Waterproof throttling pressure reducing device

Abstract

The utility model relates to the technical field of throttling pressure reducing devices capable of preventing water attack, and discloses a throttling pressure reducing device capable of preventing water attack, which comprises an upper pipeline and a middle pipeline, a throttling assembly is arranged in the upper pipeline, the throttling assembly comprises a throttling disc, a first connecting column, a connecting cylinder, a pore plate, a sealing ring and a second bolt. When water flows into the upper pipeline, a worker twists a handle, the handle drives a connecting rod to rotate, a throttling disc rotates along with the handle, the water flow in the upper pipeline is primarily throttled, the water flow can be rapidly adjusted to a certain degree, and different working condition requirements are met; the orifice plate can further conduct throttling operation on water flow, in addition, a worker can further replace the orifice plate by twisting a first bolt, and the orifice plate can be replaced by orifice plates of different sizes according to actual requirements, so that the throttling effect is achieved, or stains on the orifice plate are cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of throttling and decompression devices for preventing water hammer, in particular to a throttling and decompression device for preventing water hammer. Background Art

[0002] Fluid conveying systems are widely present in modern industry and life. However, in these systems, water hammer often causes serious damage to pipelines and equipment and poses safety hazards. Water hammer refers to the phenomenon in which the fluid flow rate in the pipeline suddenly changes due to reasons such as the sudden closing of valves and the start and stop of pumps, resulting in a sharp increase and decrease in pressure. This pressure fluctuation can have a huge impact on pipelines, valves, pumps and other equipment, and may cause problems such as pipeline rupture, loose joints, and equipment damage.

[0003] Existing anti-water hammer throttling and pressure reducing devices may be difficult to effectively adjust the size of the water flow, and there are deficiencies in replacing orifice plates of different sizes or cleaning stains on the orifice plates, which may lead to poor throttling effects during actual use and increase the maintenance cost and time of the orifice plates. To this end, we propose a throttling and pressure reducing device that prevents water hammer. Utility Model Content

[0004] The purpose of the present utility model is to provide a throttling and pressure reducing device that is anti-water hammer, so as to solve the problems raised in the above-mentioned background technology that it is difficult to make effective basic adjustments to the size of the water flow, and there are deficiencies in replacing orifice plates of different sizes or cleaning stains on the orifice plates, which may lead to poor throttling effects during actual use and increase the maintenance cost and time of the orifice plates.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a throttling and pressure reducing device for preventing water hammer, comprising an upper pipe and a middle pipe, a throttling assembly being arranged inside the upper pipe, the throttling assembly comprising a throttling disk, a first connecting column, a connecting tube, an orifice plate, a sealing ring and a second bolt, the throttling disk being connected to a handle via a connecting rod, the first connecting column being connected to a second connecting column via a first bolt, a connecting block being fixedly connected to the top of the connecting tube, a plurality of groups of circumferentially distributed plug rods being fixedly installed on the front side of the middle pipe, a plurality of groups of circumferentially distributed plug holes being provided on the back sides of the sealing ring and the upper pipe, the plug rods being inserted into the inside of the plug holes.

[0006] As a preferred solution, a filter is provided in the middle of the middle pipe, and a lower pipe is provided at the rear end of the middle pipe.

[0007] As a preferred solution, the outer wall of the throttle disc fits into the inner wall of the upper pipe, the connecting rod is fixedly mounted on the upper end of the throttle disc, the handle is fixedly mounted on the end of the connecting rod away from the throttle disc, and the first connecting column is fixedly mounted on the upper surface of the upper pipe.

[0008] As a preferred solution, the connecting tube is fixedly installed on the top of the second connecting column, the bottom of the handle fits into the top of the connecting block, the outer wall of the orifice plate is fixedly connected to the inner wall of the sealing ring, and the upper pipe and the middle pipe are threadedly connected by a second bolt.

[0009] As a preferred solution, a decompression assembly is provided inside the lower pipe, and the decompression assembly includes a buffer plate and a third bolt. The back of the buffer plate is fixedly connected to a top plate, and the back of the top plate is fixedly connected to a buffer rod.

[0010] As a preferred solution, the back of the buffer rod is fixedly connected to a chassis, the chassis is fixedly installed on the inner wall of the lower pipe, the outer wall of the buffer rod is sleeved with a spring, and the middle pipe and the lower pipe are threadedly connected by a third bolt.

[0011] The technical effects and advantages of this utility model are:

[0012] 1. Through the throttling assembly, when water flows into the upper pipe, the staff can twist the handle to drive the connecting rod to rotate, and then the throttling disk rotates accordingly, thereby achieving a preliminary throttling effect on the water flow inside the upper pipe. The size of the water flow can be quickly adjusted to a certain extent to adapt to different working conditions. When the water flows to the orifice plate, the orifice plate will further throttle the water flow. In addition, the staff can also replace the orifice plate by twisting the first bolt. It can be replaced with orifice plates of different sizes according to actual needs to achieve the best throttling effect or clean stains on the orifice plate.

[0013] 2. Through the set pressure reducing assembly, when the water flows to the position between the middle pipe and the lower pipe, the buffer plate will transfer the impact force to the top plate under the impact of the water flow. At this time, the buffer rod and the spring will extend and retract, and then rebound and reset. Through this process, the impact force of the water flow can be effectively reduced, the risk of pipeline damage is reduced, and the service life of the pipeline is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall partial structure of the utility model;

[0016] Figure 3It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 4 This is a partial structural diagram of the throttling component of the utility model;

[0018] Figure 5 This is a schematic diagram of the decompression assembly of the present utility model;

[0019] Figure 6 for Figure 5 Enlarged schematic diagram of point A in the middle.

[0020] In the figure: 1. Upper pipe; 2. Throttle assembly; 201. Throttle disk; 202. Connecting rod; 203. Handle; 204. First connecting column; 205. Second connecting column; 206. First bolt; 207. Connecting cylinder; 208. Connecting block; 209. Orifice plate; 210. Sealing ring; 211. Insert rod; 212. Second bolt; 213. Socket; 3. Pressure reducing assembly; 301. Buffer disk; 302. Top plate; 303. Buffer rod; 304. Spring; 305. Base plate; 306. Third bolt; 4. Middle pipe; 5. Lower pipe; 6. Filter. DETAILED DESCRIPTION

[0021] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0022] Example 1:

[0023] Please see the attached Figure 1 - Attachment Figure 4A throttling and pressure reducing device for preventing water hammer comprises an upper pipe 1 and a middle pipe 4. A throttling assembly 2 is arranged inside the upper pipe 1. The throttling assembly 2 comprises a throttling disc 201, a first connecting column 204, a connecting tube 207, an orifice plate 209, a sealing ring 210 and a second bolt 212. The throttling disc 201 is connected to a handle 203 through a connecting rod 202. The first connecting column 204 is connected to the second connecting column 205 through a first bolt 206. The top of the connecting tube 207 is fixedly connected to a connecting block 208. A plurality of groups of circumferentially distributed plug rods 211 are fixedly installed on the front of the middle pipe 4. A plurality of groups of circumferentially distributed plug holes 213 are provided on the back of the sealing ring 210 and the upper pipe 1. The plug rods 21 1 is inserted into the interior of the socket 213, a filter 6 is provided at the middle interior of the middle pipe 4, a lower pipe 5 is provided at the rear end of the middle pipe 4, the outer wall of the throttle disc 201 is fitted with the inner wall of the upper pipe 1, the connecting rod 202 is fixedly mounted on the upper end of the throttle disc 201, the handle 203 is fixedly mounted on the end of the connecting rod 202 away from the throttle disc 201, the first connecting column 204 is fixedly mounted on the upper surface of the upper pipe 1, the connecting cylinder 207 is fixedly mounted on the top of the second connecting column 205, the bottom of the handle 203 is fitted with the top of the connecting block 208, the outer wall of the orifice plate 209 is fixedly connected to the inner wall of the sealing ring 210, and the upper pipe 1 and the middle pipe 4 are threadedly connected by the second bolt 212.

[0024] The interiors of the first connecting column 204, the second connecting column 205, the connecting tube 207 and the connecting block 208 are all hollowed out to accommodate the rotation of the connecting rod 202 therein, providing rotation space for the connecting rod 202 and ensuring that the connecting rod 202 can rotate smoothly, thereby accurately adjusting the angle of the throttle disk 201. A circle of soft silicone rubber is provided on the outer wall of the throttle disk 201, which can facilitate its rotation and throttling at the inner wall of the upper pipe 1 on the one hand, and can also play a certain sealing role on the other hand.

[0025] Specifically, through the throttling component 2, when water flows into the upper pipe 1, the staff can twist the handle 203 to make the handle 203 drive the connecting rod 202 to rotate, and then the throttling disk 201 also rotates, thereby having a preliminary throttling effect on the water flow inside the upper pipe 1, and can quickly adjust the size of the water flow to a certain extent to adapt to different working conditions. When the water flows to the orifice plate 209, the orifice plate 209 will further throttle the water flow. In addition, the staff can also replace the orifice plate 209 by twisting the first bolt 206. It can be replaced with orifice plates 209 of different sizes according to actual needs, so as to achieve the best throttling effect, or clean the stains on the orifice plate 209.

[0026] Example 2:

[0027] Please see the attached Figure 1, Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 5 And attached Figure 6 , and on the basis of Example 1, it is further obtained that a decompression assembly 3 is provided inside the lower pipe 5, the decompression assembly 3 includes a buffer plate 301 and a third bolt 306, the back of the buffer plate 301 is fixedly connected to the top plate 302, the back of the top plate 302 is fixedly connected to the buffer rod 303, the back of the buffer rod 303 is fixedly connected to the chassis 305, the chassis 305 is fixedly installed on the inner wall of the lower pipe 5, the outer wall of the buffer rod 303 is provided with a spring 304, and the middle pipe 4 and the lower pipe 5 are threadedly connected by the third bolt 306.

[0028] After the buffer rod 303 and the spring 304 extend and retract, the buffer disk 301 will also reset as the spring 304 rebounds. In this process, the buffer disk 301 assists the spring 304 in rebounding. When the spring 304 rebounds, the buffer disk 301 will also return to its original position under the action of the spring 304.

[0029] Specifically, through the provided pressure reducing assembly 3, when the water flows to the position between the middle pipe 4 and the lower pipe 5, the buffer plate 301 will transfer the impact force to the top plate 302 under the impact of the water flow. At this time, the buffer rod 303 and the spring 304 will perform a telescopic movement, and then rebound and reset. Through this process, the impact force of the water flow can be effectively reduced, the risk of pipeline damage is reduced, and the service life of the pipeline is extended.

[0030] Working principle of the utility model: The utility model is a throttling and pressure reducing device for preventing water shock. First, after the staff connects the pressure reducing device to the pipeline, if water flows to the upper pipeline 1, the staff can manually twist the handle 203, and the handle 203 will drive the connecting rod 202 to rotate, thereby adjusting the angle of the throttling disk 201 inside the upper pipeline 1, thereby performing preliminary throttling of the water flow. Then, the water flow will flow to the orifice plate 209, and the orifice plate 209 will further throttle the water flow. In addition, the staff can twist the second bolt 212 to connect the orifice plate 209 with the orifice plate 209. The orifice plate 209 fixedly connected to the sealing ring 210 is taken out and the orifice plate 209 of different sizes is replaced or the stains on it are cleaned. Conversely, the operation is the same when reinstalling. Secondly, when the water flows to the position between the middle pipe 4 and the lower pipe 5, the internal buffer plate 301 will first bear the impact force brought by the water flow, and then the buffer plate 301 will transfer the impact force to the top plate 302, then the buffer rod 303 and the spring 304 will perform a telescopic action, and then rebound and reset, finally, the water flows to the lower pipe 5, and then flows into other pipes.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A throttling and pressure reducing device for preventing water hammer, comprising an upper pipe (1) and a middle pipe (4), characterized in that: A throttling assembly (2) is provided inside the upper pipe (1), and the throttling assembly (2) comprises a throttling disc (201), a first connecting column (204), a connecting tube (207), an orifice plate (209), a sealing ring (210), and a second bolt (212). The throttling disc (201) is connected to a handle (203) via a connecting rod (202), the first connecting column (204) is connected to a second connecting column (205) via a first bolt (206), and a connecting block (208) is fixedly connected to the top of the connecting tube (207). A plurality of groups of circumferentially distributed plug rods (211) are fixedly installed on the front of the middle pipe (4), and a plurality of groups of circumferentially distributed plug holes (213) are provided on the back of the sealing ring (210) and the upper pipe (1), and the plug rods (211) are plugged into the inside of the plug holes (213).

2. The throttling and pressure reducing device for preventing water hammer according to claim 1, characterized in that: A filter (6) is provided in the middle of the middle pipe (4), and a lower pipe (5) is provided at the rear end of the middle pipe (4).

3. The throttling and pressure reducing device for preventing water hammer according to claim 2, characterized in that: The outer wall of the throttle disc (201) fits into the inner wall of the upper pipe (1); the connecting rod (202) is fixedly mounted on the upper end of the throttle disc (201); the handle (203) is fixedly mounted on the end of the connecting rod (202) away from the throttle disc (201); and the first connecting column (204) is fixedly mounted on the upper surface of the upper pipe (1).

4. The throttling and pressure reducing device for preventing water hammer according to claim 3, characterized in that: The connecting tube (207) is fixedly mounted on the top of the second connecting column (205), the bottom of the handle (203) is in contact with the top of the connecting block (208), the outer wall of the orifice plate (209) is fixedly connected to the inner wall of the sealing ring (210), and the upper pipe (1) and the middle pipe (4) are threadedly connected via a second bolt (212).

5. The throttling and pressure reducing device for preventing water hammer according to claim 4, characterized in that: A decompression assembly (3) is provided inside the lower pipe (5), and the decompression assembly (3) comprises a buffer plate (301) and a third bolt (306). The back of the buffer plate (301) is fixedly connected to a top plate (302), and the back of the top plate (302) is fixedly connected to a buffer rod (303).

6. The throttling and pressure reducing device for preventing water hammer according to claim 5, characterized in that: The back of the buffer rod (303) is fixedly connected to a chassis (305), and the chassis (305) is fixedly installed on the inner wall of the lower pipe (5). The outer wall of the buffer rod (303) is sleeved with a spring (304), and the middle pipe (4) and the lower pipe (5) are threadedly connected via a third bolt (306).

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