Siphon roof drain with protection and anti-freezing structure

Abstract

The utility model discloses a siphon roof drain with a protection and anti-freezing structure, which belongs to the field of drainage pipe fittings, is used for drainage, and comprises a lower shell with a lower shell connecting end, the lower shell is connected with an upper shell through a shell connecting end and a connecting piece, and the upper shell is provided with a top cover and a plurality of clamping notches with protective nets; the upper shell is further provided with a plurality of upper heating rod containing cavities with heating rods, and one end of each heating rod extends out of the corresponding upper heating rod containing cavity and then is connected with the controller through a wire. A filter plate is arranged at the position, close to the shell connecting end, in the lower shell, the filter plate is in lap joint with a plurality of filter plate bearing blocks on the inner wall of the lower shell, and the filter plate bearing blocks are evenly distributed in the circumferential direction of the lower shell. According to the siphon roof drain, by redesigning the structure of the siphon roof drain, the strength of the siphon roof drain is enhanced, rainwater can be prevented from being frozen in the roof drain under the condition that the air temperature is low, the drainage performance is improved, and meanwhile the maintenance cost is reduced through the modular structural design.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of drainage pipe fittings, and in particular, relates to a siphon rainwater head with a protection and anti-freezing structure. BACKGROUND

[0002] The rainwater head is arranged at the inlet of a rainwater pipeline and can rapidly discharge roof rainwater and belongs to a metal downpipe system branch. However, in the cold season, when rainwater remains in the rainwater head, ice will be formed due to the low temperature, which affects the normal work of the rainwater head. To solve this problem, a solution is given in the prior art, that is, a siphon rainwater head with an anti-freezing function is disclosed in a patent document with the patent number CN215167306U, which specifically discloses the following technical content: a head body is provided with a drainage pipe fixedly installed on the lower wall surface of the head body, a flow regulator is fixedly installed on the inner lower wall surface of the head body, a flow guide cover is fixedly installed on the flow regulator, and a temperature sensor is fixedly installed on the inner side wall surface of the head body. The above technical solution heats the anti-freezing liquid in the water tank through the heating sheet, so as to guide the anti-freezing liquid into the annular pipe through the water pump to heat the head body by water, prevent the ice formation of the residual water in the rainwater head, and prevent the drainage pipe from being blocked by the reciprocating device driving the moving rod to make the sharp spike dredge the residual ice slag in the drainage pipe, thereby improving the drainage work efficiency of the rainwater head.

[0003] In the above prior art, the applicant believes that the above prior art can heat through the heating sheet, but it heats the anti-freezing liquid in the water tank instead of improving the structure of the siphon rainwater head, which belongs to an indirect solution to the ice formation problem. In addition, the structure of the siphon rainwater head is not effectively improved in the prior art, and the structure of the siphon rainwater head cannot be effectively protected. SUMMARY

[0004] The application aims to provide a siphon rainwater head with a protection and anti-freezing structure, which can improve the strength of the siphon rainwater head by redesigning the structure of the siphon rainwater head, avoid the ice formation of rainwater in the rainwater head in the case of low temperature, improve the drainage performance, and reduce the maintenance cost through the componentized structure design.

[0005] To achieve the above purpose, the application is implemented by the following technical solution:

[0006] The siphon rainwater head with protection and anti-freezing structure in the application comprises a lower shell, which is connected with the pipe end through a lower shell connecting end, and is connected with an upper shell through a shell connecting end and a connecting piece. The upper shell is provided with a top cover at the top opening. A plurality of clamping notches are processed in the circumference of the upper shell. A protective net is inserted into the clamping notches. The top end of the protective net is in contact with the top cover. A plurality of uniformly distributed upper heating rod placing cavities are integrally arranged at the positions between adjacent protective nets of the upper shell. The upper heating rod placing cavities have cavities for inserting heating rods. One end of the heating rod is connected with a controller through a wire after extending out of the upper heating rod placing cavity. A filter plate is arranged at the position close to the shell connecting end in the interior of the lower shell. The filter plate is overlapped on a plurality of filter plate supporting blocks of the inner wall of the lower shell. The filter plate supporting blocks are uniformly distributed in the circumference of the lower shell.

[0007] As one of the preferred technical solutions, in the application, a plurality of lower heating rod placing cavities are integrally arranged on the circumferential outer wall of the lower shell. The lower heating rod placing cavities have cavities for accommodating heating rods. One end of the heating rod is connected with a controller through a wire after extending out of the lower heating rod placing cavity. The opening of the upper heating rod placing cavity is located at the bottom. The opening of the lower heating rod placing cavity is located at the top.

[0008] As one of the preferred technical solutions, in the application, the top surface of the top cover has a warning slogan.

[0009] As one of the preferred technical solutions, in the application, the top end of the upper shell is open. The top cover is integrally provided with a top cover inner rim at the end surface in contact with the top end of the upper shell. The top cover inner rim is a ring body structure protruding from the top cover. The circumferential outer wall of the top cover inner rim is in interference fit with the circumferential inner wall of the upper shell.

[0010] As one of the preferred technical solutions, in the application, the top cover is provided with a knob rotating shaft rotating oppositely at the middle position. The knob rotating shaft is integrally provided with a top cover knob at the position extending out of the top cover. The knob rotating shaft extends away from the top cover and passes through and is connected with the filter plate.

[0011] As one of the preferred technical solutions, in the application, the knob rotating shaft is provided with an upper scraper plate at the position above the filter plate. The knob rotating shaft is provided with a lower scraper plate at the position below the filter plate. The upper scraper plate and the lower scraper plate are uniformly distributed around the central axis of the knob rotating shaft and are correspondingly arranged.

[0012] As one of the preferred technical solutions, in the application, the lower shell is provided with a smooth transition necking structure at the connecting position of the lower shell and the lower shell connecting end. The lower heating rod placing cavity is integrally arranged with the lower shell and the necking structure.

[0013] As one of the preferred technical solutions, the top cover is processed with a plurality of filtering holes communicated with the upper shell, and a filter screen is laid and fixed at the bottom of the top cover.

[0014] Compared with the prior art, the application has the following beneficial effects:

[0015] 1. The siphon rainwater collector is divided into the upper shell and the lower shell, which facilitates the maintenance and replacement in the later period and reduces the maintenance cost in the later period.

[0016] 2. The protective net is arranged in the upper shell and can be detachably separated from the upper shell, which facilitates the installation and replacement and cleaning. A plurality of integral upper heating rod placing cavities are arranged in the upper shell between the adjacent protective nets, which not only can place the heating rod and heat the position, but also can strengthen the structure of the upper shell, and the structure protruding from the circumferential outer wall of the upper shell can also protect the upper shell.

[0017] 3. The top cover structure is redesigned, which not only can set the warning slogan, but also can cooperate with the filter plate through the top cover knob, the knob rotating shaft, the upper scraper and the lower scraper, improve the cleaning effect and ensure the smooth drainage. DETAILED DESCRIPTION

[0018] Figure 1 is a perspective view of the application Figure 1 .

[0019] Figure 2 is a perspective view of the application Figure 2 .

[0020] Figure 3 is a perspective view of the application without the top cover.

[0021] Figure 4 is Figure 3 a partial enlarged view of part I in the figure.

[0022] Figure 5 is a front view of the application.

[0023] Figure 6 is Figure 5 a sectional view of the position and direction shown by A-A in the figure.

[0024] In the figure: 1, top cover; 2, top cover knob; 3, knob rotating shaft; 4, upper shell; 5, protective net; 6, upper heating rod placing cavity; 7, shell connecting end; 8, connecting piece; 9, heating rod; 10, lower heating rod placing cavity; 11, lower shell; 12, lower shell connecting end; 13, upper scraper; 14, filter plate; 15, lower scraper; 16, filter plate supporting block; 17, inner edge of the top cover. Detailed Implementation

[0025] The technical solutions described in this application will be further described below with reference to the accompanying drawings and embodiments.

[0026] Example 1

[0027] like Figures 1 to 6 As shown, a siphon rainwater hopper with a protective and antifreeze structure includes a lower shell 11 with a circular cylindrical structure. The bottom opening of the lower shell 11 is integrally formed with a connecting end 12 of the lower shell through a smoothly transitioned constriction structure. The connecting end 12 of the lower shell is connected to a pipe. The top opening of the lower shell 11 is connected to an upper shell 4 through a shell connecting end 7 and a connecting member 8. The upper shell 4 is a hollow circular cylindrical structure with openings at both ends. The shell connecting end 7 is an annular structure protruding from the edges of the upper shell 4 and the lower shell 11, and has a through hole for the connecting member 8 to pass through. The connecting members 8 are evenly distributed around the central axis of the upper shell 4 and the lower shell 11 on the shell connecting end 7. The upper shell 4 and the lower shell 11 are coaxially arranged.

[0028] A top cover 1 is provided at the top opening of the upper housing 4, and the top cover 1 is connected to the upper housing 4 in a detachable manner.

[0029] The upper housing 4 has several snap-fit ​​notches arranged circumferentially, and a protective net 5 is inserted into the snap-fit ​​notches. The protective net 5 has several through holes and can be made of stainless steel. The bottom and sides of the protective net 5 are respectively inserted into the snap-fit ​​notches, and the top of the protective net 5 is limited to the snap-fit ​​notches by the top cover 1.

[0030] The upper housing 4 has an upper heating rod placement cavity 6 located between adjacent protective nets 5, and the upper heating rod placement cavities 6 are evenly distributed in the aforementioned location. A heating rod 9 adapted to the shape and length of the upper heating rod placement cavity 6 is inserted into the upper heating rod placement cavity 6. The heating rod 9 extends from the bottom end of the upper heating rod placement cavity 6 and is connected to a controller via a wire. The controller is a temperature controller.

[0031] The lower housing 11 has a plurality of lower heating rod placement cavities 10 integrally formed on its circumferential outer wall. The bottom end of each lower heating rod placement cavity 10 is sealed. The top end of each lower heating rod placement cavity 10 is machined with blind holes from top to bottom that are adapted to the shape of the lower heating rod placement cavity 10. A heating rod 9 is inserted into the blind hole. The heating rod 9 extends out from the top end of the lower heating rod placement cavity 10 and is connected to a controller via a wire. The controller is a temperature controller.

[0032] The lower housing 11 is provided with a filter plate 14 near the housing connection end 7. The filter plate 14 overlaps the filter plate support block 16 on the inner wall of the lower housing 11. The filter plate support block 16 is evenly distributed on the inner wall of the lower housing 11 and is integrally formed with the lower housing 11.

[0033] Example 2

[0034] like Figures 1 to 6 As shown, a siphon rainwater hopper with a protective and antifreeze structure is provided. The top cover 1 has a warning sign on its top end face. The top cover 1 is machined with several filter holes that communicate with the upper shell 4, and a filter screen is laid and fixed at the bottom of the top cover 1.

[0035] The structure and connection relationships of the remaining parts are the same as those described in Embodiment 1. To avoid redundancy, they will not be repeated here. Those skilled in the art can understand the technical solution described in this embodiment based on Embodiment 1.

[0036] Example 3

[0037] like Figures 1 to 6 As shown, a siphon rainwater hopper with a protective and antifreeze structure is provided. The top cover 1 has an inner edge 17 integrally provided on the bottom surface. The inner edge 17 is an annular plate protruding from the bottom surface of the top cover 1, and the top cover 1 is interference-fitted with the inner wall of the upper shell 4 through the inner edge 17.

[0038] A knob shaft 3 is rotatably mounted at the center of the top cover 1. The top end of the knob shaft 3 extends out of the top cover 1, and the bottom end extends downward and stops after passing through the filter plate 14. A lower scraper 15 is integrally mounted on the bottom end of the knob shaft 3 passing through the filter plate 14, and the lower scraper 15 is evenly distributed around the central axis of the knob shaft 3. An upper scraper 13 is integrally mounted on the knob shaft 3 above the filter plate 14, and the upper scraper 13 is evenly distributed around the central axis of the knob shaft 3, and the upper scraper 13 is correspondingly mounted to the lower scraper 15. The bottom surface of the upper scraper 13 and the top surface of the lower scraper 15 are in contact with the corresponding end surfaces of the filter plate 14.

[0039] The structure and connection relationships of the remaining parts are the same as those described in Embodiment 1 or Embodiment 2, and will not be repeated here to avoid redundancy. Those skilled in the art can understand the technical solutions described in this embodiment based on a full understanding of Embodiment 1 and Embodiment 2.

[0040] Based on the above embodiments, the following paragraphs will continue to describe in detail the technical features involved and the functions and roles of these technical features in this technical solution, so as to help those skilled in the art to fully understand the technical solution and reproduce it.

[0041] See Figures 1 to 6 In the application, the top cover 1 is a circular plate body, and a top cover inner rim 17 protruding from the annular plate body of the top cover 1 is integrally arranged on the bottom surface of the top cover 1. The top cover 1 is in interference fit with the top end opening of the upper shell 4 through the top cover inner rim 17, so as to realize stable connection of the top cover 1 and the upper shell 4 and ensure stable work of the structure arranged on the top cover 1 subsequently.

[0042] In the application, the top end opening of the upper shell 4 is connected with the top cover 1, the bottom end of the upper shell 4 is connected with the shell connecting end 7 on the lower shell 11 through the integrally arranged shell connecting end 7 and the shell connecting end 7 protruding from the circumferential outer wall of the upper shell 4 and the lower shell 11 through the connecting piece 8. The connecting piece 8 is a bolt or a screw, and the shell connecting end 7 is an annular plate body protruding from the circumferential outer wall of the upper shell 4 and the lower shell 11.

[0043] In the application, the upper shell 4 is provided with a plurality of clamping notches on the circumferential outer wall, and clamping grooves are arranged on both sides and the bottom surface of the clamping notches, so as to facilitate the insertion of the protective net 5 and realize the limiting of the protective net 5. The top end of the clamping notch is limited by the top cover 1, so that the protective net 5 inserted into the clamping notch will be limited in the top cover 1. The protective net 5 is an arc-shaped metal plate body, preferably a stainless steel material or other metal plate body / metal mesh body that can be used for drainage pipeline and is resistant to rainwater corrosion.

[0044] In the application, the upper shell 4 is integrally provided with a plurality of upper heating rod placing cavities 6 at positions between adjacent protective nets 5. In addition to being able to realize strength reinforcement at the position, the upper heating rod placing cavities 6 can also be matched with the heating rod 9, so as to heat the upper shell 4 itself and the internal space, thereby avoiding ice formation of rainwater in the siphon rainwater hopper when the temperature is too low.

[0045] In the application, the lower shell 11 is provided with a filter plate 14 at a position close to the shell connecting end 7. The filter plate 14 is located inside the lower shell 11, and the filter plate 14 is lapped on a plurality of filter plate supporting blocks 16 on the inner wall of the lower shell 11. The filter plate supporting blocks 16 are integrally arranged with the inner wall of the lower shell 11 and are uniformly distributed around the central axis of the lower shell 11. There is enough distance between adjacent filter plate supporting blocks 16 for the filter plate 14 to pass through.

[0046] In the application, the top cover 1 is rotationally connected with a knob rotating shaft 3 at the middle position, and the knob rotating shaft 3 is vertically arranged with the top cover 1. The top end of the knob rotating shaft 3 extends out of the top cover 1 and is coupled with the top cover knob 2, and the bottom end of the knob rotating shaft 3 extends downward and penetrates through the filter plate 14. The knob rotating shaft 3 is integrally provided with a lower scraping plate 15 at the end penetrating through the filter plate 14, and the lower scraping plate 15 is uniformly distributed around the central axis of the knob rotating shaft 3. The circumferential side wall of the knob rotating shaft 3 is integrally provided with a plurality of upper scraping plates 13 at the position above the filter plate 14, and the upper scraping plates 13 are correspondingly arranged with the lower scraping plate 15. On the one hand, the upper scraping plate 13 and the lower scraping plate 15 can respectively clean the top end and the bottom end of the filter plate 14, and on the other hand, the corresponding arrangement of the upper scraping plate 13 and the lower scraping plate 15 can also facilitate the judgment of the position state of the lower scraping plate 15, so as to penetrate through the adjacent filter plate supporting blocks 16 during assembly.

[0047] In the application, the lower shell 11 is further provided with a plurality of lower heating rod placing cavities 10 on the circumferential outer wall. The lower heating rod placing cavity 10 is a hollow shell protruding from the lower shell 11, and the top end of the lower shell 11 is open and the bottom end is blocked. The heating rod 9 is inserted into the lower heating rod placing cavity 10, and the heating rod 9 extends out of the top end of the lower heating rod placing cavity 10. In the application, since the end of the heating rod 9 in the lower heating rod placing cavity 10 and the upper heating rod placing cavity 6 is consistent, the number of wire connections and the wiring difficulty can be reduced, and the same temperature controller can be connected to improve the consistency of temperature control. The temperature controller in the application is a digital electronic temperature controller.

[0048] In use, the upper shell 4 should be arranged to allow rainwater to enter the inside of the upper shell 4 through the protective net 5, and to enter the lower shell coupling end 12 through the upper shell 4, the lower shell 11 and the filter plate 14.

[0049] Finally, although the description is described in the best embodiment, those skilled in the art can recombine the technical solutions or replace some technical features with equivalent ones under the existing technical conditions, which should be understood as still within the protection scope of the technical solutions.

Claims

1. A siphon rainwater hopper with a protective and antifreeze structure, comprising a lower housing (11), wherein the lower housing (11) is connected to the end of a pipe via a lower housing connecting end (12), and the lower housing (11) is connected to an upper housing (4) via a housing connecting end (7) and a connecting piece (8), characterized in that: The upper housing (4) has a top cover (1) at the top opening. The upper housing (4) has several snap-fit ​​notches processed in the circumferential direction. A protective net (5) is inserted into the snap-fit ​​notch. The top of the protective net (5) contacts the top cover (1). The upper housing (4) has several evenly distributed upper heating rod placement cavities (6) integrally arranged between adjacent protective nets (5). The upper heating rod placement cavity (6) has a chamber for inserting heating rods (9). One end of the heating rod (9) extends out of the upper heating rod placement cavity (6) and is connected to the controller through a wire. The lower housing (11) has a filter plate (14) arranged inside near the housing connection end (7). The filter plate (14) overlaps on several filter plate support blocks (16) on the inner wall of the lower housing (11). The filter plate support blocks (16) are evenly distributed in the circumferential direction of the lower housing (11).

2. The siphon rainwater hopper with a protective and antifreeze structure according to claim 1, characterized in that: The lower housing (11) has a plurality of lower heating rod placement cavities (10) integrally provided on its circumferential outer wall. The lower heating rod placement cavity (10) has a chamber for accommodating heating rods (9). The heating rod (9) is connected to the controller via a wire at the end extending out of the lower heating rod placement cavity (10). The opening of the upper heating rod placement cavity (6) is located at the bottom, and the opening of the lower heating rod placement cavity (10) is located at the top.

3. A siphon rainwater hopper with a protective and antifreeze structure according to claim 2, characterized in that: The top surface of the cover (1) has a warning sign.

4. A siphon rainwater hopper with a protective structure and an antifreeze structure according to claim 2, characterized in that: The top of the upper housing (4) has an opening, and the top cover (1) has an inner edge (17) integrally provided on the end face that contacts the top of the upper housing (4). The inner edge (17) is a ring structure protruding from the top cover (1), and the outer circumferential wall of the inner edge (17) is interference-fitted with the inner circumferential wall of the upper housing (4).

5. A siphon rainwater hopper with a protective structure and an antifreeze structure according to claim 4, characterized in that: The top cover (1) has a relatively rotating knob shaft (3) at the middle position. The knob shaft (3) has a top cover knob (2) integrally provided at the position where it extends out of the top cover (1). The knob shaft (3) extends away from the top cover (1) and passes through the filter plate (14) and is connected to the filter plate (14).

6. A siphon rainwater hopper with a protective structure and an antifreeze structure according to claim 5, characterized in that: The knob shaft (3) is provided with an upper scraper (13) above the filter plate (14), and the knob shaft (3) is provided with a lower scraper (15) below the filter plate (14). The upper scraper (13) and the lower scraper (15) are evenly distributed around the central axis of the knob shaft (3) and are arranged correspondingly.

7. A siphon rainwater hopper with a protective structure and an antifreeze structure according to claim 6, characterized in that: The lower housing (11) and the lower housing connection end (12) are provided with a smooth transition tapering structure, and the lower heating rod placement cavity (10) is integrated with the lower housing (11) and the tapering structure.

8. A siphon rainwater hopper with a protective structure and an antifreeze structure according to any one of claims 1 to 7, characterized in that: The top cover (1) is machined with several filter holes that communicate with the upper shell (4), and a filter screen is laid and fixed at the bottom of the top cover (1).

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