TWM458495U - Pressure display device of inflation machine with safety relief - Google Patents

Description

Inflator pressure display device with safety relief

The present invention is an inflator pressure display device with a safety pressure relief, in particular, an inflator located in an inflator is provided with a gas chamber, and the air chamber is provided with at least two air outlets respectively connected with a first gas pipe and a first The second gas pipeline is connected to the pressure display device by the first gas pipeline, and the second gas pipeline is used for inflating the gas to be inflated; and the pressure display device is linearly moved by the compression elasticity of the elastic member as a plate body. Reaction force (zero return force source); relative to the air pressure generated by the air chamber of the inflator, the distance of the linear movement of the plate body is expressed as the air pressure value; if the inflation pressure exceeds the highest set pressure When the inflation pressure is released through the pressure relief hole provided by the hollow tube body of the pressure display device, the excess pressure is released to protect the inflator and the inflated person of the inflated body.

Nowadays, many machines or equipments are generally equipped with mechanical pressure gauges, which are used to measure and display the pressure value. In addition, when measuring the pressure of the gas, it is also used to detect the pressure value in the conveying pipeline or the storage container. Use a mechanical pressure gauge.

Most of the mechanical pressure gauges are made by the principle of the Burden Tube. The Baden tube mechanical pressure gauges are mainly used for pressure expansion and deformation by the Baden tube. In the rotation of the pointer, the two types of pressure expansion and pressure release are used as the principle of pressure indication. Moreover, the mechanical pressure gauge of the traditional Baden tube type is mainly composed of an intake seat and a plurality of gear sets. , rods, return springs, pointer shafts and other components, which will be One end of the tube is connected to the pull rod, and the other end is connected to the air inlet; when the gas enters the Baden tube from the air inlet, the Baden tube will be inflated and begin to deform under pressure; at the same time, the rod is also affected. The lever acts on the gear set to drive the pointer shaft, and the body rotates the indicator needle; otherwise, when the pressure disappears, the Baden tube returns to its original state, and the pointer shaft returns the indicator needle to the zero state by returning the spring wire. A pressure gauge is achieved as a measure of pressure.

However, the conventional Baden tubular mechanical pressure gauges, because of the Baden tube, the gear set, the return force spring and other components, are relatively precise and vulnerable components. The more the precision components, the more the cost is required. High; secondly, the Baden tube and the return spring wire are susceptible to external temperature (cold or hot) and humidity, indirectly changing their original expansion coefficient or elastic characteristics, resulting in the accuracy of the measurement pressure losing its accuracy; The gear set must rely on the exact meshing tooth position as the transmission. The higher the precision of the meshing gear position relative to the gear, the higher the cost required; therefore, when the pressure gauge is accidentally dropped or collided, It often causes the gear teeth of the gear set to produce an error or gap, which causes the indicator pin to be biased, run, or has unstable beating when the pressure changes. This is a mechanical type of the traditional Baden tube type. Pressure gauges have common disadvantages.

In addition, as far as the manufacturer's pressure gauge manufacturing surface is concerned, due to the high precision of components and matching, the consequent defective products will inevitably increase, and the problems of assembly and processing, such as slow and difficult, are directly or indirectly affected. Production costs and the number of good products, this is a problem that is well to be overcome by conventional pressure gauges.

According to the technical field implemented in this case, and explore the inflator of the inflator, except for the fitting and application of the pressure gauge, it is an important part that cannot be excluded; the other necessary design is the safety relief required for inflation. Machine parts; simply speaking, the inflator machine should be able to comply with the safety regulations, the design of the pressure relief function is inevitable, on the one hand, in addition to protecting the main parts of the inflator from continuous overload and ultra-high pressure damage, On the other hand, it can protect the inflation of the inflated body; however, the safety design of this is completely focused on when the inflator continuously and continuously inflates the inflated object; once it reaches the inflated object, it can withstand it. When the critical pressure value is Damage and injury to the explosiveness of the anger; therefore, the inflator of the learner is often invested heavily in the pressure relief valve mechanism and carefully selected high-precision pressure relief valve components to safely inflate the inflator. With the safety of pressure relief.

In view of the above discussion and analysis, the main purpose of this creation is to provide a pressure display device for aerator with safety relief, which mainly combines the pressure display device with the pressure relief safety function, and then cooperates with the inflator to form a more durable one. Pressure indication and a safer pressure relief method to achieve a combination of durability, low cost and double effect.

The pressure display device of the present invention comprises: a linearly moving plate body and an elastic component, and a scale is arranged on the displacement path of the plate body, and the scale is provided with a scale, and the compression elasticity of the elastic component acts as a reaction force for linear movement of the plate body. (Return to zero reset force source); relative to the air pressure generated in the gas chamber of the gas-filling mechanism, the distance for pushing the plate body to move linearly is the function of indicating the air pressure pressure value to achieve accurate measurement of the pressure value, and further Completely break through the pressure gauges that are costly, not durable and subject to many factors.

If the inflation pressure exceeds the critical pressure or the maximum set pressure, the inflation pressure will release the excess pressure through the pressure relief hole provided in the hollow tube body of the pressure display device to protect the inflator and the inflated body. Inflatable safety.

Another object of the present invention is to provide an inflator pressure display device with a safe pressure relief device, the pressure display device being connectable with an inflator of an inflator, and the inflator is located above the piston cylinder with a gas chamber, the air chamber is provided There are at least two gas outlets respectively connected to the first gas pipe and the second gas pipe, wherein: the first gas pipe is connected to the pressure display device, and the second gas pipe is supplied for inflation; the first The gas pipeline is configured to convey the air pressure to the pressure display device, so that the air pressure can be pushed to the linear movement distance of the plate body to represent the air pressure value, so as to accurately measure the pressure in the gas chamber of the inflation mechanism.

1‧‧‧ Pressure display device

11‧‧‧ hollow body

12‧‧‧ sheath

121‧‧‧Perforation

13‧‧‧Intake joint

131‧‧‧air inlet

14‧‧‧ push block

141‧‧‧ card slot

15‧‧‧ board

16‧‧‧Flexible components

17‧‧‧Instructions

18‧‧‧ ruler

19‧‧‧Relief hole

2‧‧‧Inflatable body

21‧‧‧ cylinder

22‧‧‧ air chamber

221‧‧‧ air outlet

222‧‧‧ air outlet

23‧‧‧Piston putter

24‧‧‧ Gear Set

3‧‧‧ drive

31‧‧‧ fan leaves

4‧‧‧The first gas pipeline

5‧‧‧Second gas pipeline

6‧‧‧Inflator

61‧‧‧ windows

7‧‧‧ Cover

The first figure is a schematic diagram of an appearance embodiment of the present inflator.

The second figure is a schematic diagram of a setting embodiment of the present pressure display device.

Fig. 3 is a schematic view showing another embodiment of the inflator of the present inflator.

The fourth picture is a schematic diagram of the decomposition of the pressure display device.

Figure 5: This is a schematic diagram of the combined profile and actuation of the pressure display device (1).

Figure 6: This is a schematic diagram of the combined profile and actuation of the pressure display device (2).

In order to make it easier for your examiner to understand the other features and advantages of this creation and the effects achieved by it, this article is combined with the drawings to describe in detail the features and advantages of this creation. The following examples are further The present invention is described in detail, but does not limit the scope of the present invention in any way.

Please refer to the first, second, third, fourth and fifth figures. The present invention discloses a pressure display device for an inflator. The pressure display device 1 can be disposed in an inflator 6; wherein: the pressure display device 1 has A hollow tube body 11 is respectively provided with a sheath 12 and an air inlet joint 13 at two ends of the hollow tube body 11. The sheath 12 is provided with a through hole 121, and the air inlet joint 13 is provided with a hollow tube body extending therefrom. 11 an outer air inlet 131; and a push block 14 is disposed between the inner portion of the hollow tube 11 and the outer sleeve 13 and the outer edge of the push block 14; and the outer edge of the push block 14 has a function of good air tightness; The push block 14 is connected to a strip-shaped plate body 15 . One end of the plate body 15 is correspondingly provided with a through hole 121 exposed to the sheath 12 . Further, the inside of the hollow tube body 11 is opposite to the sheath 12 and the push block 14 . Further, an elastic member 16 is disposed, and the elastic member 16 can be a spring and can be disposed around the outside of the plate body 15; secondly, the hollow tube body 11 defines a pressure relief hole 19 at the wall of the tube. The position of the pressure relief hole 19 should be consistent with the pressure setting value or the highest pressure bearing value of the inflated body, which needs to be elastic. 16 The generated elastic body converts the displacement path distance of the plate body 15 to be the most suitable position for opening the pressure relief hole 19, as shown in the sixth figure; in addition, the plate body 15 is exposed at the position of the through hole 121 of the sheath 12. An indicator member 17 may be provided. Further, the outer portion of the hollow tube body 11 is located on the displacement path of the plate body 15, and a scale 18 is provided, and the scale 18 is provided with a scale, as shown in the second figure.

Therefore, the air pressure can enter the hollow tube body 11 through the air inlet 131 of the air inlet joint 13 , and is displaced by the pressing force on the push block 14 and the plate body 15 , and is synchronously compressed on the elastic member 16 . The push block 14, the plate body 15 and the elastic member 16 are caused to move linearly in the hollow tubular body 11; otherwise, when the air pressure is removed, the push block 14 is subjected to the reaction force of the elastic member 16 to be reset, so that the push block 14 and the plate can be made. The body 15 is reset to zero; thus, the pressure display device 1 can be used as a linear force for the linear movement of the push block 14 and the plate body 15 by the compressive elasticity of the elastic member 16, so that the air pressure is pushed linearly between the push block 14 and the plate body 15. Moving, so as to be able to observe the distance moved by the plate 15 relative to the scale 18, that is, the pressure value indicating the pressure, to accurately measure the gas pressure; if the air pressure exceeds the set critical pressure or the highest set pressure When the pushing block 14 is displaced and exceeds the position where the pressure releasing hole 19 is opened, the air pressure is transmitted through the pressure releasing hole 19 of the hollow pipe body 11 to release the excess pressure, thereby protecting the inflator from being inflated. Inflatable safety of objects; As shown in FIG.

When the plate body 15 is moved relative to the scale 18, the indicator member 17 can be guided by the indicator member 17, so that the user can clearly know that the plate body 15 is at the scale position of the scale 18.

The push block 14 and the plate body 15 can be integrally formed, or the push block 14 and the plate body 15 are connected by two independent components; and in the present embodiment, a push slot is provided in the push block 14. 141, in which the plate body 15 is relatively fixed in the card slot 141 of the push block 14, so that the plate body 15 moves synchronously with the push block 14.

The pressure display device 1 of the present invention can be disposed in an inflator 6, the inflator 6 includes: an inflating mechanism 2 and a driving device 3, the pressure display device 1 and the inflator 6 The inflating mechanism 2 is connected, wherein the inflating mechanism 2 has a cylinder 21, a gas chamber 22 is disposed at one end of the cylinder 21, and the air chamber 22 is provided with at least two air outlets 221, 222, and the first air delivery pipe 4 and the second are respectively connected The gas pipe 5 is provided with a piston push rod 23 at the other end of the cylinder 21, and the piston push rod 23 is connected with the gear set 24; secondly, one end of the driving device 3 is connected with the gear set 24 of the inflator 2, and the other end is provided. There is a leaf 31.

The driving device 3 drives the gear set 24 to rotate, and then the piston push rod 23 is actuated by the gear set 24, so that the gas generated by the inflator 2 can flow into the first air pipe through the air outlets 221 and 222 of the air chamber 22, respectively. 4 and a second gas pipe 5; by which the first gas pipe 4 is connected to the inlet joint 13 of the pressure display device 1, and the second gas pipe 5 can be extended to be used for inflation (for example, tires, Balls or inflatable appliances, etc.; not shown in the figure), such that the air pressure generated by the inflator 2 or the external pressure is reversely applied (ie, when the pressure is measured or the external pressure is greater than the set pressure, the pressure relief may be implemented) The pressure value can be accurately measured by moving the pressure of the plate 15 of the pressure display device 1 relative to the scale 18 through the gas chamber 22 and the first gas delivery pipe 4 to the pressure display device 1. The pressure value.

Secondly, the air outlets 221 and 222 of the air chamber 22 of the inflating mechanism 2 can be independent passages (as shown in FIG. 2); or the common passages of the air outlets 221 and 222 can be formed in a divergent manner (as shown in FIG. 3). Show), forming an equivalent structural effect.

Furthermore, the inflator 6 can be provided with a window 61 in its housing, and the window 61 corresponds to the scale 18 of the pressure display device 1, so that the user can know the pressure value through the window 61; A cover 7 is provided; in addition, the present invention can further provide a light-emitting element (not shown) around the scale 18 of the pressure display device 1 to form a scale 18 backlight mode to provide the user with a night or dim environment.

In summary, this creation has achieved the desired effect under the previous technical structure, and it is not the one with the usual knowledge in the technical field. The former technology can be easily completed, and a new type of patent application is filed according to law. You are required to approve the new patent application case to encourage creation.

The detailed description above is a specific description of a possible embodiment of the present invention, and the embodiment is not intended to limit the present invention, and equivalent implementations or modifications that are not departing from the spirit of the present invention should be included in the present case. In the scope of patents.

1‧‧‧ Pressure display device

11‧‧‧ hollow body

13‧‧‧Intake joint

15‧‧‧ board

17‧‧‧Instructions

18‧‧‧ ruler

19‧‧‧Relief hole

2‧‧‧Inflatable body

21‧‧‧ cylinder

22‧‧‧ air chamber

221‧‧‧ air outlet

222‧‧‧ air outlet

23‧‧‧Piston putter

24‧‧‧ Gear Set

3‧‧‧ drive

31‧‧‧ fan leaves

4‧‧‧The first gas pipeline

5‧‧‧Second gas pipeline

Claims (6)

An inflator pressure display device with a safety pressure relief device, the pressure display device is disposed on an inflator, the inflator includes an inflating mechanism, wherein the inflating mechanism has a gas chamber, and the air chamber is provided with at least two The air port is respectively connected with a first gas pipe and a second gas pipe, and the first gas pipe is connected to the pressure display device; and the second gas pipe can be extended to be inflated for use by the gas inflated body; The pressure display device is provided with a scale outside, and the pressure display device has a hollow tube body, and a pressure relief hole is arranged on the wall surface of the hollow tube body, and a sheath and an air inlet joint are respectively disposed at the two ends thereof, and the sheath is provided a perforation, the air inlet joint is provided with an air inlet extending outside the hollow tube body and connected to the first air pipe; and a push block is arranged between the inner portion of the hollow tube body and the air inlet joint. The push block is connected with a strip-shaped plate body, and one end of the plate body is correspondingly provided with a perforation exposed to the sheath; further, an inner part of the hollow tube body is further provided with an elastic element between the sheath and the push block; and the scale Relative position Displacement path of the plate. The inflator pressure display device with safety relief according to claim 1, wherein the elastic member is a spring and can be disposed around the outside of the plate body. The inflator pressure display device according to claim 2, wherein the plate is exposed to the perforated end of the sheath to provide an indicator. The inflator pressure display device according to claim 1, wherein the scale is provided with a scale, and a light-emitting element is disposed around the scale. The inflator pressure display device with safety relief according to claim 1, wherein the two air outlets of the air chamber can be independent passages. An inflator pressure display device with safety relief according to claim 1, wherein the air chamber The second air outlet can be a split type and has a common passage.