Automatic exhaust device for water pump

Abstract

The automatic exhaust device comprises a valve body, the valve body comprises a valve shell and a valve cover, a water inlet and a sealing opening are formed in the two ends of the valve shell respectively, and the valve cover is matched with the sealing opening; the valve cover comprises an exhaust hole; between the water inlet and the sealing opening, the valve shell comprises a through valve cavity, and the valve cavity is used for containing an opening and closing adjusting mechanism; the opening and closing adjusting mechanism comprises a floating block and a rod body piece, wherein the two ends of the rod body piece are rotationally connected with the exhaust hole and the floating block correspondingly. The first end, connected to the exhaust hole, of the rod body piece comprises a plug, and the plug is matched with the exhaust hole. Through the floating function of the floating block, automatic opening and closing of the exhaust hole are achieved, and the automation degree of exhaust of the water pump is improved.

Description

Technical Field

[0001] The present application relates to the technical field of water pumps, and in particular to an automatic exhaust device for a water pump. Background Art

[0002] A water pump is a machine for liquid transportation or liquid pressurization. It transfers the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali liquids, emulsions, suspensions and liquid metals. During the water absorption process, the water pump needs to throw out the water in the water pump through the rotation of the impeller to form a vacuum inside the cavity of the water pump, so that water is pressed into the water pump under the action of negative pressure. Among them, the exhaust valve is a component of the water pump for gas discharge. The opening and closing of the conventional exhaust valve needs to be manually opened before each start of the water pump and closed at the end, which is very troublesome. Moreover, with the long-term opening and closing of the exhaust valve, its sealing performance deteriorates, which is easy to cause water seepage and leakage. If it does not happen in time, it will cause the pump room to flood, resulting in equipment damage and property loss. Utility Model Content

[0003] In order to solve the problem that the exhaust valve in the prior art needs to be opened and closed manually and is prone to water leakage and seepage after long-term use, the present application provides an automatic exhaust device for a water pump, which has at least the advantages of good automatic performance and high reliability.

[0004] The present application provides an automatic exhaust device for a water pump, comprising: a valve body, the valve body comprising a valve shell with a water inlet and a sealing port respectively provided at two ends, and a valve cover adapted to the sealing port; the valve cover comprises an exhaust hole; between the water inlet and the sealing port, the valve shell comprises a through valve cavity, the valve cavity is used to accommodate an opening and closing adjustment mechanism; the opening and closing adjustment mechanism comprises a float, and a rod body member with two ends respectively rotatably connected to the exhaust hole and the float; the first end of the rod body member connected to the exhaust hole comprises a plug, and the plug is adapted to the exhaust hole.

[0005] Specifically, one of the concepts of the present application is to realize the automatic opening and closing of the vent hole through the floating function of the float. When the valve cavity is in a waterless state and the water level rises, since the float has not risen to the highest water level, and both ends of the rod body are rotatably connected, at this time, the rod body is not lifted to the valve cover by the float, and the plug of the opening and closing adjustment assembly is in a separated state from the vent hole. At this time, the valve cavity can be vented normally; when the water level of the valve cavity rises to the highest water level, the rod body is lifted to the valve cover, and the plug connected to it is squeezed upward to block the vent hole. At this time, the valve cavity is sealed and water cannot seep out of the vent hole. Therefore, the present application realizes the automatic opening and closing of the vent hole through the above technical scheme, and improves the degree of automation of the water pump exhaust.

[0006] Furthermore, the rod body is connected to the second end of the floating block and includes an interface; adapted thereto, the floating block includes a fixedly arranged mounting block; the interface is movably connected to the mounting block so that the interface has a rotational freedom with the mounting block as the center.

[0007] Furthermore, the mounting block includes a fixed portion and a curled portion connected as an integral whole; the fixed portion is vertically mounted on the floating block, the curled portion is formed by turning and folding, and an access port is provided at its open end; the interface is an opening on the plate surface of the second end portion, which enters through the access port and is limited to the curled portion.

[0008] Specifically, the present application utilizes a mounting block composed of a curling portion and a fixing portion to allow greater rotational autonomy of the interface and the mounting block, thereby avoiding the problems of jamming and lag caused by the use of traditional pins, making it more reliable.

[0009] In some embodiments, the first end portion includes a mounting member having an inner cavity and an open port, the mounting member is fixedly connected to the first end portion and connected to the valve cavity via a pin shaft, the mounting member has a degree of freedom of rotation with the pin shaft as the center; the plug is partially accommodated in the inner cavity from the open port.

[0010] Furthermore, the plug includes a sealing portion and an embedded portion that are integrally connected, and a spring; the embedded portion passes through the spring and is accommodated in the inner cavity together with the spring; wherein, in the extended state, the spring protrudes from the open mouth, and part of the spring is used to accommodate the embedded portion; the outer wall of the sealing portion is adapted to the inner cavity for limiting the spring.

[0011] Specifically, another concept of the present application is to use the elastic potential energy of the spring to assist the blocking portion and the vent to come out. It is worth noting that when the vent changes from an open state to a closed state, there is no problem in the process, but when the closed state changes to an open state, since the blocking portion and the vent are interlocked, the two have a strong bonding strength and are easily stuck. At this time, the elastic potential energy of the spring is released, which just assists the blocking portion to come out.

[0012] Furthermore, the blocking portion includes a first protrusion toward the exhaust hole, and the first protrusion is appropriately accommodated in the exhaust hole.

[0013] Specifically, the first protrusion and the exhaust hole can be embedded in each other, and when the floating block rises to the highest height, the first protrusion is embedded in the exhaust hole.

[0014] Optionally, the exhaust hole includes a second protrusion in the direction toward the blocking portion; adapted thereto, the blocking portion includes a groove.

[0015] Specifically, compared with the method of embedding the exhaust hole through the first protrusion, it is more reliable to embed the exhaust hole directly into the groove. It is worth noting that the exhaust hole is integrated into the valve cover and is made of hard metal, and the blocking part is elastic rubber to block the exhaust hole. The cooperation between the second protrusion and the groove makes it easier to fall out under the action of the spring.

[0016] In some embodiments, the floating block includes a sunken flush portion at the position of the mounting member; when the mounting member is placed flat on the flush portion, the rod member is parallel to the valve cover.

[0017] Specifically, the upward driving force of the plug does not come from the rotation of the mounting member. The rotational freedom at both ends of the rod member is only used to provide it with freedom. When the floating block has not risen to the highest water level, as the water level continues to rise, the inclination angle between the rod member and the floating block gradually decreases until the two are parallel, that is, the mounting member is placed flat on the flush portion; when the water level rises further, the floating block pushes the mounting member upward, so that the plug arranged in the inner cavity blocks the exhaust hole.

[0018] In some embodiments, the pin shaft includes a rotating shaft disposed on both sides of the mounting member, and a fixing seat disposed on the valve cover; the rotating shaft is movably connected to the fixing seat.

[0019] In some embodiments, the outer wall of the float is adapted to the inner wall of the valve cavity, and a through channel is provided around the float.

[0020] Specifically, the floating block is adapted to the valve cavity, so that the floating block can float more stably and will not swing left and right.

[0021] In summary, the present application provides an automatic exhaust device for a water pump, which has at least the following advantages:

[0022] 1. One of the concepts of the present application is to realize the automatic opening and closing of the exhaust hole through the floating function of the floating block, thereby improving the automation degree of the exhaust of the water pump;

[0023] 2. The mounting block composed of the curling part and the fixing part is used to make the rotational automaticity of the interface and the mounting block greater, thus avoiding the jamming and stagnation problems caused by the use of traditional pins, making it more reliable;

[0024] 3. The elastic potential energy of the spring is used to assist the blocking portion and the exhaust hole to be disengaged, and the matching mode between the first protrusion and the exhaust hole or the second protrusion and the groove is adapted;

[0025] 4. The floating block is adapted to the valve cavity, so that the floating block floats more stably, thereby making the plugging of the plug more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present application will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present application. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0027] Figure 1 A cross-sectional view of an automatic exhaust device for a water pump provided in an embodiment of the present application;

[0028] Figure 2 A schematic diagram of a disassembly of an automatic exhaust device for a water pump provided in an embodiment of the present application;

[0029] Figure 3 A schematic diagram of the movement of a rotating body provided in an embodiment of the present application;

[0030] Figure 4 A schematic diagram of the coordination between the exhaust hole and the plug provided in the embodiment of the present application;

[0031] 1. Valve body; 2. Valve cover; 3. Opening and closing adjustment mechanism; 11. Water inlet; 12. Sealing port; 13. Valve cavity; 21. Exhaust hole; 22. Pin shaft; 31. Float; 32. Rod body; 211. Second protrusion; 221. Fixed seat; 311. Mounting block; 312. Flush portion; 313. Through passage; 321. First end portion; 322. Second end portion; 3111. Fixed portion; 3112. Curled portion; 3113. Access port; 3211. Plug; 3212. Mounting member; 3221. Interface; 32111. Sealing portion; 32112. Embedded portion; 32113. Spring; 32121. Inner cavity; 32122. Opening port; 32123. Rotating shaft; 321111. First protrusion; 321112. Groove. DETAILED DESCRIPTION

[0032] The present application will be described in detail below with reference to the accompanying drawings.

[0033] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] It is worth noting that the ordinal numbers such as "first" and "second" used in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, priority or importance of multiple objects. For example, the first port and the second port are only for the convenience of description, and do not indicate the difference in the order, importance, etc. of the first port and the second port. In addition, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, a conflicting connection or an integral connection; wherein, "connection" can also be a direct connection or an indirect connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. For example, the rod body 32 whose two ends are rotatably connected to the exhaust hole 21 and the floating block 31 respectively, where the rotational connection refers to that after the two ends of the rod body 32 are respectively connected to the exhaust hole 21 and the floating block 31, both ends have rotational freedom.

[0035] See also Figure 1 Shown is a cross-sectional view of an automatic exhaust device for a water pump provided in an embodiment of the present application.

[0036] Specifically, the water pump is connected to the water inlet 11, and is connected to the exhaust hole 21 of the valve cover 2 through the valve cavity 13 of the valve body 1 in turn, so as to exhaust the water pump. When the water pump is started, the air needs to be exhausted, but after normal operation, it needs to remain sealed. The working principle of the automatic exhaust of the present application is that after the water pump is started, as the liquid level continues to rise, the air is continuously discharged from the exhaust hole 21. As the water level continues to rise, the float 31 of the opening and closing adjustment mechanism 3 also rises synchronously. When the float 31 rises to approach the valve cover 2, the first end 321 and the second end 322 of the rod body 32 both have rotational freedom. At this time, the rod body 32 is placed flat on the float 31. As the float 31 rises further, the rod body 32 pushes the plug 3211 upward to achieve the blocking of the exhaust hole 21. On the contrary, when the water pump stops, the water level continues to drop, and synchronously, the float 31 continues to drop, and the second end 322 of the rod body 32 pulls the first end 321 thereof, so that the plug 3211 is disengaged from the exhaust hole 21, and the water pump is exhausted normally.

[0037] Furthermore, the interface 3221 of the second end portion 322 is an opening on the plate surface of the rod body member 32, which is fixedly connected to the mounting block 311 of the floating block 31, and includes the vertical fixing portion 3111 and the bent and folded curled portion, so that the second end portion 322 passes through the interface 3221, from the access port 3113, and is inserted into the curled portion 3112, so that the rod body member 32 can rotate around the second end portion 322.

[0038] In some embodiments, the pin shaft 22 of the first end portion 321 includes a rotating shaft 32123 disposed on both sides of the mounting member 3212 and a fixing seat 221 disposed on the valve cover 2, and the rotating shaft 32123 is movably connected to the fixing seat 221, so that the mounting member 3212 can rotate around the rotating shaft 32123 under the positioning of the fixing seat 221. It is worth noting that the fixing seat 221 cooperates with the mounting member 3212 to limit the plug 3211 in its open port 32122.

[0039] Furthermore, the mounting member 3212 includes an inner cavity 32121 and an open port 32122 . The open port 32122 is used for the plug 3211 to be prevented and is partially accommodated in the inner cavity 32121 .

[0040] Furthermore, the plug 3211 includes a blocking portion 32111, an embedding portion 32112 and a spring 32113, wherein the embedding portion 32112 is inserted into the spring 32113 and placed together in the inner cavity 32121. When the float 31 continuously rises to the valve cover 2, the blocking portion 32111 first abuts against the exhaust hole 21, and then the spring 32113 is continuously compressed until the first protrusion 321111 or the groove 321112 of the blocking portion 32111 is engaged with the exhaust hole 21 or the second protrusion 211, thereby sealing the exhaust hole 21.

[0041] Furthermore, the upward driving force of the plug 3211 does not come from the rotation of the mounting member 3212. The rotational freedom at both ends of the rod member 32 is only used to provide it with freedom. When the float 31 has not risen to the highest water level, as the water level continues to rise, the inclination angle between the rod member 32 and the float 31 gradually decreases until the two are parallel, that is, the mounting member 3212 is placed flat on the flush portion 312; when the water level rises further, the float 31 pushes the mounting member 3212 upward, so that the plug 3211 disposed in the inner cavity 32121 blocks the exhaust hole 21.

[0042] In some embodiments, the outer wall of the float 31 is adapted to the inner wall of the valve cavity 13 , and a through channel 313 is provided around the float 31 .

[0043] See also Figure 2 Shown is a schematic diagram of the disassembly of an automatic exhaust device for a water pump provided in an embodiment of the present application.

[0044] Specifically, the valve body 1 is connected to the water pump through its water inlet 11 to provide base support, and then the float 31 and the rod body 32 are installed in the valve cavity 13 in sequence, and the float 31 and the valve cover 2 are respectively connected through the first end 321 and the second end 322 of the rod body 32, and then the valve cover 2 is sealed and connected to the sealing port 12.

[0045] See also Figure 3 Shown is a schematic diagram of the movement of the rotating body provided in an embodiment of the present application.

[0046] Specifically, the first end 321 of the rod body 32 is limited to the curling portion 3112 through the interface 3221. Initially, the float 31 is located at the lowest position of the valve chamber 13, and the rod body 32 is respectively connected to the float 31 and the valve cover 2, and the plug 3211 is limited to the exhaust hole 21 through the first end 321. As the water level rises, the float 31 continues to rise, and the rod body 32 is gradually laid flat on the float 31, and the plane of the mounting member 3212 is kept horizontal through the flush portion 312 of the float 31. When the water level rises further, the float 31 squeezes the plug 3211, so that the plug 3211 blocks the exhaust hole 21.

[0047] See also Figure 4 Shown is a schematic diagram of the coordination between the exhaust hole 21 and the plug 3211 provided in an embodiment of the present application.

[0048] Specifically, Figure 4 The blocking portion 32111 in (a) includes a first protrusion 321111 , and the first protrusion 321111 is at least partially embedded in the exhaust hole 21 to achieve sealing of the exhaust hole 21 . Figure 4 In (b), the blocking portion 32111 includes a groove 321112 , and the exhaust hole 21 includes a second protrusion 211 protruding from the valve cover 2 , so that the second protrusion 211 is embedded in the groove 321112 to achieve sealing of the exhaust hole 21 .

[0049] The present application is described in detail above. Specific examples are used in the present application to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. An automatic exhaust device for a water pump, characterized in that: include: A valve body (1), the valve body (1) comprising a valve shell having a water inlet (11) and a sealing port (12) respectively provided at two ends, and a valve cover (2) adapted to the sealing port (12); the valve cover (2) comprising an exhaust hole (21); The valve housing comprises a through valve cavity (13) between the water inlet (11) and the sealing port (12), wherein the valve cavity (13) is used to accommodate an opening and closing adjustment mechanism (3); The opening and closing adjustment mechanism (3) comprises a floating block (31) and a rod body (32) whose two ends are rotatably connected to the exhaust hole (21) and the floating block (31) respectively; the first end (321) of the rod body (32) connected to the exhaust hole (21) comprises a plug (3211), and the plug (3211) is adapted to fit the exhaust hole (21).

2. An automatic exhaust device for a water pump as claimed in claim 1, characterized in that: The rod body (32) is connected to the second end (322) of the floating block (31) and comprises an interface (3221); adapted thereto, the floating block (31) comprises a fixedly arranged mounting block (311); The interface (3221) is movably connected to the mounting block (311), so that the interface (3221) has a degree of freedom of rotation with the mounting block (311) as the center.

3. An automatic exhaust device for a water pump as claimed in claim 2, characterized in that: The mounting block (311) comprises a fixing portion (3111) and a curling portion (3112) connected as one body; The fixing portion (3111) is vertically mounted on the floating block (31); the curling portion (3112) is formed by bending and folding, and an access port (3113) is provided at its open end; The interface (3221) is a plate opening of the second end (322), which enters through the access port (3113) and is confined to the curled portion.

4. An automatic exhaust device for a water pump as claimed in claim 1, characterized in that: The first end portion (321) comprises a mounting member (3212) having an inner cavity (32121) and an open port (32122); the mounting member (3212) is fixedly connected to the first end portion (321) and connected to the valve cavity (13) via a pin shaft (22); the mounting member (3212) has a degree of freedom of rotation with the pin shaft (22) as a circle center; The plug (3211) is partially accommodated in the inner cavity (32121) from the open mouth (32122).

5. An automatic exhaust device for a water pump as claimed in claim 4, characterized in that: The plug (3211) comprises a sealing portion (32111) and an embedding portion which are integrally connected, and a spring (32113); The embedded portion is inserted into the spring (32113) and is accommodated in the inner cavity (32121) together with the spring (32113); wherein, in the extended state, the spring (32113) protrudes from the open mouth (32122), and a portion of the spring (32113) is used to accommodate the embedded portion; The outer wall of the blocking portion (32111) is adapted to the inner cavity (32121) and is used to limit the spring (32113).

6. An automatic exhaust device for a water pump as claimed in claim 5, characterized in that: The blocking portion (32111) includes a first protrusion (321111) in the direction toward the exhaust hole (21), and the first protrusion (321111) is appropriately accommodated in the exhaust hole (21).

7. An automatic exhaust device for a water pump as claimed in claim 5, characterized in that: The exhaust hole (21) includes a second protrusion (211) in the direction toward the blocking portion (32111); adapted thereto, the blocking portion (32111) includes a groove (321112).

8. An automatic exhaust device for a water pump as claimed in claim 4, characterized in that: The floating block (31) comprises a sunken flush portion (312) at the position of the mounting member (3212); When the mounting member (3212) is placed flat on the flush portion (312), the rod member (32) is parallel to the valve cover (2).

9. An automatic exhaust device for a water pump as claimed in claim 4, characterized in that: The pin shaft (22) comprises a rotating shaft (32123) arranged on both sides of the mounting member (3212), and a fixing seat (221) arranged on the valve cover (2); the rotating shaft (32123) is movably connected to the fixing seat (221).

10. An automatic exhaust device for a water pump as claimed in claim 1, characterized in that: The outer wall of the floating block (31) is adapted to the inner wall of the valve chamber (13), and a through channel (313) is provided around the floating block (31).

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