A piston mud pump

Abstract

The present invention discloses a piston-type mud pump, which includes a feeding mechanism and a discharging mechanism. The feeding mechanism includes a feeding channel, a piston and a first power member. The feeding channel extends vertically. The piston is slidably connected to the feeding channel. The first power member is used to drive the piston to move up and down. A first inner convex ring is provided at the bottom of the feeding channel. The inner side of the first inner convex ring forms a feeding port. A first ball is arranged in the feeding channel. The first ball is located between the piston and the first inner convex ring. The first ball can cooperate with the first inner convex ring to close the feeding port. The discharging mechanism includes a discharging channel and a second ball. The discharging channel has a communication port communicating with the side wall of the feeding channel. The communication port is located below the piston. A second inner convex ring is arranged in the discharging channel. The inner side of the second inner convex ring forms a discharging port. The second ball is located on the side of the second inner convex ring away from the communication port. The second ball can cooperate with the second inner convex ring to close the discharging port. The piston-type mud pump of the present invention can reduce the floor area and be flexibly installed and arranged.

Description

Technical Field

[0001] The present invention relates to the technical field of mud pump structures, and particularly to a piston-type mud pump. Background Art

[0002] A mud pump is a fluid material extraction device, commonly used for extracting and discharging fluid materials such as mud, impurities, and water.

[0003] However, conventional mud pumps have a large floor area and are inconvenient to install and arrange. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a piston-type mud pump, which can reduce the floor area and be flexibly installed and arranged.

[0005] A piston-type mud pump according to an embodiment of the first aspect of the present invention includes: a feeding mechanism, including a feeding channel, a piston, and a first power member. The feeding channel extends vertically. The piston is arranged in the feeding channel and is slidably connected to the feeding channel. The first power member is used to drive the piston to move up and down. A first inner convex ring is arranged at the bottom of the feeding channel, and an inner side of the first inner convex ring forms a feeding port. A first sphere is arranged in the feeding channel, and the first sphere is located between the piston and the first inner convex ring. The first sphere can cooperate with the first inner convex ring to close the feeding port. A discharging mechanism, including a discharging channel and a second sphere. The discharging channel has a communication port communicating with a side wall of the feeding channel. The communication port is located below the piston. A second inner convex ring is arranged in the discharging channel, and an inner side of the second inner convex ring forms a discharging port. The second sphere is located on a side of the second inner convex ring away from the communication port, and the second sphere is located at the top of the second inner convex ring. The second sphere can cooperate with the second inner convex ring to close the discharging port.

[0006] A piston-type mud pump according to an embodiment of the present invention has at least the following beneficial effects:

[0007] 1. By providing a vertically extending feeding channel, the floor area occupied by the feeding mechanism in the horizontal direction is reduced, and further, the floor area of the mud pump is reduced, making the installation and arrangement of the mud pump flexible.

[0008] 2. By providing a piston in the feeding channel, the piston is slidably connected to the feeding channel, and the first power member is used to drive the piston to move up and down, so as to conveniently provide power for the mud pump to extract and discharge fluid materials.

[0009] 3. By providing a first inner convex ring at the bottom of the feed channel, a feed port is formed inside the first inner convex ring. A first sphere is arranged in the feed channel, and the first sphere is located between the piston and the first inner convex ring. The first sphere can cooperate with the first inner convex ring to seal the feed port. It can be understood that when the piston rises, a negative pressure is formed in the feed channel. Thus, the negative pressure formed in the feed channel drives the first sphere to rise and separate from the first inner convex ring, causing the feed port to open. At the same time, the negative pressure formed in the feed channel can extract the fluid material to enter the feed channel from the feed port. Further, the feeding is completed. When the piston descends, the pressure in the feed channel increases. Thus, the increased pressure in the feed channel presses the first sphere towards the first inner convex ring, causing the first sphere to abut against the first inner convex ring to seal the feed port. Further, it is avoided that the fluid material flows back from the feed port when the piston extrudes the fluid material.

[0010] 4. By providing a discharge mechanism, the discharge mechanism includes a discharge channel and a second sphere. The discharge channel has a communication port communicating with the side wall of the feed channel. The communication port is located below the piston. A second inner convex ring is arranged in the discharge channel, and a discharge port is formed inside the second inner convex ring. The second sphere is located on the side of the second inner convex ring away from the communication port, and the second sphere is located at the top of the second inner convex ring. It needs to be explained that the second sphere being located at the top of the second inner convex ring means that the second sphere is located on the upper side in the up-down direction of the second inner convex ring. Thus, the second sphere can approach the second inner convex ring by its own gravity in the natural state, avoiding the second sphere detaching from the discharge channel. In addition, the second sphere can cooperate with the second inner convex ring to seal the discharge port. It can be understood that when the piston descends, the pressure in the feed channel increases. Thus, the increased pressure in the feed channel presses the second sphere to separate from the second inner convex ring, causing the discharge port to open. At the same time, the fluid material extruded from the feed channel can be extruded from the discharge port. Further, the discharging is completed. When the piston rises, a negative pressure is formed in the feed channel. Thus, the negative pressure formed in the feed channel drives the second sphere to approach the second inner convex ring, causing the second sphere to abut against the second inner convex ring to seal the discharge port. Further, it is avoided that the piston pump sucks the fluid material outside the discharge channel back into the cylinder when sucking the fluid material.

[0011] 5. By using the feed mechanism and the discharge mechanism in cooperation, the mud pump can achieve one-way feeding and one-way discharging. Thus, the effect of the mud pump sucking the fluid material is better.

[0012] According to some embodiments of the present invention, the feed mechanism includes a cylinder, a part of the feed channel is formed inside the cylinder, the piston is located inside the cylinder, and the piston is slidably connected to the cylinder.

[0013] Advantageously, by providing a cylinder barrel in the feeding mechanism, a part of the feeding channel is formed inside the cylinder barrel. A piston is located inside the cylinder barrel and is slidably connected to the cylinder barrel. Thus, the cylinder barrel is used as the entity forming the part of the feeding channel that cooperates with the piston, making the sliding fit between the piston and the feeding channel smoother. Additionally, the cylinder barrel mechanism is simple and convenient to machine and manufacture.

[0014] According to some embodiments of the present invention, a first convex ring is provided at the bottom end of the cylinder barrel, and the first convex ring is used to mount and fix the cylinder barrel.

[0015] Advantageously, by providing a first convex ring at the bottom end of the cylinder barrel, the first convex ring is used to mount and fix the cylinder barrel. Thus, on the one hand, the first convex ring can provide a position for screw installation, facilitating the locking and fixing of the cylinder barrel with screws. On the other hand, the bottom end of the first convex ring can abut and support the entity forming the other part of the feeding channel. Furthermore, the contact area between the cylinder barrel and the entity forming the other part of the feeding channel is increased, making the cylinder barrel more stable.

[0016] According to some embodiments of the present invention, a first material pipe is further included. The first material pipe includes a vertical pipe portion and a side pipe portion communicating with the side wall of the vertical pipe portion. The inside of the vertical pipe portion is used to form the feeding channel, and the inside of the side pipe portion is used to form the discharging channel.

[0017] Advantageously, by providing the first material pipe, the first material pipe includes a vertical pipe portion and a side pipe portion communicating with the side wall of the vertical pipe portion. The inside of the vertical pipe portion is used to form the feeding channel, and the inside of the side pipe portion is used to form the discharging channel. It should be noted that the inside of the vertical pipe portion can form a part of the feeding channel or the entire feeding channel, and the inside of the side pipe portion can form a part of the discharging channel or the entire discharging channel. Thus, the first material pipe, as the entity forming the feeding channel and the discharging channel, can make the sealing performance at the connection between the feeding channel and the discharging channel better. Furthermore, the pressure stability inside the feeding channel and the discharging channel is ensured.

[0018] According to some embodiments of the present invention, the side pipe portion includes a bent section and a vertical section connected in sequence. The bent section communicates with the vertical pipe portion, and a second inner convex ring is provided on the vertical section.

[0019] Advantageously, by setting the side pipe portion as a bent section and a vertical section connected in sequence, the bent section communicates with the vertical pipe portion, and the second inner convex ring is provided on the vertical section. Thus, the second inner convex ring can be arranged with an offset in the vertical direction. It should be noted that the meaning of offset is non - parallel. Furthermore, it is convenient to arrange the second sphere on the top of the second inner convex ring.

[0020] According to some embodiments of the present invention, the second inner convex ring is located at the top of the vertical section.

[0021] Advantageously, by disposing the second inner convex ring at the top of the vertical section, the second inner convex ring is close to the port of the vertical section, thereby facilitating the machining or installation of the second inner convex ring.

[0022] According to some embodiments of the present invention, it further includes a second material pipe, the second material pipe is located at the bottom of the feeding channel, the second material pipe is used to direct the fluid material to the feeding port, and the first inner convex ring is disposed on the second material pipe.

[0023] Advantageously, by disposing the second material pipe at the bottom of the feeding channel, the second material pipe is used to direct the fluid material to the feeding port, and the first inner convex ring is disposed on the second material pipe. Thus, the first inner convex ring is disposed on an entity outside the feeding channel, facilitating the machining of the entity forming the feeding channel.

[0024] According to some embodiments of the present invention, the first inner convex ring is located at the top of the second material pipe.

[0025] Advantageously, by disposing the first inner convex ring at the top of the second material pipe, the first inner convex ring is close to the port of the second material pipe, thereby facilitating the machining or installation of the first inner convex ring.

[0026] According to some embodiments of the present invention, it further includes a second material pipe, the second material pipe includes a main pipe and a plurality of auxiliary pipes communicating with the main pipe, the main pipe has a first material port for inputting fluid material, and the auxiliary pipes are used to direct the fluid material to the feeding mechanism, and one auxiliary pipe is connected to one feeding mechanism.

[0027] Advantageously, by providing the second material pipe, the second material pipe includes a main pipe and a plurality of auxiliary pipes communicating with the main pipe, the main pipe has a first material port for inputting fluid material, and the auxiliary pipes are used to direct the fluid material to the feeding mechanism, and one auxiliary pipe is connected to one feeding mechanism. It can be understood that a plurality of feeding mechanisms can extract fluid material from one first material port. Thus, by using different numbers of feeding mechanisms, the pumping pressure can be adjusted, and further, the extraction flow rate can be conveniently adjusted.

[0028] According to some embodiments of the present invention, it further includes a third material pipe, the third material pipe is used to form the discharging channel, the third material pipe includes a straight pipe and two arc pipes communicating with the straight pipe, the straight pipe has a second material port for outputting fluid material, and the arc pipes are used to direct the fluid material output from the discharging channel to the straight pipe, and one arc pipe is connected to one discharging port.

[0029] Advantageously, by providing a third material pipe which is used to form a discharge channel, the third material pipe includes a straight pipe and two arc pipes communicating with the straight pipe. The straight pipe has a second material port for outputting fluid material, and the arc pipes are used to direct the fluid material output from the discharge port to the straight pipe. One arc pipe is connected to one discharge port. It can be understood that the two arc pipes can output fluid material from one second material port, thereby facilitating the unified collection of the fluid material output from the two discharge ports.

[0030] Additional aspects and advantages of the present invention will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0032] Figure 1 is a schematic structural view of a piston-type mud pump according to an embodiment of the present invention.

[0033] Reference numerals: 100 - feed channel, 110 - piston, 120 - first power member, 130 - first inner convex ring, 140 - first sphere, 150 - discharge channel, 160 - second sphere, 170 - second inner convex ring, 180 - cylinder barrel, 190 - first convex ring, 200 - first material pipe, 210 - vertical pipe portion, 220 - side pipe portion, 230 - bending section, 240 - vertical section, 250 - second material pipe, 260 - main pipe, 270 - sub-pipe, 280 - first material port, 290 - third material pipe, 300 - straight pipe, 310 - arc pipe, 320 - second material port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0035] In the description of the present invention, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for facilitating the description of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0036] In the description of the present invention, "several" means one or more, "multiple" means more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the corresponding number, while understandings such as "above", "below", "within", etc. include the corresponding number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features or implicitly specifying the sequence relationship of the indicated technical features.

[0037] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0038] The following describes a piston type mud pump according to an embodiment of the present invention with reference to the accompanying drawings.

[0039] Refer to Figure 1 , a piston 110 type mud pump according to an embodiment of the present invention includes a feeding mechanism and a discharging mechanism.

[0040] For the feeding mechanism, the feeding mechanism includes a feeding channel 100, a piston 110, and a first power member 120, and the feeding channel 100 extends vertically.

[0041] In this embodiment, by providing the vertically extending feeding channel 100, thus, the occupied area of the feeding mechanism in the horizontal direction is reduced, and further, the occupied area of the mud pump is reduced, making the installation and layout of the mud pump flexible.

[0042] Specifically, the piston 110 is disposed in the feeding channel 100, the piston 110 is slidably connected to the feeding channel 100, and the first power member 120 is used to drive the piston 110 to move up and down.

[0043] In this embodiment, by providing the piston 110 in the feeding channel 100, the piston 110 is slidably connected to the feeding channel 100, and the first power member 120 is used to drive the piston 110 to move up and down, thus, it is convenient to provide power for the mud pump to extract fluid materials and discharge fluid materials.

[0044] It should be explained that the first power member 120 can be set as an oil cylinder or a gas cylinder.

[0045] In some specific embodiments, the feeding mechanism can include a cylinder barrel 180, the interior of the cylinder barrel 180 forms a part of the feeding channel 100, the piston 110 is located in the cylinder barrel 180, and the piston 110 is slidably connected to the cylinder barrel 180.

[0046] In this embodiment, a cylinder barrel 180 is provided in the feeding mechanism. A part of the feeding channel 100 is formed inside the cylinder barrel 180. The piston 110 is located inside the cylinder barrel 180 and is slidably connected to the cylinder barrel 180. Thus, the cylinder barrel 180 is used as the entity forming the part of the feeding channel 100 that cooperates with the piston 110, making the sliding fit between the piston 110 and the feeding channel 100 smoother. In addition, the structure of the cylinder barrel 180 is simple and convenient for processing and manufacturing.

[0047] In some specific embodiments, a first convex ring 190 may be provided at the bottom end of the cylinder barrel 180, and the first convex ring 190 is used for installing and fixing the cylinder barrel 180.

[0048] In this embodiment, by providing the first convex ring 190 at the bottom end of the cylinder barrel 180, and the first convex ring 190 is used for installing and fixing the cylinder barrel 180. Thus, on the one hand, the first convex ring 190 can provide a position for screw installation, facilitating the locking and fixing of the cylinder barrel 180 with screws. On the other hand, the bottom end of the first convex ring 190 can abut and support the entity forming another part of the feeding channel 100. Furthermore, the contact area between the cylinder barrel 180 and the entity forming another part of the feeding channel 100 is increased, making the cylinder barrel 180 more stable.

[0049] In some specific embodiments, a first inner convex ring 130 is provided at the bottom of the feeding channel 100. The inner side of the first inner convex ring 130 forms a feeding port. A first sphere 140 is provided in the feeding channel 100. The first sphere 140 is located between the piston 110 and the first inner convex ring 130, and the first sphere 140 can cooperate with the first inner convex ring 130 to close the feeding port.

[0050] In this embodiment, by providing the first inner convex ring 130 at the bottom of the feeding channel 100, the inner side of the first inner convex ring 130 forms a feeding port. A first sphere 140 is provided in the feeding channel 100. The first sphere 140 is located between the piston 110 and the first inner convex ring 130, and the first sphere 140 can cooperate with the first inner convex ring 130 to close the feeding port. It can be understood that when the piston 110 rises, a negative pressure is formed in the feeding channel 100. Thus, the negative pressure formed in the feeding channel 100 drives the first sphere 140 to rise and separate from the first inner convex ring 130, making the feeding port open. At the same time, the negative pressure formed in the feeding channel 100 can extract fluid materials to enter the feeding channel 100 from the feeding port. Furthermore, the feeding is completed. When the piston 110 descends, the pressure in the feeding channel 100 increases. Thus, the increased pressure in the feeding channel 100 squeezes the first sphere 140 towards the first inner convex ring 130, making the first sphere 140 abut against the first inner convex ring 130 to seal the feeding port. Furthermore, it avoids the reverse flow of fluid materials from the feeding port when the piston 110 extrudes the fluid materials.

[0051] In some specific embodiments, it further includes a second material pipe 250. The second material pipe 250 is located at the bottom of the feeding channel 100. The second material pipe 250 is used to direct the fluid material to the feeding port, and the first inner convex ring 130 is provided on the second material pipe 250.

[0052] In this embodiment, by arranging the second material pipe 250 at the bottom of the feeding channel 100, the second material pipe 250 is used to direct the fluid material to the feeding port, and the first inner convex ring 130 is provided on the second material pipe 250. Thus, the first inner convex ring 130 is arranged on the entity outside the feeding channel 100, which is convenient for processing the entity forming the feeding channel 100.

[0053] Furthermore, the first inner convex ring 130 can be located at the top of the second material pipe 250.

[0054] In this embodiment, by arranging the first inner convex ring 130 at the top of the second material pipe 250, the first inner convex ring 130 is close to the port of the second material pipe 250, which is convenient for processing or installing the first inner convex ring 130.

[0055] In some specific embodiments, it further includes a second material pipe 250. The second material pipe 250 includes a main pipe 260 and several auxiliary pipes 270 communicating with the main pipe 260. The main pipe 260 has a first material port 280 for inputting fluid material. The auxiliary pipes 270 are used to direct the fluid material to the feeding mechanism, and one auxiliary pipe 270 is connected to one feeding mechanism.

[0056] In this embodiment, by arranging the second material pipe 250, the second material pipe 250 includes a main pipe 260 and several auxiliary pipes 270 communicating with the main pipe 260. The main pipe 260 has a first material port 280 for inputting fluid material. The auxiliary pipes 270 are used to direct the fluid material to the feeding mechanism, and one auxiliary pipe 270 is connected to one feeding mechanism. It can be understood that several feeding mechanisms can extract fluid material from one first material port 280. Thus, by using different numbers of feeding mechanisms, the pumping pressure can be adjusted, and furthermore, it is convenient to adjust the pumping flow rate.

[0057] For the discharging mechanism, the discharging mechanism includes a discharging channel 150 and a second sphere 160. The discharging channel 150 has a communication port communicating with the side wall of the feeding channel 100. The communication port is located below the piston 110. A second inner convex ring 170 is arranged in the discharging channel 150. The inner side of the second inner convex ring 170 forms a discharging port. The second sphere 160 is located on the side of the second inner convex ring 170 away from the communication port, and the second sphere 160 is located at the top of the second inner convex ring 170. The second sphere 160 can cooperate with the second inner convex ring 170 to close the discharging port.

[0058] In this embodiment, a discharging mechanism is provided. The discharging mechanism includes a discharging channel 150 and a second sphere 160. The discharging channel 150 has a communication port that communicates with the side wall of the feeding channel 100. The communication port is located below the piston 110. A second inner convex ring 170 is provided in the discharging channel 150. The inner side of the second inner convex ring 170 forms a discharging port. The second sphere 160 is located on the side of the second inner convex ring 170 away from the communication port, and the second sphere 160 is located at the top of the second inner convex ring 170. It should be noted that the second sphere 160 being located at the top of the second inner convex ring 170 means that the second sphere 160 is located on the upper side in the up-and-down direction of the second inner convex ring 170. Thus, the second sphere 160 can approach the second inner convex ring 170 by its own gravity in the natural state, preventing the second sphere 160 from detaching from the discharging channel 150. Additionally, the second sphere 160 can cooperate with the second inner convex ring 170 to close the discharging port. It can be understood that when the piston 110 descends, the pressure in the feeding channel 100 increases. Thus, the increased pressure in the feeding channel 100 squeezes the second sphere 160 away from the second inner convex ring 170, opening the discharging port. At the same time, the fluid material extruded from the feeding channel 100 can be extruded from the discharging port, thereby completing the discharging. When the piston 110 ascends, a negative pressure is formed in the feeding channel 100. Thus, the negative pressure formed in the feeding channel 100 drives the second sphere 160 to approach the second inner convex ring 170, causing the second sphere 160 to abut against and seal the discharging port, thereby preventing the piston 110 pump from sucking the fluid material outside the discharging channel 150 back into the cylinder 180 when extracting the fluid material.

[0059] In some specific embodiments, a first material pipe 200 is further included. The first material pipe 200 includes a vertical pipe portion 210 and a side pipe portion 220 that communicates with the side wall of the vertical pipe portion 210. The inside of the vertical pipe portion 210 is used to form the feeding channel 100, and the inside of the side pipe portion 220 is used to form the discharging channel 150.

[0060] In this embodiment, by providing the first material pipe 200, the first material pipe 200 includes a vertical pipe portion 210 and a side pipe portion 220 that communicates with the side wall of the vertical pipe portion 210. The inside of the vertical pipe portion 210 is used to form the feeding channel 100, and the inside of the side pipe portion 220 is used to form the discharging channel 150. It should be noted that the inside of the vertical pipe portion 210 can form a part of the feeding channel 100 or the entire feeding channel 100, and the inside of the side pipe portion 220 can form a part of the discharging channel 150 or the entire discharging channel 150. Thus, as an entity for forming the feeding channel 100 and the discharging channel 150, the first material pipe 200 can make the sealing performance at the connection of the feeding channel 100 and the discharging channel 150 better, and further ensure the pressure stability in the feeding channel 100 and the discharging channel 150.

[0061] In some specific embodiments, the side pipe portion 220 may include a bent section 230 and a vertical section 240 connected in sequence. The bent section 230 communicates with the vertical pipe portion 210, and the second inner convex ring 170 is disposed on the vertical section 240.

[0062] In this embodiment, by setting the side pipe portion 220 as the bent section 230 and the vertical section 240 connected in sequence, the bent section 230 communicates with the vertical pipe portion 210, and the second inner convex ring 170 is disposed on the vertical section 240. Thus, the second inner convex ring 170 can be disposed with an offset in the vertical direction. It should be noted that the meaning of offset is non-parallel. Furthermore, it is convenient to dispose the second sphere 160 on the top of the second inner convex ring 170.

[0063] In some specific embodiments, the second inner convex ring 170 may be located at the top of the vertical section 240.

[0064] In this embodiment, by disposing the second inner convex ring 170 at the top of the vertical section 240, the second inner convex ring 170 is close to the port of the vertical section 240. Thus, it is convenient to process or install the second inner convex ring 170.

[0065] In some specific embodiments, a third material pipe 290 is further included. The third material pipe 290 is used to form a discharge channel 150. The third material pipe 290 includes a straight pipe 300 and two arc pipes 310 communicating with the straight pipe 300. The straight pipe 300 has a second material port 320 for outputting fluid material. The arc pipes 310 are used to direct the fluid material output from the discharge port to the straight pipe 300. One arc pipe 310 is connected to one discharge port.

[0066] In this embodiment, by providing the third material pipe 290, the third material pipe 290 is used to form a discharge channel 150. The third material pipe 290 includes a straight pipe 300 and two arc pipes 310 communicating with the straight pipe 300. The straight pipe 300 has a second material port 320 for outputting fluid material. The arc pipes 310 are used to direct the fluid material output from the discharge port to the straight pipe 300. One arc pipe 310 is connected to one discharge port. It can be understood that the two arc pipes 310 can output fluid material from one second material port 320. Thus, it is convenient to uniformly collect the fluid material output from the two discharge ports.

[0067] In this embodiment, by using the feeding mechanism and the discharging mechanism in cooperation, the mud pump can achieve unidirectional feeding and unidirectional discharging. Thus, the effect of the mud pump for pumping fluid material is better.

[0068] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0069] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A piston type mud pump, characterized in that, it includes: A feeding mechanism, including a feeding channel (100), a piston (110) and a first power member (120). The feeding channel (100) extends vertically. The piston (110) is arranged in the feeding channel (100), and the piston (110) is slidably connected to the feeding channel (100). The first power member (120) is used to drive the piston (110) to move up and down. A first inner convex ring (130) is arranged at the bottom of the feeding channel (100), and an inner side of the first inner convex ring (130) forms a feeding port. A first sphere (140) is arranged in the feeding channel (100), and the first sphere (140) is located between the piston (110) and the first inner convex ring (130). The first sphere (140) can cooperate with the first inner convex ring (130) to close the feeding port; The feeding mechanism includes a cylinder barrel (180), and an interior of the cylinder barrel (180) forms a part of the feeding channel (100). The piston (110) is located in the cylinder barrel (180), and the piston (110) is slidably connected to the cylinder barrel (180); It further includes a first material pipe (200). The first material pipe (200) includes a vertical pipe portion (210) and a side pipe portion (220) communicating with a side wall of the vertical pipe portion (210). An interior of the vertical pipe portion (210) is used to form the feeding channel (100), and an interior of the side pipe portion (220) is used to form a discharging channel (150); It further includes a second material pipe (250). The second material pipe (250) is located at the bottom of the feeding channel (100). The second material pipe (250) is used to guide a fluid material to the feeding port, and the second material pipe (250) is provided with the first inner convex ring (130); The first inner convex ring (130) is located at the top of the second material pipe (250); The second material pipe (250) includes a main pipe (260) and a plurality of sub-pipes (270) communicating with the main pipe (260). The main pipe (260) has a first material port (280), and the first material port (280) is used to input a fluid material. The sub-pipes (270) are used to flow the fluid material to the feeding mechanism. One sub-pipe (270) is connected to one feeding mechanism, and a plurality of the feeding mechanisms can extract the fluid material from one first material port (280). Thus, by using different numbers of the feeding mechanisms, the pumping pressure can be adjusted; The discharging mechanism includes a discharging channel (150) and a second sphere (160). The discharging channel (150) has a communication port that communicates with the side wall of the feeding channel (100). The communication port is located below the piston (110). A second inner convex ring (170) is arranged in the discharging channel (150). The inner side of the second inner convex ring (170) forms a discharging port. The second sphere (160) is located on the side of the second inner convex ring (170) away from the communication port. The second sphere (160) is located on the top of the second inner convex ring (170). The second sphere (160) can cooperate with the second inner convex ring (170) to close the discharging port.

2. A piston type mud pump according to claim 1, wherein, a first convex ring (190) is arranged at the bottom end of the cylinder barrel (180), and the first convex ring (190) is used for installing and fixing the cylinder barrel (180).

3. A piston type mud pump according to claim 1, wherein, the side pipe part (220) includes a bent section (230) and a vertical section (240) connected in sequence. The bent section (230) communicates with the vertical pipe part (210). The second inner convex ring (170) is arranged on the vertical section (240).

4. A piston type mud pump according to claim 3, wherein, the second inner convex ring (170) is located at the top of the vertical section (240).

5. A piston type mud pump according to claim 1, wherein, it further includes a third material pipe (290). The third material pipe (290) is used to form the discharging channel (150). The third material pipe (290) includes a straight pipe (300) and two arc pipes (310) communicating with the straight pipe (300). The straight pipe (300) has a second material port (320). The second material port (320) is used for outputting fluid materials. The arc pipes (310) are used to direct the fluid materials in the feeding mechanism to the straight pipe (300). One arc pipe (310) is connected to one discharging port.

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