Air leakage device and inflator pump

Abstract

The embodiment of the utility model discloses a deflation device and an inflator pump, and relates to the technical field of inflation equipment, the deflation device comprises an air cavity, a pressing rod and a sealing block; a mounting groove is formed in the side wall of the air cavity, an air hole communicated with the air cavity is formed in the mounting groove, and an opening is formed in the mounting groove; an elastic arm is arranged at one end of the pressing rod, the end, provided with the elastic arm, of the pressing rod penetrates through the opening and extends into the mounting groove, the other end of the pressing rod penetrates out of the opening, and the elastic arm abuts against the bottom wall of the mounting groove; the sealing block is arranged on the outer side of the pressing rod in a sleeving mode, and the sealing block is pressed and sealed on the inner side of the opening through the elastic force of the elastic arm. The sealing block can be separated from the inner side of the opening by pressing the pressing rod, and air leakage is achieved. Through the integrated design of the elastic arm and the pressing rod, a traditional spring structure is abandoned, the overall structure of the air leakage device is remarkably simplified, and the assembly difficulty is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of inflating equipment, especially to a deflation device and inflating pump. BACKGROUND

[0002] In the field of inflating pump, the design of deflation function has important influence on the air tightness and operation convenience of the equipment. At present, the deflation device of the common inflating pump in the market adopts spring rebound structure to realize air path control. The basic principle is: by manually pressing the pressure rod, the spring is forced to deform to open the air path channel, so that the gas is quickly discharged; when stopping pressing, the spring restores the deformation relying on its elasticity, drives the pressure rod to reset and reseals the air path. This design relies on the mechanical properties of the spring to complete the cycle of deflation and sealing, which meets the basic functional requirements to some extent, but there are significant defects in actual application.

[0003] Firstly, the implementation of the spring rebound structure in the prior art needs to rely on multiple precisely matched mechanical components. For example, the spring needs to work with components such as the pressure rod, the fixed base and the like to ensure the accuracy of pressing and resetting. However, the complex structure design leads to complicated assembly process, especially in the installation and positioning process of the spring, the tolerance fit between the components needs to be strictly controlled, otherwise the spring may be offset or stuck. This not only increases the labor and time cost of the production link, but also puts forward higher requirements for the technical proficiency of the operators.

[0004] Secondly, the assembly complexity brought by the multi-component structure directly affects the reliability and maintainability of the product. As the core elastic element, the spring may cause the rebound force to attenuate due to fatigue or deformation in long-term use, thereby affecting the air path sealing effect. In addition, if there are slight errors in the assembly process, it may cause the air path to be not tightly closed or the deflation resistance to increase, reducing the user experience. Moreover, the complex internal structure also makes it difficult to quickly disassemble and repair the equipment when it fails, further increasing the maintenance cost in the later period.

[0005] In summary, although the existing deflation device of the inflating pump can complete the basic functions, the multi-component spring rebound structure brings problems such as complicated assembly, limited reliability and difficult maintenance, which has become an important bottleneck restricting the performance improvement and cost optimization of the product. A new deflation scheme is urgently needed to simplify the structure design, reduce the production cost and improve the stability in long-term use. UTILITY MODEL CONTENT

[0006] The technical problem to be solved by the utility model embodiment is the complicated assembly of the existing deflation mechanism based on the spring.

[0007] In order to solve the above problems, the utility model discloses a deflation device, the deflation device includes air cavity, pressing rod and sealing block, the lateral wall of air cavity is equipped with installation slot, the installation slot is equipped with the air hole that communicates air cavity, the installation slot is equipped with the opening, one end of pressing rod is equipped with elastic arm, the one end of pressing rod is equipped with elastic arm and passes through the opening and enters the installation slot, the other end of pressing rod passes through the opening, and the elastic arm is in contact with the bottom wall of installation slot, the sealing block is sleeved on the outside of pressing rod, and the sealing block is pressed and sealed in the inside of opening by the elastic force of elastic arm, wherein the sealing block can be separated from the inside of opening by pressing the pressing rod, and deflation is realized.

[0008] Further, the number of elastic arms is one or more, and the plurality of elastic arms are uniformly distributed at one end of the elastic arm.

[0009] Further, the sealing block is provided with a limiting hole, and the pressing rod passes through the limiting hole.

[0010] Further, the outside of the pressing rod is provided with a limiting groove, and the side wall of the limiting hole of the sealing block is embedded in the limiting groove.

[0011] Further, the deflation device further comprises a pressing plate and a sealing ring, the pressing plate covers one side of the opening of the installation slot, and the sealing ring is arranged between the pressing plate and the installation slot.

[0012] Further, the outer periphery of the opening of the installation slot is provided with a containing groove, the sealing ring is embedded in the containing groove, and at least part of the sealing ring protrudes from the containing groove.

[0013] Further, the pressing plate is provided with a through hole, and the end of the pressing rod passing through the opening passes through the through hole.

[0014] Further, the deflation device further comprises a flexible button, and the flexible button is arranged at the end of the pressing rod passing through the opening.

[0015] Further, the lower side of the flexible button is provided with a supporting leg, and the supporting leg is arranged around the outside of the pressing rod.

[0016] Secondly, the utility model discloses a kind of inflator pumps, it is characterized in that, the inflator pump includes the deflation device as described in first aspect.

[0017] Compared with prior art, the technical effects that the utility model embodiment can achieve include:

[0018] The utility model discloses an embodiment proposes a deflation device, including air cavity, pressure rod and sealing block, the lateral wall of air cavity is equipped with mounting groove, the mounting groove is equipped with the air hole of intercommunication air cavity, the mounting groove is equipped with opening, one end of pressure rod is equipped with elastic arm, and one end of pressure rod is equipped with elastic arm and passes through opening and extends into mounting groove, and the other end of pressure rod passes through opening, and elastic arm and bottom wall of mounting groove abut, sealing block is sleeved on the outside of pressure rod, and sealing block is pressed tightly in the inside of opening by the elastic force of elastic arm, can make sealing block and the inside of opening separate through pressing pressure rod, realizes deflation, through the integration of elastic arm and the integrated design of pressure rod, discarded traditional spring structure, the overall structure of deflation device is simplified significantly, and assembly difficulty is reduced effectively.

[0019] Through the integration of elastic arm and the integrated design of pressure rod, the traditional spring structure is abandoned, and the overall structure of the deflation device is simplified. The elastic arm directly abuts against the bottom wall of the mounting groove, and the elastic deformation provides the elastic force, without additional spring parts, thereby reducing the assembly process and the number of parts. The sealing block is tightly attached to the inside of the opening by the elastic force of the elastic arm, ensuring reliable sealing of the air path in the non-pressing state. When the pressure rod is pressed, the elastic arm is deformed under pressure to drive the sealing block away from the opening, realizing rapid deflation. The operation is intuitive and labor-saving. In addition, the integrated pressure rod and elastic arm design reduces the assembly error caused by the cooperation tolerance of multiple components, improving the consistency and stability of the product. This scheme not only reduces the production cost, but also improves the durability and maintenance convenience of the device due to the simplified structure, especially suitable for scenes that need frequent deflation. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description serve to explain the principles of the utility model.

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present utility model or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, other drawings can be obtained by those skilled in the art without creative labor.

[0022] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings, which do not constitute a limitation on the embodiments, and elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified, and the drawings do not constitute a proportional limitation.

[0023] Fig. 1 An explosion diagram of a deflation device is proposed for the embodiments of the present utility model;

[0024] Fig. 2 A cross-sectional view of the air pump is provided for the embodiment of the utility model;

[0025] Fig. 3 A structure schematic view of the air pump is provided for the embodiment of the utility model.

[0026] Reference numerals

[0027] Air cavity 10, pressure rod 20, sealing block 30, pressing plate 40, sealing ring 50, flexible button 60, fastener 70, mounting groove 11, air hole 111, opening 112, containing groove 113, elastic arm 21, limiting groove 22, limiting hole 31, through hole 41, supporting leg 61. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and similar components are denoted by similar reference numerals in the drawings. Obviously, the embodiments to be described below are only some of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] It should be understood that, when used in the specification and the appended claims, the terms "comprise" and "include" indicate the presence of described features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0030] It should also be understood that the terms used in the specification of the embodiments of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the utility model. As used in the specification of the embodiments of the utility model and the appended claims, "one", "a", and "the" in singular form are intended to include plural forms, unless the context clearly indicates otherwise.

[0031] Referring to Figs. 1-3 The utility model embodiment provides a kind of air release device, the air release device does not need to use spring, assembly mode is simple. In order to achieve above technical purpose, the air release device includes air cavity 10, pressure rod 20 and sealing block 30, specific structure is introduced as follows:

[0032] The side wall of the air cavity 10 is provided with a mounting groove 11, and the mounting groove 11 is provided with a gas hole 111 communicating with the air cavity 10. The gas in the mounting groove 11 can enter the mounting groove 11 through the gas hole 111. The mounting groove 11 is provided with an opening 112 for the pressure rod 20 to enter the mounting groove 11.

[0033] One end of the pressure rod 20 is provided with an elastic arm 21, and the pressure rod 20 is provided with the elastic arm 21, one end of which extends into the mounting groove 11 through the opening 112, and the other end of the pressure rod 20 extends out of the opening 112, and the elastic arm 21 abuts against the bottom wall of the mounting groove 11. The sealing block 30 is sleeved on the outside of the pressure rod 20, and the sealing block 30 is tightly sealed on the inside of the opening 112 by the elastic force of the elastic arm 21. The sealing block 30 is elastic, and the material thereof can be silica gel. The size of the sealing block 30 is greater than that of the opening 112, and the sealing block 30 is tightly sealed on the inside of the opening 112.

[0034] In the embodiment of the utility model, the sealing block 30 is separated from the inside of the opening 112 by pressing the pressure rod 20, so as to open the opening 112 and realize deflation.

[0035] By integrating the elastic arm 21 and the pressure rod 20, the traditional spring structure is abandoned, and the overall structure of the deflation device is significantly simplified. The elastic arm 21 directly abuts against the bottom wall of the mounting groove 11, and provides elastic force by utilizing its own elastic deformation, without the need for additional spring parts, thereby reducing the assembly process and the number of parts. The sealing block 30 is tightly attached to the inside of the opening 112 by the elastic force of the elastic arm 21, ensuring the reliable sealing of the air path in the non-pressing state. When the pressure rod 20 is pressed, the elastic arm 21 is deformed under pressure to drive the sealing block 30 to separate from the opening 112, realizing rapid deflation, which is intuitive and labor-saving. In addition, the integrated pressure rod 20 and elastic arm 21 design reduces the assembly error caused by the cooperation tolerance of multiple parts, improves the consistency and stability of the product. This scheme not only reduces the production cost, but also improves the durability and maintenance convenience of the device due to the simplified structure, and is especially suitable for scenes that need frequent deflation.

[0036] The utility model discloses an embodiment proposes a deflation device, including air cavity 10, press bar 20 and sealing block 30, the lateral wall of air cavity 10 is equipped with mounting groove 11, mounting groove 11 is equipped with the air hole 111 of intercommunication air cavity 10, mounting groove 11 is equipped with opening 112, one end of press bar 20 is equipped with elastic arm 21, and one end of press bar 20 is equipped with elastic arm 21 and passes through opening 112 and extends into mounting groove 11, the other end of press bar 20 passes through opening 112, and elastic arm 21 and the bottom wall of mounting groove 11 abut, sealing block 30 is sleeved on the outside of press bar 20, and sealing block 30 is pressed tightly in the inside of opening 112 by the elastic force of elastic arm 21, by pressing press bar 20, sealing block 30 can be separated from the inside of opening 112, realizes deflation, by the integration design of integrated elastic arm 21 and press bar 20, the traditional spring structure is discarded, and the overall structure of deflation device is simplified significantly, and assembly difficulty is effectively reduced.

[0037] Further, in some preferred embodiments, the number of elastic arms 21 is one or more, and the plurality of elastic arms 21 are evenly distributed at one end of the elastic arms 21.

[0038] In specific implementation, the plurality of evenly distributed elastic arms 21 can balance the load pressure during pressing through synergistic effect, avoiding fatigue or fracture of the elastic arms 21 caused by single-point stress concentration. The evenly distributed elastic arms 21 are synchronously deformed during the pressing process of the press bar 20, ensuring that the disengagement action of the sealing block 30 from the inside of the opening 112 is more stable, reducing the risk of deviation or jamming of the sealing block 30 caused by uneven stress. In addition, the multi-elastic-arm 21 design can provide redundant elastic force, so that even if a certain elastic arm 21 has performance degradation due to long-term use, the remaining elastic arms 21 can still maintain sufficient elastic force, thereby prolonging the service life of the device. This design not only improves the reliability of the deflation action, but also further optimizes the fatigue resistance of the device, which is suitable for high-frequency use of the inflation pump scene.

[0039] Further, in some preferred embodiments, the sealing block 30 is provided with a limiting hole 31, and the press bar 20 passes through the limiting hole 31.

[0040] In specific implementation, the relative position of the pressing rod 20 and the sealing block 30 is accurately constrained by the limiting hole 31 formed on the sealing block 30, effectively preventing the sealing block 30 from being displaced laterally during pressing or resetting. The guiding effect of the limiting hole 31 ensures that the sealing block 30 always moves axially along the pressing rod 20, avoiding wear of the sealing surface or a decrease in air tightness caused by deflection. In addition, the cooperative design of the limiting hole 31 and the pressing rod 20 simplifies the installation process of the sealing block 30, allowing reliable connection of the two without complex positioning, further reducing assembly difficulty. This structure improves the accuracy of the deflation action, while enhancing the stability of the sealing block 30 in long-term use, reducing the risk of leakage caused by loose parts.

[0041] Further, a limiting groove 22 is formed on the outer side of the pressing rod 20, and the side wall of the limiting hole 31 of the sealing block 30 is embedded in the limiting groove 22.

[0042] In specific implementation, the embedded cooperation of the limiting groove 22 and the side wall of the limiting hole 31 achieves mechanical interlocking of the pressing rod 20 and the sealing block 30, significantly enhancing the connection strength between the two. The limiting groove 22 physically restricts the lateral displacement of the sealing block 30, so that the sealing block 30 can maintain close cooperation with the pressing rod 20 even in a high-pressure or severe vibration environment, avoiding accidental disengagement. This design further optimizes the motion trajectory of the sealing block 30, ensuring that it only moves in the axial direction, thereby improving the consistency of the deflation and sealing actions. In addition, the limiting groove 22 has a simple machining and assembly process, which not only reduces costs but also improves production efficiency.

[0043] Further, in some preferred embodiments, the deflation device further comprises a pressing plate 40 and a sealing ring 50, the pressing plate 40 being covered on one side (e.g., the outer side of the opening 112) of the opening 112 of the mounting groove 11, and the sealing ring 50 being arranged between the pressing plate 40 and the mounting groove 11.

[0044] In specific implementation, the pressing plate 40 is fixed to the outer wall of the mounting groove 11 by a fastener 70. The combined design of the pressing plate 40 and the sealing ring 50 significantly improves the air tightness at the opening 112 of the mounting groove 11 through a double-sealing mechanism. After the pressing plate 40 covers the opening 112, the sealing ring 50 is compressed to fill the small gap between the pressing plate 40 and the mounting groove 11, effectively blocking the gas leakage path. This structure compensates for the deformation of parts caused by processing tolerances or long-term use through the deformation self-adaptability of the elastic sealing ring 50, ensuring the persistence of the sealing effect. At the same time, the pressing plate 40 provides rigid support for the overall structure, reducing the risk of deformation of the mounting groove 11 under frequent pressing, further enhancing the reliability and durability of the device.

[0045] Further, the outer periphery of the opening 112 of the mounting groove 11 is provided with a receiving groove 113, and the sealing ring 50 is embedded in the receiving groove 113 and at least partially protrudes from the receiving groove 113.

[0046] In specific implementation, the introduction of the receiving groove 113 provides the sealing ring 50 with a precise installation space, so that the sealing ring 50 can be completely embedded and partially protrude from the groove body to form a pre-compressed state. The protruding part directly contacts the pressing plate 40, and a larger compression amount is generated when the cover is closed, thereby improving the sealing efficiency of the sealing ring 50. The limiting effect of the receiving groove 113 prevents the sealing ring 50 from being deviated or falling off during installation or use, and ensures that the sealing ring 50 is always in the best sealing position. In addition, the design allows the use of a smaller size sealing ring 50, reduces the material cost, and prolongs the service life of the sealing ring 50 by optimizing the stress distribution of the sealing ring 50.

[0047] Further, the pressing plate 40 is provided with a through hole 41, and one end of the pressing rod 20 passing through the opening 112 passes through the through hole 41.

[0048] In specific implementation, the cooperation of the through hole 41 of the pressing plate 40 and the pressing rod 20 provides precise guidance for the axial movement of the pressing rod 20, reduces the friction resistance between the pressing rod 20 and the surrounding components during pressing, and the inner wall of the through hole 41 can be designed to be smooth or have a lubricating coating, further reducing friction loss and ensuring the smoothness of the pressing action. This structure avoids the wear problem caused by the direct contact between the pressing rod 20 and the mounting groove 11 in the traditional design, and prolongs the service life of the pressing rod 20.

[0049] Further, in some preferred embodiments, the air release device further comprises a flexible button 60, and the flexible button 60 is arranged at one end of the pressing rod 20 passing through the opening 112.

[0050] In specific implementation, the introduction of the flexible button 60 significantly improves the operation experience of the user. The flexible material of the flexible button 60 can buffer the impact force during pressing, reduce finger fatigue, and provide clear tactile feedback, making it easy for the user to perceive the completion state of the air release action.

[0051] Further, the lower side of the flexible button 60 is provided with a support leg 61, and the support leg 61 is arranged around the outer side of the pressing rod 20.

[0052] In specific implementation, the number of support legs 61 can be multiple, and the multiple support legs 61 are arranged around the outer side of the pressing rod 20 to provide a stable support basis for the flexible button 60 and prevent the button from tilting or loosening after multiple pressings.

[0053] When pressing, the middle part of the button corresponding to the area of the pressing rod 20 is deformed and extruded downward to press the pressing rod 20, and the pressing rod 20 moves downward to release air.

[0054] The utility model discloses an inflation pump, the inflation pump includes the deflation device provided in any one embodiment above.

[0055] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0056] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0057] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0058] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be connected, or it can be detachably connected, or it can be integrated; it can be mechanical connection, or it can be electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0059] In the utility model, unless otherwise specifically defined and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or the indirect contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical direction of the first feature above and oblique above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical direction of the first feature below and oblique below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0060] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0061] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, these modifications and variations of the present application are intended to be included within the scope of the claims of the present application and equivalents thereof. Therefore, the present application is also intended to include these modifications and variations.

[0062] The above is a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A deflation device characterized by, The air cavity, the pressing rod and the sealing block are included; the sidewall of the air cavity is provided with a mounting groove, the mounting groove is provided with a gas hole communicating with the air cavity, and the mounting groove is provided with an opening; one end of the pressing rod is provided with an elastic arm, the end of the pressing rod provided with the elastic arm penetrates into the mounting groove through the opening, the other end of the pressing rod penetrates out of the opening, and the elastic arm abuts against the bottom wall of the mounting groove; the sealing block is sleeved on the outside of the pressing rod, and the sealing block is tightly sealed on the inside of the opening by the elastic force of the elastic arm; wherein the sealing block is separated from the inside of the opening by pressing the pressing rod, and deflation is realized.

2. The air release device of claim 1, wherein, The number of the elastic arms is one or more, and the plurality of elastic arms are uniformly distributed on one end of the elastic arm.

3. The air release device of claim 1, wherein, The sealing block is provided with a limiting hole, and the pressing rod penetrates through the limiting hole.

4. The air release device of claim 3, wherein, The outside of the pressing rod is provided with a limiting groove, and the sidewall of the limiting hole of the sealing block is embedded in the limiting groove.

5. The air release device of claim 1, wherein, The deflation device further includes a pressing plate and a sealing ring, the pressing plate covers one side of the opening of the mounting groove, and the sealing ring is arranged between the pressing plate and the mounting groove.

6. The air release device of claim 5, wherein, The outer periphery of the opening of the mounting groove is provided with a containing groove, the sealing ring is embedded in the containing groove, and at least part of the sealing ring protrudes from the containing groove.

7. The air release device of claim 5, wherein, The pressing plate is provided with a through hole, and the end of the pressing rod penetrating out of the opening penetrates through the through hole.

8. The air release device of claim 5, wherein, The deflation device further includes a flexible button, and the flexible button is arranged at the end of the pressing rod penetrating out of the opening.

9. The air release device of claim 8, wherein, The lower side of the flexible button is provided with a supporting leg, and the supporting leg is arranged around the outside of the pressing rod.

10. An inflator pump characterized by, The inflation pump includes the deflation device according to any one of claims 1-9.

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