 can be accurately controlled, and the degree of communication between the flow guide hole 105 and the through hole 60 can be accurately changed, thereby achieving precise adjustment of the flow and meeting the demand for fluid flow control in different scenarios.

[0040] The above-mentioned is only the embodiment of the present application, and the common knowledge of the specific structure and characteristics in the scheme is not described in detail, the ordinary skilled in the art knows all the ordinary technical knowledge in the technical field of the present application before the application date or the priority date, can know all the prior art in the field, and has the ability to apply the conventional experimental means before the date, the ordinary skilled in the art can improve and implement the present scheme under the inspiration given in the present application, and some typical known structures or known methods should not become an obstacle for the ordinary skilled in the art to implement the present application. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the present application.

Claims

1. A flow regulating device having a locking mechanism, characterized by: The application relates to a rotary knob assembly, which comprises a rotary knob subassembly (A), an upper shell subassembly (B) and a lower shell subassembly (C), the rotary knob subassembly (A) being arranged between the upper shell subassembly (B) and the lower shell subassembly (C), the rotary knob subassembly (A) comprising an adjusting knob (1), an anti-rotation sleeve (8), a secondary knob (9) and a screw rod (10), the lower half of the screw rod (10) being screwed into the inside of the adjusting knob (1), the anti-rotation sleeve (8) being arranged on the upper part of the adjusting knob (1), the upper half of the screw rod (10) being screwed into the inside of the secondary knob (9) through the anti-rotation sleeve (8), the anti-rotation sleeve (8) and the secondary knob (9) being provided with an anti-falling ring (11), the anti-rotation sleeve (8) being provided with a groove (80), and the groove (80) being provided with an anti-rotation pin (12).

2. The flow regulating device with locking mechanism of claim 1, wherein: The upper shell subassembly (B) comprises an upper shell (2), a second inner sealing ring (5) and an outer sealing ring (7), the second inner sealing ring (5) being arranged at the inner interface of the upper shell (2), and the outer sealing ring (7) being arranged at the outer interface of the upper shell (2), the upper shell (2) being further provided with a connecting groove (200).

3. The flow regulating device with locking mechanism of claim 1, wherein: The lower shell subassembly (C) comprises a lower shell (3), a fixing part (30) and a connecting protrusion (31), the rotary knob subassembly (A) being connected with the lower shell (3) through the fixing part (30), and the connecting protrusion (31) being arranged at the inner interface of the lower shell (3).

4. The flow regulating device with locking mechanism of claim 1, wherein: A group of inner sealing pads (6) are arranged at the connecting positions of the rotary knob subassembly (A), the upper shell subassembly (B) and the lower shell subassembly (C), the inner wall of the inner sealing pad (6) is provided with an arc-shaped structure matched with the rotary knob subassembly (A), and the inner sealing pad (6) is further provided with a through hole (60) matched with the rotary knob subassembly (A).

5. The flow regulating device with locking mechanism of claim 1, wherein: The adjusting knob (1) comprises a rotating part (101), an adjusting handle (102), a connecting core (103) and a first sealing ring (4), the adjusting handle (102) being arranged at one side of the rotating part (101), the connecting core (103) being arranged at the lower end of the rotating part (101), and the first sealing ring (4) being arranged between the rotating part (101) and the connecting core (103).

6. The flow regulating device with locking mechanism of claim 5, wherein: The connecting core (103) is provided with a flow guide hole (105).

7. The flow regulating device with locking mechanism of claim 1, wherein: The middle section of the screw rod (10) is provided with a clamping groove (100), one side of the anti-rotation pin (12) is provided with a U-shaped groove (120), and the U-shaped groove (120) of the anti-rotation pin (12) is matched with the clamping groove (100).

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