Throttling device with resistance adjusting structure

Abstract

The utility model relates to the technical field of throttling devices, in particular to a throttling device with a resistance adjusting structure, which comprises a pipeline body, a pressure reducing assembly and an adjusting assembly, the pressure reducing assembly is mounted in the pipeline body and used for reducing pressure of water flow, and the adjusting assembly is mounted in the pipeline body and used for adjusting resistance. The adjusting assembly is installed on the right side of the pressure reducing assembly, used for adjusting the pressure reducing degree of the pressure reducing assembly and capable of adjusting the flow speed of water flow at any time. Through the arrangement of the pressure reduction assembly, the purpose that water flow enters from the left side of the pipeline body and then flows from the right side of the pipeline body to be subjected to the pressure reduction effect can be achieved; the pressure of water flow entering from the left side of the pipeline body and flowing out from the right side of the pipeline body can be conveniently controlled, and the problem that the water flow speed and pressure cannot be adjusted at any time due to the fact that the pressure of an internal spring and a throttling body of a common throttling device in the current market is adjusted is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of throttling devices, in particular to a throttling device with a resistance adjustment structure. Background Art

[0002] The throttling device is a flow device in which the fluid that fills the pipe flows through the pipe. The flow beam will form a local contraction at the throttling point, thereby increasing the flow velocity and reducing the static pressure, thus generating a static pressure difference before and after the throttling device. The throttling flowmeter is a typical differential pressure flowmeter. It is the most commonly used flow meter used to measure the flow of gas, liquid and steam in industrial production.

[0003] The internal springs and throttling components of the common throttling devices currently on the market are often used after the pressure is adjusted, and they do not have the pressure to adjust the water flow rate at any time. If the short damping hole or the inner hole of the main throttling component is blocked, the spring will be affected by the blockage resistance of the throttling component, and the inner hole may remain open, which will further lead to the problem that the throttling device body cannot throttle.

[0004] To this end, we propose a throttling device with an adjustable resistance structure. Summary of the invention

[0005] The purpose of the utility model is to provide a throttling device with a resistance adjustment structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a throttling device with an adjustable resistance structure, comprising a pipeline body, a pressure reducing assembly, the pressure reducing assembly being installed inside the pipeline body, the pressure reducing assembly being used to reduce the pressure of water flow, and an adjusting assembly, the adjusting assembly being installed on the right side of the pressure reducing assembly, the adjusting assembly being used to adjust the degree of pressure reduction of the pressure reducing assembly, and the adjusting assembly being able to adjust the flow rate of the water flow at any time.

[0007] Preferably, the pressure reducing assembly comprises an orifice plate body, which is fixedly mounted inside the pipe body, a mounting plate is placed on the right side of the orifice plate body, a blocking ball is fixedly connected to the left side of the mounting plate, the size of the blocking ball is adapted to the size of the hole in the orifice plate body, and a first spring is fixedly connected between the left side of the mounting plate and the right side of the orifice plate body.

[0008] Preferably, a plurality of limiting sleeves are fixedly connected to the left side of the mounting plate, a plurality of limiting rods are fixedly connected to the right side of the orifice plate body, and each limiting sleeve is clipped with the corresponding limiting rod.

[0009] Preferably, the plurality of limiting sleeves and limiting rods are distributed in a circle about the left side surface of the mounting plate.

[0010] Preferably, the adjusting assembly comprises a top block, which is fixedly connected to the right side surface of the mounting plate, two trapezoidal blocks are placed on the right side of the top block, the inclined surfaces of the two trapezoidal blocks are in contact with the top block, the right sides of the two trapezoidal blocks are fixedly connected to fixed blocks, and a forward and reverse threaded rod is rotatably connected below the inner wall of the pipe body, and the top end of the forward and reverse threaded rod passes through the outer wall of the pipe body and is rotatably connected to the outer wall of the pipe body.

[0011] Preferably, a rotating handle is fixedly connected to the top end of the forward and reverse threaded rod.

[0012] Preferably, a guide groove is provided between the two trapezoidal blocks on their sides away from each other, guide rods are clamped inside the two guide grooves, and the other ends of the two guide rods are fixedly connected to the inner wall of the pipe body.

[0013] Preferably, a second spring is fixedly connected between the two trapezoidal blocks on their sides away from each other, the other ends of the two second springs are fixedly connected to the inner wall of the pipe body, and the two second springs are socketed with the corresponding guide rods.

[0014] The utility model has at least the following beneficial effects:

[0015] 1. When the throttling device is needed, first connect the water inlet to the left end of the device and the water outlet to the right end of the device. When the water flows in from the left end of the pipe body, it will pass through the orifice plate body and then impact the blocking ball. At this time, through the cooperation of the first spring fixedly connected to the right side of the orifice plate body and the blocking ball fixedly connected to the left side of the mounting plate, when the blocking ball is impacted, it will move partly to the right, and then the water will flow from the gap in the hole between the blocking ball and the orifice plate body into the right side of the pipe body, which can achieve a certain effect of reducing the water flow.

[0016] By providing the pressure reducing assembly, the purpose of reducing the pressure on the water flow entering from the left side of the pipeline body and then flowing out from the right side of the pipeline body can be achieved.

[0017] 2. When it is necessary to adjust the speed of water outflow, it is only necessary to rotate the handle in the forward and reverse directions. When the handle is rotated in the forward direction, the forward and reverse threaded rods will rotate synchronously. At this time, through the coordinated setting of the trapezoidal block and the fixed block, through the threaded connection of the fixed block and the forward and reverse threaded rods, and the coordinated setting of the guide groove and the guide rod, the two trapezoidal blocks can be stably moved in the direction away from each other. At this time, the blocking ball will retreat to the right with a slightly larger part when impacted by water. When the handle is rotated in the reverse direction, similarly, the blocking ball will retreat with a slightly smaller part when impacted by water, thereby achieving the purpose of multi-stage adjustment of the water outflow pressure.

[0018] By setting up the adjustment component, the pressure of the water outflow can be easily controlled, which solves the problem of the common throttling devices on the market, whose internal springs and throttling bodies are often used after the pressure is adjusted, and the problem of not being able to adjust the water flow rate and pressure at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0021] Figure 3 For this utility model Figure 2 A schematic diagram of the structure at A;

[0022] Figure 4 It is a schematic diagram of the side cross-sectional structure of the utility model.

[0023] In the figure: 1. pressure reducing assembly; 2. adjusting assembly; 3. pipe body; 4. orifice plate body; 5. mounting plate; 6. blocking ball; 7. first spring; 8. limiting sleeve; 9. limiting rod; 10. top block; 11. trapezoidal block; 12. fixing block; 13. positive and negative threaded rod; 14. rotating handle; 15. guide rod; 16. guide groove; 17. second spring. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0026] Embodiment 1, a throttling device with an adjustable resistance structure, includes a pipe body 3, a pressure reducing assembly 1, the pressure reducing assembly 1 is installed inside the pipe body 3, the pressure reducing assembly 1 is used to reduce the pressure of water flow, and an adjusting assembly 2, the adjusting assembly 2 is installed on the right side of the pressure reducing assembly 1, the adjusting assembly 2 is used to adjust the degree of pressure reduction of the pressure reducing assembly 1, and the adjusting assembly 2 can adjust the flow rate of the water flow at any time.

[0027] The pressure reducing assembly 1 comprises an orifice plate body 4, which is fixedly mounted inside a pipe body 3. A mounting plate 5 is placed on the right side of the orifice plate body 4, a blocking ball 6 is fixedly connected to the left side of the mounting plate 5, and the size of the blocking ball 6 matches the size of the hole of the orifice plate body 4. A first spring 7 is fixedly connected between the left side of the mounting plate 5 and the right side of the orifice plate body 4.

[0028] A plurality of limit sleeves 8 are fixedly connected to the left side of the mounting plate 5, and a plurality of limit rods 9 are fixedly connected to the right side of the orifice plate body 4. Each limit sleeve 8 is snap-fitted to the corresponding limit rod 9, which can provide guidance for the blocking ball 6 when it moves left and right.

[0029] The plurality of limiting sleeves 8 and limiting rods 9 are distributed in a circle about the left side of the mounting plate 5 , which can make the blocking ball 6 more stable when moving left and right, and can prevent the first spring 7 from being significantly deformed.

[0030] When the throttling device is needed, first connect the water inlet to the left end of the device and the water outlet to the right end of the device. When the water flows in from the left end of the pipe body 3, it will pass through the orifice body 4 and then impact the blocking ball 6. At this time, through the cooperation of the first spring 7 fixedly connected to the right side of the orifice body 4 and the blocking ball 6 fixedly connected to the left side of the mounting plate 5, when the blocking ball 6 is impacted, it will move partly to the right, and then the water will flow from the gap in the hole between the blocking ball 6 and the orifice body 4 into the right side of the pipe body 3, so that a certain pressure reduction effect of the water flow can be achieved.

[0031] By providing the pressure reducing assembly 1 , the purpose of reducing the pressure on the water flow entering from the left side of the pipe body 3 and then flowing out from the right side of the pipe body 3 can be achieved.

[0032] Embodiment 2, the adjustment component 2, includes a top block 10, the top block 10 is fixedly connected to the right side surface of the mounting plate 5, two trapezoidal blocks 11 are placed on the right side of the top block 10, the inclined surfaces of the two trapezoidal blocks 11 are in contact with the top block 10, the right sides of the two trapezoidal blocks 11 are fixedly connected to the fixed blocks 12, and the lower part of the inner wall of the pipe body 3 is rotatably connected with the forward and reverse threaded rod 13, and the top end of the forward and reverse threaded rod 13 passes through the outer wall of the pipe body 3 and is rotatably connected to the outer wall of the pipe body 3.

[0033] The top of the forward and reverse threaded rod 13 is fixedly connected with a rotating handle 14, so that the staff can rotate the rotating handle 14 to provide power for the rotation of the forward and reverse threaded rod 13, thereby making it easier for the forward and reverse threaded rod 13 to rotate.

[0034] A guide groove 16 is provided between the sides of the two trapezoidal blocks 11 that are away from each other. A guide rod 15 is clamped inside the two guide grooves 16. The other ends of the two guide rods 15 are fixedly connected to the inner wall of the pipe body 3, which can provide guidance for the two trapezoidal blocks 11 when they are lifted or lowered.

[0035] A second spring 17 is fixedly connected between the sides of the two trapezoidal blocks 11 that are away from each other. The other ends of the two second springs 17 are fixedly connected to the inner wall of the pipe body 3. The two second springs 17 are both socketed with the corresponding guide rods 15, which can provide a certain assist effect for the trapezoidal blocks 11 when they are lifted or lowered.

[0036] When it is necessary to adjust the speed of water outflow, it is only necessary to rotate the rotating handle 14 in the forward and reverse directions. When the rotating handle 14 is rotated in the forward direction, the forward and reverse threaded rods 13 will rotate synchronously. At this time, through the cooperation setting of the trapezoidal block 11 and the fixed block 12, through the threaded connection of the fixed block 12 and the forward and reverse threaded rods 13, and the cooperation setting of the guide groove 16 and the guide rod 15, the two trapezoidal blocks 11 can be stably moved in the direction away from each other. At this time, when the blocking ball 6 is impacted by water, it will retreat a slightly larger part to the right. When the rotating handle 14 is rotated in the reverse direction, similarly, when the blocking ball 6 is impacted by water, it will retreat a slightly smaller part, thereby achieving the purpose of multi-stage adjustment of the pressure of water outflow.

[0037] By setting the adjustment component 2, the pressure of the water outflow can be easily controlled, which solves the problem of the common throttling devices on the market, in which the internal spring and the throttling body are often used after the pressure is adjusted, and the problem of not being able to adjust the water flow rate and pressure at any time is solved.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] 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. A throttling device with a resistance adjustment structure, comprising a pipeline body (3), characterized in that: A pressure reducing assembly (1), the pressure reducing assembly (1) being installed inside the pipeline body (3), the pressure reducing assembly (1) being used to reduce the pressure of a water flow; An adjusting component (2), wherein the adjusting component (2) is installed on the right side of the pressure reducing component (1), and the adjusting component (2) is used to adjust the degree of pressure reduction of the pressure reducing component (1). The adjusting component (2) can adjust the flow rate of the water flow at any time.

2. A throttling device with a resistance adjustment structure according to claim 1, characterized in that: The pressure reducing assembly (1) comprises an orifice plate body (4), wherein the orifice plate body (4) is fixedly mounted inside a pipe body (3), a mounting plate (5) is placed on the right side of the orifice plate body (4), a blocking ball (6) is fixedly connected to the left side of the mounting plate (5), the size of the blocking ball (6) being adapted to the size of a hole in the orifice plate body (4), and a first spring (7) is fixedly connected between the left side of the mounting plate (5) and the right side of the orifice plate body (4).

3. A throttling device with a resistance adjustment structure according to claim 2, characterized in that: A plurality of limiting sleeves (8) are fixedly connected to the left side of the mounting plate (5), and a plurality of limiting rods (9) are fixedly connected to the right side of the orifice plate body (4), and each limiting sleeve (8) is clamped with a corresponding limiting rod (9).

4. A throttling device with a resistance adjustment structure according to claim 3, characterized in that: The plurality of limiting sleeves (8) and limiting rods (9) are distributed in a circular pattern about the left side of the mounting plate (5).

5. The throttling device with a resistance adjustment structure according to claim 2, characterized in that: The adjusting assembly (2) comprises a top block (10), wherein the top block (10) is fixedly connected to the right side surface of the mounting plate (5), two trapezoidal blocks (11) are placed on the right side of the top block (10), the inclined surfaces of the two trapezoidal blocks (11) are in contact with the top block (10), the right sides of the two trapezoidal blocks (11) are fixedly connected to a fixing block (12), and a forward and reverse threaded rod (13) is rotatably connected below the inner wall of the pipe body (3), and the top end of the forward and reverse threaded rod (13) penetrates the outer wall of the pipe body (3) and is rotatably connected to the outer wall of the pipe body (3).

6. A throttling device with a resistance adjustment structure according to claim 5, characterized in that: A rotating handle (14) is fixedly connected to the top end of the forward and reverse threaded rod (13).

7. The throttling device with a resistance adjustment structure according to claim 5, characterized in that: A guide groove (16) is provided between the two trapezoidal blocks (11) on the sides away from each other, a guide rod (15) is clamped inside the two guide grooves (16), and the other ends of the two guide rods (15) are fixedly connected to the inner wall of the pipe body (3).

8. The throttling device with a resistance adjustment structure according to claim 7, characterized in that: A second spring (17) is fixedly connected between the two trapezoidal blocks (11) on their sides that are away from each other, the other ends of the two second springs (17) are fixedly connected to the inner wall of the pipe body (3), and the two second springs (17) are sleeved with the corresponding guide rods (15).

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