Throttling one-way valve

Abstract

The utility model discloses a throttling one-way valve which comprises a valve body and a valve element used for controlling water flow, and further comprises an adjusting mechanism and an installation filtering mechanism. The adjusting mechanism is arranged at the top of the valve body and comprises a rotary adjusting rod, a mounting block, a displacement clamping block and a shielding flexible plate; the rotary adjusting rod is rotationally arranged in the valve body and connected with the valve element, and a plurality of abutting grooves are formed in the outer portion of the rotary adjusting rod. The mounting block is arranged at the top of the valve body and located on one side of the rotary adjusting rod. The displacement clamping block is slidably arranged at the top of the mounting block, and the displacement clamping block can be in an abutting state with the abutting groove when sliding; the shielding flexible plates are arranged on the two sides of the displacement clamping block respectively. The top of the mounting block is shielded through the adjusting mechanism, and dust or water vapor can be effectively prevented from entering the mounting block. The device does not need to depend on additional devices such as an electric telescopic rod, the system structure is simplified, and the production cost is remarkably reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to throttle valve technical field, concretely relates to a throttle check valve. BACKGROUND

[0002] In fluid control systems, throttle check valves play a crucial role as they not only ensure smooth flow of fluid in a specific direction but also effectively regulate the flow to meet different operating conditions. Traditional throttle check valve designs often rely on complex mechanical structures or electric actuators to achieve precise flow control, which not only increases the manufacturing cost of the equipment but also may lead to higher maintenance difficulty and decreased reliability. Especially in some cost-controlled application scenarios such as agricultural irrigation systems, domestic water supply and drainage systems, and small industrial cooling circulation systems, it is particularly important to find an economical and efficient throttle check valve solution.

[0003] In addition, many throttle check valves, when installed outdoors or in harsh environments, their top openings are prone to become channels for dust, water vapor, and other impurities to enter, which not only affects the normal operation of the valve but also may accelerate the corrosion of internal parts, shortening the service life. Therefore, designing a throttle check valve that can effectively block the top of the mounting block and prevent external pollutants from entering is of great significance to improve the stability of the overall system and prolong the service life of the equipment.

[0004] After searching, in the prior art, a Chinese patent (authorized publication number CN219606081 U) discloses a simple structure throttle check valve, which comprises a valve body, an inlet pipe and an outlet pipe, the valve body is connected with the inlet pipe on the left side surface, the valve body is connected with the outlet pipe on the right side surface, the inlet pipe is provided with a filter pipe on the left side, the filter pipe is internally installed with a filter plate, a plurality of filter holes are formed on the right side surface of the filter plate, an outer shell is connected on the upper surface of the valve body, an adjusting push rod is connected on the upper end of the outer shell, and a valve plate is arranged in the valve body. The throttle check valve is provided with a filter pipe, a filter plate and filter holes, which can filter impurities in the liquid before entering the valve body, prevent impurities from adhering to the valve body or the pipeline, cause the liquid to flow smoothly or cause the valve body to be blocked, and adjust the size of the liquid flow by setting the adjusting push rod and the valve plate.

[0005] However, the above structure in actual use controls the water flow by the electric telescopic rod to control the valve core, although the electric telescopic rod provides flexible and accurate control means, but its introduction increases the complexity and maintenance cost of the system. UTILITY MODEL CONTENTS

[0006] In view of the above problems, the throttling check valve is provided with an adjusting mechanism, which solves the problem that an electric telescopic rod needs to be used to control the water flow in the valve body, and simplifies the system structure and reduces the production cost.

[0007] To solve the problems in the prior art, the utility model provides a kind of throttling check valve, including valve body and the valve core for controlling water flow, throttling check valve also includes adjusting mechanism and installation filtering mechanism;Adjusting mechanism is arranged at the top of valve body, adjusting mechanism includes rotary adjusting rod, mounting block, displacement clamping block and sheltering flexible plate;Rotary adjusting rod is rotationally arranged in the inside of valve body and is connected with valve core, and the outside of rotary adjusting rod is provided with a plurality of abutment grooves;Mounting block is arranged at the top of valve body and is located at the side of rotary rod;Displacement clamping block is slidably arranged at the top of mounting block, and can be in abutment state with abutment groove when displacement clamping block slides;Sheltering flexible plate has a pair and is arranged at the two sides of displacement clamping block respectively;Installation filtering mechanism is arranged at the water inlet of valve body.

[0008] Preferably, the adjusting mechanism further comprises a limiting rod and a return spring; the limiting rod is arranged in the inside of the mounting block and is in gap cooperation with the displacement clamping block; the return spring is sleeved on the outside of the limiting rod, one end of the return spring is fixedly connected with the mounting block, and the other end of the return spring is fixedly connected with the displacement clamping block.

[0009] Preferably, the adjusting mechanism further comprises a supporting roller and a positioning rod; the top of the mounting block is provided with a mounting groove; the supporting roller has a pair and is rotationally arranged in the mounting groove respectively, and the supporting roller is located below the sheltering flexible plate; the positioning rod has a pair and is arranged at the two sides of the displacement clamping block respectively.

[0010] Preferably, the installation filtering mechanism comprises a positioning installation sleeve and a clamping sleeve; the positioning installation sleeve is arranged at the water inlet of the valve body; the positioning installation sleeve is provided with a first positioning installation groove; the inside of the positioning installation sleeve is provided with a first clamping groove; the clamping sleeve is arranged beside the positioning installation sleeve.

[0011] Preferably, the installation filtering mechanism further comprises a first clamping block; the first clamping block is arranged beside the clamping sleeve, and can abut against the inside of the first clamping groove when the clamping sleeve moves.

[0012] Preferably, the installation filtering mechanism further comprises a filter screen; the filter screen is arranged in the inside of the clamping sleeve; the inside of the clamping sleeve is provided with a displacement groove for abutment of the filter screen, and the displacement groove is in the shape of a ring, and the filter screen can abut in the displacement groove when sliding.

[0013] Preferably, the inside of the clamping sleeve is provided with a second clamping groove and a limiting groove beside the displacement groove; the second clamping groove is arranged in the inside of the clamping sleeve and beside the displacement groove; the limiting groove is arranged in the inside of the clamping sleeve and beside the second clamping groove.

[0014] Preferably, the filter installation mechanism further includes a second locking block; the second locking block is disposed on the side of the filter screen, and the filter screen can be rotated by the second locking block and abutted in the limiting groove.

[0015] The advantages of this utility model compared to the prior art are:

[0016] 1. This utility model, by setting an adjustment mechanism, effectively prevents dust or moisture from entering by shielding the top of the mounting block. It achieves effective control of water flow within the valve body without relying on additional devices such as electric telescopic rods. This not only simplifies the system structure but also significantly reduces production costs and improves overall economy and practicality.

[0017] 2. By setting up support rollers and positioning rods, this utility model ensures that the flexible baffle can flexibly adjust its blocking state according to the position change of the displacement block.

[0018] 3. This utility model, by setting up an installation filter mechanism, allows the snap-fit ​​sleeve to be rotatably installed on the positioning mounting sleeve without the need for threaded installation, and prevents the snap-fit ​​sleeve from detaching from the outside of the positioning mounting sleeve. When the filter screen abuts against the inside of the displacement groove, the user can then rotate the filter screen. During rotation, the filter screen can drive the second snap-fit ​​block through the second snap-fit ​​groove and abut against the inside of the limiting groove. Attached Figure Description

[0019] Figure 1 This is a first-view perspective three-dimensional structural diagram of a throttling check valve according to this utility model.

[0020] Figure 2 This is a front view of the structure of a throttling check valve according to this utility model.

[0021] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of a throttling check valve according to this utility model.

[0022] Figure 4 This is a three-dimensional structural diagram of the installation and filtering mechanism of a throttling check valve according to this utility model.

[0023] Figure 5 yes Figure 3 Enlarged structural diagram at point A in the middle.

[0024] Figure 6 This is a three-dimensional structural diagram of the displacement block of a throttling check valve according to this utility model.

[0025] Figure 7 This is a three-dimensional structural diagram of the positioning and mounting sleeve of a throttling check valve according to this utility model.

[0026] Figure 8 yes Figure 7 Enlarged structural diagram at point B in the middle.

[0027] Figure 9 is a filter screen three-dimensional structure of the throttling check valve.

[0028] Figure 10 is Figure 9 enlarged structure diagram at C in the middle.

[0029] The figure mark is: 1, valve body;2, valve core;3, adjusting mechanism;31, rotating adjusting rod;32, mounting block;33, displacement clamping block;34, shielding flexible plate;35, limiting rod;36, reset spring;37, supporting roller;38, positioning rod;4, install filter mechanism;41, positioning installation sleeve;411, first positioning installation groove;412, first clamping groove;42, clamping sleeve;421, displacement groove;422, second clamping groove;423, limiting groove;43, first clamping block;44, filter screen;45, second clamping block. DETAILED DESCRIPTION

[0030] In order to further understand the characteristics, technical means and specific purposes and functions reached by the utility model, the utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0031] Referring to Figures 1-10 The throttling check valve includes a valve body 1 and a valve core 2 for controlling water flow, and further includes an adjusting mechanism 3 and a filter installation mechanism 4;The adjusting mechanism 3 is arranged at the top of the valve body 1, and the adjusting mechanism 3 includes a rotating adjusting rod 31, a mounting block 32, a displacement clamping block 33 and a shielding flexible plate 34;The rotating adjusting rod 31 is rotationally arranged in the valve body 1 and connected with the valve core 2, and a plurality of abutting grooves are formed in the outer part of the rotating adjusting rod 31;The mounting block 32 is arranged at the top of the valve body 1 and located at one side of the rotating rod;The displacement clamping block 33 is slidingly arranged at the top of the mounting block 32, and can be in abutting state with the abutting grooves when the displacement clamping block 33 slides;The shielding flexible plate 34 has a pair of plates and is arranged at both sides of the displacement clamping block 33 respectively;The filter installation mechanism 4 is arranged at the water inlet of the valve body 1.

[0032] When it is necessary to control the water flow in the valve body 1, first rotate the rotary adjusting rod 31, in the process, the displacement clamp block 33 does not contact the abutting groove opened on the rotary adjusting rod 31, when stopping rotating the rotary adjusting rod 31, the displacement clamp block 33 can slide and abut in the abutting groove, to limit the rotation of the rotary adjusting rod 31, realize the control of the water flow in the valve body 1, and can fine-tune the water flow in the valve body 1, prevent the rotary adjusting rod 31 from rotating freely. The movement of the displacement clamp block 33 will trigger a pair of shielding flexible plates 34 to present a stretching and releasing state, realize the shielding of the top of the mounting block 32, which can effectively prevent dust or water vapor from entering. Without relying on additional devices such as electric telescopic rods, the effective control of the water flow in the valve body 1 can be realized. Not only simplifies the system structure, but also significantly reduces the production cost, improves the overall economy and practicability.

[0033] Referring to Figure 5 As shown, the adjusting mechanism 3 further comprises a limiting rod 35 and a return spring 36; the limiting rod 35 is arranged inside the mounting block 32 and gap-fitted with the displacement clamp block 33; the return spring 36 is sleeved outside the limiting rod 35, one end of the return spring 36 is fixedly connected with the mounting block 32, and the other end of the return spring 36 is fixedly connected with the displacement clamp block 33.

[0034] When it is necessary to rotate the rotary adjusting rod 31 to realize the adjustment of the water flow in the valve body 1, first the user pulls the displacement clamp block 33, so that the displacement clamp block 33 is away from the side of the rotary adjusting rod 31, at this time the rotary adjusting rod 31 can be rotated. When the rotary adjusting rod 31 does not rotate, the return spring 36 releases the pressure and pushes the displacement clamp block 33 to abut in the abutting groove opened on the rotary adjusting rod 31, to realize the limiting and fixing effect of the rotary adjusting rod 31.

[0035] Referring to Figure 4 and Figure 5 As shown, the adjusting mechanism 3 further comprises a supporting roller 37 and a positioning rod 38; the top of the mounting block 32 is provided with a mounting groove; the supporting roller 37 has a pair of and is rotatably arranged in the mounting groove respectively, and the supporting roller 37 is located below the shielding flexible plate 34; the positioning rod 38 has a pair of and is arranged on both sides of the displacement clamp block 33 respectively.

[0036] In the process of moving the displacement clamp block 33, the shielding flexible baffle can be driven to stretch or release along the supporting roller 37 and the positioning rod 38. It is ensured that the shielding flexible baffle can flexibly adjust its shielding state according to the position change of the displacement clamp block 33.

[0037] Referring to Figure 4As shown, the filter installation mechanism 4 includes a positioning installation sleeve 41 and a snap-fit ​​sleeve 42; the positioning installation sleeve 41 is located at the water inlet of the valve body 1; a first positioning installation groove 411 is provided on the positioning installation sleeve 41; a first snap-fit ​​groove 412 is provided inside the positioning installation sleeve 41; the snap-fit ​​sleeve 42 is located on the side of the positioning installation sleeve 41.

[0038] When it is necessary to quickly install the snap-fit ​​sleeve 42 onto the positioning mounting sleeve 41, first slide the snap-fit ​​sleeve 42 and abut it into the first positioning mounting groove 411.

[0039] See Figure 7 and Figure 8 As shown, the filter installation mechanism 4 also includes a first snap-fit ​​block 43; the first snap-fit ​​block 43 is disposed on the side of the snap-fit ​​sleeve 42, and when the snap-fit ​​sleeve 42 moves, it can drive the first snap-fit ​​block 43 to abut against the inside of the first snap-fit ​​groove 412.

[0040] When the snap-fit ​​sleeve 42 abuts against the inside of the first snap-fit ​​groove 412, the user rotates the snap-fit ​​sleeve 42 until the snap-fit ​​sleeve 42 drives the first snap-fit ​​block 43 to abut against the inside of the first snap-fit ​​groove 412. At this time, the snap-fit ​​sleeve 42 can be rotated and installed on the positioning mounting sleeve 41 without the need for threaded installation, and it can prevent the snap-fit ​​sleeve 42 from coming off the outside of the positioning mounting sleeve 41.

[0041] See Figure 9 and Figure 10 As shown, the filter installation mechanism 4 also includes a filter screen 44; the filter screen 44 is disposed inside the snap-fit ​​sleeve 42; the snap-fit ​​sleeve 42 has a displacement groove 421 for the filter screen 44 to abut against, and the displacement groove 421 is in the shape of an annulus, so that the filter screen 44 can abut against the displacement groove 421 when it slides.

[0042] When it is necessary to quickly install the filter screen 44 inside the snap-fit ​​sleeve 42, first slide the filter screen 44 into the displacement groove 421 opened on the snap-fit ​​sleeve 42. At this time, the filter screen 44 can abut against the displacement groove 421.

[0043] See Figure 9 and Figure 10 As shown, the snap-fit ​​sleeve 42 has a second snap-fit ​​groove 422 and a limiting groove 423 located next to the displacement groove 421 inside; the second snap-fit ​​groove 422 is opened inside the snap-fit ​​sleeve 42 and is located next to the displacement groove 421; the limiting groove 423 is opened inside the snap-fit ​​sleeve 42 and is located next to the second snap-fit ​​groove 422.

[0044] Both the limiting groove 423 and the second locking groove 422 are 120-degree arcs, and the diameter of the limiting groove 423 is larger than the diameter of the second locking groove 422.

[0045] See Figure 9 andFigure 10 As shown, the filter mechanism 4 further comprises a second clamping block 45; the second clamping block 45 is arranged beside the filter screen 44, and the filter screen 44 can rotate through the second clamping block 45 and abut against the limiting groove 423.

[0046] When the filter screen 44 abuts against the inside of the displacement groove 421, the user rotates the filter screen 44 again, and the filter screen 44 can drive the second clamping block 45 to pass through the second clamping groove 422 and abut against the inside of the limiting groove 423 when rotating; when disassembling, the user reversely rotates the filter screen 44 until the second clamping block 45 is separated from the inside of the limiting groove 423, and then the filter screen 44 can be quickly disassembled by being pulled out of the clamping sleeve 42.

[0047] When working, in order to realize the adjustment of the water flow in the valve body 1, the rotating adjusting rod 31 needs to be operated. In the initial state, the reset spring 36 pushes the displacement clamping block 33 to abut against the abutting groove of the rotating adjusting rod 31, and the rotating adjusting rod 31 is limited and fixed. When the flow needs to be adjusted, the user pulls the displacement clamping block 33 to make it away from the rotating adjusting rod 31, and at this time, the rotating adjusting rod 31 can be freely rotated. The movement of the displacement clamping block 33 simultaneously drives the shielding flexible baffle to stretch or release along the supporting roller 37 and the positioning rod 38, and flexibly adjusts the shielding state. In order to quickly install the clamping sleeve 42 on the positioning mounting sleeve 41, first, the clamping sleeve 42 is slid and abutted in the first positioning mounting groove 411 until it enters the first clamping groove 412. Then, the clamping sleeve 42 is rotated until the first clamping block 43 abuts against the inside of the first clamping groove 412, and the installation is completed. This process does not need threaded connection, and can effectively prevent the clamping sleeve 42 from separating from the positioning mounting sleeve 41. The filter screen 44 is slidably installed in the displacement groove 421 of the clamping sleeve 42. Then, the filter screen 44 is rotated to drive the second clamping block 45 to pass through the second clamping groove 422 and abut against the inside of the limiting groove 423, wherein the shapes of the limiting groove 423 and the second clamping groove 422 are all one-third of a semicircle, and the diameter of the limiting groove 423 is greater than that of the second clamping groove 422. When disassembling, the filter screen 44 is reversely rotated until the second clamping block 45 is separated from the limiting groove 423, and then the filter screen 44 can be pulled out of the clamping sleeve 42.

[0048] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A throttling check valve comprising a valve body (1) and a valve core (2) for controlling the flow of water, characterized in that, The throttle check valve further comprises an adjusting mechanism (3) and a filter installation mechanism (4); The adjusting mechanism (3) is arranged on the top of the valve body (1), and comprises a rotating adjusting rod (31), a mounting block (32), a displacement clamping block (33) and a shielding flexible plate (34); The rotating adjusting rod (31) is arranged in the interior of the valve body (1) and connected with the valve core (2), and a plurality of abutting grooves are formed on the exterior of the rotating adjusting rod (31); The mounting block (32) is arranged on the top of the valve body (1) and located on one side of the rotating rod; The displacement clamping block (33) is arranged on the top of the mounting block (32) in a sliding manner, and can be in abutting connection with the abutting grooves when the displacement clamping block (33) slides; The shielding flexible plate (34) is arranged on both sides of the displacement clamping block (33) in pairs; The filter installation mechanism (4) is arranged at the water inlet of the valve body (1).

2. A throttling check valve according to claim 1, wherein The adjusting mechanism (3) further comprises a limiting rod (35) and a reset spring (36); the limiting rod (35) is arranged in the interior of the mounting block (32) and in clearance fit with the displacement clamping block (33); the reset spring (36) is sleeved on the exterior of the limiting rod (35), one end of the reset spring (36) is fixedly connected with the mounting block (32), and the other end of the reset spring (36) is fixedly connected with the displacement clamping block (33).

3. A throttling check valve according to claim 2, wherein The adjusting mechanism (3) further comprises a supporting roller (37) and a positioning rod (38); the top of the mounting block (32) is provided with a mounting groove; the supporting roller (37) is arranged in the mounting groove in pairs in a rotating manner, and the supporting roller (37) is located below the shielding flexible plate (34); the positioning rod (38) is arranged on both sides of the displacement clamping block (33) in pairs.

4. The throttling check valve of claim 1, wherein The filter installation mechanism (4) comprises a positioning installation sleeve (41) and a clamping sleeve (42); the positioning installation sleeve (41) is arranged at the water inlet of the valve body (1); the positioning installation sleeve (41) is provided with a first positioning installation groove (411); the interior of the positioning installation sleeve (41) is provided with a first clamping groove (412); the clamping sleeve (42) is arranged beside the positioning installation sleeve (41).

5. A throttling check valve according to claim 4, wherein The filter installation mechanism (4) further comprises a first clamping block (43); the first clamping block (43) is arranged beside the clamping sleeve (42), and can abut against the interior of the first clamping groove (412) when the clamping sleeve (42) moves.

6. A throttling check valve according to claim 4 wherein, The filter installation mechanism (4) further comprises a filter screen (44); the filter screen (44) is arranged in the interior of the clamping sleeve (42); the interior of the clamping sleeve (42) is provided with a displacement groove (421) for abutting the filter screen (44), and the displacement groove (421) is in a circular ring shape, and the filter screen (44) can abut in the displacement groove (421) when sliding.

7. A throttling check valve according to claim 4 wherein, The interior of the clamping sleeve (42) is provided with a second clamping groove (422) beside the displacement groove (421) and a limiting groove (423); the second clamping groove (422) is arranged in the interior of the clamping sleeve (42) and beside the displacement groove (421); the limiting groove (423) is arranged in the interior of the clamping sleeve (42) and beside the second clamping groove (422).

8. A throttling check valve according to claim 7, wherein The installation filtering mechanism (4) further comprises a second clamping block (45); the second clamping block (45) is arranged beside the filter screen (44), and the filter screen (44) can rotate through the second clamping block (45) and abut against the limiting groove (423).

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