Gutter node

Abstract

The utility model relates to the technical field of building structures, and provides a gutter node which comprises a gutter, a drainage pipe, a flexible heating piece and a limiting mechanism. The gutter is configured to extend along an eave of the sloping roof, the drainage pipe is communicated with the gutter, the flexible heating piece and the limiting mechanism are arranged in the gutter, and the flexible heating piece extends in the extending direction of the gutter; the limiting mechanism has a first state and a second state, and under the condition that the limiting mechanism is in the first state, the limiting mechanism is connected with the flexible heating piece so as to limit the flexible heating piece in the gutter; and when the limiting mechanism is in the second state, the limiting mechanism is separated from the flexible heating element. According to the utility model, the flexible heating element can be conveniently laid in the gutter, so that the flexible heating element is prevented from shifting in use, the damage risk caused by shifting of the flexible heating element is reduced, and the service life of the flexible heating element is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to building structure technical field especially relates to a gutter joint. BACKGROUND

[0002] At present, the building structure of severe cold area is always troubled by roof snow and eave hanging ice, roof snow can cause roof deformation, even roof collapse, eave hanging ice not only can produce damage to eave, even the accidental drop of big ice column can cause personal and property loss.

[0003] In the related art, in order to overcome the above problems, the gutter structure is usually arranged along the eave of the inclined roof, so that the snow or ice is melted based on the heating element built in the gutter structure, but the existing heating element is not convenient to lay in the gutter structure, and displacement is prone to occur in long-term use, which not only affects the snow melting effect, but also greatly reduces the stability and durability of the heating element. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of gutter joint, to at least solve or improve the problem that existing heating element is not convenient to lay in the gutter structure, and displacement is prone to occur in long-term use.

[0005] The utility model provides a kind of gutter joint, comprising: gutter, drain pipe, flexible heating element and limiting mechanism;

[0006] The gutter is configured to extend along the eave of the inclined roof, the drain pipe and the gutter are communicated, the flexible heating element and the limiting mechanism are respectively arranged in the gutter, and the flexible heating element is arranged along the extension direction of the gutter;

[0007] The limiting mechanism has a first state and a second state, in the case that the limiting mechanism is in the first state, the limiting mechanism and the flexible heating element are connected to limit the flexible heating element in the gutter, and in the case that the limiting mechanism is in the second state, the limiting mechanism and the flexible heating element are separated.

[0008] According to the gutter joint provided by the utility model, the limiting mechanism comprises a fixing seat, an elastic element and a pressing piece;

[0009] The fixing seat is connected with the gutter, and the fixing seat is provided with a first clamping element;The first end of the pressing piece is provided with a second clamping element, the first end of the pressing piece is arranged on the lower side of the fixing seat in a vertically adjustable manner, and is rotatably arranged with the fixing seat;The elastic element is abutted between the fixing seat and the first end of the pressing piece;

[0010] When the pressing piece is at the first height, the pressing piece is separated from the flexible heating piece, the first clamping piece and the second clamping piece are separated, so that the pressing piece can rotate relative to the fixed seat;

[0011] When the pressing piece is at the second height, the pressing piece is pressed on the flexible heating piece, the first clamping piece and the second clamping piece are clamped, so that the pressing piece cannot rotate relative to the fixed seat.

[0012] According to the eave node provided by the utility model, the fixed seat comprises a fixing piece and a sleeve, the fixing piece is connected with the eave, the sleeve is connected with the fixing piece and is configured to be arranged with an open top downward;

[0013] The pressing piece comprises a pressing rod and a rotating shaft, the rotating shaft is arranged at one end of the pressing rod, the pressing rod is used for pressing on the flexible heating piece, the rotating shaft is inserted into the sleeve, and the elastic piece is arranged in the sleeve and abuts between the sleeve and the rotating shaft.

[0014] According to the eave node provided by the utility model, the first clamping piece is arranged on the peripheral wall of the sleeve, and the second clamping piece is arranged at one end of the pressing rod and located on one side of the rotating shaft.

[0015] According to the eave node provided by the utility model, the first clamping piece comprises a first tooth structure, the second clamping piece comprises a second tooth structure, and the first tooth structure is configured to be engaged with or separated from the second tooth structure.

[0016] According to the eave node provided by the utility model, the limiting mechanism further comprises a rotating piece and a guide rod;

[0017] The rotating piece and the guide rod are both arranged in the sleeve, the first end of the guide rod is connected with the rotating piece, the top end of the rotating shaft is provided with a guide groove extending along the axial direction of the rotating shaft, the second end of the guide rod is movably inserted into the guide groove, and the guide rod can rotate together with the rotating shaft;

[0018] The elastic piece comprises a spring, the spring is sleeved outside the guide rod, the first end of the spring abuts against the rotating piece, and the second end of the spring abuts against the top end of the rotating shaft.

[0019] According to the eave node provided by the utility model, the pressing rod comprises a clamping section and a connecting section,

[0020] The clamping section and the connecting section are connected, the connecting section is connected with the rotating shaft, and the clamping section is configured to be clamped on the flexible heating piece.

[0021] According to the present invention, a gutter node is provided, wherein the holding member further includes an elastic pad, the elastic pad being disposed on the side of the snap-fit ​​section facing the flexible heating element and being configured to contact the flexible heating element;

[0022] And / or, the holding member further includes a handle, which is located on the side of the snap-fit ​​section opposite to the flexible heating element.

[0023] According to the present invention, a gutter node is provided, wherein the flexible heating element includes a heat-conducting film and a heating element;

[0024] The thermally conductive film is laid along the length of the gutter on the bottom surface of the gutter, and the heating element is disposed inside the thermally conductive film.

[0025] According to the present invention, a gutter node is provided, wherein the bottom surface of the gutter includes a first region, a second region, and a third region;

[0026] The first region, the second region, and the third region are arranged along the width direction of the gutter. The heat-conducting film is laid in the second region. At least one of the first region and the third region is provided with a drain outlet. The drain pipe is connected to the drain outlet.

[0027] The gutter joint provided by this utility model, by setting up a drainage pipe, a flexible heating element, and a limiting mechanism based on the gutter, allows the flexible heating element to be laid in the gutter in a convenient manner by first setting the limiting mechanism to a second state, and then setting the limiting mechanism to a first state to confine the flexible heating element within the gutter, preventing displacement during use, reducing the risk of damage caused by displacement, and extending the service life of the flexible heating element. In practical applications, the heat emitted by the flexible heating element can be used to melt snow and ice that slides from the sloping roof into the gutter, and the melted water is discharged through the drainage pipe, effectively avoiding the adverse effects of snow accumulation on the roof and ice on the eaves on the building. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the gutter node provided by this utility model being arranged between two sloping roofs.

[0030] Figure 2 This utility model provides Figure 1 A top-down view.

[0031] Figure 3 This utility model provides Figure 1 Enlarged schematic diagram of the structure of section K in the middle.

[0032] Figure 4 This is an exploded view of the limiting mechanism provided by this utility model.

[0033] Figure 5 This is a schematic diagram of the pressing member provided by this utility model.

[0034] Figure label:

[0035] 100. Sloping roof;

[0036] 1. Gutter; 110. Drain outlet; 101. First zone; 102. Second zone; 103. Third zone; 2. Drain pipe; 3. Flexible heating element; 31. Heat-conducting film; 32. Heating element; 4. Limiting mechanism; 41. Fixing base; 4101. First locking component; 411. Fixing component; 412. Sleeve; 42. Elastic component; 43. Holding component; 4301. Second locking component; 431. Pressure rod; 4311. Locking section; 4312. Adapter section; 432. Rotating shaft; 4320. Guide groove; 433. Elastic pad; 434. Handle; 44. Rotating component; 45. Guide rod. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] The following is combined Figures 1-5 The gutter node provided by the utility model embodiment will be described in detail through specific embodiments and application scenarios.

[0039] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a gutter node, which is used to handle snow accumulation on a sloping roof 100. The gutter node includes: a gutter 1, a drain pipe 2, a flexible heating element 3, and a limiting mechanism 4.

[0040] The gutter 1 is configured to extend along the eaves of the sloping roof 100. The drain pipe 2 is connected to the gutter 1. The flexible heating element 3 and the limiting mechanism 4 are respectively installed in the gutter 1. The flexible heating element 3 extends along the extension direction of the gutter 1.

[0041] The limiting mechanism 4 has a first state and a second state. When the limiting mechanism 4 is in the first state, the limiting mechanism 4 and the flexible heating element 3 are connected to limit the flexible heating element 3 within the gutter 1. When the limiting mechanism 4 is in the second state, the limiting mechanism 4 and the flexible heating element 3 are separated.

[0042] Understandably, the gutter 1 is trough-shaped and is configured to be located between two adjacent sloping roofs 100. The groove edge on one side of the gutter 1 is connected to the eaves of one sloping roof 100, and the groove edge on the other side of the gutter 1 is connected to the eaves of the other sloping roof 100.

[0043] One end of the drain pipe 2 can be connected to the side wall or bottom of the gutter 1, and the other part of the drain pipe 2 extends to the lower side of the gutter 1. This design makes it easy for the water in the gutter 1 to be automatically discharged from the drain pipe 2 under its own gravity.

[0044] The flexible heating element 3 can be an electric heating element with a certain degree of flexibility, or it can be a flexible hose, through which a liquid medium such as hot water or heat transfer oil is introduced.

[0045] The limiting mechanism 4 can be a snap-fit ​​structure or clamping mechanism for fixing the flexible heating element 3. Multiple limiting mechanisms 4 can be set, and multiple limiting mechanisms 4 are arranged sequentially and spaced apart along the extension direction of the gutter 1 to fix different parts of the flexible heating element 3.

[0046] The gutter node shown in this utility model, by setting a drainage pipe 2, a flexible heating element 3, and a limiting mechanism 4 based on the gutter 1, allows the flexible heating element 3 to be conveniently laid in the gutter 1 by first setting the limiting mechanism 4 to the second state, and then setting the limiting mechanism 4 to the first state to confine the flexible heating element 3 in the gutter 1, preventing the flexible heating element 3 from shifting during use, reducing the risk of damage caused by the shift, and extending the service life of the flexible heating element 3. In practical applications, the heat emitted by the flexible heating element 3 can be used to melt the snow and ice that slides from the sloping roof 100 into the gutter 1. The melted water is discharged from the drainage pipe 2, which can effectively avoid the adverse effects of snow accumulation on the roof and ice on the eaves on the building.

[0047] In some embodiments, such as Figure 1 , Figure 3 and Figure 4As shown, the limiting mechanism 4 includes a fixed base 41, an elastic member 42, and a pressing member 43; the fixed base 41 is connected to the gutter 1, and the fixed base 41 is provided with a first locking member 4101; the first end of the pressing member 43 is provided with a second locking member 4301, and the first end of the pressing member 43 is vertically movable and disposed on the lower side of the fixed base 41, and is rotatably disposed with the fixed base 41; the elastic member 42 abuts between the fixed base 41 and the first end of the pressing member 43;

[0048] When the holding member 43 is at the first height, the holding member 43 separates from the flexible heating member 3, and the first locking member 4101 and the second locking member 4301 separate, so that the holding member 43 can rotate relative to the fixed base 41.

[0049] When the holding member 43 is at the second height, the holding member 43 presses against the flexible heating member 3, and the first locking member 4101 and the second locking member 4301 engage so that the holding member 43 cannot rotate relative to the fixed base 41.

[0050] Understandably, before laying the flexible heating element 3, the holding member 43 can be lifted upwards until it reaches a first height. At this height, the holding member 43 separates from the flexible heating element 3, and the first clamp 4101 and the second clamp 4301 separate. At this time, the holding member 43 can be controlled to rotate relative to the fixed base 41, so that the holding member 43 extends along the extension direction of the gutter 1, exposing the bottom area of ​​the gutter 1, so that the flexible heating element 3 can be laid in the bottom area of ​​the gutter 1.

[0051] After the flexible heating element 3 is laid, the holding member 43 can be rotated 90° relative to the fixed base 41 to ensure that the extension direction of the holding member 43 is perpendicular to the extension direction of the flexible heating element 3. The holding member 43 is moved downward until it falls from the first height to the second height. At this height, the holding member 43 presses on the flexible heating element 3, and the first locking member 4101 and the second locking member 4301 are engaged. Based on the engagement design between the first locking member 4101 and the second locking member 4301, the holding member 43 can be prevented from rotating relative to the fixed base 41, thereby reliably limiting the flexible heating element 3 and preventing the flexible heating element 3 from shifting in the gutter 1 during use.

[0052] In some embodiments, such as Figure 3 and Figure 4 As shown, the fixing base 41 includes a fixing member 411 and a sleeve 412. The fixing member 411 is connected to the gutter 1, and the sleeve 412 is connected to the fixing member 411 and is configured to be open and facing downward.

[0053] The holding member 43 includes a pressure rod 431 and a rotating shaft 432. The rotating shaft 432 is located at one end of the pressure rod 431. The pressure rod 431 is used to press against the flexible heating element 3. The rotating shaft 432 is inserted into the sleeve 412. The elastic element 42 is located in the sleeve 412 and abuts against the sleeve 412 and the rotating shaft 432.

[0054] Understandably, the fastener 411 is configured to be horizontal and connected to the groove wall of the gutter 1, and the sleeve 412 is vertically disposed below the fastener 411, with the open end of the sleeve 412 facing the rotating shaft 432.

[0055] Meanwhile, the pressure rod 431 is generally horizontally positioned, and the rotating shaft 432 is vertically positioned at one end of the pressure rod 431. The rotating shaft 432 is rotatably inserted into the sleeve 412, and can move vertically within the sleeve 412. Based on the insertion fit between the rotating shaft 432 and the sleeve 412, the pressing member 43 can stably and reliably rise, fall, and rotate relative to the fixed base 41.

[0056] Since the elastic element 42 abuts between the sleeve 412 and the rotating shaft 432, the elastic force of the elastic element 42 can be used to ensure that the pressure rod 431 is always pressed on the flexible heating element 3. This ensures the reliability of limiting the flexible heating element 3 and eliminates the need for additional power equipment to control the pressure rod 431 to press on the flexible heating element 3, thus reducing costs.

[0057] The elastic element 42 can be a spring sheet, an elastic rod, an elastic sleeve, or a spring.

[0058] In some embodiments, such as Figure 3 and Figure 4 As shown, the first locking member 4101 is provided on the peripheral wall of the sleeve 412, and the second locking member 4301 is provided on one end of the pressure rod 431 and located on one side of the rotating shaft 432.

[0059] For example, the first locking member 4101 can be an elastic locking tongue, and the second locking member 4301 can be a locking groove, wherein the elastic locking tongue can be engaged in the locking groove.

[0060] For example, such as Figure 3 and Figure 4 As shown, the first locking member 4101 includes a first toothed structure, and the second locking member 4301 includes a second toothed structure. The first toothed structure is configured to engage or disengage with the second toothed structure.

[0061] It is understandable that, since the first toothed structure is constructed on the peripheral wall of the sleeve 412 corresponding to the fixed seat 41, and the second toothed structure is constructed on one end of the pressure rod 431, when the pressure rod 431 is moved upward, the pressure rod 431 will cause the second toothed structure to separate from the first toothed structure, and when the pressure rod 431 is moved downward, the pressure rod 431 will cause the second toothed structure to engage with the first toothed structure.

[0062] The second toothed structure is configured to have an annular seat at its upper end, which is connected to the pressure rod 431.

[0063] In some embodiments, such as Figure 3 and Figure 4 As shown, the limiting mechanism 4 also includes a rotating member 44 and a guide rod 45; both the rotating member 44 and the guide rod 45 are disposed inside the sleeve 412, and the first end of the guide rod 45 is connected to the rotating member 44; the top end of the rotating shaft 432 is provided with a guide groove 4320, the guide groove 4320 extends along the axial direction of the rotating shaft 432, the second end of the guide rod 45 is movably inserted into the guide groove 4320, and the guide rod 45 can rotate together with the rotating shaft 432;

[0064] The elastic element 42 includes a spring, which is sleeved on the outside of the guide rod 45. The first end of the spring abuts against the rotating element 44, and the second end of the spring abuts against the top end of the rotating shaft 432.

[0065] It is understood that the rotating member 44 can be configured as a ball or a disk, and the diameter of the rotating member 44 is adapted to the inner diameter of the sleeve 412 to ensure that the rotating member 44 can be rotatably disposed inside the sleeve 412 around the central axis of the sleeve 412.

[0066] Meanwhile, the guide rod 45 has a first limiting part on its peripheral wall and a second limiting part on the inner wall of the guide groove 4320. When the guide rod 45 is inserted into the guide groove 4320, the first limiting part and the second limiting part slide together along the axial direction of the rotating shaft 432, and the first limiting part and the second limiting part abut against each other along the circumferential direction of the rotating shaft 432, so as to ensure that the second end of the guide rod 45 is movably inserted into the guide groove 4320. The guide rod 45 cannot rotate relative to the rotating shaft 432, but can rotate together with the rotating shaft 432.

[0067] For example, the guide rod 45 can be configured as a rectangular rod, the guide groove 4320 is a rectangular groove adapted to the rectangular rod, the first limiting part is four external corner structures formed on the peripheral wall of the rectangular rod, and the second limiting part is four internal corner structures formed on the inner wall of the guide groove 4320, with the four external corner structures and the four internal corner structures being set in a one-to-one correspondence.

[0068] In some embodiments, such as Figure 4 and Figure 5As shown, the pressure rod 431 includes a snap-fit ​​section 4311 and a transition section 4312. The snap-fit ​​section 4311 and the transition section 4312 are connected, and the transition section 4312 is connected to the rotating shaft 432. The snap-fit ​​section 4311 is configured to snap onto the flexible heating element 3.

[0069] Understandably, the snap-fit ​​section 4311 has a "U" shaped structure to form a snap-fit ​​opening on the snap-fit ​​section 4311, and the snap-fit ​​width of the snap-fit ​​opening is adapted to the width of the flexible heating element 3; the adapter section 4312 is connected to one end of the snap-fit ​​section 4311, the adapter section 4312 is configured to extend in the horizontal direction, and the rotating shaft 432 is configured to extend in the vertical direction.

[0070] Thus, when the flexible heating element 3 is limited by the pressure rod 431, the snap-fit ​​section 4311 presses against the upper side of the flexible heating element 3, and the snap-fit ​​section 4311 snaps the flexible heating element 3 through the snap-fit, which can effectively prevent the flexible heating element 3 from shifting in the gutter 1.

[0071] In some embodiments, such as Figure 4 and Figure 5 As shown, the holding member 43 also includes an elastic pad 433, which is disposed on the side of the snap-fit ​​section 4311 facing the flexible heating element 3 and is configured to contact the flexible heating element 3.

[0072] It is understandable that the elastic pad 433 can be a silicone pad or a rubber pad, and the elastic pad 433 is located at the corresponding snap-fit ​​opening of the snap-fit ​​section 4311.

[0073] Based on the setting of the elastic pad 433, it is ensured that the holding member 43 is in flexible contact with the flexible heating element 3 through the elastic pad 433. This design not only avoids contact damage to the flexible heating element 3 caused by the holding member 43, but also ensures that the snap-fit ​​section 4311 of the holding member 43 is in close contact with the flexible heating element 3, thereby ensuring the reliability of the limit of the flexible heating element 3.

[0074] In some embodiments, such as Figure 4 and Figure 5 As shown, the holding member 43 also includes a handle 434, which is located on the side of the snap-fit ​​section 4311 away from the flexible heating element 3. This design makes it easy for the operator to hold the handle 434 and apply force to the holding member 43 based on the handle 434, thereby operating the holding member 43 to lift and rotate.

[0075] In some embodiments, such as Figure 1 and Figure 2 As shown, the flexible heating element 3 includes a heat-conducting film 31 and a heating element 32; the heat-conducting film 31 is laid on the bottom surface of the gutter 1 along the length direction of the gutter 1, and the heating element 32 is disposed inside the heat-conducting film 31.

[0076] It is understandable that the thermal conductive film 31 is made of a film material with certain flexibility and insulation properties. For example, the thermal conductive film 31 can be a flexible composite phase change material film, a polyvinylidene fluoride (PVDF) based composite film, or a polyimide (PI) composite film.

[0077] Among them, the flexible composite phase change material film uses boron nitride (BN) as a thermally conductive filler to load organic phase change materials into a porous polyvinylidene fluoride (PVDF)-boron nitride film; the polyvinylidene fluoride (PVDF)-based composite film is a composite film prepared by adding fillers such as boron nitride to PVDF as a matrix; and the polyimide (PI) composite film is a composite film prepared by adding graphene oxide (GO) nanosheets and hexagonal boron nitride (h-BN) as fillers to a polyimide matrix.

[0078] In practical applications, the thermally conductive film 31 can also be a composite film prepared by adding conductive ink and metal current-carrying strips as fillers to an insulating polyester film. By covering the heating element 32 with the thermally conductive film 31, the heating area of ​​the heating element 32 can be increased, which is beneficial for the heat of the heating element 32 to be evenly transferred to the snow through the thermally conductive film 31, thus enhancing the snow melting effect.

[0079] The heating element 32 extends along the extension direction of the heat-conducting film 31. The heating element 32 can be a heating cable. A heating cable is a device that converts electrical energy into heat energy and is widely used in heating, pipe insulation, snow melting and de-icing and other fields. The heating cable is mainly composed of a heating element, an insulation layer and a sheath. Depending on the heating element, the heating cable can be a self-regulating heating cable, a constant power heating cable or a carbon fiber heating cable.

[0080] The heating cable is configured to connect to a control device, which can control the heating temperature of the heating cable by controlling the current supplied to it. In practical applications, a temperature sensor can also be installed inside the gutter 1 to detect the temperature of the heat-conducting film 31. Based on the temperature information fed back by the temperature sensor, the control device controls the working state of the heating cable to keep the temperature of the heat-conducting film 31 within a set temperature range.

[0081] Furthermore, such as Figure 1 and Figure 2 As shown, multiple heating elements 32 can be provided, with the multiple heating elements 32 spaced apart from each other and arranged side by side in the heat-conducting film 31 along the width direction of the heat-conducting film 31.

[0082] In some embodiments, such as Figure 1 and Figure 2As shown, the bottom surface of the gutter 1 includes a first region 101, a second region 102 and a third region 103; the first region 101, the second region 102 and the third region 103 are arranged along the width direction of the gutter 1, the heat-conducting film 31 is laid in the second region 102, at least one of the first region 101 and the third region 103 is provided with a drain outlet 110, and the drain pipe 2 is connected to the drain outlet 110.

[0083] Specifically, both the first area 101 and the third area 103 are provided with multiple drainage outlets 110. The multiple drainage outlets 110 in the first area 101 or the third area 103 are arranged sequentially at intervals along the extension direction of the gutter 1. Each drainage outlet 110 is connected to a drainage pipe 2 located on the lower side of the gutter 1. This design results in two rows of drainage pipes 2 being set on the lower side of the gutter, with the two rows of drainage pipes 2 being set in a one-to-one correspondence.

[0084] The drain pipe 2 can be configured to extend vertically to discharge the melted snow water from the gutter 1.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A gutter node, characterized in that, include: Gutters, drainage pipes, flexible heating elements, and limiting mechanisms; The gutter is configured to extend along the eaves of the sloping roof. The drain pipe is connected to the gutter. The flexible heating element and the limiting mechanism are respectively located in the gutter. The flexible heating element extends along the extension direction of the gutter. The limiting mechanism has a first state and a second state. When the limiting mechanism is in the first state, the limiting mechanism and the flexible heating element are connected to confine the flexible heating element within the gutter. When the limiting mechanism is in the second state, the limiting mechanism and the flexible heating element are separated.

2. The gutter node according to claim 1, characterized in that, The limiting mechanism includes a fixed base, an elastic element, and a pressing element; The fixing base is connected to the gutter, and the fixing base is provided with a first locking member; the first end of the pressing member is provided with a second locking member, and the first end of the pressing member is vertically and vertically disposed on the lower side of the fixing base, and is rotatably disposed with the fixing base; the elastic member abuts between the fixing base and the first end of the pressing member; When the holding member is at the first height, the holding member separates from the flexible heating element, and the first clip and the second clip separate, so that the holding member can rotate relative to the fixed base; When the holding member is at the second height, the holding member presses against the flexible heating element, and the first and second locking members engage so that the holding member cannot rotate relative to the fixed base.

3. The gutter node according to claim 2, characterized in that, The fixing base includes a fixing member and a sleeve. The fixing member is connected to the gutter, and the sleeve is connected to the fixing member and is configured to be open and facing downward. The holding member includes a pressure rod and a rotating shaft. The rotating shaft is located at one end of the pressure rod. The pressure rod is used to press against the flexible heating element. The rotating shaft is inserted into the sleeve. The elastic element is located in the sleeve and abuts against the sleeve and the rotating shaft.

4. The gutter node according to claim 3, characterized in that, The first locking member is located on the peripheral wall of the sleeve, and the second locking member is located at one end of the pressure rod and on one side of the rotating shaft.

5. The gutter node according to claim 4, characterized in that, The first locking member includes a first toothed structure, and the second locking member includes a second toothed structure, wherein the first toothed structure is configured to engage or disengage with the second toothed structure.

6. The gutter node according to claim 3, characterized in that, The limiting mechanism also includes a rotating component and a guide rod; Both the rotating component and the guide rod are disposed within the sleeve. The first end of the guide rod is connected to the rotating component. The top end of the rotating shaft is provided with a guide groove, which extends along the axial direction of the rotating shaft. The second end of the guide rod is movably inserted into the guide groove, and the guide rod can rotate together with the rotating shaft. The elastic element includes a spring, which is sleeved on the outside of the guide rod. The first end of the spring abuts against the rotating element, and the second end of the spring abuts against the top end of the rotating shaft.

7. The gutter node according to claim 3, characterized in that, The pressure bar includes a snap-fit ​​section and a transition section. The snap-fit ​​section is connected to the adapter section, and the adapter section is connected to the rotating shaft; the snap-fit ​​section is configured to snap onto the flexible heating element.

8. The gutter node according to claim 7, characterized in that, The holding member further includes an elastic pad, which is disposed on the side of the snap-fit ​​section facing the flexible heating element and is configured to contact the flexible heating element; And / or, the holding member further includes a handle, which is located on the side of the snap-fit ​​section opposite to the flexible heating element.

9. The gutter node according to any one of claims 1 to 8, characterized in that, The flexible heating element includes a thermally conductive film and a heating element; The thermally conductive film is laid along the length of the gutter on the bottom surface of the gutter, and the heating element is disposed inside the thermally conductive film.

10. The gutter node according to claim 9, characterized in that, The bottom surface of the gutter includes a first region, a second region, and a third region; The first region, the second region, and the third region are arranged along the width direction of the gutter. The heat-conducting film is laid in the second region. At least one of the first region and the third region is provided with a drain outlet. The drain pipe is connected to the drain outlet.

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