Tail end water drainage and air exhaust assembly and heating water distribution and collection device pipeline system

Abstract

The utility model relates to the field of pipe fittings, and provides a tail end water draining and air exhausting assembly and a heating water distributing and collecting device pipeline system.The tail end water draining and air exhausting assembly comprises a shell, an air exhausting assembly and a water draining valve assembly; the shell comprises a pipe connecting part, an exhaust part and a water drainage part which are communicated with one another and are communicated with the outside; the exhaust assembly is arranged in the exhaust part; the exhaust assembly is configured as follows: when the water level is high in the shell, the buoy is located at a high point and has no downward pressure or small downward pressure on the pressing sheet, and at the moment, the water stop pad is located at a high position to seal the exhaust hole; when the water level is low, the buoy is located at the low position, downward pressure is applied to the pressing piece under the action of the limiting piece, at the moment, the water stop pad moves downwards under the action of the downward pressure of the buoy, the exhaust hole is not sealed any more, and exhaust is achieved. The assembly provided by the utility model can realize automatic exhaust, and has the advantages of few parts, low cost and small water leakage risk.

Description

Technical Field

[0001] This utility model relates to the field of pipe fittings technology, and more specifically, to an end-drain and venting assembly and a heating manifold piping system. Background Technology

[0002] The existing technology is that the terminal components of the heating manifold are separate, and the air vent and drain parts are connected to the main body tee part by threads, which has multiple leakage points. In addition, it requires many parts, the overall product is heavy, and the cost is high.

[0003] The existing heating manifold terminal components have solid cylindrical air vent floats, which are prone to tilting during air venting and may fail to return to their original position for sealing.

[0004] The air vent valve retainer of the existing heating manifold terminal components is made of bent stainless steel wire, which is prone to deformation and failure, causing the float to deviate and lose its sealing effect.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] The purpose of this invention is to provide an end-of-line drain and vent assembly and a heating manifold piping system, which aims to improve at least one of the problems mentioned in the background art.

[0007] The embodiments of this utility model can be implemented as follows:

[0008] In a first aspect, this utility model provides an end-of-line drain and vent assembly, including a housing, an vent assembly, and a drain valve assembly;

[0009] The shell includes interconnected pipe sections, venting sections, and drainage sections that are all connected to the outside.

[0010] The exhaust assembly is located inside the exhaust section;

[0011] The exhaust assembly includes a buoy, control components, and a mounting cover;

[0012] The buoy includes a cylindrical body and a hook. The hook is located at the top of the cylindrical body, and a limiting element is provided on each of the opposite sides of the hook near the hook tip.

[0013] The control component includes a pressure plate and two connecting ears. The two connecting ears are symmetrically connected to the edges of opposite sides of the pressure plate. The pressure plate is provided with a slide groove that allows the hook and the limiting member to pass through. During assembly, after the hook and the limiting member pass through the slide groove, the hook moves along the length of the slide groove, and the limiting member is limited on the pressure plate and will not fall out of the slide groove.

[0014] A water-stop pad is provided on one side of the pressing plate, and an installation hole is provided at the end of each connecting lug;

[0015] The fixing cover is located at the end of the exhaust section. One side of the fixing cover is provided with two connecting feet and an exhaust column. Each connecting foot is provided with a clip. The two clips are inserted into the mounting holes of the two connecting ears in a corresponding manner. An exhaust hole is provided on the exhaust column.

[0016] The drain valve assembly is located at the drain section;

[0017] The venting assembly is configured such that: when the water level is high inside the housing, the float is at the highest point, exerting no or little downward pressure on the pressure plate, and the water-stop pad is at the high position to seal the vent hole; when the water level is low, the float is at the lowest position, exerting downward pressure on the pressure plate under the action of the limiting component, and the water-stop pad moves down under the action of the float's downward pressure, no longer sealing the vent hole, thus achieving venting.

[0018] In an optional embodiment, the end drain and vent assembly further includes a vent cover, which is installed on the housing at the position corresponding to the venting part. The vent hole is connected to the vent cover, and an vent valve is provided on the side wall of the vent cover.

[0019] In an optional implementation, the vent valve includes a vent nozzle, a threaded cap, and a vent gasket;

[0020] The exhaust nozzle is connected to the outer wall of the exhaust cover. The outer wall of the end of the exhaust nozzle away from the exhaust cover is provided with external threads. The inner wall of the threaded cover is provided with internal threads. The threaded cover is connected to the exhaust nozzle by threads. An exhaust gasket is provided between the threaded cover and the exhaust nozzle.

[0021] In an optional embodiment, the outer wall of the cylindrical body is provided with uniformly distributed water inlet grooves, the center is provided with a bottom wall water inlet cavity that penetrates the cylindrical body, and the upper part is provided with a water inlet channel that is symmetrical about the central axis of the cylindrical body and connects to the water inlet cavity, and the water inlet channel penetrates the side wall of the cylindrical body.

[0022] In an optional embodiment, the outer wall of the connector is provided with connecting threads and fitted with a sealing ring and a union lock nut.

[0023] In an optional embodiment, the drain valve assembly includes a drain assembly and a valve assembly;

[0024] The drainage assembly includes a connecting cover and a drain nozzle. One end of the connecting cover is threaded to the corresponding position of the drainage part on the housing, and one end of the connecting cover is threaded to one end of the drain nozzle.

[0025] The valve assembly includes a valve ball, a valve stem, a connecting screw, and a handle. The valve ball is located inside the drain section and has a groove. One end of the valve stem is inserted into the groove and connected to the handle via the connecting screw. The valve ball has a drain hole. By operating the handle, the drain hole on the valve ball can be connected to the connecting cover and the drain nozzle to form a drain channel.

[0026] In an optional embodiment, the drainage assembly further includes a plug and a connecting strap. One end of the connecting strap is fitted onto the outer wall of the connecting cover, and the other end is connected to the plug. The inner wall of the plug has internal threads, which can be threadedly connected to the outer wall of the connecting cover at the end away from the housing.

[0027] In an optional embodiment, the inner diameter of the exhaust section is D, and the diameter of the buoy is d, where 1mm ≤ (Dd) ≤ 2.5mm;

[0028] And / or, the space in which the buoy moves up and down within the exhaust section is 3~12mm.

[0029] In an optional embodiment, the tablet is provided with a mounting groove, and the water-stop pad is confined within the mounting groove.

[0030] Secondly, this utility model provides a heating manifold piping system, including an end drain and vent assembly as described in any of the foregoing embodiments.

[0031] The beneficial effects of the end-of-line drainage and venting assembly and heating manifold piping system provided in this embodiment of the invention include:

[0032] The specific structural design of the venting assembly enables automatic venting, and after venting, it can return to its sealed position, exhibiting good structural stability and being less prone to failure and leakage. By integrating the drain valve assembly and the venting assembly onto the housing, compared to separate venting and draining assemblies, this embodiment requires fewer parts, reduces the risk of leakage, and results in a lighter and lower-cost overall product. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the end-of-pipe drainage and venting assembly provided in this embodiment;

[0035] Figure 2 This is a cross-sectional view of the end-drain and exhaust assembly provided in this embodiment;

[0036] Figure 3 This is a sectional view of the shell;

[0037] Figure 4 This is a schematic diagram of the exhaust assembly.

[0038] Figure 5 This is a cross-sectional view of the exhaust assembly;

[0039] Figure 6 This is a schematic diagram of the buoy's structure;

[0040] Figure 7 This is a sectional view of the cylindrical body.

[0041] Figure 8 This is a structural schematic diagram of the control component;

[0042] Figure 9 This is a schematic diagram of the structure of the fixed cover.

[0043] Icons: 100 - End drain and vent assembly; 110 - Housing; 111 - Connecting pipe; 112 - Vent section; 113 - Drain section; 114 - Connecting thread; 115 - Sealing ring; 116 - Union lock nut; 120 - Vent assembly; 121 - Buoy; 122 - Cylindrical body; 123 - Hook; 124 - Limiting element; 125 - Water inlet groove; 126 - Water inlet cavity; 127 - Water inlet channel; 130 - Control element; 131 - Pressure plate; 132 - Water stop pad; 133 - Slide groove; 134 - Connecting lug ; 135-Mounting hole; 136-Mounting groove; 140-Fixing cover; 141-Connecting foot; 142-Exhaust column; 143-Clamp; 144-Exhaust hole; 150-Drain valve assembly; 151-Connecting cover; 152-Drain nozzle; 153-Plug; 161-Valve ball; 162-Valve stem; 163-Connecting screw; 164-Handle; 165-Drain hole; 166-Connecting strap; 180-Exhaust cover; 190-Exhaust valve; 191-Exhaust nozzle; 192-Threaded cover; 193-Exhaust gasket. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0046] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0047] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0048] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0049] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0050] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides an end drain and vent assembly 100, which includes a housing 110, an vent assembly 120, and a drain valve assembly 150.

[0051] like Figure 3 As shown, the housing 110 includes a pipe section 111, an exhaust section 112, and a drain section 113 that are interconnected and all communicate with the outside.

[0052] like Figure 2 As shown, the exhaust assembly 120 is disposed within the exhaust section 112;

[0053] like Figure 2 Figure 4 and Figure 5 As shown, the exhaust assembly 120 includes a buoy 121, a control element 130, and a fixed cover 140;

[0054] like Figures 4 to 7 As shown, the buoy 121 includes a cylindrical body 122 and a hook 123. The hook 123 is disposed on the top of the cylindrical body 122, and a limiting member 124 is provided on each of the opposite sides of the hook 123 near the hook tip.

[0055] like Figure 8 and Figure 9 As shown, the control component 130 includes a pressure plate 131 and two connecting ears 134. The two connecting ears 134 are symmetrically connected to the edges of opposite sides of the pressure plate 131. The pressure plate 131 is provided with a slide groove 133 through which the hook 123 and the limiting member 124 can pass. So that during assembly, after the hook 123 and the limiting member 124 pass through the slide groove 133, the hook 123 moves along the length direction of the slide groove 133, and the limiting member 124 can be limited on the pressure plate 131 and will not fall off from the slide groove 133.

[0056] A water-stop pad 132 is provided on one side of the pressure plate 131, and a mounting hole 135 is provided at the end of each connecting ear 134;

[0057] The fixing cover 140 is located at the end of the exhaust section 112. One side of the fixing cover 140 is provided with two connecting feet 141 and an exhaust column 142. Each connecting foot 141 is provided with a clip 143. The two clips 143 are inserted into the mounting holes 135 of the two connecting ears 134 respectively. The exhaust column 142 is provided with an exhaust hole 144.

[0058] The drain valve assembly 150 is located at the drain section 113;

[0059] The venting assembly 120 is configured such that: when the water level is high inside the housing 110, the float 121 is at the highest point, exerting no or little downward pressure on the pressure plate 131, and the water-stop pad 132 is at the high position, sealing the vent hole 144; when the water level is low, the float 121 is at the lowest position, exerting downward pressure on the pressure plate 131 under the action of the limiting member 124, and the water-stop pad 132 moves down under the action of the downward pressure of the float 121, no longer sealing the vent hole 144, thus achieving venting.

[0060] The end-drain venting assembly 100 provided in this embodiment is connected to the pipe end via a connecting pipe 111. When there is little gas in the assembly, the water level in the venting section 112 is high, the float 121 is at its highest point, and there is little or no downward pressure on the pressure plate 131. At this time, the water-stop pad 132 is at a high position, sealing the vent hole 144. When there is a lot of gas in the assembly, the water level in the venting section 112 is low, the float 121 is at a low position, and under the action of the limiting member 124, it exerts downward pressure on the pressure plate 131. At this time, the water-stop pad 132 moves downward under the downward pressure of the float 121 and no longer seals the vent hole 144, thus achieving venting. The specific structural design of the venting assembly 120 enables automatic venting, and after venting, it can return to its sealed position. It has good structural stability and is not prone to failure or leakage. When it is necessary to drain water from the pipe, the drain valve assembly 150 is opened to drain water from the pipe. The end drain and vent assembly 100 provided in this embodiment integrates the drain valve assembly 150 and the vent assembly 120 on the housing 110. Compared with the separate arrangement of the vent and drain assemblies, this structure in this embodiment requires relatively fewer parts, has a lower risk of leakage, and the overall product is lightweight and low in cost.

[0061] Optionally, such as Figures 5 to 7 As shown, the outer wall of the cylindrical body 122 is provided with evenly distributed water inlet grooves 125, the center is provided with a bottom wall water inlet cavity 126 that penetrates the cylindrical body 122, and the upper part is provided with a water inlet channel 127 that is symmetrical about the central axis of the cylindrical body 122 and connects to the water inlet cavity 126. The water inlet channel 127 penetrates the side wall of the cylindrical body 122.

[0062] The water inlet groove 125, water inlet cavity 126 and water inlet channel 127 on the cylindrical body 122 can ensure that the buoyancy of the float 121 is more uniform, thereby avoiding the problem that the float 121 will tilt during exhaust and fail to return to its original position to seal.

[0063] Optionally, to ensure that the buoy 121 moves smoothly and does not fall off the pressure plate 131, the inner diameter of the vent 112 is D, and the diameter of the buoy 121 is d, where 1mm ≤ (Dd) ≤ 2.5mm.

[0064] Optionally, the vertical movement height H of the buoy 121 within the exhaust section 112 is 3~12mm. To ensure better exhaust performance, H is 5~8mm.

[0065] Alternatively, the buoy 121 may be made of a plastic material with a density less than that of water, such as PP.

[0066] Specifically, the limiting member 124 is cylindrical and the slide groove 133 is cross-shaped. During assembly, the two limiting members 124 pass through the corresponding horizontal part of the cross in the slide groove 133. Then the hook 123 and the pressure plate 131 move relative to each other, causing the limiting member 124 to deviate from the position of passing through the slide groove 133 and be limited on the pressure plate 131.

[0067] Specifically, such as Figure 8 As shown, the tablet 131 is provided with an installation groove 136, and the water-stop pad 132 is confined within the installation groove 136.

[0068] Optionally, the control element 130 is made of a metal sheet by stamping, which provides better stability.

[0069] Furthermore, such as Figure 9 As shown, the end drain and vent assembly 100 also includes a vent cover 180, which is placed on the housing 110 at the position corresponding to the vent section 112. The vent hole 144 is connected to the vent cover 180, and the side wall of the vent cover 180 is provided with a vent valve 190.

[0070] The exhaust cap 180 is designed to protect the exhaust assembly 120.

[0071] Furthermore, such as Figures 1 to 3 As shown, the exhaust valve 190 includes an exhaust nozzle 191, a threaded cap 192, and an exhaust gasket 193. The exhaust nozzle 191 is connected to the outer wall of the exhaust cap 180. The outer wall of the end of the exhaust nozzle 191 away from the exhaust cap 180 is provided with an external thread. The inner wall of the threaded cap 192 is provided with an internal thread. The threaded cap 192 is connected to the exhaust nozzle 191 by a thread. The exhaust gasket 193 is disposed between the threaded cap 192 and the exhaust nozzle 191.

[0072] The above settings enable the vent cover 180 to be sealed when the threaded cover 192 is tightened, preventing further venting, and the venting function to be activated when the threaded cover 192 is loosened.

[0073] Optionally, the outer wall of the connecting pipe 111 is provided with a connecting thread 114 and fitted with a sealing ring 115 and a union lock nut 116. The connecting thread 114, the sealing ring 115 and the union lock nut 116 facilitate connection with the pipe at the end of the heating manifold.

[0074] Optionally, the drain valve assembly 150 includes a drain assembly and a valve assembly;

[0075] The drain assembly includes a connecting cover 151 and a drain nozzle 152. One end of the connecting cover 151 is threaded to the housing 110 at the position corresponding to the drain part 113, and one end of the connecting cover 151 is threaded to one end of the drain nozzle 152.

[0076] The valve assembly includes a valve ball 161, a valve stem 162, a connecting screw 163, and a handle 164. The valve ball 161 is disposed in the drain section 113 and has a groove. One end of the valve stem 162 is inserted into the groove and is connected to the handle 164 via the connecting screw 163. The valve ball 161 has a drain hole 165. By operating the handle 164, the drain hole 165 on the valve ball 161 can be connected to the connecting cover 151 and the drain nozzle 152 to form a drain channel.

[0077] When drainage is not required, the plug 153 is installed at the end of the drain nozzle 152. When drainage is required, the plug 153 is removed. The above-mentioned configuration of the drain valve assembly 150 enables drainage of the end pipe of the heating manifold.

[0078] Optionally, the outer wall of the drain nozzle 152 is provided with a multi-ringed raised structure to facilitate connection of the hose.

[0079] Optionally, the drain assembly also includes a plug 153 and a connecting strap 166. One end of the connecting strap 166 is fitted onto the outer wall of the connecting cover 151, and the other end is connected to the plug 153. The inner wall of the plug 153 has internal threads, which can be threaded to the outer wall of the end of the connecting cover 151 away from the housing 110. When drainage is not required via the connecting hose, the drain nozzle 152 can be omitted, and the plug 153 can be screwed onto the connecting cover 151 to protect the valve assembly.

[0080] Furthermore, the end drain and vent assembly 100 provided in this embodiment has sealing gaskets or O-rings between the connections of multiple parts to seal the valve body and prevent water and air leakage.

[0081] This utility model embodiment also provides a heating manifold piping system, including the terminal drain and vent assembly 100 provided in this utility model embodiment.

[0082] In summary, this utility model has the following characteristics:

[0083] 1) Integrated design, simple structure, and fewer leakage points;

[0084] 2) The overall structure is compact, with fewer parts, light weight, and low cost;

[0085] 3) The gap between the buoy 121 and the inner wall of the exhaust section 112 is small, resulting in a stable structure;

[0086] 4) The water inlet control, water inlet chamber 126 and water inlet channel 127 on the buoy 121 can make the buoy 121 float smoothly when it moves up and down;

[0087] 5) The control component 130 is made of metal sheet by stamping, which has good stability.

[0088] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. An end drain vent assembly, comprising: The shell, the exhaust assembly and the drain valve assembly are included; The shell includes a pipe connection part, an exhaust part and a drain part which are communicated with each other and with the outside; The exhaust assembly is arranged in the exhaust part; The exhaust assembly includes a float, a control part and a fixed cover; The float includes a cylindrical body and a hook arranged on the top of the cylindrical body, and opposite sides of the hook near the hook tip are respectively provided with a limiting part; The control part includes a pressing sheet and two connecting ears which are symmetrically connected to the edges of opposite sides of the pressing sheet, and the pressing sheet is provided with a sliding slot through which the hook and the limiting part pass, so that when assembled, the hook is moved along the length direction of the sliding slot after passing through the sliding slot, and the limiting part can be limited on the pressing sheet and cannot be taken off from the sliding slot; One side of the pressing sheet is provided with a water stop pad, and the end of each connecting ear is provided with a mounting hole; The fixed cover is arranged at the end of the exhaust part, one side of the fixed cover is provided with two connecting feet and an exhaust column, each connecting foot is provided with a clamping part, and the two clamping parts are correspondingly clamped into the mounting holes of the two connecting ears; and the exhaust column is provided with an exhaust hole; The drain valve assembly is arranged at the drain part; The exhaust assembly is configured such that in the shell, when the water level is high, the float is at a high point, the pressing sheet has no or small downward pressure, and at this time, the water stop pad is at a high position to seal the exhaust hole; when the water level is low, the float is at a low position, the pressing sheet has downward pressure under the action of the limiting part, at this time, the water stop pad moves downward under the action of the downward pressure of the float, and no longer seals the exhaust hole, thereby achieving exhaust.

2. The tip drain vent assembly of claim 1, wherein, The end drain exhaust assembly further includes an exhaust cover arranged at the position of the exhaust part of the shell, the exhaust hole is communicated with the exhaust cover, and the side wall of the exhaust cover is provided with an exhaust valve.

3. The tip drain vent assembly of claim 2, wherein, The exhaust valve includes an exhaust nozzle, a threaded cover and an exhaust gasket; The exhaust nozzle is connected to the outer side wall of the exhaust cover, the outer wall of the end of the exhaust nozzle away from the exhaust cover is provided with external threads, the inner wall of the threaded cover is provided with internal threads, the threaded cover is connected to the exhaust nozzle through threads, and the exhaust gasket is arranged between the threaded cover and the exhaust nozzle.

4. The tip drain vent assembly of claim 1, wherein, The outer wall of the cylindrical body is provided with uniformly distributed water inlet grooves, the center is provided with a water inlet cavity penetrating the bottom wall of the cylindrical body, the upper part is provided with a water inlet flow channel which is symmetrical about the central axis of the cylindrical body and is communicated with the water inlet cavity, and the water inlet flow channel penetrates the side wall of the cylindrical body.

5. The tip drain vent assembly of claim 1, wherein, The outer wall of the pipe connection part is provided with a connecting thread, and a sealing rubber ring and a union lock female are sleeved.

6. The tip drain vent assembly of claim 1, wherein, The drain valve assembly includes a drain assembly and a valve assembly; The drain assembly includes a connecting cover and a drain nozzle, one end of the connecting cover is threadedly connected to the shell at the position corresponding to the drain part, and one end of the connecting cover is threadedly connected to one end of the drain nozzle. The valve assembly comprises a valve ball, a valve rod, a connecting screw and a handle, the valve ball is arranged in the drain part, a clamping groove is arranged on the valve ball, one end of the valve rod is inserted into the clamping groove, one end of the valve rod is connected with the handle through the connecting screw, a drain hole is arranged on the valve ball, and the drain hole on the valve ball is communicated with the connecting cover and the drain nozzle to form a drain channel by controlling the handle.

7. The tip drain vent assembly of claim 6, wherein, The drain assembly further comprises a plug and a connecting belt, one end of the connecting belt is sleeved on the outer wall of the connecting cover, the other end is connected with the plug, the inner wall of the plug is provided with internal threads, and the outer wall of the end of the connecting cover away from the shell is threadedly connected.

8. The tip drain vent assembly of claim 1, wherein, The inner diameter of the exhaust part is D, the diameter of the float is d, and 1mm≤(D-d)≤2.5mm; And / or, the space height of the float moving up and down in the exhaust part is 3-12mm.

9. The tip drain vent assembly of claim 1, wherein, The gasket is limited in the mounting groove.

10. A hydronic district collector piping system, comprising: The end drain exhaust assembly comprises the end drain exhaust assembly according to any one of claims 1-9. The gasket is limited in the mounting groove.

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