CN217155815U - Floor drain testing device - Google Patents

Abstract

The utility model discloses a floor drain testing arrangement. The floor drain testing device comprises a water feeding mechanism, a testing table and a drain pipe; the test bench is provided with a water collecting tank, a water-stop wall and a water inlet cavity; the bottom of the water collecting tank is provided with a mounting hole for mounting a floor drain; the water-stop wall is annular, and the inner wall of the water-stop wall forms the wall of the water collecting tank; the water inlet cavity is annularly arranged on the periphery of the water-stop wall, is communicated with the water feeding mechanism and allows water flow in the water feeding mechanism to pass through the water-stop wall and be injected into the water collecting tank along the periphery; the drain pipe is communicated with the bottom end of the floor drain arranged at the mounting hole. The floor drain testing device can smoothly and slowly inject water into the water collecting tank during testing, reduces water flow fluctuation in the water collecting tank, stabilizes the water surface, and can improve the accuracy of a testing result.

Description

Floor drain testing device

Technical Field

The utility model relates to a floor drain detects technical field, concretely relates to floor drain testing arrangement.

Background

The floor drain is used as an important drainage part in a residential drainage system, and manufacturers often need to detect the drainage flow of the floor drain after designing floor drains of different batches. In the prior art, the drainage performance of a floor drain is usually measured based on a test device recorded in a drainage flow part of a sanitary appliance drainage floor drain and a ground drainage floor drain in the national standard GB/T27710-2020, and the specific test method is that water is continuously injected into a water tank by a water inlet source, the water level in the water tank is maintained at a constant height, and then the drainage flow of the floor drain is determined based on the water inlet flow; the top that the source of intaking derived from the basin among this test device stretches into and directly towards basin internal water injection, and during the water injection, rivers can produce great fluctuation in the basin, and the surface of water produces corrugated phenomenon obvious, and the difficult accuracy of height data of water level obtains, leads to the great, the inaccurate of floor drain discharge flow's of deviation of test data test result.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned defect or the problem that exist among the background art, provide a floor drain testing arrangement, it can reduce the rivers fluctuation in the water catch bowl, stabilize the surface of water towards the water catch bowl interior flat slow water injection when the test to can promote the accuracy of test result.

In order to achieve the purpose, the following technical scheme is adopted:

a floor drain testing device, comprising: a water delivery mechanism; the test bench is provided with a water collecting tank, a water-stop wall and a water inlet cavity; the bottom of the water collecting tank is provided with a mounting hole for mounting a floor drain; the water-stop wall is annular, and the inner wall of the water-stop wall forms the wall of the water collecting tank; the water inlet cavity is annularly arranged on the periphery of the water-stop wall, is communicated with the water feeding mechanism and allows water flow in the water feeding mechanism to pass through the water-stop wall and be injected into the water collecting tank along the periphery; and the drain pipe is communicated with the bottom end of the floor drain arranged at the mounting hole.

Furthermore, the bottom surface of the water inlet cavity is provided with a water inlet hole communicated with the water feeding mechanism.

Further, the water flow in the water inlet cavity is injected into the water collecting tank by crossing the top end of the water-stop wall.

Furthermore, a water outlet hole is formed in the bottom end of the water-proof wall; the water outlet hole is communicated with the water inlet cavity and the water collecting tank.

Furthermore, an overflow wall is arranged in the water inlet cavity; the overflow wall is arranged in the water inlet cavity in a surrounding mode on the periphery of the water-stop wall, the bottom end of the overflow wall is fixedly connected with the bottom wall of the water inlet cavity, the top end of the overflow wall is arranged at a distance from the top wall of the water inlet cavity, and the overflow wall is arranged between the water inlet hole and the water outlet hole at a distance.

Furthermore, a turbulent flow structure is arranged in the water inlet hole; the flow disturbing structure is suitable for passing water and reducing the kinetic energy of the water flow.

Further, the device also comprises a liquid level sensor and a controller; the bottom end of the liquid level sensor is arranged at the bottom of the water collecting tank and is suitable for detecting the height of the water level in the water collecting tank and sending a water level signal; the controller is electrically connected with the liquid level sensor and the water delivery mechanism, is suitable for receiving the water level signal, and respectively controls the water delivery mechanism to reduce or increase the water delivery flow when the water level height value based on the water level signal is larger than or smaller than a preset water level height range value so as to maintain the water level of the water collection tank within the preset water level height range value.

Further, the distance between the liquid level sensor and the edge of a drainage channel of a floor drain arranged at the mounting hole is larger than 100 mm.

Further, still include the bottom of liquid level chi install in the tank bottom of water catch bowl, it has the liquid level scale.

Further, the distance between the liquid level ruler and the edge of a drainage channel of a floor drain arranged at the mounting hole is larger than 100 mm.

Compared with the prior art, the scheme has the following beneficial effects:

1. in the floor drain testing device provided by the technical scheme, a testing platform is provided with a water collecting tank, a water-stop wall and a water inlet cavity; the water-stop wall is annularly arranged and is arranged between the water collecting tank and the water inlet cavity in a separating way, and the water collecting tank and the water inlet cavity are respectively arranged on the inner side and the outer side of the water-stop wall; during testing, the water inlet cavity is connected with a water source from the water feeding mechanism and is injected into the water collecting tank along the periphery through the water-stop wall, and in the process, the flow with larger flow rate conveyed by the water feeding mechanism is effectively decelerated after entering the water inlet cavity, so that the flow rate of the flow injected into the water collecting tank is smooth and does not generate large fluctuation, the water surface is stable, the water level height value is stably measured, and the accuracy of a test result can be improved; in addition, because the periphery of water catch bowl and water-stop wall is located to the intake antrum ring, consequently, when the intake antrum was towards the water catch bowl in the water injection, rivers can pour into and towards the flow in the center of water catch bowl evenly around the water catch bowl, and this mode also can further make rivers more mild, reduce the rivers undulant to further help promoting the accuracy of test result.

2. The water inlet hole of the water inlet cavity is formed in the bottom surface of the water inlet cavity, when water enters, water flow gradually enters the water inlet cavity from bottom to top, and large fluctuation of the water flow in the water inlet cavity is avoided, so that the water flow injected into the water collecting tank along the periphery of the water inlet cavity can be ensured to be more uniform and gentle, and the accuracy of a floor drain drainage flow test result is further ensured; in addition, the water inlet hole is arranged on the bottom surface of the water inlet cavity, so that the water inlet hole is conveniently communicated with the water feeding mechanism through a pipeline, and the pipeline is ensured not to influence water flow due to the fact that a folded angle is generated.

3. The rivers of intake antrum pour into the water catch bowl into through crossing the top of water-stop wall, promptly, the rivers flow into the water catch bowl from the intake antrum with the mode of overflow, and in-process, it flows into the water catch bowl along the inner wall of water-stop wall, and rivers are more stable can not produce too big fluctuation, therefore are favorable to further guaranteeing the accuracy of floor drain drainage flow test result.

4. The bottom of water-stop wall is equipped with the apopore, and the rivers in the cavity of intaking are suitable for flowing into the water catch bowl along all around through this apopore, and the rivers that flow into in the water catch bowl flow towards the center along all around, and the water level increases gradually from bottom to top, and in the flow process, the fluctuation of rivers is little, can guarantee that the level has good stationarity to and guarantee that floor drain drainage flow test can have more accurate test result.

5. The technical scheme who is equipped with the apopore at the water proof wall technically, the intracavity of intaking still is equipped with the overflow wall, during the test, rivers get into the periphery that the intracavity at first got into the overflow wall of intaking, the internal week that the rethread got into the overflow wall after the top of overflow wall, just finally pour into the water catch bowl from the apopore, in-process, the hydrodynamic energy has carried out dual consumption under the sheltering from of overflow wall and water proof wall, consequently, the kinetic energy of the rivers that flow into in the water catch bowl by the apopore is less, flow more gently, the steady effect of the surface of water is better, promotion to the accuracy of floor drain drainage flow test result is also more obvious.

6. Through set up the vortex structure in inlet opening department to through the kinetic energy that reduces into rivers, further reduce rivers and fluctuate, and further promote the accuracy of floor drain drainage flow test result.

7. The liquid level sensor is suitable for detecting the water level height in the water collecting tank and sending a water level signal, and the controller is suitable for respectively controlling the water sending mechanism to reduce or increase the water sending flow so as to maintain the water level of the water collecting tank within a preset water level height range value when the water level height value reflected based on the water level signal is larger than or smaller than the preset water level height range value after receiving the water level signal.

8. Because the floor drain is easy to form a certain eddy phenomenon above the floor drain during drainage, and the water surface above and near the floor drain can form certain fluctuation, the detection accuracy of the liquid level sensor can be improved by arranging the liquid level sensor at a position which is more than 100mm away from the edge of a drainage channel of the floor drain.

9. Through setting up the liquid level chi to make things convenient for the measurement personnel to recheck the data of water level height, guarantee the accuracy of test result.

10. The accuracy of the detection data of the liquid level ruler can be improved by arranging the liquid level ruler at a position which is more than 100mm away from the edge of a drainage channel of the floor drain.

Drawings

In order to more clearly illustrate the technical solution of the embodiments, the drawings needed to be used are briefly described as follows:

fig. 1 is a first cross-section example of the floor drain testing device of the present invention;

fig. 2 is a second cross section example of the floor drain testing device of the embodiment of the present invention;

fig. 3 is a third example of the cross section of the floor drain testing device of the present invention;

figure 4 is the utility model discloses floor drain testing arrangement's embodiment's top view.

Description of the main reference numbers:

a test bench 1; a water collection tank 11; a mounting hole 111; a boss 112; a water barrier wall 12; a water outlet hole 121; a water inlet cavity 13; a water inlet 131; a flow perturbation structure 1311; an overflow wall 132; a leg 14; a water discharge pipe 2; a liquid level sensor 3; a liquid level ruler 4.

Detailed Description

In the claims and specification, unless otherwise specified the terms "first", "second" or "third", etc., are used to distinguish between different items and are not used to describe a particular order.

In the claims and specification, unless otherwise specified, the terms "central," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like are used in the orientation and positional relationship indicated in the drawings and are used for ease of description only and do not imply that the referenced device or element must have a particular orientation or be constructed and operated in a particular orientation.

In the claims and the description, unless otherwise specified, the terms "fixedly connected" or "fixedly connected" should be understood in a broad sense to mean any connection between the two without a relative displacement or a relative rotation, that is to say including non-detachably fixed connection, integrated and fixedly connected by other means or elements.

In the claims and specification, unless otherwise defined, the terms "comprising", "having" and variations thereof mean "including but not limited to".

The technical solution in the embodiments will be clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 1 to 4, fig. 1 to 4 show the floor drain testing device of the present embodiment. As shown in fig. 1 to 4, the floor drain testing device provided in this embodiment includes a water feeding mechanism (not shown in the drawings), a testing platform 1, a drain pipe 2, a liquid level sensor 3, a controller (not shown in the drawings), a liquid level gauge 4, a console (not shown in the drawings), and a water receiving bucket (not shown in the drawings).

Wherein, send water mechanism can pump into the water source for testboard 1, specifically, send water mechanism can include electric connection's each other converter and water pump, and the converter accessible increases or reduces the rotational speed of frequency output regulation water pump, and then realizes adjusting the play water flow of water pump. The water outlet end of the water pump is communicated with the water inlet end of the test board 1 through a pipeline.

The test bench 1 is provided with a water collecting tank 11, a water-stop wall 12 and a water inlet cavity 13; the bottom of the water collecting tank 11 is provided with a mounting hole 111 for mounting a floor drain; the water-stop wall 12 is annular, and the inner wall of the water-stop wall forms the wall of the water collecting tank 11; the water inlet cavity 13 is arranged around the periphery of the water-stop wall 12, is communicated with the water feeding mechanism, and the water flow in the water feeding mechanism is suitable for being injected into the water collecting tank 11 along the periphery through the water-stop wall 12. The water-stop wall 12 is arranged between the water collection tank 11 and the water inlet cavity 13 in a separated manner, and the water collection tank 11 and the water inlet cavity 13 are respectively arranged on the inner side and the outer side of the water-stop wall 12; during testing, the water inlet cavity 13 is connected with a water source from the water feeding mechanism and is filled into the water collecting tank 11 along the periphery through the water-stop wall 12, and in the process, the flow with larger flow rate conveyed by the water feeding mechanism is effectively decelerated after entering the water inlet cavity 13, so that the flow rate of the flow filled into the water collecting tank 11 is gentle, large fluctuation cannot be generated, the water surface is stable, the water level height value is stably measured, and the accuracy of a test result can be improved; in addition, because the intake cavity 13 is arranged around the periphery of the water collection tank 11 and the water stop wall 12, when the intake cavity 13 is filled with water into the water collection tank 11, the water flow can be uniformly injected from the periphery of the water collection tank 11 and flows towards the center of the water collection tank 11, and this way can further make the water flow more gentle, reduce the water flow fluctuation, and further help to improve the accuracy of the test result.

In particular, as shown in fig. 1 to 3, the bottom of the test bench 1 is provided with a plurality of support legs 14, and the support legs 14 are used for being supported on the ground. The top of the test bench 1 is provided with a water collecting tank 11, a water-stop wall 12 and a water inlet cavity 13.

The water collection tank 11 is formed by enclosing a table board and a water-stop wall 12 on the test bench 1, and is a rectangular water tank which has a length and a width of 800mm and 450mm respectively and meets the standards specified by national standards. The bottom of the water collecting tank 11 is provided with a mounting hole 111 in the middle, and the mounting hole 111 is vertically communicated so as to meet the mounting requirement of the floor drain and ensure that the floor drain is in accordance with the actual mounting scene after being mounted. Preferably, in this embodiment, a through hole corresponding to the mounting hole 111 is formed in a boss 112, which is provided with a certain thickness, at the peripheral edge of the mounting hole 111 at the bottom of the water collecting tank 11, and the boss 112 is used for receiving the floor drain and installing the floor drain, and the test platform 1 is usually made of a metal sheet material, so that the boss 112 can make up for the shortage that the thickness of the bottom of the water collecting tank 11 is small, provide a larger installation thickness for the floor drain, improve the stability of the floor drain after being installed in place, and better simulate the actual use scene of the floor drain.

The water-stop wall 12 is vertically arranged and is in a square ring shape matched with the cross section of the water collecting tank 11 in shape.

The water inlet cavity 13 is annularly arranged on the periphery of the water-stop wall 12, and the bottom surface of the water inlet cavity is provided with a water inlet hole 131 communicated with the water feeding mechanism, namely, the water inlet hole 131 forms the water inlet end of the test board 1 and is used for being communicated with the water outlet end of the water pump through a pipeline, when water is fed, water flow gradually enters the water inlet cavity 13 from bottom to top, and too large fluctuation cannot be generated in the water inlet cavity 13, so that the water flow injected into the water collecting tank 11 along the periphery of the water inlet cavity 13 can be ensured to be more uniform and gentle, and the accuracy of a floor drain drainage flow test result is further ensured; in addition, the water inlet hole 131 is arranged on the bottom surface of the water inlet cavity 13, so that the water inlet hole is conveniently communicated with the water feeding mechanism through a pipeline, and the pipeline is ensured not to influence water flow due to the fact that a folded angle is generated. It should be understood that in this embodiment the diaphragm 12 forms the inner peripheral wall of the inlet chamber 13, while the outer peripheral wall of the inlet chamber 13 should also be formed by providing an annular outer peripheral wall.

In this embodiment, the water flow sent into the water inlet cavity 13 by the water sending mechanism is suitable for being injected into the water collecting tank 11 along the periphery of the water collecting tank 11 through the water blocking wall 12, wherein the water in the water inlet cavity 13 can be injected into the water collecting tank 11 from the top end of the water blocking wall 12 along the top end periphery of the water blocking wall 12, and can also be injected into the water collecting tank 11 through an annular hole arranged on the water blocking wall 12 and around the periphery of the water collecting tank 11.

Specifically, in the present embodiment, the water inlet cavity 13 can be filled with water smoothly into the water collection tank 11 through the water stop wall 12, and the modes that can avoid causing large fluctuation of water flow include the following two modes.

The first mode, referring to fig. 2, the water-stop wall 12 is separated between the water inlet cavity 13 and the water collection tank 11, and no hole for water to pass through is opened on the water-stop wall, the water-stop wall 12 constitutes an inner peripheral cavity wall of the water inlet cavity 13, and the top end of the water-stop wall is lower than an outer peripheral cavity wall of the water inlet cavity 13, during testing, the water feeding mechanism feeds water into the water inlet cavity 13 through the water inlet hole 131, and after the water in the water inlet cavity 13 gradually rises to the height of the top end of the water-stop wall 12, the water is injected into the water collection tank 11 through the top end of the water-stop wall 12, so that the function of injecting water into the water collection tank 11 from the water inlet cavity 13 is realized. Under this mode, rivers in the intake antrum 13 flow into to the water catch bowl 11 with the mode of overflow in, the in-process, rivers along the inner wall following current of water-stop wall 12 and flow down and towards the middle part of water catch bowl 11, the in-process that flows, rivers are comparatively stable to can not produce too big fluctuation, the surface of water catch bowl 11 internal water is comparatively calm and stable, therefore can guarantee that the reading of water level height is comparatively accurate, just also guaranteed that the floor drain drainage flow test can obtain more accurate test result.

Secondly, referring to fig. 3, the water-stop wall 12 is still separated between the water inlet cavity 13 and the water collecting tank 11, wherein the bottom end of the water-stop wall 12 is provided with a water outlet hole 121, and the water outlet hole 121 is communicated with the water inlet cavity 13 and the water collecting tank 11, it should be understood that, in order to ensure that the water in the water inlet cavity 13 can be injected into the water collecting tank 11 along the periphery, the water outlet hole 121 should be an annular hole arranged around the water collecting tank 11; it should be noted that, in this embodiment, since the bottom end of the water-stop wall 12 does not extend downward to the peripheral edge of the bottom of the water collection tank 11, but the water-stop wall 12 cannot be suspended, the water-stop wall 12 can be fixedly connected to the peripheral wall of the water inlet chamber 13 through a connecting wall, specifically, as shown in fig. 3, in this embodiment, the connecting wall is a horizontally arranged square ring-shaped wall, the outer peripheral edge of the connecting wall is fixedly connected to the top end of the peripheral wall (i.e., the peripheral wall) of the water inlet chamber 13, and the inner peripheral edge of the connecting wall is fixedly connected to the top end of the water-stop wall 12, so that the water-stop wall 12 can have good structural strength when the bottom end has the water passing function, and based on this structure, the connecting wall forms the top wall of the water inlet chamber 13. Under this mode, rivers in the intake antrum 13 are suitable for through apopore 121 along flowing into the water catch bowl 11 all around in, rivers that flow into in the water catch bowl 11 flow along around towards the water catch bowl 11 middle part, the water level increases gradually from bottom to top, the in-process flows, the fluctuation of rivers is less, rivers are comparatively stable, after the water level increases to required height, rivers have a take the altitude apart from apopore 121, therefore, the rivers of apopore 121 department are less to the influence of the surface of water, the surface of water is comparatively calm and stable, thereby can guarantee that the reading of water level height can be comparatively accurate, and guarantee that the floor drain drainage flow test can obtain more accurate test result.

Preferably, as shown in fig. 1, in the second embodiment, an overflow wall 132 is further disposed in the water inlet chamber 13; the overflow wall 132 is annularly arranged in the water inlet cavity 13 around the periphery of the water-stop wall 12, the bottom end of the overflow wall is fixedly connected with the bottom wall of the water inlet cavity 13, the top end of the overflow wall is arranged at an interval with the top wall (namely, the connecting wall) of the water inlet cavity 13, and the overflow wall 132 is arranged between the water inlet hole 131 and the water outlet hole 121 at an interval. During the test, rivers are after getting into intake antrum 13, at first get into the periphery one side of overflow wall 132, then need just can get into the interior week of overflow wall 132 and finally realize pouring into to water catch bowl 11 from apopore 121 through crossing the top of overflow wall 132, the in-process that rivers flow, overflow wall 132 and water-stop wall 12 carry out dual consumption to the kinetic energy of rivers, consequently, the kinetic energy of the rivers that flow into water catch bowl 11 by apopore 121 is less, rivers flow comparatively smoothly, the level is also comparatively stable relatively, consequently, be favorable to further promoting the accuracy of floor drain drainage flow test result.

Preferably, in order to further enhance the consumption of the water flow energy, the present embodiment provides an example in which a flow disturbing structure 1311 is further disposed in the water inlet 131; this vortex structure 1311 is suitable for the water and crosses, can also reduce the kinetic energy of the influent stream of being carried by the water feeding mechanism simultaneously, and it can further reduce rivers and fluctuate to further promote the accuracy of floor drain drainage flow test result. Specifically, the flow disturbing structure 1311 may be, but is not limited to, a sponge body fixed in the water inlet hole 131, or a porous structure disposed in the water inlet hole 131.

As shown in fig. 1 to 3, the drain pipe 2 communicates with the bottom end of the floor drain installed at the installation hole 111. Specifically, the drain pipe 2 is matched with the size of the drain pipe 2 buried in the ground in an actual application scene, so that the drainage of the floor drain is truly simulated. In order to save water resources, preferably, in this embodiment, the floor drain testing device may further include a water receiving bucket, which is disposed at the water outlet end of the drain pipe 2 and is used for receiving the water flow output by the drain pipe 2. Preferably, a corresponding water path can be arranged between the water receiving barrel and the water delivery mechanism so as to realize the recycling of water flow.

As shown in fig. 1 to 4, the bottom end of the liquid level sensor 3 is installed at the bottom of the water collecting tank 11, and is adapted to detect the height of the water level in the water collecting tank 11 and send a water level signal.

The controller can be arranged at the outer side of the test board 1 to avoid being affected with damp due to contact with water flow, is electrically connected with the liquid level sensor 3 and the water supply mechanism and is suitable for receiving a water level signal sent by the liquid level sensor 3; the controller can control the water delivery flow of the water delivery mechanism based on the water temperature height value in the water accumulation tank reflected by the water level signal after receiving the water level signal; specifically, a preset water level height range value is preset in the controller, the water level height range value is a height value of which the water level in the water collection tank 11 needs to be kept constant during testing, when the controller detects that the water level height value reflected by the water level signal is larger than the preset water level height range value (specifically, larger than the maximum value of the preset water level height range value), the controller controls the water delivery mechanism to reduce the water delivery flow, and the water level height in the water collection tank 11 is continuously detected based on the liquid level sensor 3 until the water level height value reflected by the water level signal is detected to fall within the preset water level height range value; when the controller detects that the water level height value reflected by the water level signal is smaller than the preset water level height range value (specifically smaller than the minimum value of the preset water level height range value), the controller controls the water delivery mechanism to increase the water delivery flow rate, and continues to detect the water level height in the water collection tank 11 based on the liquid level sensor 3 until the water level height value reflected by the water level signal is detected to fall within the preset water level height range value. Based on the example given by the implementation, during the test, the water supply flow of the water supply mechanism can be automatically adjusted, the controller can also automatically calculate and acquire the drainage flow of the floor drain based on the water supply flow of the water supply mechanism, the automation degree of the whole test process is higher, manual control and observation are not needed, and therefore labor cost is favorably reduced, and the use is more humanized.

Preferably, the floor drain testing device further comprises a control console, the control console is arranged on the outer side of the testing platform 1 and is provided with a data display module and a man-machine operation module, and the data display module can be used for displaying parameters such as the water delivery flow of the water pump and the water level height in the water collection tank 11; the man-machine operation module can be operated by detection personnel to adjust the preset parameters of the controller and the like. The controller can be arranged in the console, and the structural integrity is strong.

Preferably, in this embodiment, the distance between the liquid level sensor 3 and the edge of the drainage channel of the floor drain installed at the installation hole 111 is greater than 100mm, because the floor drain is easy to form a certain eddy phenomenon above the floor drain during drainage, and the water surface above and near the floor drain can form a certain fluctuation, therefore, by arranging the liquid level sensor 3 at a position greater than 100mm from the edge of the drainage channel of the floor drain, the liquid level sensor is beneficial to being away from the eddy generation position and being located at a position where the water surface is more stable, so as to improve the detection accuracy of the liquid level sensor 3.

The bottom of liquid level chi 4 is installed in the tank bottom of water catch bowl 11, and it has the liquid level scale, and it is used for helping the measurement personnel to carry out the recheck to the data of water level height, guarantees the accuracy of test result.

Preferably, the distance between the liquid level ruler 4 and the edge of the drainage channel of the floor drain installed at the installation hole 111 is greater than 100mm, so as to be far away from the vortex generation position near the floor drain and be located at a position where the water surface is more stable, and thus the detection accuracy of the liquid level sensor 3 is improved.

The test principle of the floor drain testing device provided by the embodiment is as follows:

installing the floor drain to be tested on a boss 112 at the bottom of the water collecting tank 11 according to a normal use state and sealing the edge of the floor drain to prevent water flow from passing through an installation gap between the edge of the floor drain and the boss 112; and the bottom end of the floor drain is hermetically connected with the water inlet end of the water discharge pipe 2.

The water pump of the water supply mechanism is turned on to supply water into the water inlet cavity 13, and the water in the water inlet cavity 13 overflows the top end of the overflow wall 132 from the periphery of the overflow wall 132 and is gradually filled into the water collecting tank 11 from the water outlet hole 121.

The water level height range of the water collecting tank 11 is preset in the controller to be (h +15) ± 1mm, namely, (h +14) mm to (h +16) mm, wherein h is the height between the top end of the floor drain and the bottom of the water collecting tank 11, so that the influence of the height of the boss 112 on the water level height required by the test is eliminated.

The controller controls the water delivery flow rate of the water pump by controlling the frequency of the frequency converter, and keeps the water level height in the water collecting tank 11 between (h +14) mm and (h +16) mm. The controller detects the water delivery flow of the water pump, reads a plurality of numerical values after the water delivery flow is stable, and finally calculates the average value to obtain the drainage flow of the floor drain and display the drainage flow on the console.

The above description of the specification and examples is intended to illustrate the scope of the invention, but should not be construed as limiting the scope of the invention.

Claims (10)

1. The utility model provides a floor drain testing arrangement, characterized by includes:

a water delivery mechanism;

the test bench is provided with a water collecting tank, a water-stop wall and a water inlet cavity; the bottom of the water collecting tank is provided with a mounting hole for mounting a floor drain; the water-stop wall is annular, and the inner wall of the water-stop wall forms the wall of the water collecting tank; the water inlet cavity is annularly arranged on the periphery of the water-stop wall, is communicated with the water feeding mechanism and allows water flow in the water feeding mechanism to pass through the water-stop wall and be injected into the water collecting tank along the periphery;

and the drain pipe is communicated with the bottom end of the floor drain arranged at the mounting hole.

2. The floor drain testing device as claimed in claim 1, wherein the bottom surface of the inlet chamber is provided with an inlet hole communicated with the water feeding mechanism.

3. The floor drain testing device according to claim 2, wherein the water in the water inlet chamber is injected into the water collection tank by passing over the top end of the water-stop wall.

4. The floor drain testing device according to claim 2, wherein the bottom end of the water-proof wall is provided with a water outlet hole; the water outlet hole is communicated with the water inlet cavity and the water collecting tank.

5. The floor drain testing device according to claim 4, wherein an overflow wall is further arranged in the water inlet cavity; the overflow wall is arranged in the water inlet cavity in a surrounding mode on the periphery of the water-stop wall, the bottom end of the overflow wall is fixedly connected with the bottom wall of the water inlet cavity, the top end of the overflow wall is arranged at a distance from the top wall of the water inlet cavity, and the overflow wall is arranged between the water inlet hole and the water outlet hole at a distance.

6. The floor drain testing device as claimed in claim 2, wherein a turbulent flow structure is provided in the water inlet hole; the flow disturbing structure is suitable for passing water and reducing the kinetic energy of the water flow.

7. The floor drain testing device of claim 1, further comprising a liquid level sensor and a controller;

the bottom end of the liquid level sensor is arranged at the bottom of the water collecting tank and is suitable for detecting the height of the water level in the water collecting tank and sending a water level signal;

the controller is electrically connected with the liquid level sensor and the water delivery mechanism, is suitable for receiving the water level signal, and respectively controls the water delivery mechanism to reduce or increase the water delivery flow when the water level height value based on the water level signal is larger than or smaller than a preset water level height range value so as to maintain the water level of the water collection tank within the preset water level height range value.

8. The floor drain testing device as claimed in claim 7, wherein the distance between the liquid level sensor and the edge of the drain passage of the floor drain installed at the installation hole is larger than 100 mm.

9. The floor drain testing device according to claim 7, further comprising a liquid level scale having liquid level scales, wherein the bottom end of the liquid level scale is mounted on the bottom of the water collecting tank.

10. The floor drain testing device as claimed in claim 9, wherein the distance between the liquid level gauge and the edge of the drainage channel of the floor drain installed at the installation hole is greater than 100 mm.

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