阅读说明：本技术 带有密封机构的自吸泵 (Self-priming pump with sealing mechanism ) 是由 熊治 潘盼 胡友志 于 2021-08-23 设计创作，主要内容包括：本发明涉及自吸泵技术领域,尤其涉及带有密封机构的自吸泵,所述偏心轮的一端连接有电机,所述偏心轮的另一端连接有传动轮,所述传动轮活动贯穿支撑座并插入阀座的内部,所述阀座套接有泵壳,所述第一螺钉连接泵壳、支撑座和电机,所述第二螺钉连接泵壳和支撑座；所述传动轮上开设有第一环形槽和螺纹孔。橡胶膜片上的密封圈嵌入第一环形槽的内部,第一环形槽和密封圈之间设置有密封胶的设置,防止水由第一活塞和橡胶膜片之间溢出,第一密封槽和第二密封槽组成密封腔,密封腔中注入密封润滑脂的设置,保证密封腔的密封性能,防止水由橡胶膜片和泵壳之间溢出,避免因橡胶膜片使用的过程中发生损耗,影响到泵的效率和自吸性能。(The invention relates to the technical field of self-priming pumps, in particular to a self-priming pump with a sealing mechanism, wherein one end of an eccentric wheel is connected with a motor, the other end of the eccentric wheel is connected with a driving wheel, the driving wheel movably penetrates through a supporting seat and is inserted into a valve seat, the valve seat is sleeved with a pump shell, a first screw is connected with the pump shell, the supporting seat and the motor, and a second screw is connected with the pump shell and the supporting seat; a first annular groove and a threaded hole are formed in the driving wheel. The inside of the first ring channel of sealing washer embedding on the rubber diaphragm, be provided with sealed setting of gluing between first ring channel and the sealing washer, prevent that water from spilling over between by first piston and the rubber diaphragm, sealed chamber is constituteed to first seal groove and second seal groove, the setting of injecting sealed lubricating grease in the sealed chamber, guarantee the sealing performance in sealed chamber, prevent that water from spilling over between by rubber diaphragm and the pump case, avoid taking place the loss because of the in-process that the rubber diaphragm used, influence the efficiency of pump and from inhaling the performance.)

1. The self-priming pump with the sealing mechanism comprises an eccentric wheel (1), a first screw (801) and a second screw (802), wherein one end of the eccentric wheel (1) is connected with a motor (2), the other end of the eccentric wheel (1) is connected with a driving wheel (3), the driving wheel (3) movably penetrates through a supporting seat (4) and is inserted into a valve seat (7), the valve seat (7) is sleeved with a pump shell (8), the first screw (801) is connected with the pump shell (8), the supporting seat (4) and the motor (2), and the second screw (802) is connected with the pump shell (8) and the supporting seat (4);

the method is characterized in that: a first annular groove (301) and a threaded hole (302) are formed in the driving wheel (3), a second annular groove (803) is formed in the pump shell (8), and a second sealing groove (804) is formed in the second annular groove (803);

the rubber diaphragm (5) is sleeved on the valve seat (7), a sealing ring (501) is connected to the rubber diaphragm (5), the sealing ring (501) is embedded into the first annular groove (301), a sealing glue is arranged between the first annular groove (301) and the sealing ring (501), a first sealing groove (502) is formed in the rubber diaphragm (5), a sealing cavity is formed by the first sealing groove (502) and a second sealing groove (804), the highest point of the sealing cavity is set to be a point A, sealing lubricating grease is arranged in the sealing cavity, a glue injection port and an exhaust port are formed in the second sealing groove (804), a glue injection port sealing element (9) is arranged on the glue injection port, and an exhaust port sealing element (10) is arranged on the exhaust port;

a first piston (6) is arranged between the rubber diaphragm (5) and the valve seat (7), a bolt (601) is movably inserted into a through hole formed in the first piston (6), and the bolt (601) penetrates through the rubber diaphragm (5) and is connected with the threaded hole (302).

2. The self-primer pump with a sealing mechanism of claim 1 wherein: the rubber diaphragm (5) is connected with a sealing strip (503), a sealing groove (701) is formed in the valve seat (7), and the sealing strip (503) is embedded into the sealing groove (701);

the rubber diaphragm (5) is connected with a limiting bulge, a limiting hole is formed in the first piston (6), and the limiting bulge is inserted into the limiting hole.

3. The self-primer pump with a sealing mechanism of claim 1 wherein: the sealing element (9) of the glue injection port comprises a glue injection port tube body (901) which is in through connection with the glue injection port, a fin plate (902) is connected to the outer wall of the glue injection port tube body (901), a sleeve (903) is movably sleeved on the glue injection port tube body (901), the sleeve (903) is connected with a flanging (904), a screw rod (905) is movably inserted into through holes formed in the fin plate (902) and the flanging (904), and the screw rod (905) is in threaded connection with a first screw cap (906);

the glue injection port pipe body (901) is internally inserted with a second piston (907) in a sliding mode, the second piston (907) is connected with a long rod (908), a support plate (909) is connected into a sleeve (903), the support plate (909) is connected with a bearing rod (911) through a spring (910), the lower end face of the bearing rod (911) abuts against the upper end of the long rod (908), two ends of the bearing rod (911) movably penetrate through a strip-shaped groove (912) formed in the side wall of the sleeve (903), a threaded section formed in the outer wall of the sleeve (903) is connected with a second nut (913) in a threaded mode, and the lower end of the second nut (913) abuts against the upper end face of the bearing rod (911).

4. The self-primer pump with a sealing mechanism of claim 3 wherein: the lower end face of the bearing rod (911) is provided with a limiting groove, and the long rod (908) is inserted into the limiting groove.

5. The self-primer pump with a sealing mechanism of claim 3 wherein: a positioning ring (914) is connected in the glue injection port pipe body (901), the positioning ring (914) is located below the second piston (907), and the height of the positioning ring (914) is higher than the point A.

6. The self-primer pump with a sealing mechanism of claim 1 wherein: the exhaust port sealing element (10) comprises an exhaust port pipe body (1001) which is communicated with an exhaust port, a thread section which is arranged on the inner wall of the exhaust port pipe body (1001) is in threaded connection with a big head screw (1002), and a rubber gasket (1003) is movably sleeved on the big head screw (1002).

7. The self-primer pump with a sealing mechanism of claim 6 wherein: a positioning grid plate (1004) is connected in the exhaust port pipe body (1001), and the height of the positioning grid plate (1004) is higher than the point A.

Technical Field

The invention relates to the technical field of self-sucking pumps, in particular to a self-sucking pump with a sealing mechanism.

Background

The self-priming pump belongs to a self-priming centrifugal pump and has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long service life, stronger self-priming capability and the like.

Be provided with the sealing mechanism who is used for preventing liquid leakage in the self priming pump, wherein the rubber diaphragm plays the primary role in sealing mechanism, but the rubber diaphragm can produce the loss at the in-process of long-term use, influences sealed effect, influences the efficiency and the self-priming performance of pump.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a self-sucking pump with a sealing mechanism.

The invention solves the technical problems through the following technical means:

the self-priming pump with the sealing mechanism comprises an eccentric wheel, a first screw and a second screw, wherein one end of the eccentric wheel is connected with a motor, the other end of the eccentric wheel is connected with a driving wheel, the driving wheel movably penetrates through a supporting seat and is inserted into a valve seat, the valve seat is sleeved with a pump shell, the first screw is connected with the pump shell, the supporting seat and the motor, and the second screw is connected with the pump shell and the supporting seat;

a first annular groove and a threaded hole are formed in the driving wheel, a second annular groove is formed in the pump shell, and a second sealing groove is formed in the second annular groove;

the sealing structure comprises a valve seat, a sealing ring, a sealing grease, a first sealing groove, a second sealing groove, a sealing cavity, a sealing grease, an air outlet, an air inlet sealing piece and an air outlet sealing piece, wherein the valve seat is sleeved with a rubber diaphragm, the sealing ring is connected to the rubber diaphragm and embedded into the first annular groove, the sealing grease is arranged between the first annular groove and the sealing ring, the first sealing groove is formed in the rubber diaphragm, the first sealing groove and the second sealing groove form the sealing cavity, the highest point of the sealing cavity is set to be a point A, the sealing cavity is internally provided with the sealing grease, the second sealing groove is provided with the rubber inlet and the air outlet, the rubber inlet sealing piece is arranged on the rubber inlet, and the air outlet sealing piece is arranged on the air outlet;

a first piston is arranged between the rubber diaphragm and the valve seat, a bolt is movably inserted in a through hole formed in the first piston, and the bolt penetrates through the rubber diaphragm and is connected with a threaded hole.

As an improvement of the technical scheme, the rubber diaphragm is connected with a sealing strip, a sealing groove is formed in the valve seat, and the sealing strip is embedded into the sealing groove;

the rubber diaphragm is connected with a limiting bulge, a limiting hole is formed in the first piston, and the limiting bulge is inserted into the limiting hole.

As an improvement of the above technical scheme, the glue injection port sealing element comprises a glue injection port tube body communicated with the glue injection port, the outer wall of the glue injection port tube body is connected with a fin plate, the glue injection port tube body is movably sleeved with a sleeve, the sleeve is connected with a flange, a screw rod is movably inserted in through holes formed in the fin plate and the flange, and the screw rod is in threaded connection with a first nut;

the glue injection port pipe body is internally inserted with a second piston in a sliding mode, the second piston is connected with a long rod, a support plate is connected into the sleeve, the support plate is connected with an adapter rod through a spring, the lower end face of the adapter rod is abutted to the upper end of the long rod, two ends of the adapter rod movably penetrate through a strip-shaped groove formed in the side wall of the sleeve, a second nut is connected to a threaded section formed in the outer wall of the sleeve in a threaded mode, and the lower end of the second nut is abutted to the upper end face of the adapter rod.

As an improvement of the technical scheme, the lower end face of the bearing rod is provided with a limiting groove, and the long rod is inserted into the limiting groove.

As an improvement of the technical scheme, a positioning ring is connected in the glue injection port pipe body and located below the second piston, and the height of the positioning ring is higher than the point A.

As an improvement of the technical scheme, the exhaust port sealing element comprises an exhaust port pipe body communicated with the exhaust port, a thread section formed on the inner wall of the exhaust port pipe body is in threaded connection with a large head screw, and a rubber gasket is movably sleeved on the large head screw.

As the improvement of the technical scheme, a positioning grid plate is connected in the exhaust port pipe body, and the height of the positioning grid plate is higher than the point A.

The invention has the beneficial effects that:

in the sealing mechanism, the sealing ring on the rubber diaphragm is embedded into the first annular groove, the sealant is arranged between the first annular groove and the sealing ring to prevent water from overflowing between the first piston and the rubber diaphragm, the first sealing groove and the second sealing groove form a sealing cavity, and sealing grease is injected into the sealing cavity to ensure the sealing performance of the sealing cavity, prevent the water from overflowing between the rubber diaphragm and a pump shell and avoid the influence on the efficiency and the self-absorption performance of the pump due to the loss of the rubber diaphragm in the use process;

the arrangement of the sealing piece of the glue injection port plugs the glue injection port to ensure the sealing performance of the sealing cavity; the glue injection opening pipe body is also a sealed lubricating grease storage cavity, when sealed lubricating grease is damaged in the use of equipment, the sealed lubricating grease in the glue injection opening pipe body is injected into the sealed cavity, the sealed cavity is kept full of the sealed lubricating grease, and the sealing performance is guaranteed;

the gas vent sealing member carries out the shutoff to the gas vent, guarantees the sealing performance in sealed chamber, is provided with the location net board in the gas vent body, and the setting that highly is higher than A point of location net board, conveniently observes the degree of pouring into of sealed lubricating grease in sealed chamber, ensures that sealed lubricating grease fills up sealed chamber.

Drawings

FIG. 1 is an exploded view of a self-primer pump with a sealing mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic partial exploded view of a self-primer pump with a sealing mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic view of the rubber diaphragm and pump housing of a self-primer pump with a sealing mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a sealing member of a glue injection port of a self-priming pump with a sealing mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic view of a vent seal for a self-primer pump having a sealing mechanism in accordance with an embodiment of the present invention;

reference numerals: an eccentric wheel 1; a motor 2; a driving wheel 3; a first annular groove 301; a threaded hole 302; a support base 4; a rubber diaphragm 5; a seal ring 501; a first seal groove 502; a sealing strip 503; a first piston 6; a bolt 601; a valve seat 7; a seal groove 701; a pump housing 8; a first screw 801; a second screw 802; a second annular groove 803; a second seal groove 804; a glue injection port sealing member 9; a glue injection port tube body 901; a fin 902; a sleeve 903; a flange 904; a screw 905; a first nut 906; a second piston 907; a long rod 908; a support plate 909; a spring 910; a catcher pin 911; a strip groove 912; a second nut 913; a retaining ring 914; a vent seal 10; an exhaust port pipe 1001; a big head screw 1002; a rubber gasket 1003; a grid plate 1004 is positioned.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Examples

As shown in fig. 1, 2 and 3, the self-priming pump with a sealing mechanism comprises an eccentric wheel 1, a first screw 801 and a second screw 802, wherein one end of the eccentric wheel 1 is connected with a motor 2, the other end of the eccentric wheel 1 is connected with a driving wheel 3, the driving wheel 3 movably penetrates through a supporting seat 4 and is inserted into a valve seat 7, the valve seat 7 is sleeved with a pump shell 8, the first screw 801 is connected with the pump shell 8, the supporting seat 4 and the motor 2, and the second screw 802 is connected with the pump shell 8 and the supporting seat 4;

a first annular groove 301 and a threaded hole 302 are formed in the driving wheel 3, a second annular groove 803 is formed in the pump shell 8, and a second sealing groove 804 is formed in the second annular groove 803;

the valve seat 7 is sleeved with a rubber diaphragm 5, a sealing ring 501 is connected to the rubber diaphragm 5, the sealing ring 501 is embedded into the first annular groove 301, sealing glue is arranged between the first annular groove 301 and the sealing ring 501, a first sealing groove 502 is formed in the rubber diaphragm 5, a sealing cavity is formed by the first sealing groove 502 and a second sealing groove 804, the highest point of the sealing cavity is set to be a point A, sealing lubricating grease is arranged in the sealing cavity, a glue injection port and an exhaust port are formed in the second sealing groove 804, a glue injection port sealing member 9 is arranged on the glue injection port, and an exhaust port sealing member 10 is arranged on the exhaust port;

a first piston 6 is arranged between the rubber diaphragm 5 and the valve seat 7, a bolt 601 is movably inserted into a through hole formed in the first piston 6, and the bolt 601 penetrates through the rubber diaphragm 5 and is connected with the threaded hole 302.

In the sealing mechanism, the sealing ring 501 on the rubber diaphragm 5 is embedded into the first annular groove 301, a sealant is arranged between the first annular groove 301 and the sealing ring 501 to prevent water from overflowing between the first piston 6 and the rubber diaphragm 5, the first sealing groove 502 and the second sealing groove 804 form a sealing cavity, and sealing grease is injected into the sealing cavity to ensure the sealing performance of the sealing cavity, prevent water from overflowing between the rubber diaphragm 5 and the pump shell 8, and avoid the influence on the efficiency and the self-priming performance of the pump due to the loss of the rubber diaphragm 5 in the using process;

the grease is a thick grease-like semisolid which looks like a solid at normal temperature and in a static state, can keep the shape of the grease without flowing, can be adhered to metal without sliding off, can flow like a liquid at high temperature or under external force exceeding a certain limit, and is used as sealing grease specially for sealing.

As shown in fig. 1 and 2, the rubber diaphragm 5 is connected with a sealing strip 503, the valve seat 7 is provided with a sealing groove 701, and the sealing strip 503 is embedded in the sealing groove 701; the sealing performance between the rubber diaphragm 5 and the valve seat 7 is improved.

The rubber diaphragm 5 is connected with a limiting bulge, a limiting hole is formed in the first piston 6, and the limiting bulge is inserted into the limiting hole; the setting that spacing arch inserted spacing downthehole portion prevents that first piston 6 from taking place to rotate, improves first piston 6's positional stability, improves sealing performance.

As shown in fig. 3 and 4, the glue injection port sealing member 9 includes a glue injection port tube 901 connected to the glue injection port in a penetrating manner, a fin 902 is connected to an outer wall of the glue injection port tube 901, a sleeve 903 is movably sleeved on the glue injection port tube 901, the sleeve 903 is connected to a flange 904, a screw 905 is movably inserted into a through hole formed in the fin 902 and the flange 904, and the screw 905 is in threaded connection with a first nut 906;

a second piston 907 is inserted into the glue injection nozzle body 901 in a sliding mode, the second piston 907 is connected with a long rod 908, a support plate 909 is connected into the sleeve 903, the support plate 909 is connected with a bearing rod 911 through a spring 910, the lower end face of the bearing rod 911 abuts against the upper end of the long rod 908, two ends of the bearing rod 911 movably penetrate through a strip-shaped groove 912 formed in the side wall of the sleeve 903, a threaded section formed in the outer wall of the sleeve 903 is connected with a second nut 913 in a threaded mode, and the lower end of the second nut 911 abuts against the upper end face of the bearing rod 913.

A limiting groove is formed in the lower end face of the bearing rod 911, and the long rod 908 is inserted into the limiting groove; the contact stability of the long rod 908 and the bearing rod 911 is improved. A positioning ring 914 is connected in the glue injection pipe body 901, the positioning ring 914 is positioned below the second piston 907, and the height of the positioning ring 914 is higher than the point a; the positioning ring 914 is configured to limit the lowest position of the second piston 907 during movement, and to remind the user to replenish the sealing grease when the second piston 907 abuts against the positioning ring 914.

In the scheme, after a sealed cavity is filled with sealing grease, a second piston 907 is inserted into a glue injection opening pipe body 901, a sleeve 903 is sleeved on the glue injection opening pipe body 901, the positions of a fin plate 902 and a flanging 904 are fixed through a screw 905 and a first nut 906, the glue injection opening pipe body 901 and the sleeve 903 are installed, at the moment, a long rod 908 abuts against a bearing rod 911, the bearing rod 911 abuts against the upper wall of a strip-shaped groove 912, and a glue injection opening sealing piece 9 is arranged to seal the glue injection opening, so that the sealing performance of the sealed cavity is guaranteed;

the glue injection pipe 901 is also a sealed grease storage cavity, when the sealed grease is damaged in the use of equipment, the sealed grease in the glue injection pipe 901 is injected into the sealed cavity, and the sealed cavity is kept full of the sealed grease, so that the sealing performance is ensured;

when sealing grease in the glue injection pipe body 901 needs to be injected into the sealing cavity, the second nut 913 rotates on the sleeve 903 and moves downwards, the second nut 913 drives the second piston 907 to move downwards through the receiving rod 911 and the long rod 908, the first piston 6 extrudes the sealing grease in the glue injection pipe body 901 into the sealing cavity, at the moment, the spring 910 is compressed, and the receiving rod 911 slides in the strip-shaped groove 912.

As shown in fig. 3 and 5, the exhaust port sealing member 10 includes an exhaust port pipe 1001 connected to the exhaust port, a large head screw 1002 is connected to a threaded section formed on an inner wall of the exhaust port pipe 1001, and a rubber gasket 1003 is movably sleeved on the large head screw 1002; the exhaust port sealing element 10 seals the exhaust port to guarantee the sealing performance of the sealing cavity, when the sealing cavity is filled with sealing grease, the big head screw 1002 is connected with the exhaust port pipe body 1001, and the rubber gasket 1003 is extruded to deform to guarantee the sealing performance.

A positioning grid plate 1004 is connected in the exhaust port pipe 1001, and the height of the positioning grid plate 1004 is higher than the point A; when the sealing grease is in contact with the positioning grid plate 1004 and overflows from the positioning grid plate 1004, the sealing grease fills the sealing cavity, the positioning grid plate 1004 is arranged in the exhaust port pipe 1001, and the height of the positioning grid plate 1004 is higher than that of the point A, so that the injection degree of the sealing grease in the sealing cavity can be conveniently observed, and the sealing grease can be ensured to fill the sealing cavity.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.