A flow meter and flow control device for urban sewage pipeline

Abstract

The present invention discloses an urban pipeline sewage flow meter and flow control device, comprising a device main body fixedly connected between a sewage pipe body, a sewage transmission pipe for draining sewage is arranged in the sewage pipe body, and a flow measuring tube connected in series to the sewage transmission pipe is correspondingly arranged in the device main body, a measuring chute is arranged in the upper inner wall of the flow measuring tube, a chute is arranged in communication with the lower inner wall of the measuring chute and the flow measuring tube, an isolating sleeve which is rotatably arranged in the measuring chute and is relatively rotatable to the left and right, a through measuring slot is arranged penetrating the left and right of the isolating sleeve, and a penetrating pipeline chute is arranged on the isolating sleeve. This example aims to design an urban pipeline sewage flow meter and flow control device which can measure the sewage flow in a sewage transmission pipe of any aperture and control the sewage flow according to demand.

Description

Technical Field

[0001] The invention relates to the technical field of sewage pipe control, and in particular to an urban pipe sewage flow meter and a flow control device. Background Art

[0002] With the increase in population density, a large amount of domestic and industrial sewage is discharged every day in urban communities. In order to ensure the information collection of downstream sewage treatment plants and the control of sewage discharge, it is necessary to monitor the flow of sewage during its circulation and adjust the flow size when necessary. The current flow device can only measure when it is in a full flow state, and the size of the measuring device is consistent with the pipe aperture. If the flow is measured in a sewage diversion pipe with a larger aperture, a large measuring meter is required for measurement, which is inconvenient. When the flow needs to be regulated, a flow control switch needs to be installed. Therefore, this example aims to design an urban pipeline sewage flow meter and flow control device that can measure the sewage flow in sewage transmission pipes of any aperture and control the sewage flow size according to demand. Summary of the invention

[0003] In order to solve the above problems, this example designs an urban sewage pipeline flow meter and flow control device, which includes a device body fixedly connected between sewage pipe bodies, a sewage transmission pipe for diverting sewage is provided in the sewage pipe body, and a flow measuring pipe connected in series to the sewage transmission pipe is provided in the device body;

[0004] A measuring slot is provided in the upper inner wall of the flow measuring tube, a slot is provided in communication with the lower inner wall of the measuring slot and the flow measuring tube, an isolating sleeve is rotatably provided in the measuring slot, which is opposed to each other on the left and right and can rotate relatively, a through measuring slot is respectively passed through the isolating sleeve on the left and right, a through pipeline slot is provided on the isolating sleeve, a fixing column is fixedly provided between the left and right inner walls of the measuring slot and crosses the through measuring slot, a measuring push block is slidably provided in the through measuring slot and is threadedly connected to the fixing column, a connecting blocking plate is slidably provided in the slot, and a connecting block which can slide in the pipeline slot is fixedly connected between the upper end surface of the connecting blocking plate and the measuring push block;

[0005] A guide rail is arranged on the inner side wall of the through-measurement slot, and the guide rail is composed of two sections of straight rail slide grooves and sections of curved rails. A guide block that can slide in the guide rail is fixedly arranged on the rear end surface of the measurement push block. The sliding of the guide block can drive the isolation sleeve to rotate and thus facilitate the pipeline slide groove to rotate to the lower side to facilitate the passage of the connection block, while the through-measurement slot space located on the left side of the measurement push block is in a state of being separated from the flow tube;

[0006] A flow rate measuring sensor is fixedly arranged on the right inner wall of the measuring chute, and a reaction force spring sleeved on the fixed column is fixedly arranged between the flow rate measuring sensor and the measuring push block;

[0007] A sleeve column is fixedly provided on the lower end surface of the connecting blocking plate, a circular sleeve block is arranged outside the sleeve column, and a resistance plate is fixedly provided on the circular sleeve block. The impact of sewage from right to left in the flow measuring tube on the resistance plate can drive the measuring push block to move to the right and compress the reaction force spring, thereby transmitting the pressure to the flow rate measuring sensor. The thrust of the sewage in the flow measuring tube on the circular sleeve block can be measured by the flow rate measuring sensor, and the flow rate of the sewage in the flow measuring tube can be measured by comparison, thereby judging the sewage flow rate flowing through the flow measuring tube in unit time. A swing controller assembly is arranged between the sleeve column and the circular sleeve block, and the resistance plate can be driven to rotate relative to the sleeve column by the swing controller assembly, thereby adjusting the flow rate in the flow measuring tube.

[0008] Preferably: the guide block is located on the left side of the connecting block, so that after the guide block slides into the guide rail and drives the isolation sleeve to rotate so that the pipe chute turns to the lower side, the connecting block can easily slide into the corresponding pipe chute, and the length from the connection part between the connection blocking plate and the connecting block to the left end face of the connecting block is longer than the length of the pipe chute in the single section of the isolation sleeve.

[0009] Preferably: the swing controller assembly includes a driving slide groove arranged in the sleeve column, an adjusting motor is fixedly arranged on the upper inner wall of the driving slide groove, the lower end of the adjusting motor is dynamically connected to a threaded rod that can rotate in the driving slide groove, a push block that is slidably arranged in the driving slide groove and is sleeved on the threaded rod and slidably connected to the threaded rod, and a push spring is fixedly connected between the lower end surface of the push block and the lower inner wall of the driving slide groove;

[0010] A threaded push block threadably connected to the threaded rod is disposed on the upper side of the push block and is located in the driving slide groove, and a groove opening upward and engageable with the lower end of the threaded push block is disposed in the upper end surface of the push spring;

[0011] A through-slot is provided on the right inner wall of the driving slot, and a trumpet-shaped swing range adjustment slot is provided on the inner wall of the circular sleeve block, which is opposite to the through-slot and opens toward one side of the through-slot. An adjustment block with one end extending through the through-slot and into the swing range adjustment slot is fixedly provided on the right end surface of the push block, and the rotation range of the circular sleeve block can be adjusted by lifting and lowering the adjustment block.

[0012] A reset component capable of resetting the rotation angle of the resistance plate and the circular sleeve block is arranged in the sleeve column, and the reset component uses the impact of the water flow in the flow measuring tube as power to drive the circular sleeve block and the resistance plate to reset;

[0013] The regulating motor rotates to drive the push block down, thereby driving the corresponding swing range regulating slot to descend, thereby adjusting the swing angle of the circular sleeve block, and can drive the resistance plate to deflect under the impact of water flow, and maintain the deflection angle under the action of water pressure.

[0014] Preferably, the length from the rear end of the resistance plate to the rotation axis of the circular sleeve block is greater than the length from the front end of the resistance plate to the rotation axis of the circular sleeve block, so that when the water flow pressure is deflected, the resistance plate can be rotated to adjust the water flow rate, and the rotation angle of the resistance plate is controlled by the lifting height of the adjustment block in the swing range adjustment slot.

[0015] Preferably: it comprises a rotating groove arranged in the inner wall of the lower side of the driving slide groove, a rotating round block is rotatably arranged in the rotating groove, a torsion spring is fixedly arranged between the rotating round block and the inner wall of the rotating groove, and the lower end of the threaded rod extends into the rotating groove and is connected to the rotating round block through a ratchet;

[0016] The rotating circular block is provided with a notch groove;

[0017] The resistance plate portion at the front side is provided with a receiving groove opening forward, a push groove is provided between the receiving groove and the rotating groove, a push rod is slidably provided in the push groove, the front end of the push rod extends into the receiving groove and is fixedly connected with a blocked plate slidable in the receiving groove, a return spring is fixedly connected between the rear end surface of the blocked plate and the rear inner wall of the receiving groove, the rear end of the push rod extends through the circular sleeve block and the sleeve column and extends into the notched groove, and a rotation space is provided in the sleeve column to facilitate the movement of the push rod;

[0018] When the threaded rod rotates clockwise, the threaded rod does not drive the rotating round block to rotate. When the threaded rod rotates clockwise, the rotating round block is driven to rotate counterclockwise by the ratchet, and then the push rod is pushed to slide through the inner wall of the rotating round block and the obstructed plate is pushed out of the storage groove, so that the resistance plate is obstructed and biased to the front side as a whole. Then, driven by the water flow, the resistance plate swings in the opposite direction and is adjusted to a ninety-degree angle between the resistance plate and the water flow. At this time, under the restriction of the inner wall of the swing range adjustment groove and the adjustment block, the resistance plate is in the maximum angle of attack, that is, the maximum flow resistance state.

[0019] Preferably: a grating is installed on the inner wall of the sewage transmission pipe, and a garbage cleaning sealing port is provided on the upper inner wall of the sewage transmission pipe at the upper end of the grating, the solid garbage in the pipe can be blocked by the grating, and the garbage can be flushed to the garbage cleaning sealing port by the inclined installation of the grating, and the solid garbage can be taken out by opening the garbage cleaning sealing port.

[0020] Preferably, a beam plate is rotatably provided on the right end surface of the resistance plate, and the beam plate can reduce turbulence generated when water flows through the resistance plate.

[0021] Preferably: a liquid level gauge is arranged on the left end face of the resistance plate, by which the liquid level height in the flow measuring tube when it is not in a full flow state can be measured, and then the flow cross-sectional area can be measured according to the liquid level height, and then the flow rate in the not full flow state can be measured.

[0022] Beneficial effects: When in use, the device can adjust the size of the resistance plate according to demand, so the device can be installed in a sewage pipe with a larger diameter span, and has a wide range of use. The device can be used to more accurately measure the flow in the pipe, and when it is necessary to adjust the sewage flow in the pipe, the effective flow resistance area of ​​the resistance plate can be adjusted. It has a simple structure and rich functions, and has great advantages over other flow meters and interception switches on the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] For ease of explanation, the present invention is described in detail with reference to the following specific embodiments and accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of an urban sewage pipe flow meter and flow control device of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the connection between the measuring push block and the circular sleeve block;

[0026] Figure 3 It is a schematic diagram of the isolation casing structure;

[0027] Figure 4is a schematic diagram of the structure of the swing controller assembly;

[0028] Figure 5 is a schematic diagram of the structure of the swing controller assembly;

[0029] Figure 6 is a schematic diagram of a swing controller assembly;

[0030] Figure 7 It is a schematic diagram of the expansion of the swing range adjustment slot. DETAILED DESCRIPTION

[0031] Combine the following Figures 1 to 7 The present invention is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are Figure 1 The up-down, left-right, front-back directions of the projection relationship itself are consistent.

[0032] The present invention relates to a flow meter and flow control device for urban sewage pipelines. The present invention will be further described below in conjunction with the accompanying drawings of the present invention:

[0033] The present invention relates to a flow meter and flow control device for urban sewage pipes, as shown in the attached Figure 1 -Attached Figure 7 The pipeline sewage flow meter and flow control device shown in the figure comprises a device body 111 fixedly connected between the sewage pipe body 101, the sewage pipe body 101 is provided with a sewage transmission pipe 102 for draining sewage, and the device body 111 is provided with a flow meter 107 connected in series with the sewage transmission pipe 102;

[0034] A measuring chute 112 is provided in the upper inner wall of the flow measuring tube 107, a chute 121 is provided in the lower inner wall of the measuring chute 112 and is connected to the flow measuring tube 107, an isolating sleeve 113 is rotatably provided in the measuring chute 112, which is opposed to each other and can rotate relatively, and a through measuring groove 115 is respectively provided in the isolating sleeve 113, and a through pipeline chute 122 is provided on the isolating sleeve 113, and a through measuring groove 115 is provided in the measuring chute 112. A fixed column 118 is fixedly arranged between the left and right inner walls of the measuring chute 112 and crosses the through measuring chute 115. A measuring push block 116 threadedly connected to the fixed column 118 is slidably arranged in the through measuring chute 115. A connecting blocking plate 127 is slidably arranged in the chute 121. A connecting block 123 slidably arranged in the pipeline chute 122 is fixedly connected between the upper end surface of the connecting blocking plate 127 and the measuring push block 116.

[0035] A guide rail 135 is arranged on the inner side wall of the through-measurement slot 115, and the guide rail 135 is composed of two sections of straight rail slide grooves and sections of curved rails. A guide block 136 that can slide in the guide rail 135 is fixedly arranged on the rear end surface of the measurement push block 116. The sliding of the guide block 136 can drive the isolation sleeve 113 to rotate and thus facilitate the pipeline slide groove 122 to rotate to the lower side to facilitate the passage of the connection block 123, while the through-measurement slot 115 space on the left side of the measurement push block 116 is in a state of being separated from the flow tube 107.

[0036] A flow rate measuring sensor 119 is fixedly arranged on the right inner wall of the measuring chute 112, and a reaction force spring 117 sleeved on the fixing column 118 is fixedly arranged between the flow rate measuring sensor 119 and the measuring push block 116;

[0037] A sleeve column 137 is fixedly provided on the lower end surface of the connecting blocking plate 127, and a circular sleeve block 124 is arranged outside the sleeve column 137. A resistance plate 152 is fixedly provided on the circular sleeve block 124. The impact of the sewage from right to left in the flow measuring tube 107 on the resistance plate 152 can drive the measuring push block 116 to move to the right and compress the reaction force spring 117, thereby transmitting the pressure to the flow rate measuring sensor 119. The flow rate measuring sensor 119 can measure the thrust of the sewage in the flow measuring tube 107 on the circular sleeve block 124 and measure the flow rate of the sewage in the flow measuring tube 107 by comparison, thereby judging the sewage flow rate flowing through the flow measuring tube 107 per unit time. A swing controller component is arranged between the sleeve column 137 and the circular sleeve block 124, and the resistance plate 152 can be driven to rotate relative to the sleeve column 137 by the swing controller component, thereby adjusting the flow rate in the flow measuring tube 107.

[0038] Advantageously, the guide block 136 is located on the left side of the connecting block 123, so that after the guide block 136 slides into the guide rail 135 and drives the isolation sleeve 113 to rotate so that the pipe chute 122 turns to the lower side, the connecting block 123 can easily slide into the corresponding pipe chute 122, and the length from the connection portion between the connection blocking plate 127 and the connecting block 123 to the left end face of the connecting block 123 is longer than the length of the pipe chute 122 in the single section of the isolation sleeve 113.

[0039] Beneficial, such as Figure 1 To Attachment Figure 7The swing controller assembly shown in the figure comprises a driving slide 143 arranged in the sleeve 137, an adjusting motor 138 is fixedly arranged on the inner wall of the driving slide 143, the lower end of the adjusting motor 138 is connected to a threaded rod 145 which can rotate in the driving slide 143, a push block 142 which is slidably arranged in the driving slide 143 and is sleeved on the threaded rod 145 and slidably connected to the threaded rod 145, and a push spring 144 is fixedly connected between the lower end surface of the push block 142 and the lower inner wall of the driving slide 143;

[0040] A threaded push block 139 threadably connected to the threaded rod 145 is slidably disposed on the upper side of the push block 142 and located in the driving slide groove 143. A groove 141 opening upward and capable of being engaged with the lower end of the threaded push block 139 is disposed in the upper end surface of the push spring 144.

[0041] A through slot 148 is provided on the right inner wall of the driving slot 143, and a trumpet-shaped swing range adjustment slot 147 is provided on the inner wall of the circular sleeve 124, which is opposite to the through slot 148 and opens toward one side of the through slot 148. An adjustment block 146 is fixedly provided on the right end surface of the push block 142, and one end of the adjustment block 146 extends through the through slot 148 and extends into the swing range adjustment slot 147. The rotation range of the circular sleeve 124 can be adjusted by lifting and lowering the adjustment block 146.

[0042] The sleeve column 137 is provided with a reset component capable of resetting the rotation angle of the resistance plate 152 and the circular sleeve block 124. The reset component uses the impact of the water flow in the flow tube 107 as a power to drive the circular sleeve block 124 and the resistance plate 152 to reset.

[0043] The adjusting motor 138 rotates to drive the push block 142 downward, thereby driving the corresponding swing range adjusting slot 147 downward, thereby adjusting the swing angle of the circular sleeve 124, and driving the resistance plate 152 to deflect under the impact of water flow, and maintaining the deflection angle under the action of water pressure.

[0044] Advantageously, the length from the rear end of the resistance plate 152 to the rotation axis of the circular sleeve 124 is greater than the length from the front end of the resistance plate 152 to the rotation axis of the circular sleeve 124, thereby facilitating the rotation of the resistance plate 152 and thereby adjusting the water flow rate when the water flow pressure is deflected. The rotation angle of the resistance plate 152 is controlled by the lifting height of the adjustment block 146 within the swing range adjustment slot 147.

[0045] Beneficial, such as Figure 4 To Attachment Figure 6 The reset assembly shown in the figure comprises a rotating groove 149 arranged in the inner wall of the lower side of the driving slide groove 143, a rotating round block 151 is rotatably arranged in the rotating groove 149, a torsion spring is fixedly arranged between the rotating round block 151 and the inner wall of the rotating groove 149, and the lower end of the threaded rod 145 extends into the rotating groove 149 and is connected to the rotating round block 151 through a ratchet;

[0046] The rotating circular block 151 is provided with a notch groove 155;

[0047] A receiving groove 158 opening forward is provided in the resistance plate 152 at the front side, a push groove 157 communicating with the receiving groove 158 and the rotating groove 149, a push rod 156 is slidably provided in the push groove 157, the front end of the push rod 156 extends into the receiving groove 158 and is fixedly connected with a blocked plate 159 slidable in the receiving groove 158, a return spring 161 is fixedly connected between the rear end surface of the blocked plate 159 and the rear inner wall of the receiving groove 158, the rear end of the push rod 156 extends through the circular sleeve block 124 and the sleeve column 137 and extends into the notch groove 155, and a rotation space 154 is provided in the sleeve column 137 to facilitate the movement of the push rod 156;

[0048] When the threaded rod 145 rotates clockwise, the threaded rod 145 does not drive the rotating block 151 to rotate. When the threaded rod 145 rotates counterclockwise, the rotating block 151 is driven to rotate counterclockwise through the ratchet, and then the push rod 156 is pushed to slide through the inner wall of the rotating block 151 and the obstructed plate 159 is pushed out of the receiving groove 158, so that the resistance plate 152 is obstructed and biased to the front side as a whole. Then, driven by the water flow, the resistance plate 152 swings in the opposite direction and is adjusted to a ninety-degree angle between the resistance plate 152 and the water flow. At this time, under the restriction of the inner wall of the swing range adjustment groove 147 and the adjustment block 146, it is in the maximum angle of attack, that is, the maximum flow resistance state.

[0049] Advantageously, a grating 104 is installed on the inner wall of the sewage transmission pipe 102, and a garbage cleaning sealing port 103 is provided on the upper inner wall of the sewage transmission pipe 102 at the upper end of the grating 104. The grating 104 can block the solid garbage in the pipe, and the grating 104 is installed obliquely so that the garbage can be flushed to the garbage cleaning sealing port 103. The solid garbage can be taken out by opening the garbage cleaning sealing port 103.

[0050] Advantageously, a beam plate 153 is rotatably provided on the right end surface of the resistance plate 152 , and the beam plate 153 can reduce turbulence generated when the water flows through the resistance plate 152 .

[0051] Advantageously, a liquid level gauge is provided on the left end face of the resistance plate 152, by which the liquid level in the flow measuring tube 107 when it is not in a full flow state can be measured, and then the flow cross-sectional area can be measured according to the liquid level, and then the flow rate in the not full flow state can be measured.

[0052] Before use, a constant water flow is flowed into the flow measuring tube 107 to flush the resistance plate 152, and the reading of the flow velocity measuring sensor 119 is read when different flow rates impact the resistance plate 152, and a correlation function relationship is established to determine the relationship between the resistance area of ​​the resistance plate 152 and the flow area and flow velocity, and then the water flow passage area and water flow velocity in the flow measuring tube 107 can be calculated by determining the water flow obstruction area and the reading of the flow velocity measuring sensor 119;

[0053] In the initial state, the resistance plate 152 is at the maximum angle of attack. At this time, the push block 142 rises to the maximum extent, the adjustment block 146 is located at the top of the swing range adjustment slot 147, the blocked plate 159 is retracted to the maximum extent in the storage slot 158, and the rear end of the push rod 156 is located in the notch slot 155. At this time, the pipeline chute 122 located on the right side of the connecting block 123 faces downward, and the pipeline chute 122 located on the left side of the connecting block 123 faces the front side;

[0054] When in use, the device body 111 is installed in the sewage pipe body 101, and the sewage transmission pipe 102 is connected to the flow measuring tube 107, so that the water flow in the sewage transmission pipe 102 passes through the flow measuring tube 107, and the flow measuring tube 107 is filled with water. When the flow velocity of the water passing through the flow measuring tube 107 increases and drives the resistance plate 152 and the circular sleeve block 124 to slide to the right, the resistance plate 152 pushes the connection blocking plate 127 and drives the measuring push block 116 to move to the right. At this time, the right-moving measuring push block 116 compresses the reaction force spring 117 and reads the thrust on the left end face of the resistance plate 152 through the flow velocity measurement sensor 119, and then calculates the data of the water flow velocity in the flow measuring tube 107 through a function, and takes the average value within a certain period of time to calculate the total flow of sewage passing through the flow measuring tube 107 (the specific formula is flow rate = flow velocity × flow cross-sectional area);

[0055] In the process that the connection blocking plate 127 drives the connection block 123 to move left and right as the flow velocity in the flow measuring tube 107 changes, when the connection block 123 moves to the right, the connection block 123 directly passes through the pipeline chute 122 on the right side, and when the connection block 123 is separated from the pipeline chute 122 on the left side of the isolation sleeve 113 and the guide block 136 passes through the curved section of the guide rail 135, the guide block 136 drives the guide rail 135 to rotate and makes the pipeline chute 122 of this section turn to the front side, thereby connecting the through-measurement slot 115 on the left side of the measurement push block 116 with the flow measuring tube 107. 07 is cut off, so as to prevent the water flow in the flow tube 107 from being filled into the through-measuring groove 115 on the left side of the measuring push block 116 due to water pressure, causing errors caused by changes in the obstructed area. When the water pressure in the flow tube 107 decreases and the measuring push block 116 moves leftward under the reaction force of the reaction force spring 117, it first slides into the straight part of the left guide rail 135 by the guide block 136 and then enters the curved part, thereby driving the pipeline chute 122 to rotate to the lower side so as to facilitate the passage of the connecting block 123 when it moves leftward. At this time, the downwardly rotating pipeline chute 122 is cut off by the connecting blocking plate 127.

[0056] When it is necessary to adjust the water flow in the flow tube 107, the regulating motor 138 is started, thereby driving the threaded push block 139 to move downward and pushing the push block 142 to move downward to overcome the elastic force of the push spring 144, thereby driving the regulating block 146 to move downward, thereby expanding the rotation range of the circular sleeve 124. Since the obstructed area of ​​the resistance plate 152 is larger in the rear half than in the front half, the rear end of the resistance plate 152 is swung to the right at a certain angle (the specific angle is determined by the descending height of the regulating block 146), thereby adjusting the flow area in the flow tube 107;

[0057] When the resistance plate 152 needs to be reset, the threaded rod 145 rotates in the opposite direction, thereby driving the threaded push block 139 to move upward. During this process, the threaded rod 145 drives the rotating round block 151 to rotate in the opposite direction, thereby pushing the push rod 156 to slide toward the front side, thereby pushing the blocked plate 159 to slide out of the front end opening of the storage groove 158, thereby increasing the blocked area component of the front part of the resistance plate 152 and when it is larger than the blocked area of ​​the rear side of the resistance plate 152, the resistance plate 152 component rotates positively under the action of the water flow thrust, and at the same time, the adjustment block 146 loses the friction constraint of the inner wall of the inclined surface part of the swing range adjustment groove 147, and then during the rotation of the resistance plate 152, the adjustment block 146 is gradually reset under the thrust of the push spring 144;

[0058] The average value of the water flow velocity in the flow measuring tube 107 measured by the flow velocity measurement sensor 119 during the stage time can then be used to calculate the sewage flow passing through the plane position of the resistance plate 152 per unit time based on the obstructed area of ​​the resistance plate 152 and the flow area in the flow measuring tube 107.

[0059] The beneficial effects of the present invention are as follows: the size of the resistance plate 152 can be adjusted according to the needs, so the device can be installed in a sewage pipe with a larger diameter span, and has a wide range of uses. The flow rate in the pipe can be more accurately measured through the device, and when the sewage flow rate in the pipe needs to be adjusted, the effective flow resistance area of ​​the resistance plate 152 can be adjusted. The device has a simple structure and rich functions, and has great advantages over other flow meters and interception switches on the market.

[0060] Through the above methods, those skilled in the art can make various changes according to the working mode within the scope of the present invention.

Claims

1. A flow meter and flow control device for urban sewage pipelines, comprising a device body fixedly connected between sewage pipe bodies, a sewage transmission pipe for diverting sewage is arranged in the sewage pipe body, and a flow measuring pipe connected in series to the sewage transmission pipe is arranged in the device body; A measuring slot is provided in the upper inner wall of the flow measuring tube, a slot is provided in communication with the lower inner wall of the measuring slot and the flow measuring tube, an isolating sleeve is rotatably provided in the measuring slot, which is opposed to each other on the left and right and can rotate relatively, a through measuring slot is respectively passed through the isolating sleeve on the left and right, a through pipeline slot is provided on the isolating sleeve, a fixing column is fixedly provided between the left and right inner walls of the measuring slot and crosses the through measuring slot, a measuring push block is slidably provided in the through measuring slot and is threadedly connected to the fixing column, a connecting blocking plate is slidably provided in the slot, and a connecting block which can slide in the pipeline slot is fixedly connected between the upper end surface of the connecting blocking plate and the measuring push block; A guide rail is arranged on the inner side wall of the through-measurement slot, and the guide rail is composed of two sections of straight rail slide grooves and one section of curved rail. A guide block that can slide in the guide rail is fixedly arranged on the rear end surface of the measurement push block. The sliding of the guide block can drive the isolation sleeve to rotate and thus facilitate the pipeline slide groove to rotate to the lower side to facilitate the passage of the connection block, while the through-measurement slot space located on the left side of the measurement push block is in a state of being separated from the flow tube; A flow rate measuring sensor is fixedly arranged on the right inner wall of the measuring chute, and a reaction force spring sleeved on the fixed column is fixedly arranged between the flow rate measuring sensor and the measuring push block; A sleeve column is fixedly provided on the lower end surface of the connecting blocking plate, a circular sleeve block is arranged outside the sleeve column, a resistance plate is fixedly provided on the circular sleeve block, and the impact of sewage from right to left in the flow measuring tube on the resistance plate can drive the measuring push block to move to the right and compress the reaction force spring to judge the sewage flow rate flowing through the flow measuring tube per unit time, and a swing controller component is arranged between the sleeve column and the circular sleeve block, and the resistance plate can be driven to rotate relative to the sleeve column through the swing controller component, thereby adjusting the flow rate in the flow measuring tube.

2. The urban sewage flow meter and flow control device according to claim 1, characterized in that: The guide block is located on the left side of the connecting block, so that after the guide block slides into the guide rail and drives the isolation sleeve to rotate so that the pipeline slide groove turns to the lower side, the connecting block can easily slide into the corresponding pipeline slide groove, and the length from the connection part between the connection blocking plate and the connecting block to the left end face of the connecting block is longer than the length of the pipeline slide groove in the single section of the isolation sleeve.

3. A flow meter and flow control device for urban sewage pipes as claimed in claim 2, characterized in that: The swing controller assembly includes a driving slide groove arranged in the sleeve column, an adjusting motor is fixedly arranged on the upper inner wall of the driving slide groove, the lower end of the adjusting motor is connected to a threaded rod that can rotate in the driving slide groove, a push block is slidably arranged in the driving slide groove and is sleeved on the threaded rod and slidably connected to the threaded rod, and a push spring is fixedly connected between the lower end surface of the push block and the lower inner wall of the driving slide groove; A threaded push block threadably connected to the threaded rod is disposed on the upper side of the push block and is located in the driving slide groove, and a groove opening upward and engageable with the lower end of the threaded push block is disposed in the upper end surface of the push spring; A through-slot is provided on the right inner wall of the driving slot, and a trumpet-shaped swing range adjustment slot is provided on the inner wall of the circular sleeve block, which is opposite to the through-slot and opens toward one side of the through-slot. An adjustment block with one end extending through the through-slot and into the swing range adjustment slot is fixedly provided on the right end surface of the push block, and the rotation range of the circular sleeve block can be adjusted by lifting and lowering the adjustment block. A reset component capable of resetting the rotation angle of the resistance plate and the circular sleeve block is arranged in the sleeve column, and the reset component uses the impact of water flow in the flow measuring tube as power to drive the circular sleeve block and the resistance plate to reset.

4. A flow meter and flow control device for urban sewage pipes as claimed in claim 3, characterized in that: The length from the rear end of the resistance plate to the rotation axis of the circular sleeve block is greater than the length from the front end of the resistance plate to the rotation axis of the circular sleeve block, so that when the water flow pressure is deflected, the resistance plate can be rotated to adjust the water flow rate. The rotation angle of the resistance plate is controlled by the lifting height of the adjustment block in the swing range adjustment slot.

5. The urban sewage flow meter and flow control device as claimed in claim 4, characterized in that: It comprises a rotating groove arranged in the inner wall of the lower side of the driving slide groove, a rotating round block is rotatably arranged in the rotating groove, a torsion spring is fixedly arranged between the rotating round block and the inner wall of the rotating groove, and the lower end of the threaded rod extends into the rotating groove and is connected with the rotating round block through a ratchet; The rotating circular block is provided with a notch groove; The resistance plate portion at the front side is provided with a receiving groove opening forward, a push groove is provided between the receiving groove and the rotating groove, a push rod is slidably provided in the push groove, the front end of the push rod extends into the receiving groove and is fixedly connected with a blocked plate slidable in the receiving groove, a return spring is fixedly connected between the rear end surface of the blocked plate and the rear inner wall of the receiving groove, the rear end of the push rod extends through the circular sleeve block and the sleeve column and extends into the notched groove, and a rotation space is provided in the sleeve column to facilitate the movement of the push rod; When the threaded rod rotates clockwise, the threaded rod does not drive the rotating round block to rotate. When the threaded rod rotates counterclockwise, the rotating round block is driven to rotate counterclockwise by the ratchet, and then the push rod is pushed to slide through the inner wall of the rotating round block and the obstructed plate is pushed out of the storage groove, so that the resistance plate is obstructed and biased to the front side as a whole. Then, driven by the water flow, the resistance plate swings in the opposite direction and is adjusted to a ninety-degree angle between the resistance plate and the water flow. At this time, under the restriction of the inner wall of the swing range adjustment groove and the adjustment block, the resistance plate is in the maximum angle of attack, that is, the maximum flow resistance state.

6. The urban sewage flow meter and flow control device as claimed in claim 5, characterized in that: A grating is installed on the inner wall of the sewage transmission pipe, and a garbage cleaning sealing opening is provided on the upper inner wall of the sewage transmission pipe at the upper end of the grating.

7. The urban sewage flow meter and flow control device according to claim 6, characterized in that: A beam plate is rotatably provided on the right end surface of the resistance plate, and the beam plate can reduce turbulence generated when water flows through the resistance plate.

8. The urban sewage flow meter and flow control device according to claim 7, characterized in that: A liquid level gauge is arranged on the left end face of the resistance plate, through which the liquid level in the flow measuring tube when it is not in a full flow state can be measured, and then the flow cross-sectional area can be measured according to the liquid level, and then the flow rate in the not full flow state can be measured.

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