Protective assembly for metering pump

Abstract

The utility model provides a protective assembly for a metering pump, which relates to the technical field of metering pumps and comprises a pump body, the output end of the pump body is fixedly communicated with an output pipe, the input end of the pump body is fixedly communicated with an input pipe, one side of the output pipe is fixedly communicated with a branch pipe, and the inner wall of the branch pipe is in sliding connection with a first sliding block. The branch pipe is used as a buffering end, the first spring and the sliding rod are used for controlling the first sliding block to move, and when the internal pressure of the output pipe is suddenly increased, and accumulation cannot be discharged, and the internal pressure of the output pipe exceeds the force applied to the first sliding block by the first spring through the sliding rod, the first sliding block is driven to move. And if the output pipe is broken, the output pipe has the possibility of bursting at any time, at the moment, the pressure in the output pipe impacts the first sliding block to release the pressure, so that the first sliding block slides in the branch pipe to increase the total space in the output pipe, the pressure reduction effect is achieved, and bursting of the output pipe is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of metering pump especially relates to a protection assembly for metering pump. BACKGROUND

[0002] Metering pump is a kind of pump equipment of accurate control fluid flow, is widely used in chemical industry, pharmacy, beverage, environmental protection, agricultural irrigation etc., for accurately conveying and metering liquid or chemical, the metering pump of prior art is in use, since metering pump can accurately control flow, but in control, the sudden increase of flow will lead to the pressure of discharge end sudden increase, and since subsequent receiving device cannot make diversion instantly, thus can cause the inside of discharge end to accumulate a large amount of material instantly, and the pressure of sudden increase will impact the steady flow object, and then can cause the discharge end to withstand the pressure of sudden increase and burst, at this moment, a protection assembly for metering pump is needed to solve the above problems. SUMMARY

[0003] The utility model discloses a kind of protection assemblies for metering pump, to solve the problem that the discharge end of metering pump is burst in prior art.

[0004] To achieve the above object, the utility model adopts the following technical scheme: a kind of protection assembly for metering pump, including pump body, the output end of the pump body is fixedly communicated with output pipe, the input end of the pump body is fixedly communicated with input pipe, one side of the output pipe is fixedly communicated with branch pipe, the inner wall of the branch pipe is slidably connected with first sliding block, the outer surface of the first sliding block is equipped with arc slot, the inner wall of the arc slot is fixedly connected with piston sleeve, one side of the first sliding block is fixedly connected with slide rod, one end of the slide rod is slidably penetrated to the outside of branch pipe, the outer surface of the slide rod is provided with first spring, one end of the first spring is fixedly connected with one side of slide rod, the other end of the first spring is fixedly connected with one side of branch pipe.

[0005] As a preferred embodiment, the outer surface of the pump body is fixedly connected with two arc-shaped plates, one side of the arc-shaped plate is fixedly connected with support, one side of the support is fixedly connected with the outer surface of branch pipe, the bottom of the pump body is fixedly connected with supporting leg.

[0006] The bottom of the branch pipe is fixedly communicated with a connecting pipe, and the bottom of the connecting pipe is fixedly communicated with a fixed pipe.

[0007] The bottom of the fixed pipe is fixedly communicated with a discharge pipe, and one end of the discharge pipe is fixedly communicated with a collection box.

[0008] The inner wall of the connecting pipe is slidably connected with a second sliding block, the bottom of the second sliding block is fixedly connected with an elastic pipe, the bottom of the elastic pipe is fixedly connected with a fixed frame, and the outer surface of the fixed frame is fixedly connected with the inner wall of the fixed pipe.

[0009] The inside of the elastic pipe is provided with a second spring, one end of the second spring is fixedly connected with one side of the second sliding block, and the other end of the second spring is fixedly connected with the top of the fixed frame.

[0010] Compared with the prior art, the utility model has the advantages and positive effects that: through the branch pipe as the buffer end, and with the first spring and the slide rod control first sliding block removal, when the inside pressure of the output pipe increases sharply, and cannot be discharged gathering, the inside pressure of the output pipe exceeds the force that the first spring gives the first sliding block through the slide rod, then indicates that the output pipe has the possibility of bursting at any time, and the pressure in the output pipe will impact the first sliding block to release pressure, so that the first sliding block slides in the inside of the branch pipe and increases the overall space in the inside of the output pipe, and further reach the effect of reducing pressure, thereby avoiding the bursting of the output pipe, and when the inside pressure of the output pipe is released, the elastic potential energy of the first spring is also released at this time, so that the first sliding block can push the material in the inside of the branch pipe to the inside of the output pipe, through the connecting pipe, the fixed pipe and the discharge pipe constitute flow flowing mechanism, when the inside pressure of the branch pipe continuously increases and cannot be discharged, the inside pressure of the output pipe and the branch pipe is greater than the second spring, at this time, the second sliding block can be moved, so that the inside pressure of the output pipe and the branch pipe is released into the inside of the connecting pipe, the fixed pipe and the discharge pipe, and then is collected in the inside of the collection box, thereby ensuring that the output pipe will not burst, and the collection box can avoid that the toxic material is discharged into the air, so as to facilitate subsequent processing. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The utility model provides a kind of protective assembly for metering pump structure schematic view;

[0012] Figure 2 The utility model provides a kind of protective assembly for metering pump branch pipe section structure schematic view;

[0013] Figure 3 The utility model provides a kind of protective assembly for metering pump branch pipe structure section structure schematic view.

[0014] Figure 4 The utility model provides a kind of sectional view structure schematic diagram of telescopic pipe of protective assembly for metering pump.

[0015] Legend:

[0016] 1, pump body;2, output pipe;3, input pipe;4, branch pipe;5, arc plate;6, support;7, leg;8, first slider;9, piston sleeve;10, slide bar;11, first spring;12, connecting pipe;13, fixed pipe;14, telescopic pipe;15, second slider;16, fixing frame;17, discharge pipe;18, second spring;19, collection box. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] EMBODIMENT

[0019] As Figures 1-4 shown, the utility model provides a kind of technical scheme: a kind of protective assembly for metering pump, including pump body 1, the output end of pump body 1 is fixedly communicated with output pipe 2, the input end of pump body 1 is fixedly communicated with input pipe 3, the side of output pipe 2 is fixedly communicated with branch pipe 4, the inner wall of branch pipe 4 is slidably connected with first slider 8, the outer surface of first slider 8 is equipped with arc slot, the inner wall of arc slot is fixedly connected with piston sleeve 9, the side of first slider 8 is fixedly connected with slide bar 10, one end of slide bar 10 is slidably penetrated to the outside of branch pipe 4, the outer surface of slide bar 10 is provided with first spring 11, one end of first spring 11 is fixedly connected with the side of slide bar 10, the other end of first spring 11 is fixedly connected with the side of branch pipe 4;

[0020] the outer surface of pump body 1 is fixedly connected with two arc-shaped plates 5, the side of arc-shaped plate 5 is fixedly connected with support 6, the side of support 6 is fixedly connected with the outer surface of branch pipe 4, the bottom of pump body 1 is fixedly connected with leg 7;

[0021] Through the above embodiment, by the branch pipe 4 as a buffer end, and with the first spring 11 and the slide rod 10 control the first slider 8 movement, when the output pipe 2 internal pressure increases sharply, and can not be discharged when the output pipe 2 internal pressure exceeds the first spring 11 through the slide rod 10 to the first slider 8 force, then indicates that the output pipe 2 has the possibility of burst at any time, and the pressure in the output pipe 2 at this time will impact the first slider 8 to release pressure, so that the first slider 8 in the branch pipe 4 inside sliding to increase the overall space in the output pipe 2, and then achieve the effect of pressure relief, thereby avoiding the output pipe 2 burst, and when the internal pressure of the output pipe 2 is released, the elastic potential energy of the first spring 11 is also released at this time, so as to drive the first slider 8 to push the material in the branch pipe 4 to the inside of the output pipe 2;

[0022] The bottom of the branch pipe 4 is fixedly connected with a connecting pipe 12, and the bottom of the connecting pipe 12 is fixedly connected with a fixed pipe 13;

[0023] The bottom of the fixed pipe 13 is fixedly connected with a discharge pipe 17, and one end of the discharge pipe 17 is fixedly connected with a collecting box 19;

[0024] The inner wall of the connecting pipe 12 is slidably connected with a second slider 15, the bottom of the second slider 15 is fixedly connected with an extension pipe 14, the bottom of the extension pipe 14 is fixedly connected with a fixed frame 16, and the outer surface of the fixed frame 16 is fixedly connected with the inner wall of the fixed pipe 13;

[0025] The inside of the extension pipe 14 is provided with a second spring 18, one end of the second spring 18 is fixedly connected with one side of the second slider 15, and the other end of the second spring 18 is fixedly connected with the top of the fixed frame 16;

[0026] Through the above embodiment, when the pressure in the branch pipe 4 continues to increase and cannot be discharged, the pressure in the output pipe 2 and the branch pipe 4 is greater than the second spring 18, which can drive the second slider 15 to move, so that the pressure in the output pipe 2 and the branch pipe 4 is released into the inside of the connecting pipe 12, the fixed pipe 13 and the discharge pipe 17, and then collected in the inside of the collecting box 19, so as to ensure that the output pipe 2 will not burst, and the collecting box 19 can avoid the toxic material from being discharged into the air, so as to facilitate subsequent processing.

[0027] Working principle:

[0028] As Figures 1-4When the internal pressure of the output pipe 2 increases sharply and cannot be discharged, and the internal pressure of the output pipe 2 exceeds the force of the first spring 11 acting on the first sliding block 8 through the slide rod 10, it indicates that the output pipe 2 has the possibility of bursting at any time, and at this time the pressure in the output pipe 2 will impact the first sliding block 8 to release the pressure, so that the first sliding block 8 slides in the internal branch pipe 4 to increase the overall space in the output pipe 2, thereby achieving the effect of pressure reduction. When the internal pressure of the output pipe 2 is released, the elastic potential energy of the first spring 11 is also released at this time, so as to drive the first sliding block 8 to push the material in the internal branch pipe 4 to the inside of the output pipe 2. When the internal pressure of the branch pipe 4 continues to increase and cannot be discharged, the internal pressure of the output pipe 2 and the branch pipe 4 is greater than the second spring 18, which can drive the second sliding block 15 to move, so that the internal pressure of the output pipe 2 and the branch pipe 4 is released into the inside of the connecting pipe 12, the fixed pipe 13 and the discharge pipe 17, and then into the inside of the collection box 19 for collection.

[0029] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments without departing from the technical scheme of the present application, according to the technical essence of the present application, still belongs to the protection scope of the present application.

Claims

1. A protection assembly for a metering pump comprising a pump body (1), characterized in that, The output end of the pump body (1) is fixedly connected with an output pipe (2), the input end of the pump body (1) is fixedly connected with an input pipe (3), one side of the output pipe (2) is fixedly connected with a branch pipe (4), the inner wall of the branch pipe (4) is slidably connected with a first sliding block (8), the outer surface of the first sliding block (8) is provided with an arc-shaped groove, the inner wall of the arc-shaped groove is fixedly connected with a piston sleeve (9), one side of the first sliding block (8) is fixedly connected with a sliding rod (10), one end of the sliding rod (10) slidably penetrates to the outside of the branch pipe (4), the outer surface of the sliding rod (10) is provided with a first spring (11), one end of the first spring (11) is fixedly connected with one side of the sliding rod (10), the other end of the first spring (11) is fixedly connected with one side of the branch pipe (4).

2. A guard assembly for a metering pump according to claim 1, characterized in that: The outer surface of the pump body (1) is fixedly connected with two arc-shaped plates (5), one side of the arc-shaped plate (5) is fixedly connected with a support (6), one side of the support (6) is fixedly connected with the outer surface of the branch pipe (4), the bottom of the pump body (1) is fixedly connected with a supporting leg (7).

3. A guard assembly for a metering pump according to claim 2, characterized in that: The bottom of the branch pipe (4) is fixedly connected with a connecting pipe (12), the bottom of the connecting pipe (12) is fixedly connected with a fixed pipe (13).

4. A guard assembly for a metering pump according to claim 3, characterized in that: The bottom of the fixed pipe (13) is fixedly connected with a discharge pipe (17), one end of the discharge pipe (17) is fixedly connected with a collecting box (19).

5. A guard assembly for a metering pump according to claim 3, characterized in that: The inner wall of the connecting pipe (12) is slidably connected with a second sliding block (15), the bottom of the second sliding block (15) is fixedly connected with a telescopic pipe (14), the bottom of the telescopic pipe (14) is fixedly connected with a fixing frame (16), the outer surface of the fixing frame (16) is fixedly connected with the inner wall of the fixed pipe (13).

6. A guard assembly for a metering pump according to claim 5, characterized in that: The inside of the telescopic pipe (14) is provided with a second spring (18), one end of the second spring (18) is fixedly connected with one side of the second sliding block (15), the other end of the second spring (18) is fixedly connected with the top of the fixing frame (16).

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