Balloon Inflator

Abstract

This utility model discloses a balloon inflator. A base is provided with an inflating working area, and a negative pressure generating hole is provided in the inflating working area. A cover is positioned in the inflating working area, and at least a portion of the inflating working area and the inner cavity of the cover form an inflating cavity for accommodating a balloon. The negative pressure generating hole is located within the inflating cavity. A first opening is provided on the cover at a position opposite to the inflating working area. A protruding ring is provided along the edge of the first opening for positioning the balloon after inflation. The protruding ring extends in the opposite direction to the inflating working area. The negative pressure generating port of the negative pressure generating device is connected to the negative pressure generating hole via a pipe. This balloon inflator makes balloon inflation more convenient to use, increases the amount of decorations or liquid that can be inserted into the balloon, and thus enhances the decorative effect of the inflated balloon.

Description

Technical Field

[0001] This utility model belongs to the technical field of balloon inflation equipment, specifically relating to a balloon inflator. Background Technology

[0002] Currently, balloon inflation is generally achieved by manually blowing air into the balloon's inflator with one's mouth, or by using a dedicated air pump. However, when it is necessary to insert decorations or liquids into the balloon, this can only be done before the balloon is inflated. Due to the small size of the balloon's inflation port, it is difficult to insert decorations or liquids, and the amount that can be inserted is also limited. Therefore, it is inconvenient to use balloons with decorations or liquids inserted, and it also limits the effect of the balloon inflating after being stuffed with decorations or liquids. Therefore, there is an urgent need for improvement. Utility Model Content

[0003] This utility model is a balloon inflator designed to address the shortcomings of the aforementioned technical problems.

[0004] This utility model provides a balloon inflator, comprising:

[0005] A base, wherein an expansion working area is provided on the base, and a negative pressure generating hole is provided on the expansion working area;

[0006] A cover is positioned in the expansion working area, and at least a portion of the expansion working area forms an expansion cavity for accommodating a balloon between the inner cavity of the cover and the inner cavity of the cover. The negative pressure generating hole is located within the expansion cavity. A first opening is provided on the cover at a position opposite to the expansion working area. A convex ring is provided along the edge of the first opening for positioning the balloon after its inflation port expands. The convex ring extends in the opposite direction to the expansion working area.

[0007] A negative pressure generating device, wherein the negative pressure generating port of the negative pressure generating device is connected to a negative pressure generating hole via a pipe;

[0008] When the negative pressure generating device works continuously, the air pressure in the expansion chamber is lower than the external air pressure, causing the air pressure to continuously enter the balloon cavity through the expanded inflation port on the balloon, so that the balloon is in an inflated state.

[0009] According to the balloon inflator described above, it further includes a bracket disposed in the inflation cavity. The bracket includes a recessed portion suspended in the inflation cavity. The recessed portion is hollowed out and is disposed opposite to the first opening. The area above the recessed portion in the inflation cavity serves as an inflation position for balloon inflation.

[0010] According to the balloon inflator described above, the inflating working area includes a boss, the cover is fitted onto the boss through its second opening, the peripheral side of the boss contacts the inner wall of the cover, the top surface of the boss and the inner cavity of the cover form the inflating cavity, and the negative pressure generating hole is disposed on the top surface of the boss.

[0011] According to the balloon inflator described above, the inflating operation area further includes a support surface continuously disposed around the protrusion. The support surface supports the end face of the cover with the second opening. Side baffles are disposed continuously or at intervals on the part of the support surface away from the protrusion. At least one first locking protrusion is disposed on the side of the side baffle facing the protrusion. A locking gap is formed between the first locking protrusion and the support surface. At least one second locking protrusion is disposed on the outer wall of the part of the cover located between the side baffle and the protrusion. The second locking protrusion is engaged in the locking gap.

[0012] According to the balloon inflator described above, the support surface (112) includes an annular bottom surface and a soft annular ring. The annular bottom surface and the soft annular ring are correspondingly overlapped, so that the side of the soft annular ring facing the cover (2) supports the end face of the cover (2) with the second opening (25) and forms a locking gap (119) with the first locking protrusion (118).

[0013] The balloon inflator described above also includes a sealing plug, which, when located within the convex ring, is at least partially enveloped by the inflation port of the inflated balloon.

[0014] The balloon inflator described above also includes an air outlet, which is mounted on the base, and the air outlet of the negative pressure generating device is connected to the air outlet.

[0015] According to the balloon inflator described above, the bracket further includes a plurality of support frames arranged in a circular array around the recess, each of which is placed on the top surface of the boss or on a step on the inner wall of the casing.

[0016] According to the balloon inflator described above, the top edge of the boss or the position near the top edge of the boss is provided with continuous or spaced protrusions, and the bottom surface of each support frame contacts the top surface of the protrusion so that the bracket is mounted on the protrusion.

[0017] According to the balloon inflator described above, at least one of the support frames has a stop extending toward the protrusion on its bottom surface. A recess is formed between the side wall of the stop and the bottom surface of the support frame, and the protrusion is fitted into the recess, so that the stop and the protrusion are mutually positioned.

[0018] According to the balloon inflator described above, the top surface of the boss has a recessed portion that is recessed towards the bottom of the base.

[0019] According to the balloon inflator described above, the upper opening of the convex ring is formed with an outwardly expanding annular portion, which is protruding on the outer side wall of the convex ring.

[0020] According to the balloon inflator described above, the negative pressure generating hole is located at the position of the recessed part, and the upper surface of the recessed part has a plurality of airflow guiding grooves arranged in a ring array around the negative pressure generating hole.

[0021] According to the balloon inflator described above, the base is provided with an installation cavity, and the negative pressure generating device is installed in the installation cavity.

[0022] This invention discloses a balloon inflator. First, a balloon is placed into the inflation chamber. Then, the balloon's inflation port is expanded and folded over, its elasticity causing it to be inverted onto a convex ring. At this time, a negative pressure generating device continuously operates, making the air pressure inside the inflation chamber lower than the external air pressure. This causes air pressure to continuously enter the balloon's cavity through the expanded inflation port, inflating the balloon. Decorations or liquids can then be inserted into the balloon through the expanded inflation port. After the operation is complete, the inflation port is detached from the convex ring and sealed. Finally, the cover detaches from the convex ring to remove the inflated balloon. This balloon inflator's method of balloon inflation is convenient to use, increases the amount of decorations or liquids that can be inserted into the balloon, and thus enhances the decorative effect of the inflated balloon. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure;

[0024] Figure 2 This is an exploded view of the overall structure.

[0025] Figure 3 An exploded view showing the casing and bracket separated from each other;

[0026] Figure 4 This is a schematic diagram of the casing structure;

[0027] Figure 5 This is a schematic diagram of the structure where the bracket and base are combined;

[0028] Figure 6 A schematic diagram of the base structure (I);

[0029] Figure 7 Schematic diagram of the base (II);

[0030] Figure 8 It is a sectional view of the overall structure;

[0031] Figure 9 This is a schematic diagram of the structure for installing balloons on a balloon inflator;

[0032] Figure 10 This is a schematic diagram of a sealing plug inserted into the inflation port of a balloon on a balloon inflator.

[0033] Figure 11 This is a magnified view of point A;

[0034] Figure 12 This is a magnified view of point B.

[0035] Labels: 1. Base; 2. Cover; 3. Negative pressure generating device; 4. Bracket;

[0036] 11. Expansion working area; 12. Upper shell; 13. Lower shell; 21. First opening; 22. Protruding ring; 23. Annular part; 24. Second locking protrusion; 25. Second opening; 41. Recess; 42. Support frame; 43. Stop block; 44. Recess;

[0037] 111. Boss; 112. Support surface; 113. Side stop; 114. Recess; 115. Protrusion; 116. Negative pressure generating hole; 117. Airflow guiding groove; 118. First locking protrusion; 119. Locking gap; 120. Air outlet; 121. Flexible annular ring; 122. Annular bottom surface; 123. Tube body; 411. Central hole; 412. Side hole; 5. Expansion chamber; 6. Sealing plug; 61. Annular protrusion. Detailed Implementation

[0038] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model, and the specific and direct descriptions of related structures are merely for the convenience of understanding the present utility model; the specific features do not necessarily or directly limit the scope of implementation of the present utility model. Conventional choices and substitutions made by those skilled in the art under the guidance of the present utility model should all be considered within the scope of protection claimed by this utility model.

[0039] like Figures 1-9 As shown in the figure, the balloon inflator described in this embodiment includes a base 1, a cover 2, and a negative pressure generating device 3.

[0040] The base 1 is provided with an expansion working area 11, and the expansion working area 11 is provided with a negative pressure generating hole 116. The negative pressure generating hole 116 can be circular, square or other shapes, and extends downward to form a tube. The cover 2 is positioned on the expansion working area 11, and at least a part of the expansion working area 11 and the inner cavity of the cover 2 form an expansion cavity 5 for accommodating the balloon. The negative pressure generating hole 116 is located within the expansion cavity. The cover 2 is provided with a first opening 21 at a position opposite to the expansion working area 11. The first opening 21 has a raised ring 22 along its edge for positioning the balloon after inflation. The raised ring 22 extends in the opposite direction to the inflation working area 11. The base 1 has an installation cavity, and the negative pressure generating device 3 is installed in the installation cavity. The negative pressure generating port of the negative pressure generating device 3 is connected to the tube body of the negative pressure generating hole 116 through a pipe. The negative pressure generating device 3 can be a vacuum pump and is powered by a battery. The cover 2 and the base 1 are generally made of plastic. The base 1 is formed by splicing and fixing the upper half shell 12 and the lower half shell 13 together.

[0041] The upper opening of the convex ring 22 forms an outwardly expanding annular portion 23. The annular portion 23 is protruding on the outer side wall of the convex ring 22. Therefore, when the balloon is placed into the expansion cavity, the inflation port of the balloon is expanded and folded over, and the inflation port itself is used to invert onto the convex ring 22. The ring portion locks the folded inflation port in place. Then, the negative pressure generating device 3 works continuously, so that the air pressure in the expansion cavity is lower than the external air pressure, causing the air pressure to continuously enter the balloon cavity through the expanded inflation port on the balloon, so that the balloon is inflated.

[0042] In this embodiment, a bracket 4 is also provided in the expansion cavity. The bracket 4 includes a recessed portion 41 suspended in the expansion cavity. The recessed portion 41 is provided with a central hole 411 and a plurality of side holes 412 located around the central hole 411 to make the recessed portion 41 hollow. The recessed portion 41 is opposite to the first opening 21. The area above the recessed portion 41 in the expansion cavity serves as an expansion position for balloon inflation. The recessed portion 41 is mainly designed to support the inflated balloon and prevent the balloon from drooping, which could cause the inflation port to detach from the convex ring 22, especially after liquid is injected into the balloon. The hollow design of the recessed portion 41 makes it easier to generate negative pressure in the expansion cavity, improving the performance.

[0043] Furthermore, the bracket 4 also includes a plurality of support frames 42 arranged in a circular array around the recess 41. Each support frame 42 is placed on the top surface of the boss 111 or on the step of the inner wall of the cover 2. For the two methods of installing the bracket 4 in the expansion cavity, the preferred technical solution is as follows: the top edge of the boss 111 or the position near the edge of the top surface is provided with continuous or spaced protrusions 115. The bottom surface of each support frame 42 contacts the top surface of the protrusion 115 so that the bracket 4 is mounted on the protrusion 115. In order to make the bracket 4 more stable, at least one support frame 42 is provided with a stop block 43 extending towards the boss 111 on the bottom surface. The side wall of the stop block 43 and the bottom surface of the support frame 42 form a recess 44. The protrusion 115 fits into the recess 44, so that the stop block 43 and the protrusion 115 are mutually limited. The protrusion 115 is generally arranged in a ring.

[0044] In this embodiment, the expansion working area 11 includes a boss 111, which can be a cylindrical boss 111 or other polygonal boss 111. The cover 2 is fitted onto the boss 111 through its second opening 25. The peripheral side of the boss 111 contacts the inner wall of the cover 2. The expansion cavity is formed between the top surface of the boss 111 and the inner cavity of the cover 2. The negative pressure generating hole 116 is provided on the top surface of the boss 111. This structure allows the cover 2 to be detachably installed on the base 1. When it is necessary to remove the inflated balloon, the inflation port is detached from the protruding ring 22 and the opening is sealed. An upward force is applied to the cover 2 to make it detach from the boss 111. Then the inflated balloon is taken away from the bracket 4.

[0045] Preferably, the expansion working area 11 further includes a support surface 112 continuously disposed around the protrusion 111. The support surface 112 supports the end face of the cover 2 having the second opening 25. Side baffles 113 are continuously or intermittently disposed on the support surface 112 away from the protrusion 111. At least one first locking protrusion 118 is disposed on the side of the side baffle facing the protrusion 111. A locking gap 119 is formed between the first locking protrusion 118 and the support surface 112. The cover 2 located at the side baffle... At least one second locking protrusion 24 is provided on the outer wall of the part between 113 and the boss 111. The second locking protrusion 24 is engaged in the locking gap 119. Its structure allows the cover 2 to be snapped on the base 1, thereby preventing the cover 2 from detaching from the base 1 during the use of the balloon inflator. The side baffle 113 preferably adopts a ring structure, and the first locking protrusion 118 and the second locking protrusion 24 are preferably three in number to enhance the stability of the snap-on installation. However, two can also be used. The second locking protrusion 24 is inclined in a spiral shape.

[0046] In this embodiment, the top surface of the boss 111 has a recessed portion 114 that is recessed towards the bottom of the base 1. The recessed portion 114 is spherically shaped so that the upper surface of the recessed portion 114 is a concave spherical surface.

[0047] Preferably, the negative pressure generating hole 116 is located at the position of the recess 114, and the upper surface of the recess 114 is formed with a plurality of airflow guiding grooves 117 arranged in a ring array around the negative pressure generating hole 116. The structure makes it easier for the airflow in the expansion chamber to be drawn away by the negative pressure generating device 3.

[0048] Furthermore, the support surface 112 includes an annular bottom surface 122 and a flexible annular ring 121. The annular bottom surface 122 and the flexible annular ring 121 are correspondingly overlapped, so that the side of the flexible annular ring 121 facing the cover 2 supports the end face of the cover 2 with the second opening 25, and forms a locking gap 119 with the first locking protrusion 118. When the lower end face of the cover 2 contacts the upper side of the flexible annular ring 121 and rotates, the second locking protrusion 24 enters into the locking gap 119 in a rotating manner, so that the highest part of the second locking protrusion 24 abuts against the lower side of the first locking protrusion 118 and applies pressure to the flexible annular ring, so that the lower end face of the cover 2 is in close contact with the upper side of the flexible annular ring 121, thereby achieving a sealed installation of the cover 2 on the base 1, so that the expansion chamber can generate negative pressure after the negative pressure generating device 3 is working.

[0049] In this embodiment, a sealing plug 6 is also included. When the sealing plug 6 is located inside the convex ring 22, the sealing plug 6 is at least partially wrapped by the inflation port of the inflated balloon. When wrapped, the tightening ring at the inflation port of the balloon is located on the upper side of the annular convex 61, thereby preventing the sealing plug from separating from the balloon and sealing the inflated balloon to prevent the liquid inside the balloon from flowing out. At the same time, due to the elasticity of the balloon, the part between the tightening ring at the inflation port of the balloon and the inflated balloon is tightly bound to the surface of the sealing plug and the protrusion. At this time, since the inflation port of the inflated balloon is sealed, it is convenient to remove the balloon from the cover in the inflated state. When removing it, the cover and the base are disengaged and separated, and then the inflated balloon is removed from the cover.

[0050] In this embodiment, an air outlet 120 is also included. The air outlet 120 is installed on the base 1. The air outlet of the negative pressure generating device 3 is connected to the air outlet through a pipe. The inflation port of the balloon can be sleeved on the tube body 123 of the air outlet 120. Then, during the operation of the negative pressure generating device 3, air is released from the air outlet, causing air to be released from the tube body 123 of the air outlet 120, which causes the balloon to inflate.

[0051] In this embodiment, a switch and a power socket are also provided on the base. A power control board is provided inside the base. The power control board is a conventional DC power control board. Therefore, the negative pressure generating device 3, the switch and the power socket are respectively connected to the power control board. At this time, the power cord of the power adapter can be plugged into the power socket, so that the negative pressure generating device 3 is powered after the power adapter is connected to the power supply.

Claims

1. A balloon inflator, characterized in that, include: The base (1) is provided with an expansion working area (11) and a negative pressure generating hole (116) is provided on the expansion working area (11). A cover (2) is positioned in the expansion working area (11). At least a portion of the expansion working area (11) and the inner cavity of the cover (2) form an expansion cavity for accommodating a balloon. The negative pressure generating hole (116) is located within the expansion cavity. A first opening (21) is provided on the cover (2) at a position opposite to the expansion working area (11). A convex ring (22) for positioning the balloon after the inflation port of the balloon is expanded is provided along its edge on the first opening (21). The convex ring (22) extends in the opposite direction to the expansion working area (11). The negative pressure generating device (3) has a negative pressure generating port connected to the negative pressure generating hole (116) via a pipe.

2. The balloon inflator according to claim 1, characterized in that, It also includes a bracket (4) disposed in the expansion cavity. The bracket (4) includes a recess (41) suspended in the expansion cavity. The recess (41) is hollowed out and is disposed opposite to the first opening (21). The area above the recess (41) in the expansion cavity serves as an expansion position for balloon inflation.

3. The balloon inflator according to claim 2, characterized in that, The expansion working area (11) includes a boss (111). The cover (2) is fitted onto the boss (111) through its second opening (25). The peripheral side of the boss (111) is in contact with the inner wall of the cover (2). The expansion cavity is formed between the top surface of the boss (111) and the inner cavity of the cover (2). The negative pressure generating hole (116) is provided on the top surface of the boss (111).

4. The balloon inflator according to claim 3, characterized in that, The expansion working area (11) also includes a support surface (112) continuously disposed around the boss (111). The support surface (112) supports the end face of the cover (2) with the second opening (25). The support surface (112) is provided with side stops (113) continuously or intermittently disposed on the part away from the boss (111). At least one first locking protrusion (118) is provided on the side of the side stop (113) facing the boss (111). A locking gap (119) is formed between the first locking protrusion (118) and the support surface (112). At least one second locking protrusion (24) is provided on the outer wall of the part of the cover (2) located between the side stop (113) and the boss (111). The second locking protrusion (24) is engaged in the locking gap (119).

5. The balloon inflator according to claim 4, characterized in that, The support surface (112) includes an annular bottom surface and a flexible annular ring. The annular bottom surface and the flexible annular ring are correspondingly overlapped so that the side of the flexible annular ring facing the cover (2) supports the end face of the cover (2) with the second opening (25) and forms a locking gap (119) with the first locking protrusion (118).

6. The balloon inflator according to claim 1, characterized in that, It also includes a sealing plug (6), which, when located inside the convex ring, is at least partially covered by the inflation port of the inflated balloon.

7. The balloon inflator according to claim 1, characterized in that, It also includes an air outlet (120), which is mounted on the base (1), and the air outlet of the negative pressure generating device (3) is connected to the air outlet (120).

8. The balloon inflator according to claim 3, characterized in that, The bracket (4) also includes a plurality of support frames (42) arranged in a circular array around the recess (41), each of the support frames (42) being placed on the top surface of the boss (111) or on the step of the inner wall of the cover (2).

9. The balloon inflator according to claim 8, characterized in that, The top edge of the boss (111) or the position near the top edge of the top surface is provided with continuous or spaced protrusions (115), and the bottom surface of each support frame (42) contacts the top surface of the protrusion (115) so that the bracket (4) is mounted on the protrusion (115).

10. The balloon inflator according to claim 9, characterized in that, At least one of the support frames (42) has a stop (43) extending toward the boss (111) on its bottom surface. A recess (44) is formed between the side wall of the stop (43) and the bottom surface of the support frame (42). The boss (115) is fitted into the recess (44), so that the stop (43) and the boss (115) are mutually limited.

11. The balloon inflator according to any one of claims 3-5 and 8-10, characterized in that, The top surface of the boss (111) has a recess (114) that is recessed toward the bottom of the base (1).

12. The balloon inflator according to claim 1, characterized in that, The upper opening of the convex ring (22) is formed with an outwardly expanding annular portion (23), which is convex on the outer side wall of the convex ring (22).

13. The balloon inflator according to claim 11, characterized in that, The negative pressure generating hole (116) is located at the position of the recess (114), and the upper surface of the recess (114) is formed with a plurality of airflow guiding grooves (117) arranged in a ring array around the negative pressure generating hole (116). The base (1) has an installation cavity, and the negative pressure generating device (3) is installed in the installation cavity.

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