Inflator handle capable of measuring air pressure

Abstract

The utility model discloses an inflator handle capable of measuring air pressure. The inflator handle capable of measuring the air pressure comprises a T-shaped shell, an air pressure meter and an air guide pipe. The T-shaped shell comprises a handle rod, a first air inlet connector connected with an inflator pull rod and a second air inlet connector communicated with the first air inlet connector, and a weight reduction space is formed in the handle rod to achieve overall weight reduction of the inflator handle. The bottom of the handle rod is further provided with a vent hole communicated with the first air inlet connector, and the top of the handle rod is further provided with a perspective window, so that the numerical value of the barometer can be read conveniently. The barometer is installed in the weight reduction space and located in the middle of the handle rod, the barometer comprises a shell, a spring and a scale sliding seat, the spring and the scale sliding seat are located in the shell, the scale sliding seat can slide in the extending direction of the shell, and an air measuring hole is formed in the end, close to the scale sliding seat, of the shell; the air guide pipe is fixedly arranged in the weight reduction space, and the vent hole and the air measuring hole are communicated through the air guide pipe, so that the barometer can accurately measure the air pressure value at the first air inlet connector.

Description

Technical Field

[0001] The utility model belongs to the technical field of air pump air pressure measurement, and specifically relates to a handle of an air pump capable of measuring air pressure. Background Art

[0002] With the continuous progress of society and the continuous development of science, people will consider going on self-driving tours to improve their own experience. When on a self-driving tour, inflatable products such as inflatable tents, inflatable pads, inflatable beds, inflatable sofas, inflatable wing kites, SUP surfboards, kayaks, inflatable pools, and swimming rings are needed, and an air pump is required to inflate them to enable the use of these products. Currently, the hand-operated air pumps of air pumps on the market do not have a pressure gauge, making it difficult to predict the air pressure of the inflatable products, which easily leads to insufficient inflation or excessive air pressure in the inflatable products, thus affecting the normal use of the inflatable products. When the existing electric air pumps are used outdoors, it is very inconvenient when they run out of power.

[0003] The existing patented technology (publication number: CN115711214A) discloses a portable hand-operated air pump of an air pump. By installing a pressure gauge on the top of the first handle, the air pressure of the corresponding inflatable products required can be measured through the pressure gauge, so as to reach the required air pressure value of the inflatable products. However, there are still the following problems:

[0004] 1. Installing the pressure gauge on the top of the handle is not convenient for storing the handle. Moreover, if a small pressure gauge is used, it is not convenient for the user to observe the air pressure. If a larger pressure gauge is used, it will affect the user's grip on the handle.

[0005] 2. Most of the pressure gauges installed on the existing air pumps are made of metal and have an internal hairspring. They have poor anti-drop performance, and when the air pressure is lower than 5 psi, the pointer of the scale hardly moves, resulting in low accuracy. Content of the Utility Model

[0006] In view of the problems and deficiencies of the above-mentioned existing technologies, the utility model provides a handle of an air pump capable of measuring air pressure. By embedding and installing the pressure gauge inside the handle rod, the volume occupied due to the installation of the pressure gauge is reduced, which is convenient for storing the handle of the air pump. The pressure gauge is arranged inside the handle rod, and a perspective window is provided on the handle rod to facilitate reading the air pressure value of the pressure gauge. The housing of the pressure gauge is made of plastic material, with strong anti-drop performance. The air pressure is measured through the elastic deformation of the spring, and the measurement accuracy is high.

[0007] The utility model is realized through the following technical solutions:

[0008] An air pump handle capable of measuring air pressure, comprising a T-shaped housing, a pressure gauge and an air duct. The T-shaped housing includes a handle rod, a first air inlet joint connected to the air pump pull rod, and a second air inlet joint communicating with the first air inlet joint. A weight reduction space is provided inside the handle rod to achieve overall weight reduction of the air pump handle. An air vent communicating with the first air inlet joint is also provided at the bottom of the handle rod, and a perspective window is further provided at the top of the handle rod to facilitate reading the value of the pressure gauge. The pressure gauge is installed in the weight reduction space and is located in the middle of the handle rod. The pressure gauge includes a housing, a spring and a scale slide seat located inside the housing. The scale slide seat can slide along the extension direction of the housing. An air measurement hole is provided at one end of the housing close to the scale slide seat; the air duct is fixed in the weight reduction space and is located between the pressure gauge and the first air inlet joint. The air vent and the air measurement hole are connected through the air duct, so that the pressure gauge can accurately measure the air pressure value at the first air inlet joint.

[0009] Further, an adjustment plug is provided on the side of the pressure gauge away from the air vent. The inner side of the housing has internal threads that cooperate with the external threads of the adjustment plug. The length of the internal threads is greater than the length of the external threads. One end of the spring abuts against the adjustment plug, and the other end abuts against the scale slide seat. By screwing the adjustment plug to adjust the position of the adjustment plug relative to the housing, the compression degree of the spring can be adjusted, so that the pressure gauge can accurately display the air pressure value.

[0010] Further, both the housing and the air duct are prepared by an injection molding process to improve the anti-drop performance of the housing and the air duct. An injection opening is provided at one end of the air duct, and a sealing bolt is provided in the injection opening to seal the opening formed by injection molding.

[0011] Further, sealing rings are provided between the air duct and the air vent, between the air duct and the air measurement hole, and between the sealing bolt and the air duct to improve the sealing performance of the connection between the air duct and the air vent and between the air duct and the air measurement hole, and prevent air leakage at the connection from affecting the accuracy of air pressure measurement.

[0012] Further, the first air inlet joint is fixed to the middle position below the handle rod, and the first air inlet joint is perpendicular to the handle rod, which is convenient for the user to hold the handle rod and squeeze or drag the pull rod of the air pump through the first air inlet joint. A plurality of support rib plates are provided between the first air inlet joint and the handle rod to enhance the fastening of the connection between the first air inlet joint and the handle rod.

[0013] Further, the extension direction of the pressure gauge, the extension direction of the handle rod, the extension direction of the air duct, and the extension direction of the perspective window are all the same. Scale lines are engraved on the outside of the pressure gauge, and the extension direction of the scale lines is the same as the extension direction of the perspective window to fully display the scale lines and facilitate the user to read the scale data. The perspective window is located directly above the scale line, and the length of the perspective window is not less than the length of the scale line to be able to see the entire scale data.

[0014] Further, a support seat protrudes from the inner side of the handle rod, and the pressure gauge is detachably fixed to the support seat through a fixing bolt to fix the pressure gauge to the inside of the handle rod, ensuring the stability of the pressure gauge relative to the handle rod.

[0015] Further, the T-shaped housing further includes extension handles located on both sides of the handle rod. The extension handles are fixedly connected to the handle rod through threaded connections. By adding extension handles on both sides of the handle rod, while ensuring good storage performance of the handle of the air pump, the comfort of people holding the handle rod or the extension handles to control the air pump is improved.

[0016] Further, the top of the extension handle is flat, facilitating the user to press and hold the handle to press down the pull rod of the air pump, increasing the contact area between the hand and the extension handle in the force application direction, and improving the comfort of the air pumping operation.

[0017] Further, an anti-slip rubber sleeve is sleeved on the handle rod and the extension handle; or an anti-slip rubber sleeve is sleeved on the extension handle, improving the comfort of the hand holding the handle rod or the extension handle.

[0018] Advantages of the utility model:

[0019] 1. By embedding and installing the pressure gauge on the inner side of the handle rod, the volume occupied due to the setting of the pressure gauge is reduced, facilitating the storage of the handle of the air pump;

[0020] 2. The pressure gauge is arranged on the inner side of the handle rod, and a perspective window is arranged on the handle rod to facilitate reading the air pressure value of the pressure gauge;

[0021] 3. The housing of the pressure gauge is made of plastic material, with strong anti-drop performance;

[0022] 4. The air pressure is measured through the elastic deformation of the spring, with high measurement accuracy. Description of the drawings

[0023] Figure 1 A schematic structural diagram for explaining an exemplary embodiment of a handle of an air pump capable of measuring air pressure in the present utility model;

[0024] Figure 2 A top view for explaining an exemplary embodiment of a handle of an air pump capable of measuring air pressure in the present utility model;

[0025] Figure 3 A cross-sectional view for explaining an exemplary embodiment of a handle of an air pump capable of measuring air pressure in the present utility model;

[0026] Figure 4 For explaining Figure 3 A partial enlarged schematic diagram at position A in

[0027] Figure 5 A schematic structural diagram for illustrating a schematic implementation of a cutaway state of an air pump handle capable of measuring air pressure in the utility model;

[0028] Figure 6 A side view for illustrating a schematic embodiment of an air pump handle capable of measuring air pressure in the utility model;

[0029] Figure 7 An exploded view for illustrating a schematic implementation of an air pump handle capable of measuring air pressure in the utility model;

[0030] Figure 8 A structural schematic diagram for illustrating another exemplary embodiment of an air pump handle capable of measuring air pressure in the utility model;

[0031] Figure 9 A schematic diagram for illustrating a connection between a barometer and an air guide tube in the utility model.

[0032] List of parts and reference numerals:

[0033] 1. T-shaped shell; 11. Handle bar; 111. Weight reduction space; 112. Ventilation hole; 113. Perspective window; 114. Support seat; 12. First air inlet connector; 13. Second air inlet connector; 14. Support ribs; 15. Extension handle; 16. Anti-slip rubber sleeve; 2. Pressure gauge; 21. Shell; 211. Air measuring hole; 212. Internal thread; 22. Spring; 23. Scale slide seat; 24. Adjustment plug; 241. External thread; 25. Fixing bolt; 3. Air guide tube; 31. Sealing bolt; 32. Sealing ring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that the directional terms such as left, right, up, down, front and back in the embodiments of the present invention are merely relative concepts or are based on the normal use state of the product, that is, the direction of movement of the product, and should not be considered as limiting.

[0036] In addition, it should be noted that dynamic terms such as "relative motion" mentioned in the embodiments of the present utility model not only refer to changes in position, but also include motions such as rotation and rolling where there is no relative change in position, but the state changes.

[0037] Finally, it should be noted that when a component is referred to as "being located" or "being disposed on" another component, it can be on the other component or there may be an intermediate component present simultaneously. When a component is referred to as "being connected to" another component, it can be directly connected to the other component or there may be an intermediate component present simultaneously.

[0038] As Figures 1 to 9 shown, a pump handle capable of measuring air pressure includes a T-shaped housing 1, a pressure gauge 2, and an air guide pipe 3. The T-shaped housing 1 includes a handle rod 11, a first air inlet joint 12 connected to the pump pull rod, and a second air inlet joint 13 communicating with the first air inlet joint 12. A weight reduction space 111 is provided inside the handle rod 11 to achieve overall weight reduction of the pump handle. A vent hole 112 communicating with the first air inlet joint 12 is further provided at the bottom of the handle rod 11, and a perspective window 113 is provided at the top of the handle rod 11 to facilitate reading the value of the pressure gauge 2. The pressure gauge 2 is installed in the weight reduction space 111 and is located at the middle position of the handle rod 11. The pressure gauge 2 includes a housing 21, a spring 22, and a scale slider 23 located inside the housing 21. The scale slider 23 can slide along the extending direction of the housing 21. An air measurement hole 211 is provided at one end of the housing 21 close to the scale slider 23. The air guide pipe 3 is fixedly provided in the weight reduction space 111 and is located between the pressure gauge 2 and the first air inlet joint 12. The vent hole 112 and the air measurement hole 211 are communicated through the air guide pipe 3 so that the pressure gauge 2 can accurately measure the air pressure value at the first air inlet joint 12.

[0039] In one embodiment, the pump handle is installed on the body of the pump, the first air inlet joint 12 is connected to the pull rod of the pump, and the second air inlet joint 13 is connected to the inflation tube. The user reciprocally pushes and pulls the pull rod of the pump by holding the T-shaped housing 1 to fill the gas generated by the pump into the inflatable product. Among them, since the inflatable product is connected to the second air inlet joint 13 through the air inlet pipe, that is, the air pressure in the inflatable product is equal to the air pressure at the second air inlet joint 13. Also, because the first air inlet joint 12 communicates with the second air inlet joint 13, the gas in the first air inlet joint 12 flows into the pressure gauge 2 successively through the vent hole 112, the air guide pipe 3, and the air measurement hole 211, and squeezes the spring 22 through the scale slider 23, so that the scale slider 23 squeezes the spring 22 under the action of the gas pressure and moves toward the side close to the spring 22 until it reaches a balanced state. At this time, the reading shown at the position where the scale slider 23 points to the scale line of the housing 21 is exactly the air pressure value in the inflatable product.

[0040] In one embodiment, the housing 21 of the barometer is entirely transparent to better show the specific position of the sliding seat inside the barometer.

[0041] It should be noted that the entire barometer 2 of the present utility model is disposed inside the handle rod 11. By embedding and installing the barometer 2 into the inside of the handle rod 11, compared with an external barometer 2, the storage space is saved. The barometer 2 is in the same extending direction as the handle rod 11, and a long strip-shaped perspective window 113 is opened at the top of the handle rod 11 to observe the reading of the barometer 2. Compared with a rotary barometer, the reading area of this barometer 2 is in a long strip shape and is in the same extending direction as the handle rod 11, the reading area is larger, and the reading is more convenient. Moreover, the barometer 2 is located at the central position of the handle rod 11. When people hold the handle rod 11, they often hold both sides of the handle rod 11 to lift or squeeze the air pump pull rod.

[0042] In one embodiment, the diameter of the ventilation hole 112 is the same as the diameter of the air measurement hole 211, and the diameter of the ventilation hole 112 is less than half of the inner diameter of the first air inlet joint 12.

[0043] In one embodiment, threaded connection parts are provided at the ends of the first air inlet joint 12 and the second air inlet joint 13.

[0044] Preferably, an adjustment plug 24 is provided on the side of the barometer 2 away from the ventilation hole 112. An internal thread 212 that cooperates with the external thread 241 of the adjustment plug 24 is provided inside the housing 21. The length of the internal thread 212 is greater than the length of the external thread 241. One end of the spring 22 abuts against the adjustment plug 24, and the other end abuts against the scale sliding seat 23. By screwing the adjustment plug 24 to adjust the position of the adjustment plug 24 relative to the housing 21, the compression degree of the spring 22 can be adjusted, so that the barometer 2 can accurately display the air pressure value.

[0045] In one embodiment, affected by the manufacturing process, in order to ensure that the barometer 2 can accurately measure the air pressure value, an opening is provided at one end of the housing 21 of the barometer 2, and the adjustment plug 24 is installed in the opening. By screwing the adjustment plug 24, the adjustment plug 24 can move relative to the housing 21 in the extending direction of the housing 21 to adjust the extrusion force of the adjustment plug 24 on the spring 22, so as to ensure that the barometer 2 can accurately measure the air pressure value in the inflated product.

[0046] Preferably, both the housing 21 and the air guide pipe 3 are prepared by injection molding process to improve the anti-drop performance of the housing 21 and the air guide pipe 3. An injection molding opening is provided at one end of the air guide pipe 3, and a plug bolt 31 is provided in the injection molding opening to block the opening formed by injection molding.

[0047] In one embodiment, the housing 21 and the air duct 3 are injection-molded, with high precision and low cost, and can be mass-produced.

[0048] In one embodiment, when injection-molding the air duct 3, in order to reduce the injection difficulty, one end of the air duct 3 needs to be designed as an open structure to facilitate the injection of the air duct 3.

[0049] Preferably, sealing rings 32 are provided between the air duct 3 and the ventilation hole 112, between the air duct 3 and the air measurement hole 211, and between the plug bolt 31 and the air duct 3, to improve the sealing performance of the connection between the air duct 3 and the ventilation hole 112 and between the air duct 3 and the air measurement hole 211, and prevent air leakage at the connection from affecting the accuracy of air pressure measurement.

[0050] In one embodiment, the sealing ring 32 is a rubber sealing ring.

[0051] Preferably, the first air inlet joint 12 is fixed to the middle position below the handle rod 11, and the first air inlet joint 12 is perpendicular to the handle rod 11, which is convenient for the user to hold the handle rod 11 and squeeze or drag the pull rod of the air pump through the first air inlet joint 12. Support rib plates 14 are provided between the first air inlet joint 12 and the handle rod 11, and a plurality of support rib plates 14 are provided to enhance the fastening of the connection between the first air inlet joint 12 and the handle rod 11.

[0052] In one embodiment, a plurality of support rib plates 14 are provided at the connection between the first air inlet joint 12 and the handle rod 11, the support rib plates 14 are located on both sides of the first air inlet joint 12, and the number of support rib plates 14 on both sides of the first air inlet joint 12 is the same.

[0053] Preferably, the extending directions of the pressure gauge 2, the handle rod 11, the air duct 3, and the viewing window 113 are all the same. Scale lines are engraved on the outside of the pressure gauge 2, and the extending direction of the scale lines is the same as the extending direction of the viewing window 113 to fully display the scale lines and facilitate the user to read the scale data. The viewing window 113 is located directly above the scale lines, and the length of the viewing window 113 is not less than the length of the scale lines to be able to see the entire scale data.

[0054] In one embodiment, as Figures 1 to 9 shown, the pressure gauge 2, the handle rod 11, the air duct 3, and the viewing window 113 are all horizontally arranged. The scale slider 23 can slide along the extending direction of the housing 21 of the air duct 3. When the scale slider 23 is stationary relative to the housing 21, the air pressure of the inflatable product on the scale slider 23 is equal to the elastic force of the spring 22 on the scale slider 23. At this time, the value of the scale line position indicated by the scale slider 23 is the air pressure inside the inflatable product.

[0055] Preferably, a support seat 114 protrudes from the inner side of the handle rod 11, and the pressure gauge 2 is detachably fixed to the support seat 114 through a fixing bolt 25 to fix the pressure gauge 2 to the inside of the handle rod 11, ensuring the stability of the pressure gauge 2 relative to the handle rod 11.

[0056] In one embodiment, a support seat 114 is installed on the inner side of the handle rod 11 to support the handle rod 11 and the internal structure of the handle rod 11, improve the structural strength of the handle rod 11, and enable the pressure gauge 2 and the air guide pipe 3 to be firmly fixed to the inside of the handle rod 11.

[0057] Preferably, the T-shaped housing 1 further includes extension handles 15 located on both sides of the handle rod 11. The extension handles 15 are fixedly connected to the handle rod 11 by threaded connection. By adding extension handles 15 on both sides of the handle rod 11, while ensuring good storage of the air pump handle, the comfort of people holding the handle rod 11 or the extension handles 15 to control the air pump is improved.

[0058] In one embodiment, in order to facilitate people to hold the T-shaped housing 1, extension handles 15 are detachably installed on both sides of the handle rod 11 to extend the handle rod 11. When the air pump is not in use, the extension handles 15 on both sides of the handle rod 11 can be removed to facilitate the storage of the handle of the air pump.

[0059] In one embodiment, the length of the handle rod 11 is 10 cm to 20 cm, and the length of the extension handle 15 is 5 cm - 10 cm.

[0060] Preferably, the top of the extension handle 15 is flat, which is convenient for the user to press the grip handle to press down the air pump pull rod, increasing the contact area between the hand and the extension handle 15 in the force application direction and improving the comfort of the air pumping operation.

[0061] Preferably, an anti-slip rubber sleeve 16 is sleeved on the handle rod 11 and the extension handle 15; or an anti-slip rubber sleeve 16 is sleeved on the extension handle 15 to improve the comfort of the hand holding the handle rod 11 or the extension handle 15.

[0062] When adopting the above-mentioned air pump handle capable of measuring air pressure, by embedding and installing the pressure gauge 2 into the inner side of the handle rod 11, the volume occupied by the installation of the pressure gauge 2 is reduced, which is convenient for the storage of the air pump handle. The pressure gauge 2 is arranged on the inner side of the handle rod 11, and a perspective window 113 is arranged on the handle rod 11 to facilitate the reading of the air pressure value of the pressure gauge 2. The housing 21 of the pressure gauge 2 is made of plastic material, with strong anti-drop performance. The air pressure is measured through the elastic deformation of the spring 22, and the measurement accuracy is high.

[0063] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A pump handle capable of measuring air pressure, characterized in that, Comprising: A T-shaped housing, the T-shaped housing includes a handle rod, a first air inlet joint connected to the air pump pull rod, and a second air inlet joint communicating with the first air inlet joint. A weight reduction space is provided inside the handle rod. A vent hole communicating with the first air inlet joint is further provided at the bottom of the handle rod, and a perspective window is further provided at the top of the handle rod. A pressure gauge, the pressure gauge is installed in the weight reduction space and located at the middle position of the handle rod. The pressure gauge includes a housing, a spring and a scale slide seat located inside the housing. The scale slide seat can slide along the extending direction of the housing. An air measurement hole is provided at one end of the housing close to the scale slide seat. An air duct, the air duct is fixedly arranged in the weight reduction space and located between the pressure gauge and the first air inlet joint. The vent hole and the air measurement hole are communicated through the air duct.

2. The air pump handle capable of measuring air pressure according to claim 1, characterized in that, An adjusting plug is provided on one side of the pressure gauge away from the vent hole. The inner side of the housing has an internal thread matching the external thread of the adjusting plug. The length of the internal thread is greater than the length of the external thread. One end of the spring abuts against the adjusting plug, and the other end abuts against the scale slide seat.

3. The air pump handle capable of measuring air pressure according to claim 1, wherein, Both the housing and the air duct are prepared by an injection molding process. An injection opening is provided at one end of the air duct, and a sealing bolt is provided in the injection opening.

4. The air pump handle capable of measuring air pressure according to claim 3, characterized in that, Sealing rings are provided between the air duct and the vent hole, between the air duct and the air measurement hole, and between the sealing bolt and the air duct.

5. The air pump handle capable of measuring air pressure according to claim 1, wherein The first air inlet joint is fixed to the middle position below the handle rod. The first air inlet joint is perpendicular to the handle rod. Support rib plates are provided between the first air inlet joint and the handle rod, and a plurality of support rib plates are provided.

6. The air pump handle capable of measuring air pressure according to claim 1, characterized in that The extending direction of the pressure gauge, the extending direction of the handle rod, the extending direction of the air duct, and the extending direction of the perspective window are all the same. Scale lines are engraved on the outside of the pressure gauge. The perspective window is located directly above the scale lines, and the length of the perspective window is not less than the length of the scale lines.

7. The air pump handle capable of measuring air pressure according to claim 1, characterized in that, A support seat protrudes from the inner side of the handle rod. The pressure gauge is detachably fixed to the support seat by a fixing bolt.

8. The air pump handle capable of measuring air pressure according to claim 1, wherein, The T-shaped housing further includes extension handles located on both sides of the handle rod. The extension handles are fixedly connected to the handle rod by threaded connection.

9. The air pump handle capable of measuring air pressure according to claim 8, wherein, The top of the extension handle is flat.

10. The air pump handle capable of measuring air pressure according to claim 8, characterized in that, Anti-slip rubber sleeves are sleeved on the handle rod and the extension handles; Or anti-slip rubber sleeves are sleeved on the extension handles.

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