Novel liquid carrying prevention pressing pump

Abstract

The utility model discloses a novel anti-liquid-carrying pressing pump which comprises a pump body and a pressing head, the pump body comprises a pump chamber, the upper end of the pump body is provided with a ventilation hole, a connecting rod is fixed below the pressing head, a pumping device is arranged in the pump chamber, the upper end of the pump body is fixedly provided with a lock cover, and a brake is arranged between the lock cover and the connecting rod. An angle limiting structure capable of limiting the rotating angle of the brake is arranged between the brake and the lock cover, a lifting structure capable of enabling the brake to ascend or descend when the brake rotates is arranged between the brake and the lock cover, and a sealing part is arranged on the brake. The pressing head is pressed down and is in threaded connection with the brake through the connecting rod to be locked on the brake, the brake is in a falling state, the sealing part blocks the upper end of the pump chamber to cut off communication between the ventilation hole and the pump chamber, and the solution is prevented from flowing out of the ventilation hole when the bottle is extruded or toppled. When the pressing head rotates and unlocks, the brake is driven to rotate and ascends to enable the sealing part to loosen the upper end of the pump chamber, so that the ventilation hole is communicated with the pump chamber for normal use of the pressing pump.

Description

TECHNICAL FIELD

[0001] The utility model relates to a novel anti-liquid press pump. BACKGROUND

[0002] The existing press pump, the pump rod in the pump body is usually composed of upper pump rod and lower pump rod, and the piston is installed between the upper pump rod and the lower pump rod to make piston movement in the pump body, and the pump body is usually provided with a gas exchange hole to exchange the gas in the space above the piston when the piston moves up and down in the pump body, so as to avoid the formation of low or high pressure space above the piston. However, when the press pump is installed on the bottle for use, the bottle containing solution is easily squeezed or poured during transportation or storage, causing the solution to leak into the pump body from the gas exchange hole. Since the gas exchange hole is arranged above the piston, the solution is easily leaked to the outside of the press pump, or is easily taken out of the press pump during the use of the press pump with the upper and lower press nozzle.

[0003] The utility model is made based on this situation. CONTENT

[0004] The utility model overcomes the defects of the prior art and provides a novel anti-liquid press pump which has the characteristics of simple structure and prevention of liquid in the bottle from being taken out of the pump chamber from the gas exchange hole.

[0005] The utility model is realized through the following technical scheme:

[0006] A novel anti-liquid press pump, comprising a pump body and a press head, the pump body comprises a pump chamber, the upper end of the pump body is provided with a gas exchange hole which communicates the pump chamber with the outside of the pump body, the press head is fixed below with a hollow connecting rod, the pump chamber is provided with a pumping device which is connected with the connecting rod, the pump chamber is provided with a spring which is used for bouncing the pumping device upward, the upper end of the pump body is fixed with a lock cover, the lock cover and the connecting rod are provided with a brake which can rotate relative to the lock cover, the brake is sealingly connected with the lock cover, and the brake and the lock cover are provided with an angle limiting structure which can limit the rotation angle of the brake, the brake and the lock cover are provided with a lifting and landing structure which can make the brake rise or fall relative to the lock cover when the brake rotates relative to the lock cover, the brake is provided with a closing part which can block the upper end of the pump chamber and cut off the communication between the gas exchange hole and the pump chamber when the brake falls, in the locked state of the press pump, the press head is pressed down and locked on the brake through the threaded connection of the connecting rod and the brake, and the brake is in the falling state, when the press head is rotated to be unlocked, the brake is rotated and lifted to loosen the closing part from the upper end of the pump chamber, so that the gas exchange hole communicates with the pump chamber.

[0007] A new type of anti-liquid press pump, the lifting structure includes a chute arranged outside the brake, and a slide column arranged on the lock cover, the slide column is inserted in the chute, the chute cooperates with the slide column, the chute has a high position and a low position, when the brake rotates relative to the lock cover, the brake is lifted or lowered relative to the lock cover through the chute guiding the slide column.

[0008] A new type of anti-liquid press pump, the chute has two closed ends, the angle limiting structure is composed of the closed ends and the slide column, the slide column is limited to move between the two closed ends, thereby limiting the angle of rotation of the brake on the lock cover.

[0009] A new type of anti-liquid press pump, the pumping device includes a pump rod fixedly connected with the connecting rod, the pump rod is hollow and communicates with the connecting rod, the connecting rod is provided with a one-way valve for the liquid in the pump rod to flow to the connecting rod, the pump rod is provided with a piston, and the spring is located below the piston.

[0010] A new type of anti-liquid press pump, the piston is a plastic piston which is integrally formed with the pump rod.

[0011] A new type of anti-liquid press pump, the brake includes an outer ring and an inner ring extending downward from the top of the brake, the inner ring is provided with internal threads, the outer side of the connecting rod is provided with external threads matched with the internal threads, and the chute is arranged on the side surface of the outer ring.

[0012] A new type of anti-liquid press pump, the lower end of the inner ring is provided with a contraction opening in sealing connection with the outer side of the connecting rod in the locked state of the press pump, the piston is provided with an upward piston ring, and the piston ring can be inserted into the outer side of the inner ring and sealingly connected with the outer side of the inner ring when the press head is lifted.

[0013] A new type of anti-liquid press pump, the connecting rod is provided with a pressing portion above the external threads, and the pressing portion can press on the top of the brake from above.

[0014] A new type of anti-liquid press pump, the upper portion of the brake is provided with a sealing side portion in sealing connection with the inner wall of the lock cover, and the sealing side portion is in sealing connection with the inner wall of the lock cover when the brake is lifted and lowered relative to the lock cover.

[0015] A new type of anti-liquid press pump, the upper end of the pump body is provided with a flange extending outward, the bottom of the flange is provided with a downward sealing ring, and the lower end of the sealing ring is provided with a guide angle.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1. The utility model discloses a locking state of pressing pump, the press head is pressed down and is locked on the brake through the threaded connection of connecting rod and brake, and the brake is in the landing state, the closed part on the brake blocks the upper end of pump chamber and cuts off the communication of gas exchange hole and pump chamber, prevents the bottle from being collided and extruded or toppling over in the transportation process, and the solution in the bottle flows out from the gas exchange hole into the pump chamber and is taken out to the outside of the pressing pump, and when using, the press head rotates and drives the brake to rotate and make the brake rise, and the closed part releases the upper end of pump chamber, so that the gas exchange hole communicates with the pump chamber, so that the pump chamber and the outside are communicated when the press head is pressed up and down.

[0018] 2. The piston is a plastic piston, which is integrally formed with the pump rod, simple structure, less parts, avoiding the structure of upper pump rod, lower pump rod and connecting rubber piston.

[0019] 3. The lower end of the inner ring is provided with a contraction opening in sealing cooperation with the outer side of the connecting rod in the locking state of the pressing pump, preventing water from entering from the outside in the locking state, and the contraction opening is also tightened on the connecting rod, which is convenient for the connecting rod to rotate and drive the brake to rotate and rise; the piston is provided with an upward piston ring, which can be inserted into the outer side of the inner ring and sealingly connected with the outer side of the inner ring when the press head is popped up, preventing water from entering from the outside in the press head pop-up state.

[0020] 4. The sealing side of the brake is sealingly connected with the inner wall of the lock cover when the brake rises and falls relative to the lock cover, preventing the solution in the bottle from leaking out to the outside from the gas exchange hole and through the brake and the lock cover in the locking state or the unlocking state.

[0021] 5. The upper end of the pump body is integrally formed with a downward sealing ring and a corresponding guide angle through a flange, the sealing ring is inserted into the inner side of the bottle mouth of the bottle during bottle installation, and the sealing ring is tightly pressed on the side wall of the bottle mouth, the lock cover is locked and fixed on the outer side of the bottle mouth of the bottle, simple structure, convenient installation, avoiding the use of gasket sealing, saving parts.

DESCRIPTION OF DRAWINGS

[0022] The specific implementation of the utility model will be further described in combination with the drawings, wherein:

[0023] Figure 1 is the explosion view of the novel anti-liquid pressing pump of the utility model;

[0024] Figure 2 is the sectional view of the novel anti-liquid pressing pump of the utility model in the locking state;

[0025] Figure 3 is the sectional view of the novel anti-liquid pressing pump of the utility model in the pop-up state;

[0026] Figure 4 This is a schematic diagram of a novel anti-liquidation press pump installed on a bottle body according to this utility model.

Detailed Implementation Methods

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figures 1 to 3 The above describes a novel anti-liquidity press pump, such as... Figure 4 As shown, it is installed on a bottle body 100 and includes a pump body 1 and a pusher head 2. The pump body 1 includes a pump chamber 11. The upper end of the pump body 1 is provided with a vent 12 connecting the pump chamber 11 and the outside of the pump body 1. The vent 12 is used to supply or release air to the pump body 1 during use. A hollow connecting rod 3 is fixed below the pusher head 2. The pump chamber 11 is provided with a pumping device connected to the connecting rod 3. The pump chamber 11 is provided with a spring 4 for springing the pumping device upward. A locking cap 5 is fixed to the upper end of the pump body 1. A brake 6, capable of rotating relative to the lock cover 5, is provided between the lock cover 5 and the connecting rod 3. The brake 6 is sealed to the lock cover 5, and an angle limiting structure is provided between the brake 6 and the lock cover 5 to limit the rotation angle of the brake 6. A lifting and lowering structure is provided between the brake 6 and the lock cover 5 to allow the brake 6 to rise or fall relative to the lock cover 5 when it rotates. The brake 6 is provided with a sealing part 61 that blocks the upper end of the pump chamber 11 during descent, cutting off the communication between the ventilation hole 12 and the pump chamber 11. Figure 2 As shown, in the locked state of the press pump, the push head 2 is pressed down and locked to the brake 6 via a threaded connection with the connecting rod 3, and the brake 6 is in a lowered state. The sealing part 61 on the brake 6 blocks the upper end of the pump chamber 11, cutting off the connection between the vent hole 12 and the pump chamber 11, preventing the bottle from being collided, squeezed, or tipped over during transportation, causing the solution in the bottle to flow out of the vent hole 12 into the pump chamber 11 and be carried out to the outside of the press pump. When the push head 2 is rotated to unlock, it drives the brake 6 to rotate and raise the brake 6, causing the sealing part 61 to loosen the upper end of the pump chamber 11, thereby connecting the vent hole 12 with the pump chamber 11, so that the pump chamber 11 can be ventilated with the outside when the push head 2 is pressed up and down.

[0029] Preferably, the pumping device comprises a pump rod 7 fixedly connected with the connecting rod 3, the pump rod 7 is hollow and communicates with the connecting rod 3, the connecting rod 3 is provided with a one-way valve 8 for the liquid in the pump rod 7 to flow to the connecting rod 3, the pump rod 7 is provided with a piston 71, the pump chamber 11 is formed with a solution pumping cavity 1a below the piston 71, the spring 4 is located below the piston 71, the lower end of the pump body 1 is provided with a liquid guide pipe 9, the pump body 1 is provided with a pump bead 10 below the piston 71, which blocks the lower end inlet of the pump chamber 11 and allows the liquid in the bottle body to enter the pump chamber 11 when the piston 71 moves upward. In use, the head 2 is pressed down, the pump bead 10 blocks the lower end inlet of the pump chamber 11, the piston 71 moves downward to pump the solution in the solution pumping cavity 1a into the head 2 through the pump rod 7, the one-way valve 8 and the connecting rod 3, and then press out from the outlet of the head 2; under the action of the spring 4, when the piston 8, the pump rod 7, the connecting rod 3 and the head 2 are popped up together, the volume of the solution pumping cavity 1a increases to form negative pressure, the pump bead 10 loosens the lower end inlet of the pump chamber 11, and the solution in the bottle body 100 enters the solution pumping cavity 1a from the lower end inlet of the pump chamber 11.

[0030] Preferably, the piston 71 is a plastic piston which is integrally formed with the pump rod 7, simple structure and few parts.

[0031] Preferably, the lifting structure comprises a sliding groove 62 arranged outside the brake 6 and a sliding column 51 arranged on the lock cover 5, the sliding column 51 is inserted into the sliding groove 62, the sliding groove 62 cooperates with the sliding column 51, the sliding groove 62 has a high position 621 and a low position 622, when the brake 6 rotates relative to the lock cover 5, the sliding column 51 is guided by the sliding groove 62 to make the brake 6 rise or fall relative to the lock cover 5. Further, the sliding groove 62 has two closed ends 623, the angle limiting structure is composed of the closed ends 623 and the sliding column 51, the sliding column 51 is limited to move between the two closed ends 623 to limit the angle of rotation of the brake 6 on the lock cover 5. Through the cooperation of the sliding groove 62 and the sliding column 51, the angle of rotation and the lifting height of the brake 6 relative to the lock cover 5 can be conveniently controlled.

[0032] As Figure 2As shown, pressing down the pusher 2 causes the connecting rod 3 to rotate, making the connecting rod 3 threadedly connected to the brake 6 and locked onto the brake 6. After the connecting rod 3 is locked onto the brake 6, the pusher 2 continues to rotate, causing the brake 6 to rotate on the lock cover 5, so that the high position 621 on the slide groove 62 rotates to the position of the slide column 51. With the cooperation of the slide groove 62 and the slide column 51, the brake 6 descends, causing the sealing part 61 to block the upper end of the pump chamber 11, cutting off the connection between the ventilation hole 12 and the pump chamber 11. The sealing end 623 at one end of the high position 621 blocks the slide column 51, restricting the brake 6 and the connecting rod 3 from continuing to rotate. In the locked state, the spring is compressed. Under the action of the spring 4, the connecting rod 3 is threadedly connected to the brake 6, and at the same time, the connecting rod 6 is also threadedly connected to the brake 6. Pressing firmly upwards against the brake 6, during unlocking, the pusher 2 is rotated in the opposite direction, causing the connecting rod 3 to rotate along with the brake 6. This rotates the lower position 622 on the slide groove 62 of the lock cover 5 to the position of the slide column 51. With the cooperation of the slide groove 62 and the slide column 51, the brake 6 rises, causing the sealing part 61 to loosen. The upper end of the pump chamber 11 connects the vent 12 with the pump chamber 11, and the sealing end 623 at one end of the lower position 622 blocks the slide column 51, restricting the brake 6 from continuing to rotate. When the pusher 2 and the connecting rod 3 continue to rotate under the action of external force, the connecting rod 3 rotates relative to the brake 6, causing the two to disengage from the threaded connection. Under the action of the spring 4, the piston 8, pump rod 7, connecting rod 3, and pusher 2 are all lifted upwards together. Figure 3 As shown.

[0033] Preferably, the brake 6 includes an outer ring 63 and an inner ring 64 extending downward from its top. The inner ring 64 is provided with an internal thread 65, and the outer side of the connecting rod 3 is provided with an external thread 31 that is threadedly engaged with the internal thread 65. The groove 62 is provided on the side of the outer ring 63.

[0034] Preferably, such as Figure 2 As shown, the lower end of the inner ring 64 is provided with a contraction port 66 that seals with the outer side of the connecting rod 3 when the pump is in the locked state, preventing water from entering from the outside in the locked state. Simultaneously, the contraction port 66 tightens onto the connecting rod 3, facilitating the rotation of the connecting rod 3 to unlock and raise the brake 6. Figure 3 As shown, the piston 71 is provided with an upward-facing piston ring 72. When the push head 2 pops up, the piston ring 72 can be inserted into the outer side of the inner ring 64 and sealed to the outer side of the inner ring 64 to prevent water from entering from the outside when the push head 2 pops up.

[0035] Preferably, the connecting rod 3 is provided with a pressing part 32 above the external thread 31, which can press down on the top of the brake 6 from above. When the connecting rod 3 is threadedly connected to the brake 6, the pressing part 32 presses down on the brake 6 to lock the connecting rod 3 onto the brake 6, which is beneficial for the connecting rod 3 to drive the brake 6 to rotate and lower the brake 6.

[0036] Preferably, the upper part of the brake 6 is provided with a sealing side 67 that is sealed to the inner wall of the lock cover 5. The sealing side 67 is sealed to the inner wall of the lock cover 5 when the brake 6 is raised and lowered relative to the lock cover 5. In the locked or unlocked state, it prevents the bottle from being bumped, squeezed or tilted during transportation, which would cause the solution in the bottle to leak out from the vent 12 and between the brake 6 and the lock cover 5 to the outside.

[0037] Preferably, the pump body 1 has an outwardly extending flange 13 at its upper end, a downwardly facing sealing ring 14 at the bottom of the flange 13, and a guide angle 15 at the lower end of the sealing ring 14. Figure 4 As shown, the guide angle 15 facilitates the insertion of the sealing ring 14 into the inner side of the bottle mouth of the bottle body 100. The sealing ring 14 is sealed to the inner side of the bottle mouth of the bottle body 100. The locking cap 5 is locked and fixed on the outer side of the bottle mouth of the bottle body 100. The structure is simple, avoids the use of gaskets for sealing, and saves parts.

Claims

1. A new type of anti-liquid-belt press pump, comprising a pump body (1) and a press head (2), the pump body (1) comprising a pump chamber (11), the upper end of the pump body (1) being provided with a breathing hole (12) communicating the pump chamber (11) and the outside of the pump body (1), characterized in that: The press head (2) is fixed below a hollow connecting rod (3), a pumping device is arranged in the pump chamber (11) and connected with the connecting rod (3), a spring (4) is arranged in the pump chamber (11) and used for bouncing the pumping device upward, a lock cover (5) is fixed to the upper end of the pump body (1), a brake (6) capable of rotating relative to the lock cover (5) is arranged between the lock cover (5) and the connecting rod (3), the brake (6) is in sealing connection with the lock cover (5), an angle limiting structure capable of limiting the rotating angle of the brake (6) is arranged between the brake (6) and the lock cover (5), a lifting and landing structure capable of lifting or landing the brake (6) relative to the lock cover (5) when the brake (6) rotates relative to the lock cover (5) is arranged between the brake (6) and the lock cover (5), an enclosed part (61) is arranged on the brake (6) and used for blocking the upper end of the pump chamber (11) and cutting off the communication between the gas exchange hole (12) and the pump chamber (11) when the brake (6) lands, in the locked state of the press pump, the press head (2) is pressed down and locked on the brake (6) through the threaded connection between the connecting rod (3) and the brake (6), and the brake (6) is in the landing state, when the press head (2) is rotated to be unlocked, the brake (6) is rotated and lifted to make the enclosed part (61) loose the upper end of the pump chamber (11) so that the gas exchange hole (12) is communicated with the pump chamber (11).

2. A novel anti-liquid carrying press pump according to claim 1, characterized in that: The lifting and landing structure comprises a sliding groove (62) arranged outside the brake (6) and a sliding column (51) arranged on the lock cover (5), the sliding column (51) is inserted into the sliding groove (62), the sliding groove (62) is matched with the sliding column (51), the sliding groove (62) has a high position (621) and a low position (622), and when the brake (6) rotates relative to the lock cover (5), the sliding column (51) is guided by the sliding groove (62) to make the brake (6) lift or land relative to the lock cover (5).

3. A novel anti-liquid carrying press pump according to claim 2, characterized in that: The sliding groove (62) has two closed ends (623), the angle limiting structure is composed of the closed ends (623) and the sliding column (51), the sliding column (51) is limited to move between the two closed ends (623) so as to limit the rotating angle of the brake (6) on the lock cover (5).

4. A novel anti-liquid carrying press pump according to claim 2 or 3, characterized in that: The pumping device comprises a pump rod (7) fixedly connected with the connecting rod (3), the pump rod (7) is hollow and communicated with the connecting rod (3), a one-way valve (8) for guiding the liquid in the pump rod (7) to flow to the connecting rod (3) is arranged on the connecting rod (3), a piston (71) is arranged on the pump rod (7), and the spring (4) is located below the piston (71).

5. A novel anti-liquid carrying press pump according to claim 4, characterized in that: The piston (71) is a plastic piston which is integrally formed with the pump rod (7).

6. A novel anti-liquid carrying press pump according to claim 4, characterized in that: The brake (6) comprises an outer ring (63) and an inner ring (64) which extend downward from the top of the brake (6), the inner ring (64) is provided with an internal screw (65), the outer side of the connecting rod (3) is provided with an external screw (31) which is threadedly matched with the internal screw (65), and the sliding groove (62) is arranged on the side surface of the outer ring (63).

7. A novel anti-liquid carrying press pump according to claim 6, characterized in that: The lower end of the inner ring (64) is provided with a contraction opening (66) which is in sealing fit with the outer side of the connecting rod (3) when the pump is in the locked state, and the piston (71) is provided with an upward piston ring (72) which can be inserted into and sealingly connected with the outer side of the inner ring (64) when the press head (2) is popped up.

8. A novel anti-liquid carrying press pump according to claim 6, characterized in that: The connecting rod (3) is provided with a pressing portion (32) above the outer screw thread (31) which can press on the top of the brake (6) from above.

9. A novel anti-liquid carryover pump according to any one of claims 1-3, 5-8, characterized in that: The upper part of the brake (6) is provided with a sealing side portion (67) which is in sealing connection with the inner wall of the lock cover (5) and is in sealing connection with the inner wall of the lock cover (5) when the brake (6) is raised and lowered relative to the lock cover (5).

10. A novel anti-liquid carryover pump according to any one of claims 1-3, 5-8, characterized in that: The upper end of the pump body (1) is provided with a flange (13) which extends outwardly, and the bottom of the flange (13) is provided with a downward sealing ring (14), and the lower end of the sealing ring (14) is provided with a guide angle (15).

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