Pistol pump capable of preventing mistaken spraying of children
By setting the stop lock and follower block structure on the pistol pump, the problem of mistaken spraying in children is solved, safe use and liquid saving is achieved, ensuring automatic locking when spraying is not required to prevent liquid splashing.
Patent Information
- Application Number
- CN202420911903.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-28
AI Technical Summary
The existing pistol pump lacks anti-child spraying function, which is prone to liquid splashing due to children's operation, causing safety risks and waste.
A pistol pump that prevents children from accidentally spraying is designed. By setting a stop lock on the pump body, the structure of the follower block and the rotating positioning block is used to prevent the piston rod from sliding when the child accidentally pulls the trigger, thereby preventing liquid spraying. Out, unlocking to allow liquid to flow out when spraying is required.
Effectively prevent children from spraying by mistake, protect children from safety, avoid liquid waste, simple and practical structure, ensure automatic locking when spraying is not required, and prevent liquid splashing.
Smart Images
Figure CN222267517U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to a pistol pump which can prevent children from spraying by mistake. [Background technology]
[0002] A pistol pump is a device that, by pulling the trigger, sucks the liquid in a bottle into the pump body a predetermined number of times and sprays it out in a predetermined form. It is widely used in the pharmaceutical and daily chemical industries.
[0003] At present, the existing pistol pumps do not have a child-proof opening function. When a child accidentally touches the solution bottle with a pistol pump, the child can easily cause accidental spraying by pulling the trigger. This not only poses a risk to the child's personal safety, but also causes a great waste of solution.
[0004] Therefore, the present invention is just produced based on the above shortcomings. [Utility Model Content]
[0005] The utility model aims to overcome the shortcomings of the prior art and provide a pistol pump which has a simple structure and is safe to use and can prevent children from accidentally spraying.
[0006] The utility model is realized by the following technical solutions:
[0007] A pistol pump for preventing children from accidentally spraying, characterized in that: a locking cover 1 can be fixed on a liquid container bottle, a pump body 2 is installed on the locking cover 1, a liquid inlet channel 21 connected to a straw is provided in the pump body 2, a liquid storage chamber 23 with one end open and connected to the liquid inlet channel 21 through a connecting port 22, a first one-way valve 3 that can control the opening of the connecting port 22 to allow the liquid in the liquid inlet channel 21 to flow into the liquid storage chamber 23, a liquid outlet channel 24 for the liquid in the liquid storage chamber 23 to flow out, one end of which can be slidably sealed in the liquid storage chamber 23 and the other end of which extends out of the opening of the liquid storage chamber 23 The piston rod 4 outside the pump body 2 is provided with a nozzle 5 for spraying liquid at the outlet of the liquid outlet channel 24. The pump body 2 is hinged with a trigger 6 that can drive the piston rod 4 to slide and squeeze the liquid in the liquid storage chamber 23 to flow into the liquid outlet channel 24. A driving trigger 6 is provided between the trigger 6 and the pump body 2 to drive the piston rod 4 to reset so that negative pressure is generated in the liquid storage chamber 23, so that the first one-way valve 3 opens and the liquid is sucked into the liquid storage chamber 23. An elastic device 7 is provided on the pump body 2 so that it can rotate relatively. The stop lock 8 can lock or unlock the piston rod 4 after rotation.
[0008] The child-proof pistol pump for preventing accidental spraying as described above is characterized in that: the piston rod 4 is provided with a follower block 41 which moves with the piston rod 4, and the stop lock 8 is provided with a stopper 81 which can support the follower block 41 after rotating with the stop lock 8, thereby preventing the piston rod 4 from being driven by the trigger 6.
[0009] The child-proof pistol pump is characterized in that: the stop lock 8 is provided with a rotation positioning block 86 which abuts against the follower block 41 when the stop lock 8 is rotated into place so that the stop block 81 abuts against the follower block 41.
[0010] The pistol pump for preventing children from accidentally spraying as described above is characterized in that: the stop lock 8 includes an inner tube 82 with one end inserted into the opening of the liquid storage chamber 23, and a clamping structure is provided between the outer wall of the inner tube 82 and the inner wall of the liquid storage chamber 23, and the end of the piston rod 4 extending out of the pump body 2 passes through the inner tube 82 and is connected to the trigger 6, the follower block 41 is arranged on the outer wall of the piston rod 4, and the stop block 81 and the rotation positioning block 86 are arranged on the inner wall of the inner tube 82.
[0011] The pistol pump for preventing children from accidentally spraying as described above is characterized in that the clamping structure includes an annular groove 231 provided on the inner wall of the liquid storage chamber 23 and a convex ring 821 provided on the outer wall of the inner tube 82 and clamped in the annular groove 231 .
[0012] The pistol pump for preventing accidental spraying by children as described above is characterized in that an outer ring 83 is arranged outside the inner cylinder 82, and the outer ring 83 and the inner cylinder 82 form a slot 84 for inserting the end of the liquid storage chamber 23.
[0013] The child-proof pistol pump is characterized in that: a waist-shaped hinge hole 42 is provided on the piston rod 4, and a connecting shaft 61 with one end extending into the hinge hole 42 is provided on the trigger 6.
[0014] The pistol pump for preventing children from accidentally spraying as described above is characterized in that: the stop lock 8 is provided with a shifting block 85 for shifting the stop lock 8 to rotate.
[0015] The pistol pump for preventing children from accidentally spraying as described above is characterized in that: the pump body 2 is provided with a connecting channel 25 that can connect the liquid storage chamber 23 with the liquid outlet channel 24, and the connecting channel 25 is provided with a second one-way valve 9 for controlling the connection between the liquid storage chamber 23 and the liquid outlet channel 24.
[0016] The pistol pump for preventing children from accidentally spraying as described above is characterized in that the elastic device 7 comprises two arc-shaped elastic arms integrally formed on both sides of the trigger 6, and one end of the arc-shaped elastic arm is connected to the pump body 2.
[0017] Compared with the prior art, the utility model has the following advantages:
[0018] The utility model has a simple structure and is practical. When it is not necessary to spray liquid, the stop lock piece can be rotated to rotate the stop block to the side of the follower block close to the liquid storage chamber and support the follower block, thereby blocking the piston rod from being driven by the trigger to slide into the liquid storage chamber to squeeze the liquid in the liquid storage chamber and discharge the liquid. At this time, the piston rod is in a locked state. In this way, even if a child accidentally pulls the trigger, no liquid will be sprayed out of the nozzle, which effectively prevents the occurrence of accidental spraying of aerosol, protects the safety of children, and prevents waste of aerosol. When it is necessary to spray liquid, the stop lock piece can be rotated in the opposite direction to make the stop block away from the follower block. At this time, the piston rod is in an unlocked state and can be driven by the trigger to slide into the liquid storage chamber to squeeze the liquid in the liquid storage chamber and discharge the liquid.
Brief Description of the Drawings
[0019] Figure 1 It is a three-dimensional diagram of the utility model;
[0020] Figure 2 It is a cross-sectional view of the utility model;
[0021] Figure 3 It is an assembly drawing of the piston rod and the stop lock when the piston rod is unlocked;
[0022] Figure 4 It is an assembly drawing of the piston rod and the stop lock when the piston rod is locked;
[0023] Figure 5 It is an exploded view of the utility model. [Specific implementation method]
[0024] The utility model is further described below in conjunction with the accompanying drawings:
[0025] like Figures 1 to 5 As shown, a pistol pump for preventing children from accidentally spraying is provided, which includes a locking cover 1 that can be fixed on a liquid container bottle, a pump body 2 installed on the locking cover 1, a liquid inlet channel 21 connected to a straw, a liquid storage chamber 23 with one end opened and connected to the liquid inlet channel 21 through a connecting port 22, a first one-way valve 3 that can control the opening of the connecting port 22 to allow the liquid in the liquid inlet channel 21 to flow into the liquid storage chamber 23, a liquid outlet channel 24 for allowing the liquid in the liquid storage chamber 23 to flow out, a liquid outlet channel 24 that can be slidably sealed in the liquid storage chamber 23 at one end and opened from the liquid storage chamber 23 at the other end A piston rod 4 extends out of the pump body 2, and the pump body 2 is provided with a nozzle 5 for spraying liquid at the outlet of the liquid outlet channel 24. A trigger 6 is hinged on the pump body 2, which can drive the piston rod 4 to slide and squeeze the liquid in the liquid storage chamber 23 to flow into the liquid outlet channel 24. A driving trigger 6 is provided between the trigger 6 and the pump body 2 to drive the piston rod 4 to reset so that negative pressure is generated in the liquid storage chamber 23, so that the first one-way valve 3 opens and the liquid is sucked into the liquid storage chamber 23. An elastic device 7 is provided between the trigger 6 and the pump body 2, which drives the trigger 6 to drive the piston rod 4 to reset, so that negative pressure is generated in the liquid storage chamber 23, so that the first one-way valve 3 opens and the liquid is sucked into the liquid storage chamber 23. A stop lock 8 is relatively rotatable on the pump body 2, which can lock or unlock the piston rod 4 after rotation.
[0026] Specifically, the piston rod 4 is provided with a follower block 41 that moves with the piston rod 4 , and the stop lock 8 is provided with a stopper 81 that can rotate with the stop lock 8 to support the follower block 41 so as to prevent the piston rod 4 from being driven by the trigger 6 .
[0027] The utility model has a simple structure and is practical. Figure 4 As shown, when it is not necessary to spray liquid, the stop lock 8 can be rotated to rotate the stopper 81 to the side of the follower block 41 close to the liquid storage chamber 23 and to support the follower block 41, thereby blocking the piston rod 4 from being driven by the trigger 6 to slide into the liquid storage chamber 23 to squeeze the liquid in the liquid storage chamber 23 out of the traveling direction. At this time, the piston rod 4 is in a locked state, so that even if a child accidentally pulls the trigger 6, the nozzle 5 will not spray liquid, effectively preventing the occurrence of accidental spraying of aerosol, which can not only protect the safety of children, but also prevent the waste of aerosol. Figure 3 As shown, when liquid needs to be sprayed, the stop lock 8 can be rotated in the opposite direction to move the stop block 81 away from the follower block 41. At this time, the piston rod 4 is in an unlocked state and can be driven by the trigger 6 to slide into the liquid storage chamber 23 to squeeze the liquid in the liquid storage chamber 23 out.
[0028] Furthermore, the stop lock 8 is provided with a rotation positioning block 86 which abuts against the follower block 41 when the stop lock 8 is rotated into place so that the stop block 81 abuts against the follower block 41. The rotation positioning block 86 is used to rotationally position the stop lock 8. When locking is required, the stop lock 8 is rotated 45° clockwise. When the rotation positioning block 86 abuts against the follower block 41, the stop block 81 rotates to the side of the follower block 41 close to the liquid storage chamber 23 and abuts against the follower block 41. When in use, the stop lock 8 is rotated 45° counterclockwise to unlock it for normal use.
[0029] In order to facilitate the rotation of the stop lock 8, a shifting block 85 for shifting the stop lock 8 to rotate is provided on the stop lock 8. The shifting block 85 is exposed outside the pump body 2 and can be manually shifted.
[0030] like Figure 2 As shown, the stop lock 8 includes an inner tube 82 with one end inserted into the opening of the liquid storage chamber 23, and a clamping structure is provided between the outer wall of the inner tube 82 and the inner wall of the liquid storage chamber 23 to realize the rotation connection of the stop lock 8 to the pump body 2, and the end of the piston rod 4 extending out of the pump body 2 passes through the inner tube 82 and is connected to the trigger 6, the follower block 41 is provided on the outer wall of the piston rod 4, and the block 81 and the rotation positioning block 86 are provided on the inner wall of the inner tube 82. In a specific implementation, two follower blocks 41 are provided on each side of the piston rod 4, two block blocks 81 are provided and are relatively provided on the inner wall of the inner tube 82, and two rotation positioning blocks 86 are provided on the inner wall of the inner tube 82 and are respectively provided on one side of the block 81 in a one-to-one correspondence.
[0031] Specifically, the clamping structure includes an annular groove 231 provided on the inner wall of the liquid storage chamber 23 and a convex ring 821 provided on the outer wall of the inner cylinder 82 and clamped into the annular groove 231. An outer ring 83 is provided on the outer side of the inner cylinder 82, and the outer ring 83 and the inner cylinder 82 form a clamping groove 84 for inserting the end of the liquid storage chamber 23. With the above structure, the connection between the stop lock 8 and the pump body 2 can be realized, making the assembly convenient and quick.
[0032] Specifically, a waist-shaped hinge hole 42 is provided on the piston rod 4, and a connecting shaft 61 with one end extending into the hinge hole 42 is provided on the trigger 6. Through the above structure, the piston rod 4 can be driven to slide into the liquid storage chamber 23 when the trigger 6 is rotated.
[0033] like Figure 2 As shown, the pump body 2 is provided with a connecting passage 25 that can connect the liquid storage chamber 23 and the liquid outlet passage 24, and a second one-way valve 9 that controls the connection and disconnection between the liquid storage chamber 23 and the liquid outlet passage 24 is provided in the connecting passage 25. The second one-way valve 9 is a plastic elastic valve. When the trigger is pulled, the first one-way valve is closed, and the liquid in the liquid storage chamber is pressed into the connecting passage 25 by the piston rod. The liquid squeezes and pushes the second one-way valve 9 to deform, and the second one-way valve 9 is opened to form a passage. The liquid enters the liquid outlet passage and is sprayed out through the nozzle. After the liquid in the connecting passage 25 is discharged and the pressure is reduced, the second one-way valve 9 is deformed and restored, and the passage between the liquid storage chamber 23 and the liquid outlet passage 24 is disconnected again.
[0034] like Figure 5 As shown, the elastic device 7 includes two arc-shaped elastic arms integrally formed on both sides of the trigger 6, one end of the arc-shaped elastic arm is connected to the pump body 2, and when the trigger is released, the elastic arm bounces the trigger 6 to move the piston rod 4 outward. Specifically, the elastic arm and the trigger 6 are integrally injection-molded, there are two elastic arms and they are respectively located on the left and right sides of the pump body, the elastic arm is an upwardly protruding curved structure, the rear end of which is provided with a hook, and the rear part of the pump body 2 is provided with a hook groove that cooperates with the hook.
Claims
1. A child-proof pistol pump, characterized in that: A locking cover (1) that can be fixed on a liquid container bottle, wherein a pump body (2) is mounted on the locking cover (1), wherein the pump body (2) is provided with a liquid inlet channel (21) connected to a straw, a liquid storage chamber (23) with one end opened and connected to the liquid inlet channel (21) through a communication port (22), a first one-way valve (3) that can control the communication port (22) to open so that the liquid in the liquid inlet channel (21) flows into the liquid storage chamber (23), a liquid outlet channel (24) that can allow the liquid in the liquid storage chamber (23) to flow out, and a piston rod (4) with one end slidably sealed in the liquid storage chamber (23) and the other end extending out of the pump body (2) from the opening of the liquid storage chamber (23). The pump body (2) is provided with a nozzle (5) located at the outlet of the liquid outlet channel (24) for spraying liquid. The pump body (2) is hinged with a trigger (6) capable of driving a piston rod (4) to slide and squeeze the liquid in the liquid storage chamber (23) to flow into the liquid outlet channel (24). An elastic device (7) is provided between the trigger (6) and the pump body (2) to drive the trigger (6) to drive the piston rod (4) to reset so that negative pressure is generated in the liquid storage chamber (23) so that the first one-way valve (3) opens and the liquid is sucked into the liquid storage chamber (23). The pump body (2) is relatively rotatably provided with a stop lock (8) which can lock or unlock the piston rod (4) after rotation.
2. The child-proof pistol pump according to claim 1, characterized in that: The piston rod (4) is provided with a follower block (41) which moves with the piston rod (4), and the stop lock (8) is provided with a stop block (81) which can rotate with the stop lock (8) to support the follower block (41) and thus prevent the piston rod (4) from being driven by the trigger (6).
3. The child-proof pistol pump according to claim 2, characterized in that: The stop lock (8) is provided with a rotation positioning block (86) which abuts against the follower block (41) when the stop lock (8) is rotated to a certain position so that the stop block (81) abuts against the follower block (41).
4. The child-proof pistol pump according to claim 3, characterized in that: The stop lock (8) comprises an inner tube (82) with one end inserted into the opening of the liquid storage chamber (23), a clamping structure is provided between the outer wall of the inner tube (82) and the inner wall of the liquid storage chamber (23), one end of the piston rod (4) extending out of the pump body (2) passes through the inner tube (82) and is connected to the trigger (6), the follower block (41) is provided on the outer wall of the piston rod (4), and the stop block (81) and the rotation positioning block (86) are provided on the inner wall of the inner tube (82).
5. The child-proof pistol pump according to claim 4, characterized in that: The clamping structure comprises an annular groove (231) provided on the inner wall of the liquid storage cavity (23) and a convex ring (821) provided on the outer wall of the inner cylinder (82) and clamped into the annular groove (231).
6. The child-proof pistol pump according to claim 4, characterized in that: An outer ring (83) is arranged on the outer side of the inner cylinder (82), and the outer ring (83) and the inner cylinder (82) form a slot (84) for inserting the end of the liquid storage cavity (23).
7. The child-resistant pistol pump according to claim 4, characterized in that: The piston rod (4) is provided with a waist-shaped hinge hole (42), and the trigger (6) is provided with a connecting shaft (61) with one end extending into the hinge hole (42).
8. The child-resistant pistol pump according to claim 1, characterized in that: The stop lock (8) is provided with a shifting block (85) for shifting the stop lock (8) to rotate.
9. The child-resistant pistol pump according to claim 1, characterized in that: The pump body (2) is provided with a connecting passage (25) capable of connecting the liquid storage chamber (23) and the liquid outlet passage (24), and a second one-way valve (9) for controlling the connection and disconnection between the liquid storage chamber (23) and the liquid outlet passage (24) is provided in the connecting passage (25).
10. The child-resistant pistol pump according to claim 1, characterized in that: The elastic device (7) comprises two arc-shaped elastic arms integrally formed on both sides of the trigger (6), and one end of the arc-shaped elastic arm is connected to the pump body (2).