Piston pump

Abstract

The utility model discloses a piston pump which is provided with a first direction, a second direction and a third direction which are mutually orthogonal, the piston pump comprises a bottom cover, a piston rod, a piston rod and a piston rod, the side cover is provided with an insertion block, and the insertion block is in insertion fit with the insertion groove; the number of the inserting blocks and the number of the inserting grooves are both multiple, the at least two inserting blocks are arranged at the two ends of the bottom cover in the third direction, and the inserting blocks and the inserting grooves are arranged in a one-to-one correspondence mode; the clamping assembly comprises a first clamping structure and a second clamping structure, the first clamping structure and the second clamping structure are arranged on the bottom cover and the side cover respectively, and the first clamping structure and the second clamping structure are used for limiting the side cover so that the side cover can be prevented from sliding in the first direction relative to the bottom cover. Compared with the mode that the side cover and the bottom cover are fixed through screws in the prior art, the piston pump is easier to assemble, the assembling efficiency is higher, and the production efficiency of a factory can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pumps, in particular to a piston pump. Background Art

[0002] The piston pump generally includes an upper cover, a valve plate, a side cover, a bottom cover, a motor and other components. The eccentric cam and other components are placed in the installation cavity surrounded by the bottom cover and the side cover, and the side cover and the bottom cover protect the eccentric cam and other components. The side cover and the bottom cover of the piston pump in the prior art are generally connected by screws to fix the side cover and the bottom cover. The fixing of the side cover and the bottom cover of the existing piston pump is relatively troublesome, and the installation efficiency is low. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to provide a piston pump to solve one or more technical problems existing in the prior art, and at least to provide a beneficial choice or create conditions.

[0004] The solution of the utility model to solve the technical problem is:

[0005] A piston pump is provided with a first direction, a second direction and a third direction which are orthogonal to each other, and the piston pump comprises:

[0006] A bottom cover, wherein the bottom cover is provided with an insertion slot, and a notch of the insertion slot faces a first direction;

[0007] A side cover, wherein the side cover is provided with an insertion block, and the insertion block is plugged and matched with the insertion slot; the number of the insertion block and the insertion slot is set to be multiple, at least two of the insertion blocks are respectively located at two ends of the bottom cover in the third direction, and the insertion blocks and the insertion slots are arranged one by one;

[0008] The locking assembly includes a first locking structure and a second locking structure, wherein the first locking structure and the second locking structure are respectively arranged on the bottom cover and the side cover, and the first locking structure and the second locking structure are used to limit the side cover to prevent the side cover from sliding relative to the bottom cover along a first direction.

[0009] Through the above technical solution, by setting structures such as the locking assembly, the insertion block and the insertion groove, the side cover can be quickly fixed. Compared with the method of fixing the side cover and the bottom cover by screws in the prior art, the assembly of the piston pump is simpler and the assembly efficiency is higher, which can greatly improve the production efficiency of the factory.

[0010] As a further improvement of the above technical solution, a guide structure is further provided between the bottom cover and the side cover, the number of the guide structures is set to two, and the two guide structures are evenly arranged on both sides of the piston pump in the second direction; the guide structure includes a guide protrusion and a guide side wall, the guide protrusion extends along the first direction, the guide protrusion and the guide side wall are respectively arranged on the bottom cover and the side cover, and the guide protrusion abuts against the guide side wall.

[0011] Through the above technical solution, by providing the guide side wall and the guide protrusion, the installation direction of the side cover can be guided, so that the side cover slides along the first direction, so that the insertion block can be inserted into the insertion groove more easily.

[0012] As a further improvement of the above technical solution, an end of the insertion block away from the side cover is provided with a chamfer.

[0013] With the above technical solution, by setting the chamfer, the insertion block can be inserted into the insertion groove more easily.

[0014] As a further improvement of the above technical solution, it also includes:

[0015] An upper cover, wherein the upper cover is provided with a liquid inlet interface and a liquid outlet interface;

[0016] A valve plate, the valve plate being arranged between the upper cover and the bottom cover;

[0017] A first fixing screw, the head of which is tightly pressed against the upper cover, the first fixing screw passes through the upper cover and the valve plate, and the first fixing screw is threadedly connected to the bottom cover.

[0018] As a further improvement of the above technical solution, the number of the first fixing screws is set to four, and the four first fixing screws are respectively arranged at the four corners of the upper cover.

[0019] As a further improvement of the above technical solution, the liquid inlet interface and the liquid outlet interface are respectively arranged on two end surfaces of the upper cover, and the liquid inlet interface and the liquid outlet interface are perpendicular to each other.

[0020] As a further improvement of the above technical solution, the liquid inlet interface and the liquid outlet interface are arranged on the same end surface of the upper cover, and the liquid inlet interface and the liquid outlet interface are parallel to each other.

[0021] As a further improvement of the above technical solution, the upper cover is provided with a flow direction mark, and the flow direction mark is used to indicate the liquid inlet direction and the liquid outlet direction.

[0022] Through the above technical solution, the flow direction mark is used to indicate the flow direction of the liquid of the piston pump, thereby helping the user to correctly install the piston pump.

[0023] As a further improvement of the above technical solution, it also includes a motor, and the motor is fixedly connected to the bottom cover.

[0024] As a further improvement of the above technical solution, the motor and the bottom cover are fixed by a second fixing screw.

[0025] The beneficial effects of the utility model are: the assembly efficiency is higher, and the production efficiency of the factory can be greatly improved.

[0026] The utility model is used in the technical field of pumps. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following is a brief description of the drawings required for the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present utility model, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the explosion structure of an embodiment of the utility model;

[0029] Figure 2 It is a schematic diagram of the exploded structure of the bottom cover and the side cover of the embodiment of the utility model.

[0030] In the figure, 100, side cover; 111, first insertion block; 112, second insertion block; 200, motor; 300, valve plate; 400, bottom cover; 410, insertion groove; 500, upper cover; 510, liquid outlet interface; 520, liquid inlet interface; 530, flow direction indicator; 600, first fixing screw; 700, second fixing screw; 810, first clamping structure; 820, second clamping structure; 900, guide structure; 910, guide side wall; 920, guide protrusion; 1010, eccentric wheel; 1020, connecting rod; 1030, leather cup; 1040, sealing gasket; 1050, umbrella tack. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] Reference Figure 1 and Figure 2 , a piston pump is provided with a third direction, a second direction and a first direction which are orthogonal to each other.

[0035] The piston pump includes: a side cover 100 , a motor 200 , a valve plate 300 , a bottom cover 400 , an upper cover 500 , a first fixing screw 600 and a second fixing screw 700 .

[0036] The side cover 100 and the bottom cover 400 can be slidably connected along the first direction. The side cover 100 is provided with an insertion block. Specifically, in this embodiment, the number of the insertion blocks is set to three, wherein two insertion blocks are set to be first insertion blocks 111, and the other insertion block is set to be a second insertion block 112. The first insertion block 111 is a cylindrical structure, and the second insertion block 112 is a trapezoidal block structure. In other embodiments, the number of the insertion blocks can also be set to four, five, etc., and those skilled in the art can select the number of the insertion blocks according to actual needs.

[0037] The first inserting block 111 and the second inserting block 112 are respectively disposed at both ends of the side cover 100 in the third direction.

[0038] One end of the insert block away from the side cover 100 is provided with a chamfer. Specifically, the chamfers of the second insert block 112 are two side surfaces of a trapezoid.

[0039] The bottom cover 400 is provided with an insertion slot 410, and the insertion slot 410 is arranged one-to-one with the insertion block, and the shape of the insertion slot 410 matches the shape of the insertion block. The insertion block is inserted into the insertion slot 410 along a first direction.

[0040] The first insert block 111 and the second insert block 112 are respectively disposed at two ends of the side cover 100 in the third direction, so that the two ends of the side cover 100 in the third direction can be plug-connected with the bottom cover 400 .

[0041] By providing the chamfer, the insert block can be inserted into the insert groove 410 more easily.

[0042] Specifically, in the present embodiment, a latch assembly is further provided between the bottom cover 400 and the side cover 100. The latch assembly includes a second latch structure 820 and a first latch structure 810, and the second latch structure 820 and the first latch structure 810 are respectively provided on the side cover 100 and the bottom cover 400. Specifically, in the present embodiment, the first latch structure 810 is provided on the bottom cover 400, and the second latch structure 820 is provided on the side cover 100. Specifically, in the present embodiment, the second latch structure 820 and the first latch structure 810 are both provided as semi-cylindrical protrusion structures. In other embodiments, the second latch structure 820 and the first latch structure 810 may also be provided as a combination of a hemispherical protrusion and a semi-cylindrical protrusion. Those skilled in the art may select the specific structures of the second latch structure 820 and the first latch structure 810 according to actual needs.

[0043] The side cover 100 can be limited by the locking assembly to prevent the side cover 100 from accidentally sliding relative to the bottom cover 400 along the first direction, thereby preventing the side cover 100 from accidentally falling off.

[0044] By setting structures such as the locking assembly, the insertion block and the insertion groove 410, the side cover 100 can be quickly fixed. Compared with the method of fixing the side cover 100 and the bottom cover 400 by screws in the prior art, the assembly of the piston pump is simpler and more efficient, which can greatly improve the factory's production efficiency.

[0045] Specifically, in this embodiment, a guide structure 900 is further provided between the side cover 100 and the bottom cover 400. Specifically, the guide structure 900 includes a guide side wall 910 and a guide protrusion 920, and the guide side wall 910 and the guide protrusion 920 are respectively provided on the side cover 100 and the bottom cover 400. Specifically, in this embodiment, the guide side wall 910 is provided on the bottom cover 400, and the guide protrusion 920 is fixedly provided on the side cover 100. In other embodiments, the guide side wall 910 may also be provided on the side cover 100, and the guide protrusion 920 may be provided on the bottom cover 400, and those skilled in the art may select the setting positions of the guide side wall 910 and the guide protrusion 920.

[0046] Specifically, in this embodiment, the number of guide structures 900 is set to two, and the two guide structures 900 are respectively arranged on both sides of the piston pump in the second direction. In other embodiments, the number of guide side walls 910 can also be set to two, and the two end surfaces of the guide protrusion 920 in the second direction are respectively in contact with the two guide side walls 910, so as to achieve the guidance of the side cover 100. Those skilled in the art can choose to use two guide structures 900 or two guide side walls 910 according to actual needs.

[0047] The guide side wall 910 abuts against the guide protrusion 920, and the guide protrusion 920 extends along the first direction. By setting the guide side wall 910 and the guide protrusion 920, the installation direction of the side cover 100 can be guided, so that the side cover 100 slides along the first direction, so that the insertion block and can be more easily inserted into the insertion groove 410.

[0048] The bottom cover 400 , the valve plate 300 , and the upper cover 500 are sequentially arranged along the first direction.

[0049] The upper cover 500 is provided with a liquid outlet interface 510 and a liquid inlet interface 520. Specifically, in this embodiment, the liquid outlet interface 510 and the liquid inlet interface 520 are respectively arranged on two adjacent side walls of the upper cover 500, and the liquid outlet interface 510 and the liquid inlet interface 520 are arranged perpendicular to each other.

[0050] In other embodiments, the liquid outlet interface 510 and the liquid inlet interface 520 may also be disposed on the same side wall or end of the upper cover 500, and the liquid outlet interface 510 and the liquid inlet interface 520 may be disposed parallel to each other. Those skilled in the art may select the location of the liquid outlet interface 510 and the liquid inlet interface 520.

[0051] Specifically, in this embodiment, the upper cover 500 is provided with a flow direction mark 530, which is an arrow-shaped mark. The flow direction mark 530 is used to indicate the flow direction of the liquid of the piston pump, thereby helping the user to correctly install the piston pump.

[0052] The head of the first fixing screw 600 abuts against the upper cover 500, the first fixing screw 600 passes through the upper cover 500 and the valve plate 300, and the tail of the first fixing screw 600 is threadedly connected with the bottom cover 400, so that the upper cover 500, the valve plate 300 and the bottom cover 400 are fixedly connected.

[0053] Specifically, in this embodiment, the number of the first fixing screws 600 is set to four, and the four first fixing screws 600 are respectively set at the four corners of the upper cover 500. The four first fixing screws 600 respectively fix the four corners of the upper cover 500 to ensure the stability of the connection between the upper cover 500, the valve plate 300, and the bottom cover 400.

[0054] The motor 200 and the bottom cover 400 are fixed by second fixing screws 700 .

[0055] Specifically, the piston pump also includes an eccentric wheel 1010, a connecting rod 1020, a leather cup 1030, a sealing gasket 1040, an umbrella 1050 and other structures.

[0056] The connecting rod 1020 includes a connecting structure and a hinge structure, and the connecting structure is hinge-connected to the hinge structure.

[0057] The eccentric wheel 1010 and the connecting rod 1020 are both disposed in the space formed by the side cover 100 and the bottom cover 400. The eccentric wheel 1010 is provided with a central connecting portion and an eccentric connecting portion, the central connecting portion is fixedly connected to the output shaft of the motor 200, and the connecting structure is rotatably connected to the eccentric connecting portion.

[0058] The leather cup 1030 is fixedly connected to one end of the hinge structure away from the connection structure. The leather cup 1030 is disposed in the bottom cover 400, and the leather cup 1030 is slidably connected to the bottom cover 400. The leather cup 1030 can be slidably connected relative to the bottom cover 400 along a first direction.

[0059] The valve plate 300 is provided with an inflow channel and an outflow channel. The number of the umbrella pins 1050 is set to two. The two umbrella pins 1050 are respectively provided in the inflow channel and the outflow channel. The umbrella pins 1050 are slidably connected to the valve plate 300.

[0060] The sealing gasket 1040 is fixedly disposed on the valve plate 300 .

[0061] When the motor 200 rotates, the eccentric wheel 1010 rotates. Since the connecting structure is rotatably connected to the eccentric connecting portion of the eccentric wheel 1010, the eccentric wheel 1010 will drive the connecting mechanism to move eccentrically. At the same time, since the leather cup 1030 is slidingly connected to the bottom cover 400 along the first direction and the hinged structure is hinged to the connecting structure, when the eccentric wheel 1010 rotates, it will drive the leather cup 1030 to move back and forth relative to the bottom cover 400 along the first direction. In conjunction with the two umbrellas 1050, the medium can be sucked back and forth, thereby completing the work of pumping out the medium.

[0062] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. Piston pump, characterized in that: There are provided a first direction, a second direction and a third direction which are orthogonal to each other, and the piston pump comprises: A bottom cover, wherein the bottom cover is provided with an insertion slot, and a notch of the insertion slot faces a first direction; A side cover, wherein the side cover is provided with an insertion block, and the insertion block is plugged and matched with the insertion slot; the number of the insertion block and the insertion slot is set to be multiple, at least two of the insertion blocks are respectively located at two ends of the bottom cover in the third direction, and the insertion blocks and the insertion slots are arranged one by one; The locking assembly includes a first locking structure and a second locking structure, wherein the first locking structure and the second locking structure are respectively arranged on the bottom cover and the side cover, and the first locking structure and the second locking structure are used to limit the side cover to prevent the side cover from sliding relative to the bottom cover along a first direction.

2. The piston pump according to claim 1, characterized in that: A guide structure is also provided between the bottom cover and the side cover, and the number of the guide structures is set to two, and the two guide structures are evenly arranged on both sides of the piston pump in the second direction; the guide structure includes a guide protrusion and a guide side wall, the guide protrusion extends along the first direction, the guide protrusion and the guide side wall are respectively provided on the bottom cover and the side cover, and the guide protrusion abuts against the guide side wall.

3. The piston pump according to claim 1, characterized in that: One end of the insert block away from the side cover is provided with a chamfer.

4. The piston pump according to claim 1, characterized in that: Also includes: An upper cover, wherein the upper cover is provided with a liquid inlet interface and a liquid outlet interface; A valve plate, the valve plate being arranged between the upper cover and the bottom cover; A first fixing screw, the head of which is tightly pressed against the upper cover, the first fixing screw passes through the upper cover and the valve plate, and the first fixing screw is threadedly connected to the bottom cover.

5. The piston pump according to claim 4, characterized in that: The number of the first fixing screws is set to four, and the four first fixing screws are respectively arranged at four corners of the upper cover.

6. The piston pump according to claim 4, characterized in that: The liquid inlet interface and the liquid outlet interface are respectively arranged on two end surfaces of the upper cover, and the liquid inlet interface and the liquid outlet interface are perpendicular to each other.

7. The piston pump according to claim 4, characterized in that: The liquid inlet interface and the liquid outlet interface are arranged on the same end surface of the upper cover, and the liquid inlet interface and the liquid outlet interface are parallel to each other.

8. The piston pump according to claim 4, characterized in that: The upper cover is provided with a flow direction mark, and the flow direction mark is used to indicate the liquid inlet direction and the liquid outlet direction.

9. The piston pump according to claim 1, characterized in that: It also includes a motor, which is fixedly connected to the bottom cover.

10. The piston pump according to claim 9, characterized in that: The motor and the bottom cover are fixed by a second fixing screw.

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