Easily assembled and disassembled flow-limiting orifice plate

Abstract

The utility model relates to the technical field of flow-limiting orifice plates, and discloses a flow-limiting orifice plate easy to disassemble and assemble, which comprises a mounting ring, an orifice plate is arranged in the mounting ring, a flow-limiting orifice is arranged on the orifice plate, a limiting mechanism is arranged on the mounting ring, and the limiting mechanism comprises a fixed seat, a guide hole, a guide rod, a push plate and a limiting block. The guide hole is formed in the fixed seat, the guide rod penetrates through the interior of the guide hole, a push plate is fixedly installed at one end of the guide rod, a limiting block is fixedly installed on the push plate, and a spring is connected to the guide rod in a sleeving mode. When the pore plate needs to be detached and replaced, a worker only needs to push the push plate in the direction far away from the circle center of the mounting ring to enable the limiting block to be separated from the surface of the pore plate, at the moment, the pore plate can be directly taken down from the mounting ring, and the pore plate can be conveniently and rapidly detached and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of flow-limiting orifice plates, in particular to an easily disassembled and assembled flow-limiting orifice plate. Background Art

[0002] A flow-limiting orifice plate is a device used for flow control and measurement. It calculates the flow rate by sensing the pressure difference of the fluid flowing through the orifice plate, or is used alone to limit the maximum flow rate in a pipe. In terms of flow measurement, when the properties or flow range of the fluid change, it is necessary to reselect an appropriate flow-limiting orifice plate to ensure the accuracy and stability of flow control. This is because the aperture size, position of the orifice plate, and the thickness of the orifice plate will affect the velocity of the fluid passing through and the magnitude of the pressure drop. Therefore, if the properties or flow range of the fluid change, selecting the wrong orifice plate will lead to a decrease in measurement accuracy.

[0003] According to a porous flow-limiting orifice plate disclosed in Chinese Patent with the publication number "CN208719667U", which belongs to the technical field of flow-limiting orifice plates; the key points of its technical solution are that it includes a plate core, an outer ring body, and a plurality of connecting ring bodies located between the plate core and the outer ring body; the plate core, the outer ring body, and the connecting ring bodies are coaxially arranged; through holes for the fluid to pass through are provided on the plate core, the ring body, and the connecting ring bodies; the plate core, the ring body, and the connecting ring bodies are detachably connected; it solves the problems that the existing porous flow-limiting orifice plate has a small range of flow-limiting and pressure-reducing adjustment for the fluid and a small application range; it can form different gradients of flow-limiting and pressure-reducing through combination and has a wide range of uses. When the above flow-limiting orifice plate needs to be disassembled and replaced, it is necessary to use disassembly and assembly tools to replace the orifice plate. Because it uses threaded connection, and the use environment of the flow-limiting orifice plate is in water, impurities in the water will adhere to the threads, resulting in troublesome disassembly and assembly work. Therefore, an easily disassembled and assembled flow-limiting orifice plate is proposed to solve the above-mentioned problems. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an easily disassembled and assembled flow-limiting orifice plate aiming at the deficiencies in the above-mentioned prior art.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is: an easily disassembled and assembled flow-limiting orifice plate, which includes an installation ring, a orifice plate is arranged inside the installation ring, a flow-limiting hole is opened on the orifice plate, and a limiting mechanism is arranged on the installation ring;

[0006] The limiting mechanism includes a fixed seat, a guide hole, a guide rod, a push plate and a limit block. The guide hole is opened on the fixed seat, the guide rod passes through the inside of the guide hole, one end of the guide rod is fixedly mounted with a push plate, the limit block is fixedly mounted on the push plate, and a spring is sleeved on the guide rod. When the orifice plate needs to be disassembled and replaced, the staff only needs to push the push plate in a direction away from the center of the mounting ring to make the limit block separate from the surface of the orifice plate. At this time, the orifice plate can be directly removed from the mounting ring, which is convenient and quick to disassemble and replace the orifice plate.

[0007] Preferably, the fixing seat is fixedly mounted on the mounting ring, and there are two fixing seats, which are respectively fixedly mounted on the front left side and the front right side of the mounting ring. The setting of the fixing seat can facilitate the limiting effect on the orifice plate.

[0008] Preferably, a mounting groove is provided on the front side of the mounting ring, the orifice plate is placed inside the mounting groove, the left end of the spring abuts against the push plate, and the right end of the spring abuts against the inner side wall of the fixing seat. The setting of the mounting groove can facilitate the installation and positioning of the orifice plate inside the mounting ring.

[0009] Preferably, the mounting ring is provided with three fastening holes, which are evenly spaced on the mounting ring. The provision of the fastening holes allows the mounting ring to be conveniently installed inside the pipe by bolts.

[0010] Preferably, a positioning pin is fixedly connected inside the installation groove, a positioning hole is opened on the orifice plate, and the positioning pin is inserted into the positioning hole. The orifice plate can be positioned by the arrangement of the positioning pin and the positioning hole.

[0011] Preferably, the number of the positioning pins is three, and the three positioning pins are fixedly connected inside the mounting groove at equal intervals. The provision of the three positioning pins can make the orifice plate more stable inside the mounting ring.

[0012] The utility model adopts the above technical solution, which can bring the following beneficial effects:

[0013] 1. The easily disassembled flow-limiting orifice plate operates through the cooperation among the fixing seat, guide hole, guide rod, push plate, limit block and spring. When the orifice plate needs to be disassembled and replaced, the staff only needs to push the push plate in the direction away from the center of the installation ring to make the limit block separate from the surface of the orifice plate. At this time, the orifice plate can be directly removed from the installation ring, which is convenient and quick to disassemble and replace the orifice plate.

[0014] 2. The easily disassembled flow-limiting orifice plate can position the orifice plate by setting the positioning pins and positioning holes, making the orifice plate more stable in the mounting ring, avoiding the problem of shaking, and further improving the practicality of the flow-limiting orifice plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 This is a schematic diagram of the mounting ring structure of the present utility model;

[0017] Figure 3 is Figure 2 a schematic diagram of the structure at position A in

[0018] Figure 4 This is a schematic diagram of the orifice plate structure of the present utility model.

[0019] In the figure: 1, mounting ring; 2, limiting mechanism; 201, fixed seat; 202, guide hole; 203, guide rod; 204, push plate; 205, limiting block; 206, spring; 3, orifice plate; 4, mounting groove; 5, fastening hole; 6, flow-limiting hole; 7, positioning pin; 8, positioning hole. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Please refer to Figures 1-4 , an embodiment of the present utility model is: an easily disassembled and assembled flow-limiting orifice plate, including a mounting ring 1, an orifice plate 3 is arranged inside the mounting ring 1, a flow-limiting hole 6 is opened on the orifice plate 3, and a limiting mechanism 2 is arranged on the mounting ring 1;

[0024] The limiting mechanism 2 includes a fixed seat 201, a guide hole 202, a guide rod 203, a push plate 204 and a limiting block 205. The guide hole 202 is opened on the fixed seat 201. The guide rod 203 penetrates through the inside of the guide hole 202. One end of the guide rod 203 is fixedly installed with the push plate 204. The limiting block 205 is fixedly installed on the push plate 204. A spring 206 is sleeved on the guide rod 203. When it is necessary to disassemble and replace the orifice plate 3, the staff only needs to push the push plate 204 in a direction away from the center of the mounting ring 1 so that the limiting block 205 disengages from the surface of the orifice plate 3. At this time, the orifice plate 3 can be directly removed from the mounting ring 1, which is convenient and fast for disassembling and replacing the orifice plate 3.

[0025] The fixed seat 201 is fixedly installed on the mounting ring 1. The number of the fixed seats 201 is two, and the two fixed seats 201 are respectively fixedly installed on the left side and the right side of the front surface of the mounting ring 1. The setting of the fixed seat 201 can facilitate the limiting function of the orifice plate 3.

[0026] An installation groove 4 is opened on the front surface of the mounting ring 1. The orifice plate 3 is placed inside the installation groove 4. The left end of the spring 206 abuts against the push plate 204, and the right end of the spring 206 abuts against the inner side wall of the fixed seat 201. The setting of the installation groove 4 can facilitate the installation and limitation of the orifice plate 3 inside the mounting ring 1.

[0027] Tightening holes 5 are opened on the mounting ring 1. The number of the tightening holes 5 is three, and the three tightening holes 5 are equally spaced on the mounting ring 1. The setting of the tightening holes 5 can facilitate the installation of the mounting ring 1 inside the pipeline through bolts.

[0028] Working principle: When it is necessary to disassemble and replace the orifice plate 3, the staff only needs to push the push plate 204 in a direction away from the center of the mounting ring 1 so that the limiting block 205 disengages from the surface of the orifice plate 3. At this time, the orifice plate 3 can be directly removed from the mounting ring 1, which is convenient and fast for disassembling the orifice plate 3. When it is necessary to install the orifice plate 3, after the limiting block 205 is received into the fixed seat 201, the orifice plate 3 is placed into the installation groove 4, and then the push plate 204 is released, so that the limiting block 205 moves to the surface of the orifice plate 3 under the action of the spring 206 to limit it.

[0029] Please refer to Figures 1-4 , on the basis of the above embodiment, in another embodiment of the present invention, a positioning pin 7 is fixedly connected inside the installation groove 4. A positioning hole 8 is opened on the orifice plate 3. The positioning pin 7 is inserted into the positioning hole 8. The setting of the positioning pin 7 and the positioning hole 8 can play a positioning role for the orifice plate 3.

[0030] The number of the positioning pins 7 is three, and the three positioning pins 7 are equally spaced and fixedly connected inside the installation groove 4. The setting of the three positioning pins 7 can make the orifice plate 3 more stable inside the mounting ring 1.

[0031] Working principle: The positioning pin 7 and the positioning hole 8 are provided to position the orifice plate 3, making the orifice plate 3 more stable within the mounting ring 1 and avoiding the problem of shaking, further improving the practicality of the flow-limiting orifice plate.

[0032] The present utility model provides an easily disassembled and assembled flow-limiting orifice plate. There are many methods and ways to specifically implement this technical solution. The above is only the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. Each component not clearly defined in this embodiment can be implemented with the existing technology.

Claims

1. An easily disassembled flow limiting orifice plate, comprising a mounting ring (1), characterized in that: An orifice plate (3) is arranged inside the mounting ring (1), a flow limiting hole (6) is provided on the orifice plate (3), and a limiting mechanism (2) is arranged on the mounting ring (1); The limiting mechanism (2) comprises a fixed seat (201), a guide hole (202), a guide rod (203), a push plate (204) and a limit block (205); the guide hole (202) is provided on the fixed seat (201); the guide rod (203) passes through the inside of the guide hole (202); a push plate (204) is fixedly mounted on one end of the guide rod (203); a limit block (205) is fixedly mounted on the push plate (204); and a spring (206) is sleeved on the guide rod (203).

2. The easily detachable flow limiting orifice plate according to claim 1, characterized in that: The fixing seat (201) is fixedly mounted on the mounting ring (1), and there are two fixing seats (201), wherein the two fixing seats (201) are respectively fixedly mounted on the left side and the right side of the front face of the mounting ring (1).

3. The easily detachable flow limiting orifice plate according to claim 1, characterized in that: The front side of the mounting ring (1) is provided with a mounting groove (4), the orifice plate (3) is placed inside the mounting groove (4), the left end of the spring (206) abuts against the push plate (204), and the right end of the spring (206) abuts against the inner side wall of the fixing seat (201).

4. The easily detachable flow limiting orifice plate according to claim 1, characterized in that: The mounting ring (1) is provided with fastening holes (5), the number of the fastening holes (5) is three, and the three fastening holes (5) are arranged on the mounting ring (1) at equal intervals.

5. The easily detachable flow limiting orifice plate according to claim 3, characterized in that: A positioning pin (7) is fixedly connected inside the installation groove (4), a positioning hole (8) is opened on the orifice plate (3), and the positioning pin (7) is inserted into the inside of the positioning hole (8).

6. The easily detachable flow limiting orifice plate according to claim 5, characterized in that: The number of the positioning pins (7) is three, and the three positioning pins (7) are fixedly connected inside the installation groove (4) at equal intervals.

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