Bladder type compressed fluid pump

Abstract

The invention discloses a bag type compression fluid pump which comprises an output channel and an input channel which are mutually independent, one-way valves are arranged in the output channel and the input channel, the output channel and the input channel are in through connection through a variable container, and the bag type compression fluid pump further comprises a driving mechanism used for driving the variable container to deform. The hydraulic cylinder can keep high-efficiency operation for a long time, saves energy due to no piston friction, is free of pollution emission, is lower in noise, and has the characteristics of long service life and capability of adapting to various environments, especially oil-free environments to work.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid pumps, in particular to a bladder type compressed fluid pump. Background Art

[0002] A pump is a mechanical device that converts the mechanical energy of a prime mover into the kinetic energy of a fluid medium in order to transport the fluid medium or pressurize it. It is widely used in agriculture, chemical industry, mining and metallurgy, electric power, national defense and military industry, urban and municipal engineering and other industries. It is one of the most widely used general-purpose machines in the national economy.

[0003] The working principle of a compressed fluid pump is to suck the fluid from the inlet, reduce the volume of the fluid through compression, and discharge the high-pressure fluid. The main types include: piston compression pumps, vane compression pumps, etc. With the continuous development of the global economy and the rise of emerging markets, the demand for compression pumps will continue to grow. Especially in the fields of energy, petrochemicals, construction, etc., with the continuous advancement of technology and the expansion of market scale, the application of compression pumps will become more extensive.

[0004] The piston compression pump uses the reciprocating motion of the piston in the container to cause the working volume in the container to change periodically, thereby achieving the suction, compression and discharge of the fluid.

[0005] However, in the actual use of piston compression pumps, since it is necessary to maintain the reciprocating motion of the piston to realize the fluid transportation, this will generate a lot of friction and wear. On the one hand, it will cause heat and serious energy consumption, thereby reducing the service life of the equipment. Therefore, in actual application, it is necessary to equip it with higher-demand heat dissipation measures; on the other hand, it will generate friction noise. Since the noise source comes from inside the pump, it is impossible to isolate and reduce the noise from the noise source. If it is isolated from the outside, it is difficult to implement noise reduction operations due to the existence of the transportation pipeline.

[0006] In addition, if the piston wears severely to a certain extent, it will also cause the piston cylinder to leak, greatly reduce the conveying efficiency, and seriously affect the life of the equipment; and during the friction process of the piston, the piston material will produce debris falling off due to wear, and the falling debris will contaminate the medium in the pump body; since the piston compression pump is an open fluid conveying method, it cannot guarantee that the conveyed fluid has no contact with the outside world, so it may cause the conveyed fluid to be contaminated by the outside world, and it may also cause the conveyed fluid to contaminate the outside world.

[0007] As environmental protection and sustainable development become the focus of global attention, manufacturers of compressed fluid pumps will pay more attention to the high efficiency and energy saving, pollution emission and noise problems of compressed fluid pumps to achieve cleaner and more environmentally friendly operation.

[0008] Therefore, in order for the compressed fluid pump to better cope with more intense competition, the present application proposes a bladder-type compressed fluid pump that is widely used and has more advantages in low pollution and energy-saving performance. Summary of the invention

[0009] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a bladder-type compressed fluid pump which can maintain efficient operation for a long time and is energy-saving, pollution-free, has lower noise, has a long service life, and can adapt to a variety of environments, especially oil-free environments.

[0010] In order to achieve the above object, the present invention provides the following technical solutions: The bladder type compressed fluid pump comprises an output channel and an input channel which are independent of each other, wherein both the output channel and the input channel are provided with a one-way valve, the output channel and the input channel are connected through a variable container, and further comprises a driving mechanism for driving the variable container to produce deformation.

[0011] Through the above structure, a compression fluid pump is constructed which can maintain efficient operation for a long time, and is energy-saving, pollution-free, and has lower noise. It has the characteristics of long service life and can adapt to a variety of environments, especially oil-free environments.

[0012] Preferably, the variable container is an overall deformable capsule structure.

[0013] Through the above structure, the compressed fluid pump has better working efficiency and better noise reduction performance.

[0014] Preferably, the travel direction of the variable container when deformed is linear, and the pushing distance of the driving mechanism does not exceed the travel direction of the variable container when deformed.

[0015] Through the above structure, under the condition of ensuring that the compressed fluid pump will not fail during operation, the manufacturing cost is lower and the production process and implementation during use have better feasibility.

[0016] Preferably, the driving mechanism comprises a motor and a wheel connected to the motor shaft head, one end of the variable container is rotatably connected to a push rod, and the other end of the push rod is rotatably connected to an eccentric position on the wheel.

[0017] Through the above structure, a relatively economical and easy-to-implement driving method is constructed to provide the required deformation for the variable container, which has the advantages of low noise, easy implementation of noise isolation measures and convenient maintenance and repair.

[0018] Preferably, a plurality of push rods are rotatably connected to the wheel, and each of the push rods corresponds to a variable container.

[0019] Through the above structure, the efficiency of fluid transportation can be further improved in a driving mode that is more economical, has low noise and is easy to maintain and overhaul, thereby meeting the necessary conditions for adapting to a wider range of application fields.

[0020] Preferably, the output channel and the input channel are both detachably connected to the variable container.

[0021] Through the above structure, if any of the components of the output channel and the output channel variable container has problems such as aging, it is easy to disassemble for maintenance. At the same time, such a connection method also makes it easier to implement in production and manufacturing.

[0022] Preferably, the variable container is a semi-open structure, the radial sections of the input channel and the output channel are flange-shaped, and also includes two clamping plates, which are detachably connected to the input channel and the output channel at both ends from the inside of the variable container.

[0023] Through the above structure, under the condition of relatively simple structure, the variable container is easier to assemble with the input channel and the output channel, and is also convenient for disassembly and assembly during maintenance and repair.

[0024] Preferably, the output channel and the input channel are both connected to the side surface of the variable container in the non-stroke direction.

[0025] Through the above structure, the installation positions of the output channel, the input channel and the variable container are changed, so that the compressed fluid pump can adapt to more different application scenarios.

[0026] Preferably, one of the output channel and the input channel is connected in the non-stroke direction of the variable container, and the other is connected in the stroke direction of the variable container.

[0027] Through the above structure, the installation positions of the output channel, the input channel and the variable container are changed, so that the compressed fluid pump can adapt to more different application scenarios.

[0028] Preferably, the one-way valve comprises a spring sheet, which is connected to the surfaces of the input channel and the output channel, and blocks the input channel and the output channel when the spring sheet is not deformed.

[0029] Through the above structure, a one-way valve structure with a very simple structure is constructed, and it can quickly respond to the pressure changes in the variable container to deform in time, and then quickly switch the blocking state of the input channel and the output channel.

[0030] Preferably, one end of the spring sheet is detachably connected to the input channel and the output channel.

[0031] The above structure makes it easier to perform maintenance and repair of the shrapnel.

[0032] Preferably, a cover body is detachably connected to a side of the output channel away from the variable container, an output pipe is arranged on the surface of the cover body, and the cover body is hollow to communicate with the delivery channel and the output pipe.

[0033] Through the above structure, a modular compressed fluid pump structure is constructed, which allows users to select and assemble it by themselves when applied to different scenarios and implementation site conditions, thereby having better adaptability.

[0034] Compared with the prior art, the present invention has the following beneficial effects: a compression fluid pump is constructed which can maintain efficient operation for a long time, has no pollution emissions, and has lower noise; it has a long service life and can adapt to a variety of environments, especially to work in oil-free environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A top view of the structure of the capsule type compressed fluid pump proposed by the present invention; Figure 2 This is a structural cross-sectional view of the bladder type compressed fluid pump proposed by the present invention, mainly showing the state when the variable container is compressed; Figure 3 This is a structural cross-sectional view of the capsule type compressed fluid pump proposed by the present invention, mainly showing the state when the variable container is stretched; Figure 4 for Figure 2 The enlarged schematic diagram at A in the middle mainly shows the state of the spring when it is opened; Figure 5 This is a schematic diagram of the explosion structure of the bladder type compressed fluid pump proposed by the present invention; Figure 6 It is a schematic diagram of the structure of the bladder type compressed fluid pump proposed by the present invention when two push rods are installed; Figure 7 This is a schematic diagram of the structure of the capsule type compressed fluid pump proposed by the present invention when four push rods are installed; Figure 8 This is a schematic diagram of the structure of Example 2 of the bladder type compressed fluid pump proposed by the present invention; Fig. 9 This is a schematic diagram of the structure of Example 2 of the bladder type compressed fluid pump proposed by the present invention; Fig.10 This is a schematic diagram of the structure of Example 2 of the bladder type compressed fluid pump proposed by the present invention; Fig.11 This is a schematic structural diagram of Example 3 of the bladder-type compressed fluid pump proposed in the present invention.

[0036] In the figure: 1. input channel; 2. output channel; 3. one-way valve; 31. spring; 4. variable container; 41. clamping plate; 5. driving mechanism; 51. motor; 52. wheel; 53. push rod; 6. cover body; 61. output pipe; 7. fluid storage container; 8. carrier. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1: See also Figure 1-7 The present invention provides the following technical solution: a bladder-type compressed fluid pump, including an output channel 2 and an input channel 1 that are independent of each other, each of which is provided with a one-way valve 3, the output channel 2 and the input channel 1 are connected through a variable container 4, and also includes a driving mechanism 5 for driving the variable container 4 to deform.

[0039] As an optional implementation scheme of the present invention, before use, the output channel 2 and the driving mechanism 5 are fixed in position to ensure that the variable volume function of the variable container 4 is effective. When the drive mechanism 5 is running, the variable container 4 begins to deform. When the volume of the variable container 4 is reduced, the internal pressure of the variable container 4 increases, which makes the one-way valve 3 in the output channel 2 switch to a through state, which allows the fluid inside the variable container 4 to enter the output channel 2 and flow out; when the pressure inside the variable container 4 decreases, or the drive mechanism 5 stops running and runs in the reverse direction so that the volume of the variable container 4 remains unchanged or increases, the one-way valve 3 in the output channel 2 switches to a closed state, and the fluid does not flow into the output channel 2; when the drive mechanism 5 runs in a manner opposite to the above, the volume of the variable container 4 increases, and at this time both the one-way valves 3 are in a closed state, which makes the internal pressure of the variable container 4 negative pressure, which makes the one-way valve 3 located in the input channel 1 switch to a through state, so that the fluid can pass through the input channel 1 and enter the variable container 4. When the pressure in the variable container 4 increases, or the drive mechanism 5 stops running and runs in the forward direction so that the volume of the variable container 4 remains unchanged or decreases, the one-way valve 3 in the input channel 1 switches to a closed state. Thus, by reciprocating the driving mechanism 5, the volume of the variable container 4 is switched back and forth between increasing and decreasing states, so that the fluid can be transported from the outside of the input channel 1 to the outside of the output channel 2 in a unidirectional flow, thereby having the basic fluid transport function of the pump.

[0040] During the entire conveying process, since the input channel 1 and the output channel 2 are connected only by the variable container 4, the entire conveying process of the fluid will not come into contact with the external environment, which prevents the fluid to be conveyed from being contaminated; and the output channel 2 and the input channel 1 are independent of each other. Due to the variable volume property of the variable container 4, under the condition that the external driving mechanism 5 provides the variable container 4 with the required driving force for deformation, both friction and wear will only exist outside the fluid, and there is no need for oil or other media that are easy to pollute the environment to transmit power. Therefore, for some applications that need to be applied in an oil-free environment (such as liquid delivery in the medical field), it is more reliable. Compared with the traditional plunger-type compression fluid pump, this fluid pump obviously does not have the situation of pollution emission, and it is also more convenient to repair; As for noise pollution, the noise source only comes from the drive mechanism 5 itself, and the drive mechanism 5 is located outside the fluid transport, so it is easier to implement noise isolation measures. According to noise analysis, the noise source of the piston compression pump mainly comes from the friction of the piston, as well as the turbulence and eddy current generated when the fluid moves. The present technical solution as a whole does not have a piston, and compared with the traditional one-piece or hard structure pump body structure, the variable container 4 is either a soft material, such as some polymer materials, or is composed of multiple parts flexibly connected. According to the common sense of sound generation and sound transmission, hard materials are more likely to transmit vibration (i.e. sound), while soft materials or flexible connection methods can reduce vibration due to their own elastic damping and / or porous structure, or convert sound energy into heat energy due to the viscous resistance of the air and the vibration friction between the air and the hole wall. Therefore, the present technical solution adopts the variable container 4, which itself has the function of noise reduction. Under the condition of no friction, the problem of noise pollution can be significantly reduced.

[0041] It is worth noting that the above-mentioned variable container 4 only refers to a container whose volume can be changed due to the change of its shape. All containers with this property, such as the subsequent capsule structure, or the above-mentioned container composed of multiple parts connected flexibly, should be considered to be within the protection scope of the variable container 4. In addition, for the driving mechanism 5, in fact, any mechanism that drives the shape of the variable container 4 to change back and forth can be implemented, such as the subsequent motor 51 plus eccentric wheel, or the existing reciprocating motion mechanism such as the electric push rod 53, or even an electromagnet with switchable magnetic poles, and there is no limitation on the position where the driving mechanism 5 acts on the variable container 4. In fact, this can also be adaptively adjusted according to the actual situation and the implementation conditions of the specific site.

[0042] Through the above structure, a compression fluid pump is constructed which can maintain efficient operation for a long time, and is energy-saving, pollution-free, and has lower noise. It has the characteristics of long service life and can adapt to a variety of environments, especially oil-free environments.

[0043] like Figure 1-3 As shown, the variable container 4 is an overall deformable capsule structure.

[0044] As an optional implementation scheme of the present invention, the counterpart of overall deformability is local deformability. In fact, the deformation of the variable container 4 can be either local deformation or overall deformation.

[0045] However, the variable container 4 that is partially deformed is not as efficient as the one that is fully deformed because of the smaller volume change. It should also be noted that if only partial deformation occurs, the variable container 4 itself needs to have at least two kinds of materials, namely, a non-deformable hard part and a deformable soft part (or a flexibly connected deformable part). As mentioned above, hard materials are more likely to transmit noise, so the variable container 4 that is partially deformed is inevitably not as effective as the fully deformable solution in solving the noise problem.

[0046] According to its literal meaning, the bladder structure should be understood as a container that can hold fluid and is made of soft materials, which may include an air bag, a liquid bag, etc., and is a container that cannot leak fluid.

[0047] Through the above structure, the compressed fluid pump has better working efficiency and better noise reduction performance.

[0048] like Figure 1-3 As shown, the travel direction of the variable container 4 when deformed is linear, and the pushing distance of the driving mechanism 5 does not exceed the travel direction of the variable container 4 when deformed.

[0049] As an optional embodiment of the present invention, the travel direction of the variable container 4 when deforming can actually be in various forms, such as arc, wave, broken line, etc. However, in terms of manufacturing cost, production process and implementation conditions during use, it is generally believed that the linear deformation is the most commonly used deformation mode. Figure 1-3 The variable container 4 shown has a wavy surface structure (it can also be identified as multiple hard ring structures, and adjacent hard ring structures are connected by flexible structures, so that it has extensibility only in the straight direction). When compressed, it will only stack along the straight direction, and when stretched, it will only unfold along the straight line, thereby realizing the variable volume property. Its advantage is that when the driving mechanism 5 is running, the variable container 4 will not move in other directions, thereby ensuring that the pressure change inside the variable container 4 is stable, thereby ensuring the fluid delivery efficiency during operation.

[0050] If the pushing stroke of the driving mechanism 5 exceeds the stroke of the variable container 4, it will inevitably cause damage to at least the driving mechanism 5 itself and the variable container 4. Therefore, it is necessary to ensure that the compressed fluid pump will not fail during operation.

[0051] Through the above structure, under the condition of ensuring that the compressed fluid pump will not fail during operation, the manufacturing cost is lower and the production process and implementation during use have better feasibility.

[0052] like Figure 1 and Figure 5 As shown, the driving mechanism 5 includes a motor 51 and a wheel 52 connected to the shaft head of the motor 51 . One end of the variable container 4 is rotatably connected to a push rod 53 , and the other end of the push rod 53 is rotatably connected to an eccentric position on the wheel 52 .

[0053] As an optional implementation scheme of the present invention, when the driving mechanism 5 is running, the motor 51 drives the wheel 52 to rotate, thereby driving the push rod 53 to rotate at the eccentric position on the wheel 52, thereby pushing one end of the variable container 4 to achieve the deformation of the variable container 4, and with the rotation of the motor 51, the stroke of the push rod 53 is reciprocating, so the deformation of the variable container 4 can be reciprocated. For this implementation scheme, the structure is relatively simpler, and each rotating connection can be realized by a common bearing, so the reciprocating motion of the push rod 53 itself has the advantages of less friction and low noise, and the entire driving mechanism 5 is independent of the variable container 4, the input channel 1, and the output channel 2, and the noise isolation measures are also easy to implement, and it is also convenient for maintenance and repair.

[0054] Through the above structure, a relatively economical and easy-to-implement driving method is constructed to provide the variable container 4 with the required deformation, which has the advantages of low noise, easy implementation of noise isolation measures and convenient maintenance and repair.

[0055] like Figure 6-7 As shown, a plurality of push rods 53 are rotatably connected to the wheel 52 , and each push rod 53 corresponds to a variable container 4 .

[0056] As an optional implementation scheme of the present invention, since the travel direction of the variable container 4 is limited to a linear type, and the eccentric driving method of the variable container 4 makes the same wheel 52 have the implementation conditions for installing multiple push rods 53, then it is possible to install multiple push rods 53 on the same wheel 52 to simultaneously drive multiple variable containers 4 to deform. Those skilled in the art can further change the design of the travel sequence of each push rod 53 and connect all the output channels 2 together to achieve the purpose of continuous fluid supply.

[0057] Through the above structure, the efficiency of fluid transportation can be further improved in a driving mode that is more energy-saving, low-noise and easy to maintain and overhaul, thereby meeting the necessary conditions for adapting to a wider range of application fields.

[0058] like Figure 2-4 As shown, the output channel 2 and the input channel 1 are both detachably connected to the variable container 4 .

[0059] As an optional implementation scheme of the present invention, the detachable connection should be understood as a design scheme in which the output channel 2 and the variable container 4 of the output channel 2 can be separated from each other. This connection method makes it easy to disassemble for maintenance if any of the components has problems such as aging. At the same time, this connection method also makes it easier to implement in production and manufacturing.

[0060] Through the above structure, any component of the output channel 2 or the variable container 4 of the output channel 2 can be easily disassembled for maintenance if it has problems such as aging. At the same time, such a connection method also makes it easier to implement in production and manufacturing.

[0061] like Figure 2-3 As shown, the variable container 4 is a semi-open structure, the radial sections of the input channel 1 and the output channel 2 are flange-shaped, and also includes two clamping plates 41, which are detachably connected to the input channel 1 and the output channel 2 at both ends from the inside of the variable container 4.

[0062] As an optional implementation scheme of the present invention, the semi-open structure of the variable container 4 can be understood as a container with an opening at one end, which makes it possible to install the clamping plate 41 with the input channel 1 and the output channel 2 respectively from the inside of the variable container 4; and the flange-type input channel 1 and the output channel 2 are common pipeline connection methods, which makes it easy to put the pump into the fluid transportation scene for use, and also facilitates the fixation of the output channel 2 in the scene before use, thereby making it feasible for the variable container 4 to deform under the action of the driving mechanism 5.

[0063] Among them, the opening part on the variable container 4 can be assembled with the output channel 2 or the input channel 1, but the clamping plate 41 is required to seal the edge of the opening to ensure that the fluid to be transported does not contact the outside.

[0064] Through the above structure, under the condition of a relatively simple structure, the variable container 4 is easier to assemble with the input channel 1 and the output channel 2, and is also convenient for disassembly and assembly during maintenance and repair.

[0065] like Figure 2-5As shown, the one-way valve 3 includes a spring piece 31 , which is connected to the surface of the input channel 1 and the output channel 2 , and blocks the input channel 1 and the output channel 2 when the spring piece 31 is not deformed.

[0066] As an optional implementation scheme of the present invention, the one-way valve 3 is actually a relatively mature prior art. In fact, various one-way valves 3 can also be applied to the aforementioned technical scheme. The one-way valve 3 in the form of a spring 31 is simpler in structure, and can respond quickly to the pressure changes in the variable container 4 to deform in time, and then quickly switch the blocking state of the input channel 1 and the output channel 2. The connection method of the spring 31 can be integrally formed, welded, or detachably connected. The material and connection method of the spring 31 are not specifically limited in this technical scheme, and those skilled in the art can also add components such as rubber pads to the surface of the spring 31 close to the input channel 1 or the output channel 2 to improve the sealing effect and reduce the impact noise generated when the spring 31 is reset.

[0067] Through the above structure, a one-way valve 3 structure with a very simple structure is constructed, and it can quickly respond to the pressure changes in the variable container 4 to deform in time, and then quickly switch the blocking state of the input channel 1 and the output channel 2.

[0068] like Figure 2-5 As shown, one end of the spring piece 31 is detachably connected to the input channel 1 and the output channel 2 .

[0069] As an optional implementation scheme of the present invention, as mentioned above, since the compressed fluid pump can adapt to different scenarios, the compressed fluid pump will also have different specifications with great differences, so the actual selection and application of the shrapnel 31 may be different. In some scenarios, especially in scenarios where long-term continuous fluid delivery is required, this may result in the service life of the shrapnel 31 used not being able to be long. For example, there is corrosion in the scenario where it is used, and the current material technology makes it difficult to make this shrapnel 31 have very good corrosion resistance and elasticity at the same time, which will lead to the need for regular maintenance and replacement, so the detachable method makes maintenance and repair operations easier to carry out.

[0070] It should be understood that the specific detachable connection method of the spring clip 31 may preferably be a threaded method, or other detachable structural methods may be used, or even a modular spring clip 31 may be constructed to better complete the assembly.

[0071] The above structure makes it easier to perform maintenance and repair of the spring piece 31 .

[0072] like Figure 1-5As shown, the side of the output channel 2 away from the variable container 4 can be detachably connected to a cover body 6 , and an output pipe 61 is provided on the surface of the cover body 6 . The cover body 6 is hollow inside to communicate with the delivery channel and the output pipe 61 .

[0073] As an optional implementation scheme of the present invention, the cover body 6 directly covers the entire flange-shaped output channel 2 after installation, so that the fluid to be transported is completely contained by the cover body 6 after flowing out through the spring piece 31 to prevent leakage. For the output pipe 61 on the cover body 6, its specific outflow direction is not limited. The detachable connection between the cover body 6 and the output channel 2 and the flange-shaped structure of the output channel 2 can make the present compressed fluid pump conform to the modular design concept. When applied to different scenarios and implementation site conditions, it can be assembled by itself, so as to have better adaptability.

[0074] Through the above structure, a modular compressed fluid pump structure is constructed, which allows users to select and assemble it by themselves when applied to different scenarios and implementation site conditions, thereby having better adaptability.

[0075] Embodiment 2: Compared with the technical solution in Example 1, the difference is: like Figure 8-9 As shown, the output channel 2 and the input channel 1 are both connected to the side of the variable container 4 in the non-stroke direction.

[0076] As an optional implementation scheme of the present invention, in certain specific cases, for example, due to installation scenario factors, the input channel 1 and the output channel 2 may not be directly arranged at two symmetrical ends of the variable container 4, so it is necessary to deform the installation positions of the output channel 2 and the input channel 1 and the variable container 4.

[0077] Specifically, the output channel 2 and the input channel 1 are installed on the same side of the variable container 4, the travel direction of the variable container 4 is perpendicular to the conveying direction of the fluid in the variable container 4, and the output channel 2 and the input channel 1 are fixed in the application scenario before use.

[0078] For this method, if Figure 8-9 As shown, it is equivalent to that the input and output of the fluid are on the same side of the variable container 4. It is more suitable for the installation position of the pump to be closer to the fluid storage container 7. At this time, the entire variable container 4 and the driving mechanism 5 can be located outside the fluid storage container 7, so it is also easier to inspect and maintain.

[0079] Specifically, the output channel 2 and the input channel 1 are installed on the same side of the variable container 4, the travel direction of the variable container 4 is parallel to the conveying direction of the fluid in the variable container 4, and the end of the variable container 4 away from the driving mechanism 5 is fixed in the application scenario.

[0080] This method is actually similar to the above method, except that Fig.10 As shown, when the output channel 2 and the input channel 1 are both located at the corners of the fluid storage container 7, and the input and output positions are close, and the drive mechanism 5 does not have a wider installation condition, then the drive mechanism 5 needs to be installed along the surface of the fluid storage container 7.

[0081] Through the above structure, the installation positions of the output channel 2, the input channel 1 and the variable container 4 are changed, so that the compressed fluid pump can adapt to more different application scenarios.

[0082] Embodiment 3: Compared with the technical solution in Example 1, the difference is: like Fig.11 As shown, one of the output channel 2 and the input channel 1 is connected in the non-stroke direction of the variable container 4 , and the other is connected in the stroke direction of the variable container 4 .

[0083] As an optional embodiment of the present invention, as described in Example 2, there may be certain specific situations. For example, the compressed fluid pump is used as an additional product for transporting fluid in a fixed-point fluid storage container 7, such as pumping water, transporting fluid in a mobile tank truck, etc. In these cases, there is no need to assemble any structure on the compressed fluid pump with the fluid storage container 7.

[0084] Of course, the implementation methods in Example 1 and Example 2 can also be used in this case, but with the help of a separate carrier 8 such as a trolley, one of the output channel 2 and the input channel 1 is fixed on the carrier 8, and then when the other is located in the non-stroke direction of the variable container 4, it is more convenient to connect with the fluid storage container 7 to complete the above-mentioned task.

[0085] Through the above structure, the installation positions of the output channel 2, the input channel 1 and the variable container 4 are changed, so that the compressed fluid pump can adapt to more different application scenarios.

[0086] The working principle and use process of the present invention: Before use, the output channel 2 and the driving mechanism 5 are fixed in position to ensure that the variable volume function of the variable container 4 is effective. When the drive mechanism 5 is running, the variable container 4 begins to deform. When the volume of the variable container 4 is reduced, the internal pressure of the variable container 4 increases, which makes the one-way valve 3 in the output channel 2 switch to a through state, which allows the fluid inside the variable container 4 to enter the output channel 2 and flow out; when the pressure inside the variable container 4 decreases, or the drive mechanism 5 stops running and runs in the reverse direction so that the volume of the variable container 4 remains unchanged or increases, the one-way valve 3 in the output channel 2 switches to a closed state, and the fluid does not flow into the output channel 2; when the drive mechanism 5 runs in a manner opposite to the above, the volume of the variable container 4 increases, and at this time both the one-way valves 3 are in a closed state, which makes the internal pressure of the variable container 4 negative pressure, which makes the one-way valve 3 located in the input channel 1 switch to a through state, so that the fluid can pass through the input channel 1 and enter the variable container 4. When the pressure in the variable container 4 increases, or the drive mechanism 5 stops running and runs in the forward direction so that the volume of the variable container 4 remains unchanged or decreases, the one-way valve 3 in the input channel 1 switches to a closed state. Thus, by reciprocating the driving mechanism 5, the volume of the variable container 4 is switched back and forth between increasing and decreasing states, so that the fluid can be transported from the outside of the input channel 1 to the outside of the output channel 2 in a unidirectional flow, thereby having the basic fluid transport function of the pump.

[0087] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bladder type compressed fluid pump, comprising an output channel and an input channel which are independent of each other, wherein both the output channel and the input channel are provided with a one-way valve, characterized in that: The output channel and the input channel are connected through a variable container, and also include a driving mechanism for driving the variable container to deform.

2. The bladder type compressed fluid pump according to claim 1, characterized in that: The variable container is an overall deformable capsule structure.

3. The bladder type compressed fluid pump according to claim 2, characterized in that: The travel direction of the variable container when deformed is linear, and the pushing distance of the driving mechanism does not exceed the travel direction of the variable container when deformed.

4. The bladder type compressed fluid pump according to claim 3, characterized in that: The driving mechanism comprises a motor and a wheel connected to the motor shaft head; one end of the variable container is rotatably connected to a push rod, and the other end of the push rod is rotatably connected to an eccentric position on the wheel.

5. The bladder type compressed fluid pump according to claim 4, characterized in that: A plurality of push rods are rotatably connected to the wheel, and each push rod corresponds to a variable container.

6. The bladder type compressed fluid pump according to claim 3, characterized in that: The output channel and the input channel are both detachably connected to the variable container.

7. The bladder type compressed fluid pump according to claim 6, characterized in that: The variable container is a semi-open structure, the radial sections of the input channel and the output channel are flange-shaped, and also includes two clamping plates, which are detachably connected to the input channel and the output channel at both ends from the inside of the variable container.

8. The bladder type compressed fluid pump according to claim 2, characterized in that: The one-way valve comprises a spring sheet, which is connected to the surfaces of the input channel and the output channel, and blocks the input channel and the output channel when the spring sheet is not deformed.

9. The bladder type compressed fluid pump according to claim 8, characterized in that: One end of the spring piece is detachably connected to the input channel and the output channel.

10. The bladder type compressed fluid pump according to claim 1, characterized in that: The side of the output channel away from the variable container can be detachably connected with a cover body, the surface of the cover body is provided with an output pipe, and the cover body is hollow to communicate with the conveying channel and the output pipe.

Images