Mechanical automatic drainer

Abstract

The utility model provides a mechanical automatic drainer which comprises a storage assembly, a floater and a plurality of drainage assemblies, the storage assembly is provided with a drainage port and a ventilation port, each drainage assembly comprises a branch pipe, a sliding sleeve, a siphon and a cover plate, and the bottom end of the branch pipe is provided with a water inlet hole. The cover plate is connected to the water inlet end of the siphon in an openable and closable mode through an elastic piece. Therefore, when the floater ascends along with the liquid level, the sliding sleeve is driven to slide upwards, the sliding sleeve drives the cover plate to be opened and communicated with the water inlet end of the siphon, the storage assembly is in a drainage state, and when the liquid level is higher than the top of the siphon, accumulated water is gradually drained under the siphon principle, and the self-drainage effect is achieved. When the floater descends along with the liquid level, the sliding sleeve is driven to slide down and be separated from the siphon, the cover plate seals the water inlet end of the siphon under the elastic action, the storage assembly is in an air storage state so as to avoid compressed air leakage, the whole process is in mechanical cooperation and does not depend on manpower and electric appliances, automation is high, drainage timeliness is guaranteed, and the system operation stability is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of compressed air drainage technology, and in particular to a mechanical automatic drainer. Background Technology

[0002] In the production and transmission of compressed air, water vapor in the air easily condenses into liquid water due to factors such as temperature changes. If this liquid water is not discharged in time, it will enter downstream pneumatic tools, cylinders, solenoid valves, and other equipment along with the compressed air, leading to a series of problems: on the one hand, it will accelerate the wear and tear of the equipment, causing equipment malfunctions and seriously affecting the normal service life and operating performance of the equipment; on the other hand, it will reduce the quality of the compressed air, weaken its transmission efficiency, and cause an unreasonable increase in energy consumption, which is not conducive to the energy-saving and stable operation of the compressed air system.

[0003] In the existing technology, the method of manually draining water periodically has obvious drawbacks: the operation is often not timely enough, it is difficult to deal with the situation where liquid water is generated in the system at any time, and the drainage is not thorough. The residual liquid water can still have an adverse effect on the system, which can easily cause system failure and bring hidden dangers to industrial production.

[0004] Therefore, it is necessary to propose a mechanical automatic drainer to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main objective of this invention is to provide a mechanical automatic drainer to solve the problems of incomplete and untimely drainage caused by manual drainage in the prior art.

[0006] To achieve the above objectives, this utility model provides a mechanical automatic drainer, including a storage component, a float, and a plurality of draining components arranged at circumferential intervals along the float; wherein,

[0007] The storage component has a drain outlet and a vent for communicating with a compressed air storage tank, and the float is vertically movably built into the storage component;

[0008] Each drainage assembly includes a branch pipe, a sliding sleeve, a siphon pipe, and a cover plate. The bottom end of the branch pipe is connected to the bottom end of the storage assembly and has a water inlet. The outlet end of the siphon pipe extends beyond the drain outlet and is positioned below the water inlet. The inlet ends of the siphon pipes are spaced apart and directly above the top of the branch pipe. The cover plate is elastically connected to the inlet end of the siphon pipe. The sliding sleeve is vertically slidably fitted onto the branch pipe, and the float is connected to the sliding sleeve.

[0009] When the float rises with the liquid level, it drives the sliding sleeve to slide upwards. The sliding sleeve drives the cover plate to open and connect with the water inlet of the siphon tube, and the storage component is in a drainage state. When the float falls with the liquid level, it drives the sliding sleeve to slide downwards and disengage from the siphon tube. The cover plate closes the water inlet of the siphon tube under elastic action, and the storage component is in a gas storage state.

[0010] Preferably, the float has a sliding hole corresponding to the sliding sleeve, and the sliding sleeve has an upper stop and a lower stop. The sliding sleeve passes through the sliding hole, and the float is disposed between the upper stop and the lower stop.

[0011] Preferably, the upper stop includes a permanent magnet and a first flange protruding from the top of the sliding sleeve, and a second flange protruding from the water inlet end of the siphon tube. The first flange is used to abut against the second flange. The permanent magnet is sleeved on the sliding sleeve and disposed between the float and the first flange. The inner ring of the water inlet end of the siphon tube is connected to a magnetic ring for adsorbing the permanent magnet.

[0012] Preferably, the lower stop includes a nut, and an external thread is formed on the outer side of the bottom end of the sliding sleeve, and the nut is threadedly connected to the outer side of the bottom end of the sliding sleeve.

[0013] Preferably, one side of the cover plate is hinged to the water inlet end of the siphon tube and is rotatably disposed around the hinge in a horizontal direction, and a torsion spring is provided at the hinge. A wedge is formed by protruding at the center of the bottom of the cover plate, and the direction of the line connecting the center point of the hinge of the cover plate to the center point of the water inlet end of the siphon tube is perpendicular to the length extension direction of the wedge.

[0014] Preferably, the thickness of the float is less than the distance between the upper stop and the lower stop.

[0015] Preferably, the storage assembly includes a housing and a top cover, the top cover being bolted to the top of the housing, the drain outlet being formed on the side wall of the housing, and the vent being formed on the top cover.

[0016] Preferably, the device further includes a guide rod, which is vertically disposed at the center of the housing and connected to the housing at its bottom end. The float has a slide rail, and the float passes through the guide rod through the slide rail to be slidably fitted onto the guide rod vertically.

[0017] Preferably, the outer wall of the float is fitted to the inner wall of the shell, and the float has multiple water flow channels spaced apart along its circumference.

[0018] Preferably, the number of drainage components is three, and the three drainage components are arranged at intervals along the circumference of the float.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention provides a mechanical automatic drainer, comprising a storage component, a float, and multiple drain components arranged circumferentially along the float. The storage component has a drain outlet and a vent for communicating with a compressed air storage tank. The float is vertically movably built into the storage component. Each drain component includes a branch pipe, a sliding sleeve, a siphon pipe, and a cover plate. The bottom end of the branch pipe is connected to the bottom end of the storage component and has a water inlet. The water outlet end of the siphon pipe extends out of the drain outlet and is set below the water inlet. The water inlet end of the siphon pipe is spaced at the top of the branch pipe. The cover plate is slidably connected to the water inlet end of the siphon pipe by an elastic element. The sliding sleeve is vertically slidably fitted onto the branch pipe. The float and the sliding sleeve are connected. As the float rises with the liquid level, it drives the sliding sleeve to slide upwards. The sliding sleeve drives the cover plate to open and connect with the water inlet of the siphon tube. The storage component is in a drainage state. When the liquid level is higher than the top of the siphon tube, the accumulated water is gradually discharged under the siphon principle, achieving a self-draining effect. As the float falls with the liquid level, it drives the sliding sleeve to slide downwards and disengage from the siphon tube. The cover plate, under the action of elasticity, closes the water inlet of the siphon tube. The storage component is in an air storage state to prevent compressed air leakage. The whole process is mechanical and does not rely on manual or electrical control. It is highly automated, more low-carbon and environmentally friendly, and at the same time ensures the timeliness of drainage to ensure the stability of system operation. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a cross-sectional schematic diagram of the overall structure in a drainage state according to one embodiment of the present invention;

[0023] Figure 2 This is a three-dimensional schematic diagram of the drainage component in a drainage state according to one embodiment of the present invention;

[0024] Figure 3 This is a cross-sectional schematic diagram of the drainage component in a drainage state according to one embodiment of the present invention;

[0025] Figure 4 This is a three-dimensional schematic diagram of the overall structure in one embodiment of the present utility model;

[0026] Figure 5 This is a three-dimensional schematic diagram of the overall structure of this utility model after the top cover is removed, showing the gas storage state.

[0027] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0028] Explanation of icon numbers:

[0029] 10. Storage component; 110. Housing; 111. Drain outlet; 120. Top cover; 121. Vent; 130. Guide rod; 20. Float; 210. Upper stop; 211. Permanent magnet; 212. First flange; 220. Lower stop; 221. Nut; 230. Water flow channel; 30. Drainage component; 310. Branch pipe; 311. Water inlet; 320. Sliding sleeve; 330. Siphon tube; 331. Second flange; 332. Magnetic ring; 340. Cover plate; 341. Inclined block. Detailed Implementation

[0030] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0034] Please see the appendix Figure 1-5 The present invention provides a mechanical automatic drainer in one embodiment, comprising a storage component 10, a float 20, and a plurality of draining components 30 arranged at circumferential intervals along the float 20, the specific scheme of which is as follows:

[0035] The storage component 10 has a drain outlet 111 and a vent 121 for communicating with a compressed air storage tank. The float 20 is vertically movably built into the storage component 10. Each drain component 30 includes a branch pipe 310, a sliding sleeve 320, a siphon pipe 330, and a cover plate 340. The bottom end of the branch pipe 310 is connected to the bottom end of the storage component 10 and has a water inlet 311. The water outlet end of the siphon pipe 330 extends out of the drain outlet 111 and is set below the water inlet 311. The water inlet ends of the siphon pipe 330 are spaced apart and directly above the top end of the branch pipe 310. The cover plate 340 is elastically connected to the water inlet end of the siphon pipe 330. The sliding sleeve 320 is vertically slidably fitted onto the branch pipe 310. The float 20 and the sliding sleeve 320 are connected.

[0036] Specifically, the mechanical automatic drainer in this application includes a storage component 10, a float 20, and a plurality of drain components 30 arranged circumferentially along the float 20. The storage component 10 is used to store compressed air and temporarily store condensate generated by the compressed air. The drain components 30 then automatically drain the accumulated water. The number of drain components 30 can be set to a plurality to improve drainage performance. In a preferred embodiment of this application, three drain components 30 are arranged circumferentially along the float 20. The float 20 is used to move under the buoyancy of the accumulated water to realize the switching of the drainage state of the drain components 30.

[0037] Each drainage component 30 includes a branch pipe 310, a sliding sleeve 320, a siphon pipe 330, and a cover plate 340. The water inlet 311 at the bottom of the branch pipe 310 serves as the drainage inlet, and the drainage outlet is the outlet of the siphon pipe 330. The inlet of the siphon pipe 330 is spaced apart and positioned directly above the top of the branch pipe 310, thus connecting the flow path through the sliding sleeve 320. In the initial normal state, the sliding sleeve 320 and the float 20 are located at the bottom of the entire storage component 10 under gravity. The inlet of the siphon pipe 330 is closed by the cover plate 340 to prevent compressed air leakage. As the compressed air gradually produces condensate, the accumulated water creates buoyancy on the float 20. Under this buoyancy, the float 20 drives the connected sliding sleeve 320 to slide upwards, connecting the siphon pipe 330 and the branch pipe 310, thereby forming a connected drainage path. (Details follow...)

[0038] When the float 20 rises with the liquid level, it drives the sliding sleeve 320 to slide upwards. The sliding sleeve 320 drives the cover plate 340 to open and connect with the water inlet end of the siphon tube 330, and the storage component 10 is in a drainage state. When the float 20 falls with the liquid level, it drives the sliding sleeve 320 to slide downwards and disengage from the siphon tube 330. The cover plate 340 closes the water inlet end of the siphon tube 330 under elastic action, and the storage component 10 is in a gas storage state.

[0039] It should be noted that when the sliding sleeve 320 approaches the water inlet end of the siphon tube 330, it will drive the cover plate 340 to open, so that the top of the sliding sleeve 320 can fit against the water inlet end of the siphon tube 330, and the internal pipeline will be connected simultaneously. The entire storage assembly 10 enters the drainage state. When the liquid level rises to the top of the siphon tube 330, the liquid fills the interior of the siphon tube 330, and the water outlet end of the siphon tube 330 is lower than the water inlet hole 311 to form a height difference. The water outlet end of the siphon tube 330 can be connected to a container for receiving the discharged water. Thus, under the action of the siphon effect, the pressure difference caused by the height difference at both ends The system pushes water through the inlet 311, which flows through the branch pipe 310, the sliding sleeve 320, and the siphon pipe 330 before flowing out from the outlet, achieving automatic drainage. When the water level drops to a certain extent, the float 20 gradually loses buoyancy and falls with the water level, thereby driving the connected sliding sleeve 320 to slide down. After the sliding sleeve 320 disengages from the siphon pipe 330, the cover plate 340 closes the inlet of the siphon pipe 330 under the action of elastic pre-tightening force, thus preventing compressed air leakage. The process repeats until water accumulates again. The entire process relies on mechanical automation without human intervention, and the drainage is timely.

[0040] In a preferred embodiment of the present invention, the float 20 has a sliding hole corresponding to the sliding sleeve 320, and the sliding sleeve 320 has an upper stop portion 210 and a lower stop portion 220. The sliding sleeve 320 passes through the sliding hole, and the float 20 is disposed between the upper stop portion 210 and the lower stop portion 220.

[0041] It should be noted that the sliding hole is used for the sliding sleeve 320 to pass through and connect with each other, while the upper stop 210 and the lower stop 220 facilitate the float 20 to push the sliding sleeve 320 to slide under mutual resistance when floating up and down. Therefore, the float 20 is set between the upper stop 210 and the lower stop 220. In this way, when floating up, the upper stop 210 is pushed to drive the sliding sleeve 320 to move up, and when sinking, the lower stop 220 is pushed to drive the sliding sleeve 320 to move down.

[0042] Preferably, the thickness of the float 20 is less than the gap between the upper stop 210 and the lower stop 220. In this way, when the float 20 sinks, it will not directly push the lower stop 220 to drive the sliding sleeve 320 down. It also has a buffer distance, which allows time for drainage to be reserved, thereby increasing the drainage volume.

[0043] In a preferred embodiment of the present invention, the upper stop portion 210 includes a permanent magnet block 211 and a first flange 212 protruding from the top of the sliding sleeve 320. The water inlet end of the siphon tube 330 is provided with a second flange 331. The first flange 212 is used to abut against the second flange 331. The permanent magnet block 211 is sleeved on the sliding sleeve 320 and disposed between the float 20 and the first flange 212. The inner ring of the water inlet end of the siphon tube 330 is connected to a magnetic ring 332 for adsorbing the permanent magnet block 211.

[0044] It should be noted that the first flange 212 is used to abut against the second flange 331 at the water inlet end of the siphon tube 330 so that the two are connected by force. The permanent magnet block 211 can be attracted to the magnetic ring 332 of the inner ring of the water inlet end of the siphon tube 330 so that when the sliding sleeve 320 approaches the siphon tube 330, it will close faster under the action of magnetism, thereby accelerating the formation of the drainage state.

[0045] In a preferred embodiment of the present invention, the lower stop 220 includes a nut 221, and an external thread is formed on the outer side of the bottom end of the sliding sleeve 320. The nut 221 is threadedly connected to the outer side of the bottom end of the sliding sleeve 320.

[0046] It is worth noting that the nut 221 is securely connected by a thread and the distance between it and the upper stop 210 can be adjusted appropriately to change the sinking distance of the float 20 and adjust the drainage time.

[0047] In a preferred embodiment of the present invention, one side of the cover plate 340 is hinged to the water inlet end of the siphon pipe 330 so as to be rotatably disposed around the hinge in the horizontal direction, and a torsion spring is provided at the hinge. A wedge block 341 is protruding from the center of the bottom of the cover plate 340, and the line connecting the center point of the hinge of the cover plate 340 to the center point of the water inlet end of the siphon pipe 330 is perpendicular to the length extension direction of the wedge block 341.

[0048] It is worth noting that a protrusion can be formed on one side of the inlet end of the siphon pipe 330, and a corresponding protrusion can be formed on one side of the cover plate 340. A vertically extending pin is provided at this protrusion to complete the hinge, so that the cover plate 340 can be rotatably set around the hinge in the horizontal direction. A torsion spring is provided at the hinge pin to connect the cover plate 340 and the inlet end of the siphon pipe 330, so that when no water is drained, it returns to the initial closed state under the elastic action of the torsion spring to close the inlet end of the siphon pipe 330. Furthermore, the inclined block 341 at the bottom of the cover plate 340 is used for the sliding sleeve 320 to abut against it. When the inclined plate is set in the direction of the inclined plate, the line connecting the center point of the hinge of the cover plate 340 to the center point of the water inlet of the siphon pipe 330 is perpendicular to the length extension direction of the inclined block 341. This means that after the sliding sleeve 320 squeezes the inclined block 341, the horizontal component of the force generated by the contact inclined surface, in addition to the vertical force, is tangent to the horizontal rotation path of the cover plate 340. Thus, under the action of this component force, the cover plate 340 can be squeezed to rotate around the hinge point, and the force is increased under the action of the permanent magnet block 211 and the magnetic ring 332 to ensure that the cover plate 340 can be completely squeezed open.

[0049] It is worth mentioning that the magnetic force between the permanent magnet block 211 and the magnetic ring 332 only acts to accelerate the connection and sealing between the sliding sleeve 320 and the siphon tube 330 when the sliding sleeve 320 is close to the siphon tube 330. After the connection is accelerated, it does not affect the lag of the float 20. Therefore, this magnetic force is not particularly large, and it is less than the weight of the float 20. When there is no water accumulation buoyancy, the weight of the float 20 is enough to drive the sliding sleeve 320 to press down to break away from the attraction of this small part of the magnetic force and form an air storage state.

[0050] Furthermore, the storage assembly 10 includes a housing 110 and a top cover 120, the top cover 120 being bolted to the top of the housing 110, the drain outlet 111 being formed on the side wall of the housing 110, and the vent 121 being formed on the top cover 120.

[0051] It should be understood that the housing 110 serves as the container body, the top cover 120 is used to seal the housing 110 to prevent compressed air leakage, the drain outlet 111 is formed on the side wall of the housing 110 to allow the siphon tube 330 to pass through, and the vent 121 is formed on the top cover 120 to facilitate communication with the compressed air storage tank.

[0052] Furthermore, it also includes a guide rod 130, which is vertically disposed at the center of the housing 110 and its bottom end is connected to the housing 110. The float 20 has a slide rail, and the float 20 passes through the guide rod 130 through the slide rail to be slidably sleeved on the guide rod 130 in a vertical direction.

[0053] It should be noted that the guide rod 130 can better guide the floating direction of the float 20 to ensure that the float 20 slides vertically. At the same time, the outer wall of the float 20 can be fitted with the inner wall of the housing 110 to further prevent the float 20 from flipping when floating. It can be understood that a small gap is reserved here so that there will not be a large frictional resistance when floating. At the same time, a water flow channel 230 is opened on the float 20 so that when water overflows, it is temporarily stored in the space above the float 20 and drained at the same time.

[0054] To facilitate understanding by those skilled in the art, its workflow is briefly described as follows:

[0055] When the compressed air inside the housing 110 condenses due to temperature changes, the condensate gradually accumulates. As the condensate level rises, it causes the float 20 to float upwards. The float 20 floats upwards and pushes the permanent magnet 211 to press against the first flange 212, causing the sliding sleeve 320 to slide upwards. When the sliding sleeve 320 approaches the water inlet end of the siphon tube 330, the permanent magnet 211, under the mutual attraction with the magnetic ring 332, quickly presses upwards against the inclined block 341 of the cover plate 340. Under the pressure, the inclined block 341 rotates horizontally until it disengages from the second flange 331 surface at the water inlet end of the siphon tube 330. The first flange 212 of the sliding sleeve 320 and... The second flange 331 of the siphon tube 330 is in close contact with the internal pipeline. As the liquid level rises further, the siphon effect causes the water to drain automatically. When the water level drops to a certain extent, the float 20 sinks under its own weight due to the gradually lost buoyancy. The float 20 presses down on the fastened nut 221 to drive the sliding sleeve 320 to slide down. The sliding sleeve 320 disengages from the contact with the siphon tube 330, and the cover plate 340 rotates under the action of the elastic element to close the water inlet of the siphon tube 330, thereby achieving a natural air storage state to avoid compressed air leakage.

[0056] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A mechanical automatic drainer, characterized in that, It includes a storage component, a float, and multiple drainage components arranged at circumferential intervals along the float; wherein, The storage component has a drain outlet and a vent for communicating with a compressed air storage tank, and the float is vertically movably built into the storage component; Each drainage assembly includes a branch pipe, a sliding sleeve, a siphon pipe, and a cover plate. The bottom end of the branch pipe is connected to the bottom end of the storage assembly and has a water inlet. The outlet end of the siphon pipe extends beyond the drain outlet and is positioned below the water inlet. The inlet ends of the siphon pipes are spaced apart and directly above the top of the branch pipe. The cover plate is elastically connected to the inlet end of the siphon pipe. The sliding sleeve is vertically slidably fitted onto the branch pipe, and the float is connected to the sliding sleeve. When the float rises with the liquid level, it drives the sliding sleeve to slide upwards. The sliding sleeve drives the cover plate to open and connect with the water inlet of the siphon tube, and the storage component is in a drainage state. When the float falls with the liquid level, it drives the sliding sleeve to slide downwards and disengage from the siphon tube. The cover plate closes the water inlet of the siphon tube under elastic action, and the storage component is in a gas storage state.

2. The mechanical automatic drainer according to claim 1, characterized in that, The float has a sliding hole corresponding to the sliding sleeve, and the sliding sleeve has an upper stop and a lower stop. The sliding sleeve passes through the sliding hole, and the float is disposed between the upper stop and the lower stop.

3. The mechanical automatic drainer according to claim 2, characterized in that, The upper stop includes a permanent magnet and a first flange protruding from the top of the sliding sleeve. The water inlet end of the siphon tube has a second flange protruding from it. The first flange is used to abut against the second flange. The permanent magnet is sleeved on the sliding sleeve and disposed between the float and the first flange. The inner ring of the water inlet end of the siphon tube is connected to a magnetic ring for adsorbing the permanent magnet.

4. The mechanical automatic drainer according to claim 2, characterized in that, The lower stop includes a nut, and an external thread is formed on the outer side of the bottom end of the sliding sleeve. The nut is threadedly connected to the outer side of the bottom end of the sliding sleeve.

5. The mechanical automatic drainer according to claim 3, characterized in that, One side of the cover plate is hinged to the water inlet end of the siphon tube and is rotatably disposed around the hinge in a horizontal direction. A torsion spring is provided at the hinge. A wedge is protruding from the center of the bottom of the cover plate. The line connecting the center point of the hinge of the cover plate to the center point of the water inlet end of the siphon tube is perpendicular to the length extension direction of the wedge.

6. The mechanical automatic drainer according to claim 2, characterized in that, The thickness of the float is less than the distance between the upper stop and the lower stop.

7. The mechanical automatic drainer according to claim 1, characterized in that, The storage assembly includes a housing and a top cover, the top cover being bolted to the top of the housing, a drain outlet being formed on the side wall of the housing, and a vent being formed on the top cover.

8. The mechanical automatic drainer according to claim 7, characterized in that, It also includes a guide rod, which is vertically disposed at the center of the housing and its bottom end is connected to the housing. The float has a slide rail, and the float passes through the guide rod through the slide rail to be slidably fitted onto the guide rod vertically.

9. The mechanical automatic drainer according to claim 8, characterized in that, The outer wall of the float is fitted to the inner wall of the shell, and the float has multiple water flow channels spaced apart along its circumference.

10. The mechanical automatic drainer according to claim 1, characterized in that, The number of drainage components is three, and the three drainage components are arranged at intervals along the circumference of the float.

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