Convenient pressing type pressing pump for pressing device

Abstract

The utility model relates to the field of pressing pumps, in particular to a convenient pressing type pressing pump for a pressing device. The technical problem to be solved by the utility model is to provide the convenient pressing type pressing pump for the pressing device, which is simple in structure, strong in sealing performance and capable of preventing a pumping medium from leaking and ensuring the pumping stability of the medium. A pressing pump convenient to press for a pressing device comprises a pump body, a fixing block, a piston block, a pressing rod, a sealing ring, a pressing block, a spring, a first steel ball, an upper connecting pipe, a second steel ball, a check block and a lower connecting pipe. The utility model achieves the effects of simple structure, strong sealing performance, prevention of the leakage of the pumping medium and guarantee of the pumping stability of the medium.

Description

Technical Field

[0001] The utility model relates to the field of pressing pumps, in particular to a convenient-pressure pressing pump for a presser. Background Art

[0002] A presser generally refers to a component designed to perform a specific function through a pressing action. A pressing pump is a specific form of a presser, which uses a pressing action to pump liquid or gas. Pressing pumps are widely used in various occasions. For example, a kitchen presser, especially those installed beside or near a kitchen sink for convenient access to dishwashing liquid, hand sanitizer, etc. The existing pressing pumps have a complex structure and poor sealing stability, and are prone to liquid leakage and other situations after long-term use, resulting in unstable liquid pumping. Therefore, it is urgent to develop a convenient-pressure pressing pump for a presser with a simple structure, strong sealing performance, capable of preventing leakage of the pumped medium, and ensuring the stability of medium pumping. Content of the Utility Model

[0003] In order to overcome the disadvantages of the existing pressing pump, such as its complex structure, poor sealing stability, and easy liquid leakage after long-term use, resulting in unstable liquid pumping, the technical problem to be solved by the utility model is to provide a convenient-pressure pressing pump for a presser with a simple structure, strong sealing performance, capable of preventing leakage of the pumped medium, and ensuring the stability of medium pumping.

[0004] The utility model is achieved by the following specific technical means:

[0005] A convenient pressing pump for a presser, comprising a cylindrical pump body; a cavity is arranged in the center of the pump body, and a liquid inlet pipe is fixedly connected to the lower end, and a liquid inlet hole is arranged in the center of the liquid inlet pipe; an opening is also arranged at the upper end of the pump body, and an annular clamping groove is arranged at the opening; a fixing block is arranged at the opening at the upper end of the pump body, and a protruding annular clamping ring is arranged on the outer diameter surface of the fixing block. The fixing block is clamped with the annular clamping groove arranged at the opening at the upper end of the pump body through the protruding annular clamping ring; a piston block is slidably arranged in the cavity arranged in the pump body, and an installation cavity is arranged in the center of the piston block; a pressing rod fixedly connected to the upper end of the piston block extends to the outside of the pump body through the fixing block, and a liquid through hole communicating with the installation cavity arranged in the center of the piston block is arranged in the center of the pressing rod; an installation groove is arranged on the outer diameter surface of the piston block that slidably cooperates with the cavity arranged in the pump body, and a sealing ring is arranged in the installation groove; a pressing block is arranged at the lower end of the cavity arranged in the pump body; the pressing block comprises a pressing piece and a connecting column fixedly connected to the upper end of the pressing piece; a movable cavity aligned with the liquid inlet hole in the center of the liquid inlet pipe is arranged at the lower end of the pressing block; a liquid through groove communicating with the cavity arranged in the external pump body is arranged on the inner side surface of the movable cavity; a resisting block protrudes downward on the top surface at the upper end of the movable cavity; a spring is arranged between the piston block and the pressing block, the upper end of the spring is arranged in the installation cavity arranged in the piston block, and the lower end of the spring is sleeved on the outer side surface of the connecting column arranged in the pressing block; a first steel ball is arranged in the movable cavity arranged in the pressing block; an upper connecting pipe fixedly connected to the upper end of the pressing rod, and a through hole communicating with the liquid through hole arranged in the pressing rod is arranged in the center of the upper connecting pipe; a conical liquid through section is arranged obliquely inward at the lower end of the upper connecting pipe; a second steel ball is arranged in the through hole arranged in the upper connecting pipe; a blocking block is arranged at the upper end of the through hole arranged in the upper connecting pipe; a lower connecting pipe is fixedly arranged at the lower end of the liquid inlet pipe arranged in the pump body, and a through hole communicating with the liquid inlet hole arranged in the liquid inlet pipe is arranged in the center of the lower connecting pipe.

[0006] Further, the diameter of the liquid inlet hole arranged in the liquid inlet pipe is smaller than the diameter of the first steel ball, and an inverted arc is arranged at the corner on the side of the liquid inlet hole arranged in the liquid inlet pipe close to the first steel ball; this prevents the first steel ball from coming out of the liquid inlet hole arranged in the liquid inlet pipe, and at the same time, an inverted arc is arranged at the corner, which is convenient for the first steel ball to block the liquid inlet hole.

[0007] Further, two protruding annular clamping rings are arranged on the outer diameter surface of the fixing block, and two annular clamping grooves are also arranged at the opening at the upper end of the pump body correspondingly; the clamping rings and the clamping grooves are correspondingly clamped to ensure the connection stability between the fixing block and the opening at the upper end of the pump body.

[0008] Further, two sealing rings are arranged, and two installation grooves are also arranged on the outer diameter surface of the piston block correspondingly; this ensures the sealing performance at the sliding fit between the piston block and the cavity, and prevents liquid from leaking at the sliding fit between the piston block and the cavity.

[0009] Furthermore, the diameter of the lower end of the tapered liquid passage section provided on the upper connecting pipe is smaller than the diameter of the second steel ball; this prevents the second steel ball from falling out of the lower end of the upper connecting pipe, and the inclined tapered liquid passage section facilitates the entry of the second steel ball to block the central hole of the liquid passage section.

[0010] Furthermore, a number of limiting protrusions are evenly arranged at equal intervals on the inner diameter surface of the through hole at the upper end of the upper connecting pipe; these play a role in limiting the block to prevent the block from rotating within the through hole at the upper end of the connecting pipe.

[0011] Furthermore, the lower end of the block is inclined inwardly with a taper; this facilitates the installation of the block into the through hole at the upper end of the upper connecting pipe.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] The present utility model achieves the effects of simple structure, strong sealing performance, preventing leakage of the pumped medium, and ensuring the stability of medium pumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0015] Figure 2 is a sectional structural schematic diagram of the present utility model.

[0016] Figure 3 is a partial three-dimensional structural schematic diagram of the present utility model.

[0017] Figure 4 is a three-dimensional structural schematic diagram of the upper connecting pipe of the present utility model.

[0018] Figure 5 is a three-dimensional structural schematic diagram of the block of the present utility model.

[0019] The reference signs in the drawings are: 1 - pump body, 101 - cavity, 102 - liquid inlet pipe, 2 - fixing block, 21 - retaining ring, 3 - piston block, 31 - installation cavity, 4 - pressing rod, 41 - liquid passage hole, 5 - sealing ring, 6 - pressing block, 61 - pressing piece, 62 - connecting column, 63 - moving cavity, 64 - abutting block. 7 - spring, 8 - first steel ball, 9 - upper connecting pipe, 901 - liquid passage section, 902 - limiting protrusion, 10 - second steel ball, 11 - block, 12 - lower connecting pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following further describes the present utility model with reference to the drawings: Embodiment

[0021] A convenient pressure pressing pump for a presser, as Figures 1-5As shown, it comprises a cylindrical pump body 1; a cavity 101 is arranged at the center of the pump body 1, and a liquid inlet pipe 102 is fixedly connected at the lower end, and a liquid inlet hole is arranged at the center of the liquid inlet pipe 102; an opening is also arranged at the upper end of the pump body 1, and an annular groove is arranged at the opening; a fixing block 2 is arranged at the opening at the upper end of the pump body 1, and a protruding annular collar 21 is arranged on the outer diameter surface of the fixing block 2, and the fixing block 2 is engaged with the annular groove arranged at the upper end opening of the pump body 1 through the protruding annular collar 21; a piston block 3 is slidably arranged in the cavity 101 of the pump body 1, and the piston The center of the block 3 is provided with a mounting cavity 31 body 101; the upper end of the piston block 3 is fixedly connected with a pressing rod 4 that passes through the fixing block 2 and extends to the outside of the pump body 1, and the center of the pressing rod 4 is provided with a liquid through hole 41 that passes through the pressing rod 4 and communicates with the mounting cavity 31 body 101 set in the center of the piston block 3; the outer diameter surface of the piston block 3 and the cavity 101 set in the pump body 1 is provided with a mounting groove, and a sealing ring 5 is provided in the mounting groove; the lower end of the cavity 101 set in the pump body 1 is provided with a pressing block 6; the pressing block 6 includes a pressing plate 61 and a sealing ring 5 fixedly connected to the pressing plate 6 1; the lower end of the pressure block 6 is provided with an active cavity 63 aligned with the central liquid inlet hole of the liquid inlet pipe 102; the inner surface of the active cavity 63 is provided with a liquid-passing groove that penetrates the active cavity 63 and communicates with the cavity 101 provided in the external pump body 1; a stopper 64 is provided on the top surface of the upper end of the active cavity 63 protruding downward; a spring 7 is provided between the piston block 3 and the pressure block 6, the upper end of the spring 7 is provided in the mounting cavity 31 provided in the piston block 3, and the lower end of the spring 7 is sleeved on the outer surface of the connecting column 62 provided in the pressure block 6; the active cavity 63 provided in the pressure block 6 is provided with a liquid-passing groove that penetrates the active cavity 63 and communicates with the cavity 101 provided in the external pump body 1; A first steel ball 8 is provided; an upper connecting tube 9 is fixedly connected to the upper end of the pressing rod 4, and a through hole connected to the liquid through hole 41 provided on the pressing rod 4 is provided in the center of the upper connecting tube 9; a conical liquid through section 901 is provided at an inward inclination at the lower end of the upper connecting tube 9; a second steel ball 10 is provided in the through hole provided in the upper connecting tube 9; a block 11 is provided at the upper end of the through hole provided in the upper connecting tube 9; a lower connecting tube 12 is fixedly provided at the lower end of the liquid inlet tube 102 provided in the pump body 1, and a through hole connected to the liquid inlet hole provided in the liquid inlet tube 102 is provided in the center of the lower connecting tube 12.

[0022] Working principle:

[0023] The pressing pump of the utility model is fixedly installed in the pressing device, the upper connecting pipe 9 is connected to the pressing head of the pressing device, and a sealing ring 5 is provided at the connection between the upper connecting pipe 9 and the pressing head to prevent liquid from leaking from the connection between the upper connecting pipe 9 and the pressing head; the lower connecting pipe 12 extends into the pumped liquid through an extension pipe.

[0024] When used for the first time, the pressing head connected to the upper connecting tube 9 is pressed to move the pressing rod 4 downward, and the pressing rod 4 drives the piston block 3 in the cavity 101 provided in the pump body 1 to move downward. When the piston block 3 moves downward, the space of the cavity 101 at the lower end of the piston block 3 is reduced, and the pressure in the cavity 101 increases; the first steel ball 8 blocks the near-liquid hole of the liquid inlet pipe 102 at the lower end of the pump body 1, so that the gas in the cavity 101 cannot be discharged from the liquid inlet pipe 102, so that the gas in the cavity 101 pushes the second steel ball 10 in the upper connecting tube 9, so that the gas in the cavity 101 is discharged from the upper connecting tube 9 and then discharged through the pressing head connected to the upper connecting tube 9; then the pressing head is released, so that the piston block 3 moves upward under the action of the spring 7, and the piston block 3 drives the pressing rod 4 upward Movement recovery; when the piston block 3 moves upward under the elastic force of the spring 7, the space of the cavity 101 at the lower end of the piston block 3 becomes larger, so that negative pressure is formed in the cavity 101, thereby generating suction, and the second steel ball 10 blocks the through hole of the liquid passage section 901 at the lower end of the upper connecting tube 9, so that the gas cannot enter the cavity 101 from the upper connecting tube 9, and the first steel ball can bounce upward under the action of negative pressure suction, so that the central liquid inlet hole of the liquid inlet tube 102 is opened, and the external liquid is sucked into the cavity 101 provided in the pump body 1 through the lower connecting tube 12; repeat the pressing action again, the liquid in the cavity 101 can be discharged into the pressing head through the upper connecting tube 9, and then discharged from the pressing head. After releasing, new liquid can be sucked into the cavity 101 provided in the pump body 1 by the lower connecting tube 12 again.

[0025] The diameter of the liquid inlet hole of the liquid inlet pipe 102 is smaller than the diameter of the first steel ball 8, and a chamfered arc is provided at the corner of the liquid inlet hole of the liquid inlet pipe 102 close to the first steel ball 8; to prevent the first steel ball 8 from escaping from the liquid inlet hole of the liquid inlet pipe 102, and at the same time, a chamfered arc is provided at the corner to facilitate the first steel ball 8 to block the liquid inlet hole; there are two protruding annular clamping rings 21 provided on the outer diameter surface of the fixed block 2, and there are also two corresponding annular clamping grooves at the upper end opening of the pump body 1; the clamping ring 21 is correspondingly engaged with the clamping groove to ensure the stability of the connection between the fixed block 2 and the upper end opening of the pump body 1; there are two sealing rings 5, and there are also two corresponding mounting grooves on the outer diameter surface of the piston block 3; to ensure the sealing of the sliding fit between the piston block 3 and the cavity 101, and prevent liquid from leaking from the sliding fit between the piston block 3 and the cavity 101.

[0026] Although the present disclosure has been described in detail with reference to the exemplary embodiments, the present disclosure is not limited thereto, and it will be apparent to those skilled in the art that various modifications and changes may be made thereto without departing from the scope of the present disclosure.

Claims

1. A pressure-type pressing pump for a pressing device, characterized in that: The invention comprises a cylindrical pump body (1); a cavity (101) is arranged at the center of the pump body (1); a liquid inlet pipe (102) is fixedly connected to the lower end of the pump body (1); a liquid inlet hole is arranged at the center of the liquid inlet pipe (102); an opening is also arranged at the upper end of the pump body (1); an annular clamping groove is arranged at the opening; a fixing block (2) is arranged at the opening at the upper end of the pump body (1); a protruding annular clamping ring (21) is arranged on the outer diameter surface of the fixing block (2); the fixing block (2) is clamped with the annular clamping groove arranged at the upper end of the opening of the pump body (1) through the protruding annular clamping ring (21); a piston block (3) is slidably arranged in the cavity (101) of the pump body (1); a piston block (3) is arranged at the center of the piston block (3) A mounting cavity (31) body (101) is provided; a pressing rod (4) is fixedly connected to the upper end of the piston block (3) and passes through the fixing block (2) and extends to the outside of the pump body (1); a liquid through hole (41) is provided at the center of the pressing rod (4) and passes through the pressing rod (4) and communicates with the mounting cavity (31) body (101) provided at the center of the piston block (3); a mounting groove is provided on the outer diameter surface of the piston block (3) and the cavity (101) provided in the pump body (1) is slidably matched, and a sealing ring (5) is provided in the mounting groove; a pressing block (6) is provided at the lower end of the cavity (101) provided in the pump body (1); the pressing block (6) includes a pressing plate (61) and a sealing ring (5) fixedly connected to the pressing plate (61) ) at the upper end of the pressure block (6); a movable cavity (63) aligned with the central liquid inlet hole of the liquid inlet pipe (102) is provided at the lower end of the pressure block (6); a liquid passage groove penetrating the movable cavity (63) and communicating with the cavity (101) provided in the external pump body (1) is provided on the inner surface of the movable cavity (63); a stop block (64) is provided on the upper end top surface of the movable cavity (63) protruding downward; a spring (7) is provided between the piston block (3) and the pressure block (6), the upper end of the spring (7) being provided in the mounting cavity (31) provided in the piston block (3), and the lower end of the spring (7) being sleeved on the outer surface of the connecting column (62) provided in the pressure block (6); the movable cavity (63) provided in the pressure block (6) 63) is provided with a first steel ball (8); an upper connecting tube (9) is fixedly connected to the upper end of the pressing rod (4), and a through hole is provided at the center of the upper connecting tube (9) and is connected to the liquid through hole (41) provided on the pressing rod (4); a conical liquid through section (901) is provided at the lower end of the upper connecting tube (9) inclined inwardly; a second steel ball (10) is provided in the through hole provided in the upper connecting tube (9); a stopper (11) is provided at the upper end of the through hole provided in the upper connecting tube (9); a lower connecting tube (12) is fixedly provided at the lower end of the liquid inlet tube (102) provided on the pump body (1), and a through hole is provided at the center of the lower connecting tube (12) and is connected to the liquid inlet hole provided in the liquid inlet tube (102).

2. A pressure-type pressing pump for a pressing device according to claim 1, characterized in that: The diameter of the liquid inlet hole provided in the liquid inlet pipe (102) is smaller than the diameter of the first steel ball (8), and a chamfered arc is provided at a corner of one side of the liquid inlet hole provided in the liquid inlet pipe (102) close to the first steel ball (8).

3. A pressure-type pressing pump for a pressing device according to claim 1, characterized in that Two protruding annular clamping rings (21) are provided on the outer diameter surface of the fixing block (2), and two corresponding annular clamping grooves are also provided at the upper end opening of the pump body (1).

4. A pressure-type pressing pump for a pressing device according to claim 1, characterized in that: Two sealing rings (5) are provided, and two corresponding mounting grooves are also provided on the outer diameter surface of the piston block (3).

5. The portable pressure pump for a pressurizer according to claim 1, characterized in that: The diameter of the lower end of the tapered liquid passage section (901) provided on the upper connecting pipe (9) is smaller than the diameter of the second steel ball (10).

6. A pressure-type pressing pump for a pressing device according to claim 1, characterized in that: A plurality of limiting protrusions (902) are evenly and equidistantly arranged on the inner diameter surface of the through hole at the upper end of the upper connecting tube (9).

7. A pressure-sensitive pressing pump for a pressing device according to claim 1, characterized in that: The lower end of the stopper (11) is inclined inwardly and has a taper.

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