Unpowered delayed slow release device

Abstract

The utility model provides an unpowered time-delay slow-release device which comprises a box body, and a flow inlet and a flow outlet are formed in the box body. The device is characterized in that a trigger bin fixed to the bottom of the box body and a liquid bin capable of ascending and descending relative to the box body are arranged in the box body, the trigger bin and the liquid bin are both closed cavities and filled with working media with the density smaller than that of water, and the working media can drive a trigger assembly in the trigger bin to ascend and descend so as to open and close the flow outlet; the liquid bin is communicated with the trigger bin through a liquid guide pipe, a slow release device is arranged in the trigger bin, an inlet of the slow release device is communicated with the liquid guide pipe, and an outlet of the slow release device is communicated with the interior of the trigger bin; according to the unpowered delayed slow-release device, the slow-release time of the unpowered delayed slow-release device can be adjusted by selecting different slow-release devices, namely through different hole diameters of the slow-release water outlets and the inlet hole diameters of the slow-release devices, and the unpowered delayed slow-release device is wide in application range and convenient to adjust.

Description

Technical Field

[0001] The utility model relates to the technical field of delayed-release devices, in particular to a non-powered delayed-release device. Background Art

[0002] The delayed regulation process technology utilizes the installed rainwater storage facilities to collect the volume of rainwater runoff that needs to be controlled, and then controls the release through a slow and even device with a settable flow rate (unpowered slow release device) to achieve the precipitation purification and delayed regulation of rainwater. It can not only reduce the peak runoff flow, but also control runoff pollution well.

[0003] The existing time delay regulation process mainly includes a non-outflow time control device and a pilot-type non-powered water outflow control device; among them,

[0004] Without an outflow time control device, water inlet and outlet are carried out simultaneously, and rainwater is difficult to be effectively stored in the water storage space. This is not conducive to the accurate realization of the delayed storage and regulation function of the entire system, nor is it conducive to the sedimentation, purification and effective utilization of rainwater in the water storage facilities.

[0005] The pilot-type non-powered water outlet control device needs to come into direct contact with the collected rainwater. The pollutants brought by the converged rainwater will pollute and interfere with the device. In addition, the time for the collected rainwater to settle and purify is very short, making it difficult to accurately plan and set.

[0006] In order to ensure the effect of rainwater sedimentation and purification, the collected rainwater generally needs to be left to settle for a certain period of time (2-12 hours) before it can be discharged based on the influent water quality, drainage purpose, peak-shifting demand, etc.

[0007] Therefore, there is an urgent need to provide a non-powered delayed release device to solve the defects and shortcomings in the above-mentioned prior art. Utility Model Content

[0008] In order to solve the defects and shortcomings in the prior art, the utility model provides a non-powered delayed release device.

[0009] The specific solution provided by the utility model is:

[0010] A non-powered delayed release device comprises a box body, on which an inlet and an outlet are respectively provided; the characteristic is that a trigger chamber fixed to the bottom of the box body and a liquid chamber capable of being raised and lowered relative to the box body are arranged inside the box body, the trigger chamber and the liquid chamber are both closed cavities and are filled with a working medium having a density less than that of water, the working medium can drive the trigger assembly inside the trigger chamber to rise and fall so as to open and close the outlet, the liquid chamber and the trigger chamber are connected by a liquid guide tube, a slow release device is arranged inside the trigger chamber, the inlet of the slow release device is connected to the liquid guide tube, and the outlet of the slow release device is connected to the inside of the trigger chamber.

[0011] As a further preferred embodiment of the present invention, the inlet is opened at the top of the box body, and the outlet is opened at one side of the bottom of the box body.

[0012] As a further preferred embodiment of the utility model, the slow release device is arranged in a T-shape, the outlet of the slow release device is connected to a slow release water outlet, and the top of the slow release device is connected to a vent.

[0013] As a further preferred embodiment of the present invention, the aperture of the slow-release water outlet is smaller than the aperture of the inlet of the slow-release device.

[0014] As a further preferred embodiment of the utility model, the slow-release time of the unpowered delayed slow-release device is adjusted by selecting different apertures of the slow-release water outlet and the inlet apertures of the slow-release device.

[0015] As a further preferred embodiment of the present invention, the height of the vent is higher than the maximum liquid level that the working medium can reach inside the trigger chamber.

[0016] As a further preferred embodiment of the utility model, the trigger assembly includes a support rod fixed to the bottom of the box body, a trigger rod capable of rising and falling relative to the support rod is inserted inside the support rod, a float capable of rising and falling synchronously with the working medium is sleeved on the outer periphery of the support rod, and the outer edge of the float overlaps with the top outer edge of the trigger rod in the radial direction.

[0017] As a further preferred embodiment of the present invention,

[0018] When the float rises synchronously with the working medium and pushes up the trigger rod from the inside of the support rod, the outlet is triggered to open;

[0019] When the float drops synchronously with the working medium and the trigger rod is retracted into the support rod, the outlet is triggered to close.

[0020] As a further preferred embodiment of the present utility model, two liquid guiding tubes are provided, and the connection positions of the two liquid guiding tubes with the trigger bin are at the same height, and the connection positions of the two liquid guiding tubes with the liquid bin are at the same height.

[0021] As a further preferred embodiment of the utility model, at least one of the liquid guiding tubes is provided with a check valve inside, and the check valve makes the flow rate of the working medium from the liquid tank into the trigger tank greater than the flow rate of the working medium from the trigger tank into the liquid tank.

[0022] Compared with the prior art, the technical effects that can be achieved by the utility model include:

[0023] 1) The utility model provides a non-powered time-delay slow-release device. By selecting different slow-release devices, that is, by different apertures of the slow-release outlet and the inlet apertures of the slow-release device, the slow-release time of the non-powered time-delay slow-release device can be adjusted. The utility model has a wide range of applications and is easy to adjust.

[0024] 2) The utility model provides a non-powered delayed release device, which fills the working medium in the closed liquid chamber and the trigger chamber, and arranges the slow release device and the trigger assembly in the closed trigger chamber, thereby avoiding direct contact between the working medium, the slow release device and the trigger assembly and rainwater, avoiding pollution, erosion or blockage caused by contact with rainwater, and further ensuring the accurate and efficient operation of the delayed release device.

[0025] 3) The present invention provides a non-powered delayed-release device, which can realize the opening and closing control of the outlet only by controlling the flow rate of the working medium between the two closed cavities. It has a simple structure, accurate time control, does not require the intervention of external additional power, and is low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model.

[0027] Figure 2 It is a schematic diagram of the structure of the utility model at the initial stage.

[0028] Figure 3 It is a schematic diagram of the structure of the utility model when the liquid bin is raised at the initial stage of rainfall.

[0029] Figure 4 It is a schematic diagram of the structure of the utility model when the trigger component is triggered during rainfall.

[0030] Figure 5 It is a schematic diagram of the structure of the utility model when the outlet is opened during rainfall.

[0031] Figure 6 It is a schematic diagram of the structure of the utility model when the liquid bin descends after the rainfall ends.

[0032] Figure 7 It is a schematic diagram of the structure of the utility model when the outflow port is closed after the rainfall ends.

[0033] Figure 8 This is a schematic diagram of the installation structure of the liquid guiding tube of the utility model. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] [First embodiment]

[0038] like Figure 1-8 The figure shows a non-powered delayed-release device provided by the first embodiment of the utility model, comprising a box body 1, on which an inlet 11 and an outlet 12 are respectively opened; the inlet 11 is opened at the top of the box body 1 to facilitate rainwater from the top to enter the inside of the box body 1, and the outlet 12 is opened on one side of the bottom of the box body 1. When the outlet 12 is opened, the rainwater inside the box body 1 can be discharged through the outlet 12, thereby realizing the delayed-release discharge of rainwater.

[0039] like Figure 1As shown, the interior of the box body 1 is provided with a trigger chamber 3 fixed to the bottom of the box body 1 and a liquid chamber 2 which can be raised and lowered relative to the box body 1 . The liquid chamber 2 can rise and fall synchronously with the trigger chamber 3 by following the rise and fall of the water level inside the box body 1 .

[0040] The trigger chamber 3 and the liquid chamber 2 in this embodiment are both closed cavities, and are filled with a working medium with a density less than that of water, so as to ensure that the liquid chamber 2 filled with the working medium can float under the buoyancy of the internal water body of the box 1.

[0041] At the same time, the working medium can drive the trigger component inside the trigger bin 3 to move up and down, thereby opening and closing the outlet 12. In the present embodiment, the trigger component includes a support rod 6 fixed to the bottom of the box body 1, and a trigger rod 5 capable of relative movement up and down is inserted inside the support rod 6. A float 7 capable of synchronously rising and falling with the working medium is sleeved on the outer periphery of the support rod 6. The outer edge of the float 7 overlaps with the top outer edge of the trigger rod 5 in the radial direction. Therefore, when the float 7 rises under the buoyancy of the working medium, the outer edge of the float 7 overlaps with the top outer edge of the trigger rod 5 in the radial direction, so that the trigger rod 5 can be lifted up from the inside of the support rod 6.

[0042] In this embodiment, the specific control method for the trigger rod 5 to trigger the opening and closing of the outlet 12 is set as follows:

[0043] When the float 7 rises synchronously with the working medium and lifts the trigger rod 5 from the inside of the support rod 6 to a preset high position, the trigger outlet 12 is opened; when the float 7 falls synchronously with the working medium and retracts the trigger rod 5 into the inside of the support rod 6 to a preset low position, the trigger outlet 12 is closed. Therefore, by triggering the trigger rod 5 to achieve a lifting movement to the preset position inside the support rod 6, the opening and closing control of the outlet 12 can be achieved.

[0044] A slow release device 4 is arranged inside the trigger chamber 3 , the inlet of the slow release device 4 is communicated with the liquid guiding tube 9 , and the outlet of the slow release device 4 is communicated with the inside of the trigger chamber 3 .

[0045] like Figure 1 As shown, the slow release device 4 in this embodiment is set to a T shape, and the outlet of the slow release device 4 is connected to the slow release water outlet 4-2, and the aperture of the slow release water outlet 4-2 is smaller than the inlet aperture of the slow release device 4, thereby ensuring that the working medium can enter the trigger chamber 3 at a uniform and stable flow rate, so that the opening and closing control of the outlet 12 can be achieved within the expected time; therefore, as a further preference, the slow release time of the unpowered delayed slow release device can be adjusted by selecting different apertures of the slow release water outlet 4-2 and the inlet aperture of the slow release device 4.

[0046] The top of the slow release device 4 is connected with a vent 4-1, and the height of the vent 4-1 needs to be higher than the maximum liquid level that the working medium can reach inside the trigger chamber 3 to prevent the entry of the working medium from affecting the circulation of the working medium inside the slow release device 4.

[0047] The working medium is connected between the liquid tank 2 and the trigger tank 3 through the liquid conduit 9. After the liquid tank 2 rises to a preset height difference relative to the trigger tank 3, the working medium can flow from the liquid tank 2 through the liquid conduit 9 into the trigger tank 3. After the liquid tank 2 drops to a preset height difference relative to the trigger tank 3, the working medium can flow from the trigger tank 3 through the liquid conduit 9 into the liquid tank 2.

[0048] In this embodiment, two liquid guiding tubes 9 are provided, and the connection positions of the two liquid guiding tubes 9 and the trigger chamber 3 are at the same height. Figure 8 As shown, the connection position with the liquid tank 2 is at the same height; as a further preference, a check valve 8 is arranged inside at least one of the liquid guide tubes 9, and the check valve makes the flow rate of the working medium from the liquid tank 2 into the trigger tank 3 greater than the flow rate of the working medium from the trigger tank 3 into the liquid tank 2, thereby achieving the control effect of instantaneous opening and delayed closing of the outlet 12.

[0049] The specific working process of this embodiment is as follows:

[0050] In the initial state, if Figure 2 As shown;

[0051] When the road runoff rainwater enters the box 1, the liquid tank 2 is subjected to an increased buoyancy as the amount of water inside the box 1 increases, and thus floats up. Figure 3 As shown;

[0052] When the liquid tank 2 rises to a preset height difference with the trigger tank 3, the working medium in the liquid tank 2 is slowly discharged into the trigger tank 3 through the liquid guide tube 9 and the slow release device 4. When the liquid level in the trigger tank 3 rises, the float 7 floats up with the buoyancy and pushes up the trigger rod 5 from the inside of the support rod 6. Figure 4 As shown;

[0053] When the trigger rod 5 rises to a preset high position inside the support rod 6, the outlet 12 is controlled to open. Figure 5 As shown, at this time, the water inside the box body 1 can be discharged outward through the outlet 12;

[0054] After the liquid tank 2 slowly descends with the discharge of water to a preset height difference with the trigger tank 3, the working medium in the trigger tank 3 flows back to the liquid tank 2 through the liquid guide tube 9. Figure 6 As shown;

[0055] As the liquid level of the working medium in the trigger chamber 3 decreases, the trigger rod descends and resets to a preset low position, and the trigger outlet 12 is closed. Figure 7shown.

[0056] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A non-powered delayed release device, comprising a housing (1), wherein the housing (1) is provided with an inlet (11) and an outlet (12); the characteristics are as follows: The box (1) is provided with a trigger chamber (3) fixed to the bottom of the box (1) and a liquid chamber (2) capable of being raised and lowered relative to the box (1); the trigger chamber (3) and the liquid chamber (2) are both closed cavities and are filled with a working medium having a density less than that of water; the working medium can drive the trigger assembly inside the trigger chamber (3) to rise and fall, thereby opening and closing the outlet (12); the liquid chamber (2) and the trigger chamber (3) are connected via a liquid guide tube (9); a slow release device (4) is provided inside the trigger chamber (3); the inlet of the slow release device (4) is connected to the liquid guide tube (9), and the outlet of the slow release device (4) is connected to the inside of the trigger chamber (3).

2. The unpowered time-delayed release device according to claim 1, characterized in that: The inlet (11) is opened at the top of the box body (1), and the outlet (12) is opened at one side of the bottom of the box body (1).

3. The unpowered time-delayed release device according to claim 1, characterized in that: The slow release device (4) is arranged in a T-shape, the outlet of the slow release device (4) is connected to a slow release water outlet (4-2), and the top of the slow release device (4) is connected to a vent (4-1).

4. The unpowered time-delayed release device according to claim 3, characterized in that: The aperture of the slow-release water outlet (4-2) is smaller than the aperture of the inlet of the slow-release device (4).

5. The unpowered time-delayed release device according to claim 4, characterized in that: The slow-release time of the unpowered delayed slow-release device is adjusted by selecting different apertures of the slow-release water outlet (4-2) and the inlet aperture of the slow-release device (4).

6. The unpowered time-delayed release device according to claim 3, characterized in that: The height of the vent (4-1) is higher than the maximum liquid level that the working medium can reach inside the trigger chamber (3).

7. The unpowered time-delayed release device according to claim 1, characterized in that: The trigger assembly comprises a support rod (6) fixed to the bottom of the box body (1), a trigger rod (5) capable of relative lifting and lowering movement is inserted into the support rod (6), a float (7) capable of synchronously lifting and lowering with the working medium is sleeved on the outer periphery of the support rod (6), and the outer edge of the float (7) overlaps with the outer edge of the top of the trigger rod (5) in the radial direction.

8. The unpowered time-delayed release device according to claim 7, characterized in that: When the float (7) rises synchronously with the working medium and pushes up the trigger rod (5) from the inside of the support rod (6) to a preset high position, the outlet (12) is triggered to open; When the float (7) synchronously descends with the working medium and the trigger rod (5) is retracted into the interior of the support rod (6) to a preset low position, the trigger outlet (12) is closed.

9. The unpowered time-delayed release device according to claim 1, characterized in that: Two liquid guide tubes (9) are provided, and the connection positions of the two liquid guide tubes (9) with the trigger chamber (3) are at the same height, and the connection positions with the liquid chamber (2) are at the same height.

10. The unpowered time-delayed release device according to claim 9, characterized in that: A check valve (8) is provided inside at least one of the liquid guide tubes (9), wherein the check valve enables the flow rate of the working medium from the liquid compartment (2) into the trigger compartment (3) to be greater than the flow rate of the working medium from the trigger compartment (3) into the liquid compartment (2).

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