Multi-functional valve wrench

Abstract

The present application relates to valve wrench technical field, especially to a kind of multifunctional valve wrench, including shell, the shell includes air release part, air charging part and air inlet part, the air release part, air charging part and air inlet part are all communicated with each other by communicating part;Air release device is limitedly contained in the air release part, air charging device is contained in the air charging part, conversion communicating device is arranged in the communicating part, the air release part, air charging part and air inlet part are communicated with each other by conversion communicating device two two, the free end of the air release part and air charging part is respectively detachably connected with threaded sleeve.The present application has air charging and air release function simultaneously, it is convenient to operate, can easily realize air charging and air release function, while wrench one end head can be fixed on valve, ensure that valve core and valve core wrench cannot be sprayed by air pressure, improve the security, solve the prior art air charging and air release need two kinds of tools, operation process is not safe and convenient enough, prone to time, manpower waste and material loss problem.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valve wrenches, and in particular to a multifunctional valve wrench. BACKGROUND

[0002] Currently, tire inflation and deflation tests are required during the trial production of automobiles, and this process often takes about 20 minutes. During the operation, the operator needs to manually hold the inflation and deflation clamps, but this action has no technical value. The use of tools is not intelligent enough, resulting in a waste of labor costs. Secondly, when the valve wrench is deflated, the tire pressure is high, and the valve wrench can be easily bounced away at the moment of deflation, resulting in the loss of parts or damage to personnel and equipment and the waste of material costs. Inflation and deflation require two tools, and personnel need to find two tools separately. This process may vary due to the worker's tool management method, and the time cost cannot be ignored if the tool management is not proper. Most of the existing valve wrenches are only simple one-slot disassembly rods that match the valve core. The use of such a wrench design is prone to the above problems, resulting in unnecessary waste and unpredictable losses.

[0003] CN2301300Y belongs to a tire inflation wrench. It is a sleeve and a bolt outside the existing valve wrench. The sleeve is a "Y" shaped tube with a gas pipe opening. The valve wrench can be extended and retracted in the sleeve. A tire pressure gauge can also be installed on the sleeve to monitor the tire pressure in time. The utility model has the advantages of simple structure, easy manufacturing, retaining the advantages of the original valve wrench, and making up for the shortcomings of the prior art. It can flexibly disassemble and assemble the tire valve core and conveniently inflate and deflate the tire, thereby improving work efficiency.

[0004] CN201941739U is a kind of tire fast inflation device, which belongs to the technical field of vehicle tire repair machinery and relates to an inflation device that can quickly inflate tires. It is composed of a gas pipe with an air inlet pipe connected thereto. A valve wrench is installed in the gas pipe. The front end of the gas pipe has an internal thread matched with the valve. The utility model has the advantages of simple structure, convenient use, quick completion of tire inflation, and prevention of gas leakage.

[0005] However, the prior art does not solve the problem of needing two tools for inflation and deflation, which is not safe and convenient enough, and is prone to time, labor waste and material loss. SUMMARY

[0006] The present application aims to provide a multifunctional valve wrench, which has air charging and discharging functions, is convenient to operate, can easily realize air charging and discharging functions, and can fix the head of the wrench on the valve to prevent the valve core and the valve core wrench from being ejected by air pressure, thereby improving safety and solving the problems of the prior art, such as the need for two tools for air charging and discharging, inconvenient operation, and easy waste of time, manpower and materials.

[0007] The present application provides the following solutions

[0008] The multifunctional valve wrench comprises a shell, the shell comprises an air discharging part, an air charging part and an air inlet part, the air discharging part, the air charging part and the air inlet part are connected to each other through a communication part, a discharging device is arranged in the air discharging part, a charging device is arranged in the air charging part, a switching communication device is arranged in the communication part, the air discharging part, the air charging part and the air inlet part are connected to each other through the switching communication device, and a threaded sleeve is detachably connected to the free end of the air discharging part and the air charging part.

[0009] Further, the discharging device comprises a cylinder body, the cylinder body is fixedly connected to the inner wall of the air discharging part, a pneumatic rotor is arranged in the cylinder body, one end of the pneumatic rotor is connected to a valve core extractor, and the front end of the valve core extractor extends out of the opening of the free end of the air discharging part.

[0010] The air inlet part is connected to a compressed air source, the compressed air flow generated by the air source enters the cylinder body to drive the pneumatic rotor to rotate and further drive the valve core extractor to rotate, so that the valve core can be automatically screwed to discharge air.

[0011] Further, the front and rear ends of the cylinder body are provided with a front cover and a rear cover, front and rear bearings are embedded in the center positions of the front cover and the rear cover respectively, an air inlet is arranged on the rear cover, an air outlet is arranged on the side wall of the cylinder body close to the front cover, and an air outlet hole is arranged on the side wall of the air discharging part at a position corresponding to the air outlet; the pneumatic rotor comprises a rotating shaft, the rotating shaft penetrates through the front cover and the rear cover at both ends and is in interference fit with the front and rear bearings respectively; the front end of the rotating shaft penetrates through the front cover and the front bearing and is connected to the valve core extractor; the pneumatic rotor further comprises a blade, the blade is arranged in the cylinder body and at the middle part of the rotating shaft.

[0012] The compressed air enters the inside of the cylinder body through the air inlet of the rear cover, drives the blade to rotate the rotating shaft, and is discharged through the air outlet and the air outlet hole, so that the air flow is stable; meanwhile, bearings are arranged at the front and rear ends of the rotating shaft, so that the rotating shaft can rotate stably and the work efficiency is improved.

[0013] Further, the rotating shaft and the valve core extractor are detachably connected.

[0014] The valve core extractor and the rotating shaft are detachably connected, so that the valve core extractor can be replaced when damaged, and different valve core extractors can be replaced according to different valve core models, so that the universality is higher.

[0015] Further, the shell is in a Y-shaped structure as a whole, three cantilever arms of the shell are the inflation part, the deflation part and the air inlet part respectively, and a central part where the three cantilever arms intersect is a communication part; the shell is internally a hollow communication cavity, and free ends of the inflation part, the deflation part and the air inlet part are all provided with openings.

[0016] The shell is in a Y-shaped structure, which is more reasonable and compact, and the shape is easy to identify, so that the shell can be quickly found in a tool box, and the work preparation time is saved.

[0017] Further, the inflation device comprises an inflation pipe sealing ring, an outer sidewall of the inflation pipe sealing ring is in contact with or fixedly connected to an inner sidewall of the inflation part, an inflation pipe is fixedly sleeved in the inflation pipe sealing ring, and a front end of the inflation pipe extends to outside of the opening of the free end of the inflation part.

[0018] The inflation pipe sealing ring is arranged to reduce air leakage, so that air can smoothly enter the inflation pipe, and the inflation efficiency is improved.

[0019] Further, the conversion communication device comprises a conversion block, the conversion block is accommodated in the hollow cavity of the communication part, an outer sidewall of the conversion block is in circumferential contact with an inner sidewall of the communication part, an inner part of the conversion block is provided with an air pipe, two ends of the air pipe are opened on the circumferential sidewall of the conversion block, the air inlet part is communicated with the deflation part or the inflation part through the air pipe, a top surface of the communication part is provided with a central through hole, a top surface of the conversion block is connected with a connecting rod, the connecting rod extends to outside of the top surface of the communication part through the central through hole, and a free end of the connecting rod is provided with a switch knob.

[0020] The switch knob is rotated to drive the conversion block to rotate, so that the air pipe is communicated or closed to the air inlet part and the deflation part or the inflation part, and the inflation and deflation functions are switched or the inflation, deflation and air inlet channels are opened and closed.

[0021] Further, a steel ball positioning device is arranged on the inner sidewall of the communication part, the steel ball positioning device comprises a steel ball and a spring, a limiting groove is arranged on the inner sidewall of the communication part, the steel ball is limitedly accommodated in the limiting groove, the bottom surface of the limiting groove is elastically connected to the steel ball through the spring, and the steel ball can protrude or hide in the limiting groove; a positioning groove matched with the steel ball is arranged on the outer sidewall of the conversion block in a position opposite to the steel ball; a gas source pipe sealing ring is fixedly sleeved in the air inlet part, and a front end of the gas source pipe sealing ring is provided with a thread to be threadedly connected with a gas source pipe.

[0022] When the steel ball does not enter the positioning groove, it is hidden in the limiting groove, the conversion block can rotate relative to the inner wall of the communication part, when the conversion block rotates to a specific angle, the positioning groove rotates to the relative position of the steel ball with the conversion block, due to the elastic force of the spring, the steel ball protrudes from the limiting groove and enters the positioning groove, the conversion block is fixed relative to the communication part, at this time, it can be known that the conversion block has been rotated to the position, and the deflation or inflation operation can be performed; when a sufficient external force is applied to the conversion block, due to the arc shape of the steel ball and the surface of the positioning groove, the steel ball is pressed into the limiting groove again, and the conversion block can continue to rotate.

[0023] Further, one end of the threaded sleeve is sleeved on the free end of the deflation part or the inflation part through interference fit, and the other end of the threaded sleeve is provided with an internal thread and can be connected with the valve thread.

[0024] The threaded sleeve is connected with the valve thread to fix the wrench on the valve, which releases both hands, ensures that the valve core and the valve core wrench cannot be sprayed out by the air pressure, and improves safety.

[0025] Further, the threaded sleeve sleeved on the deflation part is a deflation threaded sleeve, the deflation threaded sleeve is funnel-shaped as a whole, one end of the deflation threaded sleeve with a larger diameter is sleeved on the free end of the deflation part through interference fit, one end of the deflation threaded sleeve with a smaller diameter is provided with an internal thread and can be connected with the valve thread, and the side wall of the deflation threaded sleeve is provided with an exhaust hole.

[0026] The exhaust hole is arranged on the side wall of the threaded sleeve, the internal gas of the tire directly passes through the exhaust hole and is discharged, compared with the situation that the gas enters the cylinder from the gap between the front bearing and the cylinder front cover and is discharged from the exhaust hole on the side wall of the cylinder and the exhaust hole on the side wall of the deflation part, the gas flow is more smooth, the conflict between the gas flow discharged from the tire and the gas flow in the cylinder is avoided to prevent the gas flow in the cylinder from being turbulent, and the situation that the threaded sleeve is separated from the valve wrench due to the too large instantaneous gas flow is avoided.

[0027] Compared with the prior art, the present application has the following advantages:

[0028] The multifunctional valve wrench provided by the present application has inflation and deflation functions, can be connected with a compressed air source, realizes automatic inflation and deflation by switching the connection between the inflation part and the deflation part and the valve and rotating the switch knob, is convenient to operate, does not need to manually unscrew the valve core and replace tools, can easily realize the inflation and deflation functions, improves the operation efficiency of the tire inflation and deflation, the head of one end of the wrench can be fixed on the valve to prevent the valve core and the valve core wrench from being sprayed out by the air pressure, safety is improved, the valve core extractor is detachably connected with the rotor shaft, different valve core extractors can be used according to the type of the valve, and better universality is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the drawings needed to be used in the specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0030] Figure 1 is a schematic diagram of the external structure of the multifunctional valve wrench of the present application. Figure 1 Figure 1 is a schematic diagram of the external structure of the multifunctional valve wrench of the present application.

[0031] Figure 1 is a schematic diagram of the external structure of the multifunctional valve wrench of the present application. Figure 2 Figure 1 is a schematic diagram of the external structure of the multifunctional valve wrench of the present application.

[0032] Figure 1 is a schematic diagram of the external structure of the multifunctional valve wrench of the present application. Figure 3 Figure 1 is a schematic diagram of the external structure of the multifunctional valve wrench of the present application.

[0033] Figure 4 Figure 1 is a schematic diagram of the external structure of the multifunctional valve wrench of the present application.

[0034] Figure 1 is a schematic diagram of the external structure of the multifunctional valve wrench of the present application. Figure 5 Figure 1 is a schematic diagram of the external structure of the multifunctional valve wrench of the present application.

[0035] Figure 6 Figure 1 is a schematic diagram of the external structure of the multifunctional valve wrench of the present application.

[0036] Figure 1 is a schematic diagram of the external structure of the multifunctional valve wrench of the present application.

[0037] 1 - shell, 11 - deflation part, 111 - air outlet hole, 12 - inflation part, 13 - air inlet part, 14 - communication part, 141 - center through hole, 142 - limiting groove, 2 - deflation device, 21 - cylinder body, 211 - front cover, 212 - rear cover, 2121 - air inlet, 22 - pneumatic rotor, 221 - rotating shaft, 2211 - inner spline, 222 - blade, 23 - valve core lifter, 231 - outer spline, 24 - front bearing, 25 - rear bearing, 3 - inflation device, 31 - inflation pipe sealing ring, 32 - inflation pipe, 4 - air source pipe sealing ring, 5 - conversion communication device, 51 - conversion block, 511 - air pipe, 512 - positioning groove, 52 - connecting rod, 53 - steel ball positioning device, 531 - steel ball, 532 - spring, 54 - switch knob, 6 - threaded sleeve, 7 - deflation threaded sleeve, 71 - exhaust hole. DETAILED DESCRIPTION

[0038] ​​In order to make the purposes, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application but not all of them. Based on the embodiments in the present application, any other embodiments obtained by those ordinarily skilled in the art without creative effort should fall into the scope of the present application.

[0039] The terms used in the embodiments of the present application are only for the purpose of describing particular embodiments and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0040] It should be understood that the term "and / or" used herein is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0041] It should be understood that although the terms first, second, third, etc. can be used in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the description. For example, without departing from the scope of the embodiments of the present application, the first can also be called the second, and similarly, the second can also be called the first.

[0042] Depending on the context, the word "if" as used herein can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if it is determined" or "if (a stated condition or event) is detected" can be interpreted as "when it is determined" or "in response to determining" or "when (a stated condition or event) is detected" or "in response to detecting (a stated condition or event)".

[0043] It should also be noted that the terms "comprise", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the products or devices comprising a series of elements not only include those elements, but also include other elements not explicitly listed or inherent to such products or devices. Without more limitations, the element defined by the sentence "comprises a" does not exclude the existence of other identical elements in the product or device comprising the element.

[0044] It should be particularly noted that the symbols and / or numbers present in the specification, if not marked in the description, are not the figure marks.

[0045] The embodiment 1, many modern automobile tires use screw type valve core, the tire deflates and needs to unscrew the valve core, the head of the valve core is often a protruding character, the current existing valve wrench is mostly provided with a character slot at the end of the dismounting rod, when using, the character protruding of the head of the valve core is inserted into the character slot of the dismounting rod, and the valve core is screwed out by rotating the dismounting rod to deflate; The wrench needs to be manually twisted, which is time-consuming and laborious.

[0046] Please refer to Figure 1 The embodiment provides a multifunctional valve wrench, which comprises a shell 1, the shell 1 is in Y-shaped structure as a whole, the inside is hollow to form a cavity in communication, the center of the inside of the shell 1 is a circular cavity, the inside of the three cantilever arms of the shell 1 is a tubular cavity, and the end is provided with an opening; the three cantilever arms of the shell 1 are respectively an inflation part 12, a deflation part 11 and an air inlet part 13, and the center is a communication part 14 for converting the inflation or deflation function.

[0047] Please refer to Figure 2 The deflation part 11 is provided with a deflation device 2 in the cavity, the deflation device 2 comprises a cylinder body 21, the cylinder body 21 is fixedly connected with the inner wall of the deflation part 11, the front and rear ends of the cylinder body 21 are provided with a front cover 211 and a rear cover 212, the center positions of the front cover 211 and the rear cover 212 are respectively embedded with a front bearing 24 and a rear bearing 25, the rear cover 212 is provided with an air inlet 2121, the side wall of the cylinder body 21 close to the front cover 211 is provided with an air outlet, and the shell 1 is provided with an air outlet hole 111 at the corresponding position; the inside of the cylinder body 21 contains a pneumatic rotor 22, the pneumatic rotor 22 comprises a rotating shaft 221, the two ends of the rotating shaft 221 penetrate through the front cover 211 and the rear cover 212 and are in interference fit with the two bearings respectively; the front end of the rotating shaft 221 is fixedly connected with a valve core lifter 23 penetrating through the front cover 211 and the front bearing 24, and can also be integrally formed; the middle part of the rotating shaft 221 is provided with a blade 222, airflow drives the blade 222 to drive the pneumatic rotor 22 to rotate, so as to drive the valve core lifter 23 to rotate and screw the valve core.

[0048] The inflation part 12 is internally provided with an inflation device 3, which comprises an inflation pipe sealing ring 31, the outer side wall of the inflation pipe sealing ring 31 is in contact or fixedly connected with the inner side wall of the inflation part 12, the inside of the inflation pipe sealing ring 31 is fixedly sleeved with an inflation pipe 32, and the front end of the inflation pipe 32 extends to the outside of the free end of the inflation part 12.

[0049] Preferably, the air inlet part 13 is internally fixedly sleeved with an air source pipe sealing ring 4, the front end of the air source pipe sealing ring 4 is provided with a thread, which can be threadedly connected with an air source pipe; or a thread can be directly arranged on the inner wall of the air inlet part 13 and threadedly connected with the air source pipe.

[0050] The rotation sleeve is sleeved with the conversion block 51 in the communication part 14, the outer wall of the conversion block 51 is in sliding contact with the inner wall of the communication part 14, the inner part of the conversion block 51 is provided with the air pipe 511, when the one end of the air pipe 511 is in communication with the air inlet part 13, the other end of the air pipe 511 is in communication with the air outlet part 11 or the air charging part 12.

[0051] As shown in Figure 2 and Figure 3 The inner wall of the communication part 14 is provided with the steel ball positioning device 53, two steel ball positioning devices 53 are arranged in the embodiment, and other numbers can be arranged according to the requirement, the steel ball positioning device 53 comprises the steel ball 531 and the spring 532, the inner wall of the communication part 14 is provided with the limiting groove 142, the steel ball 531 is limited and accommodated in the limiting groove 142, the bottom surface of the limiting groove 142 is connected with the steel ball 531 through the spring 532, and the steel ball 531 can protrude or hide in the limiting groove 142; the outer wall of the conversion block 51 is provided with the positioning groove 512 matched with the steel ball 531, the number of the positioning groove 512 is three in the embodiment, when the steel ball 531 enters the positioning groove 512, the conversion block 51 is fixed relative to the communication part 14 without the external force.

[0052] As shown in Figure 1 and Figure 4 The top surface of the communication part 14 is provided with the center through hole 141, the top of the conversion block 51 is connected with the connecting rod 52, the connecting rod 52 passes through the center through hole 141, the top end of the connecting rod 52 is fixedly connected or integrally formed with the switch knob 54, the conversion block 51 can be driven to rotate by rotating the switch knob 54.

[0053] The threaded sleeve 6 is further arranged at the free end of the air outlet part 11 and the air charging part 12, the threaded sleeve 6 is made of plastic material, one end of the threaded sleeve 6 is sleeved on the free end of the air outlet part 11 or the air charging part 12 through the interference fit, the other end of the threaded sleeve 6 is provided with the internal thread, and the internal thread can be connected with the valve thread.

[0054] As shown in Figure 2As shown, when using the multifunctional valve wrench to deflate, first install the valve core remover 23 of the deflation part 11 to the valve core head, and connect the threaded sleeve 6 on the deflation part 11 to the valve through the valve nozzle external thread. At this time, the valve wrench is fixed on the tire valve nozzle, rotate the switch knob 54, and then drive the conversion block 51 to rotate until the air pipe 511 inside the conversion block 51 is connected to the inflation part 13 and the deflation part 11, and the steel ball 531 of the steel ball positioning device 53 enters the positioning groove 512 on the outer sidewall of the conversion block 51. The conversion block 51 is rotated in place, the air source pipe is screwed with the air source pipe sealing ring 4, and the air source switch is opened. At this time, the compressed air is injected into the cylinder 21 through the air source pipe sealing ring 4, the air pipe 511 of the conversion block 51, and the air inlet 2121 on the rear cover 212 of the cylinder 21, pushes the blade 222 to drive the pneumatic rotor 22 to rotate, and then drives the valve core remover 23 to rotate. The valve core remover 23 twists the valve core, and when the valve core is completely rotated out, the tire internal gas enters the cylinder 21 from the gap between the front bearing 24 and the front cover 211 of the cylinder 21, and is discharged from the air outlet on the sidewall of the cylinder 21 and the air outlet hole 111 on the sidewall of the deflation part 11. Thereafter, the air source switch can be closed, the valve wrench can be removed, and the tire gas is completely discharged to complete the deflation.

[0055] Please refer to Figure 4 As shown, when using the multifunctional valve wrench to inflate, first connect the threaded sleeve 6 on the inflation part 12 to the valve through the valve nozzle external thread, align the inflation pipe 32 with the tire valve nozzle, and insert the free end of the inflation part 12 into the threaded sleeve 6 with interference fit. At this time, the valve wrench is fixed on the tire valve nozzle, the switch knob 54 is rotated, and then the conversion block 51 is rotated until the air pipe 511 inside the conversion block 51 is connected to the inflation part 12 and the deflation part 11, and the steel ball 531 of the steel ball positioning device 53 enters the positioning groove 512 on the outer sidewall of the conversion block 51. The conversion block 51 is rotated in place, the air source pipe is screwed with the air source pipe sealing ring 4, and the air source switch is opened. At this time, the compressed air is injected into the inflation pipe 32 through the air source pipe sealing ring 4 and the air pipe 511 of the conversion block 51, connected to the valve nozzle through the inflation pipe 32, and injected into the tire. After the tire is inflated to the required pressure, the air source switch is closed, the valve wrench is removed, and the inflation is completed.

[0056] Example 2, please refer to Figure 5 As shown, the multifunctional valve wrench of the present embodiment improves the connection mode of the valve core remover 23 and the rotor shaft 221 based on example 1.

[0057] Specifically, the cavity of the deflation part 11 is provided with a deflation device 2, the deflation device 2 comprises a cylinder body 21, the cylinder body 21 is fixedly connected with the inner wall of the deflation part 11, the front and rear ends of the cylinder body 21 are provided with a front cover 211 and a rear cover 212, the center positions of the front cover 211 and the rear cover 212 are respectively embedded with a front bearing 24 and a rear bearing 25, the rear cover 212 is provided with an air inlet 2121, the side wall of the cylinder body 21 close to the front cover 211 is provided with an air outlet, and the shell 1 is provided with an air outlet hole 111 at the corresponding position; the inside of the cylinder body 21 contains a pneumatic rotor 22, the pneumatic rotor 22 comprises a rotating shaft 221, the two ends of the rotating shaft 221 penetrate through the front cover 211 and the rear cover 212 and are respectively in interference fit with the two bearings; the front end of the rotating shaft 221 penetrates through the front cover 211 and the front bearing 24 and is detachably connected with a valve core extractor 23, the rotating shaft 221 and the valve core extractor 23 can be connected in a clamping, bolt connection or other manner, and the embodiment preferably adopts key connection; the connecting end of the rotating shaft 221 is provided with an inner spline 2211, and the connecting end of the valve core extractor 23 is provided with an outer spline 231, the inner spline 2211 is made of a magnet and can magnetically attract the outer spline 231, so that the connection is not easy to fall off.

[0058] The valve core extractor 23 is detachably connected with the rotating shaft 221, which is convenient for replacement when the valve core extractor 23 is damaged, and different valve core extractors 23 can be replaced according to different valve core models, so that the versatility is stronger.

[0059] Embodiment 3, please refer to Figure 6 The multifunctional valve wrench provided in the embodiment is improved on the basis of the threaded sleeve 6 on the deflation part 11 in the embodiment 1 or the embodiment 2.

[0060] Specifically, the deflation part 11 is provided with a deflation threaded sleeve 7, the deflation threaded sleeve 7 is made of plastic material, one end of the deflation threaded sleeve 7 is sleeved on the free end of the deflation part 11 in an interference fit manner, the other end of the deflation threaded sleeve 7 is provided with an inner thread and can be connected with a valve thread; the side wall of the deflation threaded sleeve 7 is provided with an exhaust hole 71, when deflating, the valve core extractor 23 twists the valve core, when the valve core is completely rotated out, the gas in the tire is directly discharged through the exhaust hole 71 in the side wall of the deflation threaded sleeve 7, compared with entering the cylinder body 21 from the gap between the front bearing 24 and the front cover 211 of the cylinder body 21 and then being discharged from the air outlet in the side wall of the cylinder body 21 and the air outlet hole 111 in the side wall of the deflation part 11, the discharge is more smooth, the conflict between the gas flow discharged from the tire and the gas flow in the cylinder body 21 is avoided to prevent the gas flow in the cylinder body 21 from being turbulent, and the situation that the threaded sleeve is separated from the valve wrench due to too large instantaneous gas flow is also avoided.

[0061] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalent features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-purpose valve wrench, characterized by comprising: The shell (1) includes a deflation part (11), an inflation part (12) and an air inlet part (13), which are communicated with each other through a communication part (14); the deflation part (11) is limitedly accommodated with a deflation device (2), the inflation part (12) is accommodated with an inflation device (3), the communication part (14) is provided with a conversion communication device (5), the deflation part (11), the inflation part (12) and the air inlet part (13) are communicated with each other through the conversion communication device, and the free ends of the deflation part (11) and the inflation part (12) are detachably connected with threaded sleeves (6). The deflation device (2) comprises a cylinder body (21), the cylinder body (21) is fixedly connected with the inner wall of the deflation part (11), the inside of the cylinder body (21) is accommodated with a pneumatic rotor (22), one end of the pneumatic rotor (22) is connected with a valve core extractor (23), and the front end of the valve core extractor (23) extends out of the opening of the free end of the deflation part (11).

2. The multi-purpose gas valve wrench of claim 1, wherein, The front and rear ends of the cylinder body (21) are provided with a front cover (211) and a rear cover (212), the center positions of the front cover (211) and the rear cover (212) are respectively embedded with a front bearing (24) and a rear bearing (25), the rear cover (212) is provided with an air inlet (2121), the side wall of the cylinder body (21) close to the front cover (211) is provided with an air outlet, and the air outlet hole (111) is arranged at the position corresponding to the air outlet on the side wall of the deflation part (11); the pneumatic rotor (22) comprises a rotating shaft (221), the two ends of the rotating shaft (221) penetrate through the front cover (211) and the rear cover (212) and are in interference fit with the front bearing (24) and the rear bearing (25) respectively; the front end of the rotating shaft (221) penetrates through the front cover (211) and the front bearing (24) and is connected with the valve core extractor (23); the pneumatic rotor (22) further comprises a blade (222), the blade (222) is accommodated in the cylinder body (21) and is arranged at the middle part of the rotating shaft (221).

3. The multi-purpose gas valve wrench of claim 2, wherein, The rotating shaft (221) and the valve core extractor (23) are detachably connected.

4. The multi-purpose gas valve wrench of claim 1, wherein, The shell (1) is in Y-shaped structure as a whole, the three cantilever arms of the shell (1) are the inflation part (12), the deflation part (11) and the air inlet part (13) respectively, and the central part where the three cantilever arms intersect is the communication part (14); the inside of the shell (1) is a hollow communication cavity, and the free ends of the inflation part (12), the deflation part (11) and the air inlet part (13) are all provided with openings.

5. The multi-purpose gas valve wrench of claim 1 wherein, The inflation device (3) comprises an inflation pipe sealing ring (31), the outer side wall of the inflation pipe sealing ring (31) is in contact or fixed connection with the inner side wall of the inflation part (12), the inflation pipe sealing ring (31) is fixedly sleeved with an inflation pipe (32) inside, and the front end of the inflation pipe (32) extends out of the opening of the free end of the inflation part (12).

6. The multi-purpose gas valve wrench of claim 1, wherein, The conversion communication device (5) comprises a conversion block (51) accommodated in the hollow cavity of the communication part (14), the outer side wall of the conversion block (51) is in circumferential rotation contact with the inner side wall of the communication part (14), the inside of the conversion block (51) is provided with a ventilation pipe (511), the two ends of the ventilation pipe (511) are opened on the circumferential side wall of the conversion block (51), the air inlet part (13) can be communicated with the air outlet part (11) or the air charging part (12) through the ventilation pipe (511); the top surface of the communication part (14) is provided with a center through hole (141), the top surface of the conversion block (51) is connected with a connecting rod (52), the connecting rod (52) extends to the outside of the top surface of the communication part (14) through the center through hole (141), and the free end of the connecting rod (52) is provided with a switch knob (54).

7. The multi-purpose gas valve wrench of claim 6, wherein, The inner side wall of the communication part (14) is provided with a steel ball positioning device (53), the steel ball positioning device (53) comprises a steel ball (531) and a spring (532), the inner side wall of the communication part (14) is provided with a limiting groove (142), the steel ball (531) is limited and accommodated in the limiting groove (142), the bottom surface of the limiting groove (142) is elastically connected with the steel ball (531) through the spring (532), and the steel ball (531) can protrude or hide in the limiting groove (142); the outer side wall of the conversion block (51) is provided with a positioning groove (512) matched with the steel ball (531); the inside of the air inlet part (13) is fixedly provided with an air source pipe sealing ring (4), and the front end of the air source pipe sealing ring (4) is provided with a thread and can be threadedly connected with an air source pipe.

8. The multi-purpose gas valve wrench of claim 1, wherein, One end of the threaded sleeve (6) is sleeved on the free end of the air outlet part (11) or the air charging part (12) through interference fit, and the other end of the threaded sleeve (6) is provided with an internal thread and can be threadedly connected with an air valve.

9. The multi-purpose gas valve wrench of claim 8, wherein, The threaded sleeve (6) sleeved on the air outlet part (11) is an air outlet threaded sleeve (7), the air outlet threaded sleeve (7) is funnel-shaped as a whole; one end of the air outlet threaded sleeve (7) with a larger diameter is sleeved on the free end of the air outlet part (11) through interference fit; the other end of the air outlet threaded sleeve (7) with a smaller diameter is provided with an internal thread and can be threadedly connected with an air valve; the side wall of the air outlet threaded sleeve (7) is provided with an air outlet hole (71).

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