TWI452207B - Reciprocating pump - Google Patents

Description

Reciprocating pump

This invention relates to a pump, and more particularly to a reciprocating pump.

A pump is a device that increases the pressure of a fluid that is introduced into it and then outputs the fluid. The pump needs to be driven by an external force to pressurize the fluid, and the pump can be classified into a gear pump, a screw pump, a plunger pump, a diaphragm pump, and the like.

Among them, the diaphragm pump usually uses a gas to apply pressure to the outside of the diaphragm and presses the fluid in the diaphragm to increase the fluid pressure. Since it is operated by the gas and is not easy to generate sparks, it can be used in a place with high safety requirements. When a single diaphragm pump is actuated, there is a time lag between when the diaphragm is compressed and when the diaphragm is stretched, so that the fluid in the diaphragm cannot be continuously output at a steady flow rate. Therefore, a reciprocating pump having a pair of diaphragms is further developed, the fluid pressure is increased by the pair of diaphragms, and the fluid in each diaphragm is alternately output. Reciprocating pumping fluid discharge is smaller than fluid input but high pressure, and can continuously output high pressure fluid.

With the development of the computer industry and the semiconductor industry, because the chemicals used in the process have lower ignition points and higher safety requirements, reciprocating pumps are commonly used to provide pressurized output of chemicals for supply. Used in wet chemical etching processes, acid system processes or cleaning system processes. Reciprocating pumps need to be able to provide precise flow and flow rates, which is critical to the above process, which would otherwise affect the productivity and productivity of the manufacturing process. Therefore, how to stabilize the flow rate and flow rate of the reciprocating pump output fluid is an important issue.

However, due to the conventional reciprocating pump design, when the fluids in the paired diaphragms are alternately output, the time difference between each alternate output cannot be maintained constant, and the pulsation phenomenon of the pump output fluid is unstable, resulting in instability. The flow rate and flow rate of the reciprocating pump output fluid vary unevenly.

Accordingly, it is an object of the present invention to provide a reciprocating pump to solve the problems of the prior art.

The technical means adopted by the present invention to solve the problems of the prior art is a reciprocating pump comprising a pair of telescopic members, a channel mechanism, a water inlet stop member, a water outlet stop member, and a linkage member.

The pair of telescopic members include a first telescopic member and a second telescopic member, and the first telescopic member and the second telescopic member each have a telescopic space.

The channel mechanism includes a water inlet channel and a water outlet channel, the water inlet channel has a main water inlet, a first water outlet connected to the expansion and contraction space of the first telescopic member, and a first space connected to the expansion and contraction space of the second telescopic member The water outlet has a main water outlet, a first water inlet connected to the first expansion and contraction space, and a second water inlet connected to the expansion and contraction space of the second expansion member.

The water inlet stop member portion is disposed in the water inlet passage, and the water inlet stop member has a water inlet body, a first water inlet portion corresponding to the first water outlet, and a first water inlet portion corresponding to the second water outlet Second stop into the water department.

The water outlet stop member is disposed in the water outlet passage, and the water outlet stopper member has a water outlet body, a first water stop portion corresponding to the first water inlet port, and a second water stop portion corresponding to the second water inlet port.

The linking member has two connecting ends respectively connected to the pair of telescopic members, and the other telescopic members are linked to each other when the one of the telescopic members is in compression operation.

The first water inlet portion closes the first water outlet when the first telescopic member is compressed, and the second water inlet portion opens the second water outlet by interlocking, and closes the second water inlet with the second water stop portion. The first water stop portion opens the first water inlet due to the interlocking, and the second water inlet portion closes the second water outlet when the second telescopic member is compressed, and the first water stop portion is opened by the second water inlet portion. The water outlet, and the first water stop portion is a closed first water inlet, and the second water stop portion is opened to open the second water inlet.

In an embodiment of the invention, the main water inlet of the water inlet channel is disposed between the first water outlet and the second water outlet, and the main water outlet of the water outlet is disposed between the first water inlet and the second water inlet.

In an embodiment of the invention, the water inlet stop member further has a sliding portion that abuts against the inner wall surface of the water inlet passage, and the water outlet stopper member further has a sliding portion that abuts against the inner wall surface of the water outlet passage. .

In an embodiment of the invention, the water inlet stop member has a recess provided at both ends of the water inlet stop member.

In an embodiment of the invention, the water outlet stop member has a recess disposed at an end edge of the first water stop portion and the second water stop portion facing the water outlet body.

In an embodiment of the invention, an inlet slip limiter is further included, corresponding to the position of the two ends of the water inlet stop member.

In an embodiment of the invention, the inflow sliding limit member is a hollow structure.

In an embodiment of the invention, the first water inlet is a through hole disposed in a water retaining aid, and the first water inlet is closed by contacting the through hole with the first water stopping portion, and the second water inlet is A through hole is provided in a water retaining aid, and the second water inlet is closed by contacting the through hole with the second water stopping portion.

In an embodiment of the invention, the first water inlet is a through hole disposed in a water retaining aid, and the first water inlet is opened by separating the through hole from the first water stopping portion, and the second water inlet is A through hole is provided in a water retaining aid, and the second water inlet is opened by separating the through hole from the second water stopping portion.

In an embodiment of the invention, the linking member includes a short rod, a long rod, and a connecting rod connecting the short rod and the long rod, and the first telescopic member and the second telescopic member are respectively connected with the short rod.

According to the technical means adopted by the present invention, the liquid is input into the reciprocating pump through the main water inlet of the inlet passage of the passage mechanism, and the main outlet of the outlet passage of the passage mechanism is reciprocatingly pumped away. The pair of telescopic members are respectively disposed on both sides of the channel mechanism, so that the liquid flowing out from the water outlet of the water inlet passage needs to flow into the water inlet of the water outlet passage through the expansion and contraction space of the telescopic member, and the autonomous water outlet is separated. Reciprocating pumping. The water inlet stop member partially disposed in the water inlet passage closes or opens the water outlet of the water inlet passage, so that the liquid alternately flows into the two expansion and contraction spaces, and is made by the water outlet stopper member disposed in the water outlet passage. The water inlet of the water outlet channel is closed or opened, so that the liquid in the two telescopic spaces is alternately discharged to the main water outlet, and the pair of telescopic members are linked by the linkage member, thereby ensuring compression or stretching of the pair of telescopic members. The time difference and the compressive force of the expansion member pressing liquid remain fixed. The liquid output from the autonomous water outlet is continuously output with stable and accurate flow rate and flow rate, thereby improving the production efficiency of the equipment connected to the output of the reciprocating pump, and reducing the waste of liquid raw materials.

Furthermore, the components of the reciprocating pump of the present invention are designed in a separate manner, as long as the component is repaired or replaced when the component is abnormal or damaged, without the need to replace the entire set of components. Therefore, some components can be quickly replaced during maintenance, and equipment downtime is shortened, thereby saving the manufacturer's maintenance cost and improving production efficiency.

The specific embodiments of the present invention will be further described by the following examples and the accompanying drawings.

1 and 3, FIG. 1 is a perspective view showing a reciprocating pump of the present invention, FIG. 2 is an exploded view showing the reciprocating pump of the present invention, and FIG. 3 is a view showing the present invention. A top perspective view of a reciprocating pump. The reciprocating pump 100 of the present invention includes a pair of telescopic members 1a, 1b, a passage mechanism 2, a water inlet stop member 3, a water discharge stopper member 4, and a linkage member 5.

The pair of telescopic members 1a and 1b are a first telescopic element 1a and a second telescopic element 1b, respectively. The first telescopic element 1a and the second telescopic element 1b can be stretched or compressed. The first telescopic element 1a has a first telescopic space S1, and the second telescopic element has a second telescopic space S2.

The passage mechanism 2 includes a water inlet passage 21 and a water outlet passage 22. The water inlet passage has a main water inlet 211, and the first water outlet 212a of the water inlet passage 21 communicates with the first expansion space S1, and the second water outlet 212b of the water inlet passage communicates with the second expansion space S2, and the water inlet stops The member 3 is partially disposed in the water inlet passage 21. In an embodiment of the present invention, the main water inlet 211 of the water inlet passage 21 is disposed between the first water outlet 212a and the second water outlet 212b, and a water inlet sliding stopper 213a is coupled to the first water outlet 212a. Corresponding to one end position of the water inlet stop member 3, a water inlet sliding stopper 213b is engaged with the second water outlet 212b and corresponding to the other end position of the water inlet stopper member 3, wherein the water inlet sliding limit member 213a, 213b are a hollow structure for liquid to pass through. The water outlet passage 22 has a main water outlet 221, and the first water inlet 2221a of the water outlet passage 22 communicates with the first expansion space S1, and the second water inlet 2221b of the water outlet passage 22 communicates with the second expansion space S2, and a water discharge stop member 4 is disposed in the water outlet channel 22. In the present embodiment, the main water outlet 221 of the water outlet passage 22 is disposed between the first water inlet 2221a and the second water inlet 2221b, and the first water inlet 2221a is a through hole provided in a water retaining aid 222a. The two water inlets 2221b are a through hole provided in a water retaining aid 222b.

The first telescopic element 1a, the second telescopic element 1b, and the channel mechanism 2 are arranged side by side, and the channel mechanism 2 is disposed between the first telescopic element 1a and the second telescopic element 1b to space the first telescopic element 1a and the second telescopic element. 1b. In the present embodiment, the first telescopic member 1a and the second telescopic member 1b are made of a wear-resistant Teflon material. The outer shape of the first telescopic element 1a and the second telescopic element 1b is similar to a cap body, and wrinkles are formed on the side wall surfaces of the first telescopic element 1a and the second telescopic element 1b to make the first telescopic element 1a and the second telescopic The member 1b can be compressed or stretched. The two sides of the channel mechanism 2 respectively have an outer groove 23a, 23b, and the outer grooves 23a, 23b are respectively closely fitted to the opening of the first telescopic element 1a and the opening of the second telescopic element 1b. Further, the inflow sliding stopper 213a and the water retaining aid 222a are located in the first telescopic space S1, and the inflow sliding stopper 213b and the water retaining aid 222b are located in the second telescopic space S2.

The first telescopic element 1a and the second telescopic element 1b are connected to each other through a linking member 5. The interlocking member 5 has two connecting ends 54a and 54b connected to the first telescopic element 1a and the second telescopic element 1b, respectively. In the present embodiment, a top portion 11a, 11b is formed on the tops of the first telescopic member 1a and the second telescopic member 1b, and a set of connectors 6a, 6b are respectively disposed on the socket portions 11a, 11b. The sockets 6a, 6b respectively have a screw hole 61a, 61b, and the screw holes 61a, 61b are respectively connected to the two connection ends 54a, 54b of the linkage member 5. The linking member 2 includes a short rod 51a, 51b, a long rod 52 parallel to the short rods 51a, 51b, a connecting rod 51a and a connecting rod 53a of the long rod 52, and one of the connecting short rod 51b and the long rod 52. Rod 53b. The short rods 51a, 51b, the long rods 52, and the connecting rods 53a, 53b are movable left and right and have the same displacement amount. Wherein, the connecting ends 54a, 54b are respectively located at one end of the short rods 51a, 51b. When the first telescopic member 1a is compressed, the short rods 51a, 51b of the linking member 5, the long rod 52 and the connecting rods 53a, 53b are linked together. The second telescopic member 1b is caused to be stretched. When the first telescopic element 1a is stretched, the short rods 51a and 51b of the interlocking member 5 and the long rods 52 and the connecting rods 53a and 53 are interlocked together to cause the second telescopic element 1b to be compressed.

In the present embodiment, the first telescopic member 1a is covered in a cover 7a. The cover 7a includes an intermediate casing 71a and an outer casing 72a. The intermediate casing 71a is disposed in the passage mechanism 2 and the outer casing 72a. between. Similar to the first telescopic member, the second telescopic member 1b is covered in a cover 7b. The cover 7b includes an intermediate case 71b and an outer case 72b. The intermediate case 71b is disposed on the channel mechanism 2 and the outer case 72b. between. The channel mechanism 2, the intermediate casing 71a, and the intermediate casing 71b are arranged side by side and respectively have a through hole 24, 711a, 711b, and the long rod 52 of the linking member 5 is inserted into the through holes 24, 711a, 711b and connected at both ends The connecting rod 53a disposed in one of the receiving grooves 721a of the outer casing 72a and the connecting rod 53b provided in one of the receiving grooves 721b of the outer casing 72b. The channel mechanism 2, the intermediate casing 71a, the intermediate casing 71b, the outer casing 72a and the outer casing 72b respectively have a through hole 25, 712a, 712b, 722a, 722b, and are worn by a locking rod 73. The passage holes 25, 712a, 712b, 722a, and 722b are placed to connect the passage mechanism 2, the intermediate casing 71a, the intermediate casing 71b, the outer casing 72a, and the outer casing 72b to each other.

In the present embodiment, the channel mechanism 2 is preferably an object capable of absorbing vibration energy, and is configured to absorb vibration energy generated when the first telescopic member 1a, the second telescopic member 1b, and the linking member 5 are actuated to avoid The vibration generated by the reciprocating pump 100 during operation affects the stability of the input and output liquids, as well as the damage of the components of the reciprocating pump 100 due to vibration.

Referring to Fig. 4 and in conjunction with Fig. 3, there is shown a perspective view of the water inlet stop member of the reciprocating pump of the present invention. The water inlet stopper member 3 has a water inlet body 31, a first water stop portion 32a corresponding to the first water outlet 212a, and a second water stop portion 32b corresponding to the second water outlet 212b. The first water inlet portion 32a and the second water inlet portion 32b are connected to the water inlet body 31, and the position and shape of the first water inlet portion 32a correspond to the first water outlet 212a, and the second water inlet portion The position and shape of the 32b correspond to the second water outlet 212b. In the present embodiment, the first water stop portion 32a and the second water stop portion 32b are lock sets having internal threads, and the internal threads of the first water stop portion 32a and the second water stop portion 32b correspond to the lock. It is fitted to the external thread of the water inlet body 31. In the present embodiment, the water inlet stopper member 3 additionally has a plurality of sliding portions 33 and a flat-shaped pushing portion 34. The sliding portion 33 is a member that protrudes outwardly from the water inlet body 31, and the sliding portion 33 abuts against the inner wall surface 214 of the water inlet passage 21, and has a positive water inlet stop member 3 in the water inlet passage 21. The sliding direction acts to effectively assist the first water ingress portion 32a in alignment with the first water outlet 212a and the auxiliary second water inlet 32b in alignment with the second water outlet 212b. The thrust of the liquid applied to the arc surface of the urging portion 34 has an effect of advancing the water inlet stopper member 3. Further, the water inlet stopper member 3 has a recess 35a, 35b provided at both ends of the water inlet stopper member 3 for liquid to pass through the recess portions 35a, 35b.

Referring to Fig. 4 and in conjunction with Fig. 3, there is shown a perspective view of the reciprocating pumping water stop member of the present invention. The water discharge stopper member 4 has a water discharge body 41, a first water stop portion 42a corresponding to the first water inlet port 2221a, and a second water stop portion 42b corresponding to the second water inlet port 2221b. The first water stop portion 42a and the second water stop portion 42b are connected to the water shutoff body 41, and the position and shape of the first water stop portion 42a correspond to the first water inlet 2221a, and the position and shape of the second water stop portion 42b. The size corresponds to the second water inlet 2221b. In the present embodiment, the first water stop portion 42a and the second water stop portion 42b are lock sets having internal threads, and the internal threads of the first water stop portion 42a and the second water stop portion 42b are correspondingly locked to the blocked water. The body 41 is externally threaded. In the present embodiment, the inlet and outlet water stop member additionally has a plurality of sliding portions 43 and a planar shape pushing portion 44. The sliding portion 43 is a member that protrudes from the water receiving body 41, and the sliding portion 43 abuts against the inner wall surface 223 of the water outlet passage 22, and has a function of guiding the sliding direction of the water stopping member 4 in the water outlet passage 22. And the first water stopping portion 42a can be effectively aligned with the first water inlet port 2221a and the auxiliary second water stopping portion 42b to be aligned with the second water inlet port 2221b. The thrust of the liquid applied to the curved surface of the urging portion 44 has an effect of advancing the water discharge stopper member 4. Further, the water discharge stopper member 4 has a concave portion 45a, 45b which is provided at an end edge of the first water stop portion 42a and the second water stop portion 42b facing the water discharge body 41, respectively, for liquid to pass through the concave portions 45a, 45b.

6 and FIG. 7, FIG. 6 is a schematic view showing the reciprocating pump of the present invention in a first operating state, and FIG. 7 is a view showing the reciprocating pump of the present invention in a second operating state. schematic diagram. In the present embodiment, the outer cover 7a has an air inlet 74a, and the air input mechanism 8 communicates with the air inlet 74a via a gas pipe 81a. The outer cover 7b has a gas delivery port 74b, and a gas delivery pipe 81b communicates with the gas delivery port 74b. The gas pipe 81a and the gas pipe 81b are connected in common to an electric valve 82, and the air input mechanism 8 continuously outputs the air A1 to the electric valve 82, and the electric valve 82 controls the air to be input into the outer casing 7a via the gas pipe 81a, or via the transmission. The air tube 81b is input into the outer cover 7b. A sensing driving member 9a is disposed on the inner wall surface of the outer cover 7a adjacent to the connecting rod 53a. A sensing driving member 9b is disposed on the inner side wall surface of the outer cover 7b adjacent to the connecting rod 53b, and the sensing driving members 9a, 9b are electrically connected. In the electric valve 82. The liquid F1 continuously enters the reciprocating pump 100 via the main water inlet 211 of the water inlet passage.

As shown in Fig. 6, when the air A1 output from the air input mechanism 8 is input into the outer cover 7a, the first telescopic member 1a is compressed by the air and is compressed, and the second telescopic member 1b is extended by the interlocking member 5 . The liquid entering the autonomous water inlet 211 flows into the water inlet passage 21, and the water inlet stopper member 3 is slid in the water inlet passage 21 by the urging force of the liquid. When the first telescopic member 1a is actuated to make the liquid in the first telescopic space S1 have sufficient water pressure, the driving force of the liquid pushes the water inlet stopper member 3 toward the water inflow sliding stopper 213b to make the water inlet. The stopper member 3 blocks and closes the first water outlet 212a with the first water ingress portion 32a, and the second water inlet portion 32b opens the second water outlet 212b by interlocking. The inflow sliding stopper 213b abuts against the second water ingress portion 32b to restrict the displacement amount of the water inlet stopper member 3 and to assist the impact force of the water inlet stopper member 3. The water discharge stopper member 4 is slid in the water outlet passage 22 by the urging force of the liquid, and the urging force of the liquid pushes the water discharge stopper member 4 to the water retaining aid 222b, and the second water stop portion 42b and the water retaining aid The through hole of the member 222b contacts and closes the second water inlet 2221b, and the first water stop portion 42a is separated from the through hole of the water retaining aid 222a by the interlocking to open the first water inlet 2221a. Therefore, the liquid entering the autonomous water inlet 221 continuously flows through the concave portion 35b and is injected into the second expansion and contraction space S2 by the second water outlet 212b, and the liquid flow in the first expansion and contraction space S1 passes through the first portion through the concave portion 45a. The nozzle 2221a and the autonomous water outlet 221 exit the reciprocating pump 100.

When the second telescopic member 1b is stretched to bring the connecting rod 53b into contact with the sensing driving member 9b, the sensing driving member 9b controls the switching of the valve in the electric valve 82 to cover the air in the outer cover 7a of the first telescopic member 1a. Discharge, and the air A1 generated by the air input mechanism 8 is input into the cover 2b of the second telescopic member (as shown in FIG. 7), and the second telescopic member 1b is compressed by the air to be compressed, and the linkage is made. A telescopic member 1a is stretched. When the second telescopic member 1b is compressed and the liquid in the second telescopic space S2 has sufficient water pressure, the driving force of the liquid pushes the water inlet stopper member 3 toward the water inflow sliding stopper 213a to make the water inlet. The stopper member 3 blocks and closes the second water outlet 212b with the second water ingress portion 32b, and the first water inlet portion 32a opens the first water outlet 212a by interlocking. The inflow sliding stopper 213a abuts against the first water ingress portion 32a to restrict the displacement amount of the water inlet stopper member 3 and to assist the impact force of the water inlet stopper member 3. The water discharge stopper member 4 is slid in the water outlet passage 22 by the urging force of the liquid, and the urging force of the liquid pushes the water discharge stopper member 4 to the water retaining aid 222a, so that the first water stop portion 42a and the water retaining aid are provided. The through hole of the member 222a closes the first water inlet 2221a with the contact, and the second water stop portion 42b is separated from the through hole of the water retaining aid 222b by the interlocking to open the second water inlet 2221b. Therefore, the autonomous water inlet 221 enters the liquid and continuously flows through the recess 35a and is injected into the first telescopic space S1 via the first water outlet 212a, and the liquid flow in the second telescopic space S2 passes through the recess through the second water inlet 2221b. The 45b autonomous water outlet 221 exits the reciprocating pump 100.

When the first telescopic member 1a is extended to contact the sensing driving member 9a, the sensing driving member 9a controls the switching of the valve in the electric valve 82 to discharge the air in the outer cover 7b of the second telescopic member 1b (return) Referring to Fig. 6), the air A1 generated by the air input mechanism 8 is input into the outer cover 7a covering the first telescopic member 1a, thus forming a reciprocating operation cycle. In the case where the cover, the air pipe, and the air input mechanism are not provided, the first telescopic element 1a and the second telescopic element 1b can be biased by the external force to the connecting rods 53a and 53b to compress the first telescopic element 1a. The second telescopic element 1b is stretched or the second telescopic element 1b is compressed when the first telescopic element 1a is stretched.

Due to the above-described configuration and actuation mode of the reciprocating pump 100, the liquid alternately flows into the water outlet passage 22 from the first water inlet 2221a or the second water inlet 2221b, respectively, and flows to the main water outlet 221 and then leaves the reciprocating type. Pump 100. As described above, the actuation state of the reciprocating pump 100 is a cyclical actuation. With this cyclical operation, the time difference, flow rate and flow rate of the liquid outputted from the main water outlet 221 can be kept constant, and the liquid flow rate output from the main water outlet 221 is larger than the liquid flow rate input from the main water inlet 211. .

It can be seen from the above embodiments that the reciprocating pump provided by the present invention has industrial utilization value, and therefore the present invention has met the requirements of the patent. The above description is only for the preferred embodiment of the present invention, and those skilled in the art can make other various improvements according to the above description, but these changes still belong to the inventive spirit of the present invention and the following definitions. In the scope of patents.

100. . . Reciprocating pump

1a. . . First telescopic member

11a. . . Socket

1b. . . Second telescopic member

11b. . . Socket

2. . . Channel mechanism

twenty one. . . Water inlet channel

211. . . Main inlet

212a. . . First outlet

212b. . . Second outlet

213a, 213b. . . Inlet sliding limiter

214. . . Inner wall

twenty two. . . Water passage

221. . . Main outlet

222a, 222b. . . Water retaining aid

2221a. . . First water inlet

2221b. . . Second water inlet

223. . . Inner wall

23a, 23b. . . Outer slot

twenty four. . . perforation

25. . . Through hole

3. . . Inlet stop member

31. . . Block water inlet body

32a. . . First stop water

32b. . . Second stop water

33. . . Sliding portion

34. . . Pushing department

35a, 35b. . . Concave

4. . . Water stop stop member

41. . . Blocking water body

42a. . . First water outlet

42b. . . Second water outlet

43. . . Sliding portion

44. . . Pushing department

45a, 45b. . . Concave

5. . . Linkage member

51a, 51b. . . Short rod

52. . . Long pole

53a, 53b. . . Connecting rod

54a, 54b. . . Connection end

6a, 6b. . . Socket

61a, 61b. . . Screw hole

7a, 7b. . . Cover

71a, 71b. . . Intermediate housing

711a, 711b. . . perforation

712a, 712b. . . Through hole

72a, 72b. . . Outer casing

721a, 721b. . . Locating slot

722a, 722b. . . Through hole

73. . . Locking rod

74a, 74b. . . Air outlet

8. . . Air input mechanism

81a, 81b. . . Gas pipe

82. . . Electric valve

9a, 9b. . . Sensing driver

A1. . . air

F1. . . liquid

S1. . . First expansion space

S2. . . Second expansion space

Figure 1 is a perspective view showing the reciprocating pump of the present invention.

Figure 2 is an exploded view showing the reciprocating pump of the present invention.

Figure 3 is a top perspective view showing the reciprocating pump of the present invention.

Fig. 4 is a perspective view showing the water inlet stopper member of the reciprocating pump of the present invention.

Fig. 5 is a perspective view showing the water discharge stopper member of the reciprocating pump of the present invention.

Figure 6 is a schematic view showing the reciprocating pump of the present invention in a first actuated state.

Figure 7 is a schematic view showing the reciprocating pump of the present invention in a second operational state.

100. . . Reciprocating pump

2. . . Channel mechanism

211. . . Main inlet

221. . . Main outlet

7a, 7b. . . Cover

71a, 71b. . . Intermediate housing

72a, 72b. . . Outer casing

73. . . Locking rod

74a, 74b. . . Air outlet

Claims (10)

A reciprocating pump comprising: a pair of telescopic members, comprising a first telescopic member and a second telescopic member, the first telescopic member and the second telescopic member respectively having a telescopic space; a channel mechanism including a a water passage and a water outlet passage, the water inlet passage having a main water inlet, a first water outlet communicating with the expansion and contraction space of the first telescopic member, and a second outlet communicating with the expansion and contraction space of the second telescopic member a water outlet, the water outlet passage has a main water outlet, a first water inlet connected to the first expansion and contraction space of the first telescopic member, and a second water inlet connected to the expansion and contraction space of the second telescopic member; a blocking member partially disposed in the water inlet passage, the water inlet stopping member having a water inlet body, a first water inlet portion corresponding to the first water outlet, and a second water inlet corresponding to the second water outlet a second water inlet portion; a water outlet stop member disposed in the water outlet passage, the water outlet stop member having a water outlet body, a first water stop portion corresponding to the first water inlet, and corresponding a second water stopping portion of the second water inlet; a linking member having two connecting ends respectively connected to the pair of telescopic members, and interlocking the other telescopic members to stretch when the one of the telescopic members is in compression operation The first water inlet portion closes the first water outlet when the first telescopic member is compressed, and the second water inlet portion opens the second water outlet by interlocking, and the second water stop is used The second water inlet is closed, and the first water stop portion opens the first water inlet by interlocking, and the second water inlet portion closes the second water outlet when the second telescopic member is compressed. The first water inlet portion opens the second water outlet by interlocking, and the first water stopping portion closes the first water inlet, and the second water stopping portion opens the second water inlet due to the interlocking. The reciprocating pump according to claim 1, wherein the main water inlet of the water inlet channel is disposed between the first water outlet and the second water outlet, and the main water outlet of the water outlet channel is set. Between the first water inlet and the second water inlet. The reciprocating pump of claim 1, wherein the water inlet stop member further has a sliding portion that abuts against an inner wall surface of the water inlet passage, and the water outlet stopper member has a sliding a part that abuts against the inner wall of the water outlet. The reciprocating pump according to claim 1, wherein the water inlet stopper member has a recess provided at both ends of the water inlet stopper member. The reciprocating pump according to claim 1, wherein the water discharge stopper member has a recessed portion respectively disposed at an edge of the first water stop portion and the second water stop portion facing the water outlet body. The reciprocating pump according to claim 1, further comprising an inflow sliding limit member corresponding to both ends of the water inlet stop member. The reciprocating pump of claim 6, wherein the inflow sliding limiter is a hollow structure. The reciprocating pump of claim 1, wherein the first water inlet is a through hole provided in a water retaining aid, and the through hole is closed by contacting the first water stopping portion. The first water inlet is a through hole provided in a water retaining aid, and the second water inlet is closed by contacting the through hole with the second water stopping portion. The reciprocating pump of claim 1, wherein the first water inlet is a through hole provided in a water retaining aid, and the through hole is separated from the first water stopping portion to open the hole The first water inlet is a through hole provided in a water retaining aid, and the second water inlet is opened by separating the through hole from the second water stopping portion. The reciprocating pump of claim 1, wherein the linking member comprises a short rod, a long rod, and a connecting rod connecting the short rod and the long rod, the first telescopic member and the first The two telescopic members are respectively connected to the short rod.