Spraying pump with air suction prevention device

Abstract

The utility model relates to the technical field of spraying pumps, in particular to a spraying pump with an air suction prevention device, which comprises a spraying pump body, a water outlet pipe and a water inlet pipe, the outer side of the water inlet pipe is sleeved with a connecting block, the outer side of the connecting block is provided with two mounting blocks with the same size, the inner sides of the mounting blocks are fixedly connected with a filter screen, and the filter screen is fixedly connected with the water inlet pipe. A connecting block is arranged at one end of the filter screen, a sliding groove is formed in the side, close to the connecting block, of the mounting block, and a plurality of clamping grooves with the same size are formed in the side, close to the mounting block, of the connecting block, According to the filter screen, through the structure composed of the mounting block, the filter screen, the connecting block and the like, when the filter screen needs to be cleaned or replaced, the mounting block which is not attached to the connecting block is pushed, and then the filter screen can be cleaned or replaced. According to the filter screen cleaning device, the filter screen and the connecting block are driven by the mounting block attached to the connecting block to slide relative to each other, and when the clamping block of the mounting block which is not attached to the connecting block is clamped with the clamping groove, pushing of the mounting block is stopped, so that the filter screen can be cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of spray pumps, in particular to a spray pump with an anti-air suction device. Background Art

[0002] Hydroxypropyl methylcellulose, also known as hydroxypropyl methylcellulose and cellulose hydroxypropyl methyl ether, is made from highly pure cotton cellulose as raw material and is specially etherified under alkaline conditions. In the production process of hydroxypropyl methylcellulose, a spray pump is used. A filter screen is installed in the spray pump. The filter screen can filter some impurities such as leaves and plastic bags in the water collection tank to one side to prevent them from being sucked in by the spray pump, thereby ensuring the normal operation of the spray system and facilitating the cleaning of the filtered impurities. At the same time, the filter screen can also prevent the cooling tower from being sucked in during operation.

[0003] The filter screen needs to be cleaned regularly during use. It is common to shut down the spray pump for a long time when cleaning or replacing the filter screen, which reduces the use efficiency of the spray pump. Therefore, a spray pump with an anti-air suction device is proposed to address the above problem. Utility Model Content

[0004] The utility model aims to provide a spray pump with an anti-air suction device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A spray pump with an anti-air suction device comprises a spray pump body, a water outlet pipe and a water inlet pipe, the outer side of the water inlet pipe is sleeved with a connecting block, the top and bottom of the connecting block are fixedly connected with first magnets of equal size, the outer side of the first magnet is provided with a second magnet, the outer side of the second magnet is fixedly connected with an elastic protective sleeve with a U-shaped cross-section, two mounting blocks of equal size are provided on the outer side of the connecting block, the inner side of the mounting block is fixedly connected with a filter screen, a sliding groove is provided on the side of the mounting block close to the connecting block, a spring is provided on the inner side of the sliding groove, a clamping block is slidably connected to the inner side of the sliding groove, a plurality of clamping grooves of equal size are provided on the side of the connecting block close to the mounting block, a plurality of first screw holes of equal aperture size are provided on the inner side of the connecting block, and a plurality of second screw holes of equal aperture size are provided on the inner side of the mounting block.

[0007] Preferably, the aperture size of the first screw hole is equal to the aperture size of the second screw hole, and the first screw hole and the second screw hole are symmetrically arranged one by one.

[0008] Preferably, one side of the card block is arc-shaped, and the arc-shaped side of the card block fits with the inner wall of the card slot.

[0009] Preferably, two ends of the spring are fixedly connected to the clamping block and the inner wall of the sliding groove, and the clamping groove is evenly and symmetrically arranged.

[0010] Preferably, the elastic protective sleeves are symmetrically arranged, and the connecting block is fixedly connected to the water inlet pipe.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, through the structure composed of the installation block, the filter screen and the connecting block, when the filter screen needs to be cleaned or replaced, the installation block that is not in contact with the connecting block is pushed, so that the installation block in contact with the connecting block drives the filter screen and the connecting block to slide relative to each other, and when the clamping block of the installation block that is not in contact with the connecting block is engaged with the clamping groove, the pushing of the installation block is stopped, and then the bolts are passed through the second screw hole and the first screw hole in sequence to limit the new installation block, so that the filter screen can be cleaned, and the spray pump with an anti-air suction device can replace the filter screen without stopping the spray pump body or stopping it for a very short time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall front view structure of the utility model;

[0015] Figure 3 For this utility model Figure 2 A schematic diagram of the structure at A;

[0016] Figure 4 This is a structural schematic diagram of the connection block of the utility model;

[0017] Figure 5 It is a schematic diagram of the structure of the elastic protective sleeve of the utility model.

[0018] In the figure: 1. spray pump body; 2. water outlet pipe; 3. water inlet pipe; 4. connecting block; 5. mounting block; 6. first magnet; 7. second magnet; 8. elastic protective sleeve; 9. filter; 10. sliding groove; 11. spring; 12. clamping block; 13. clamping groove; 14. first screw hole; 15. second screw hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0022] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0023] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0024] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0025] See also Figure 1-5 , the utility model provides a technical solution:

[0026] A spray pump with an anti-air suction device comprises a spray pump body 1, a water outlet pipe 2 and a water inlet pipe 3, a connecting block 4 is sleeved on the outer side of the water inlet pipe 3, a first magnet 6 of equal size is fixedly connected to the top and bottom of the connecting block 4, a second magnet 7 is arranged on the outer side of the first magnet 6, an elastic protective sleeve 8 with a U-shaped cross-section is fixedly connected to the outer side of the second magnet 7, two mounting blocks 5 of equal size are arranged on the outer side of the connecting block 4, a filter screen 9 is fixedly connected to the inner side of the mounting block 5, a sliding groove 10 is provided on the side of the mounting block 5 close to the connecting block 4, a spring 11 is arranged on the inner side of the sliding groove 10, a clamping block 12 is slidably connected to the inner side of the sliding groove 10, a plurality of clamping grooves 13 of equal size are provided on the side of the connecting block 4 close to the mounting block 5, a plurality of first screw holes 14 of equal aperture size are provided on the inner side of the connecting block 4, and a plurality of second screw holes 15 of equal aperture size are provided on the inner side of the mounting block 5.

[0027] The aperture size of the first screw hole 14 is equal to the aperture size of the second screw hole 15, and the first screw hole 14 and the second screw hole 15 are symmetrically arranged one by one, so that the bolt can pass through the second screw hole 15 and the first screw hole 14 in sequence to limit the new mounting block 5; one side of the block 12 is arc-shaped, and one side of the arc-shaped block 12 fits the inner wall of the slot 13, so that the block 12 can cooperate with the slot 13 to work; both ends of the spring 11 are fixedly connected to the block 12 and the inner wall of the sliding groove 10, and the slot 13 is evenly and symmetrically arranged, so that the positioning of the spring 11 is achieved, so that the spring 11 can be used in conjunction with the block 12; the elastic protective sleeve 8 is symmetrically arranged, and the connecting block 4 is fixedly connected to the water inlet pipe 3, so that the elastic protective sleeve 8 can dustproof the filter screen 9 and achieve the positioning of the connecting block 4.

[0028] Working process: In the process of producing hydroxypropyl methylcellulose, a spray pump body 1 is used. During use, the spray pump body 1 takes in water from the water inlet pipe 3 and discharges water from the water outlet pipe 2. When taking in water from the water inlet pipe 3, it will first be filtered and prevented from sucking in air by the filter screen 9. A lot of impurities will be attached to the filter screen 9, so the filter screen 9 needs to be cleaned or replaced regularly. When the filter screen 9 needs to be replaced, the first magnet 6 set at the bottom of the connecting block 4 is disengaged from the second magnet 7 fixedly connected to the elastic protective sleeve 8, so that the elastic protective sleeve 8 no longer protects and limits the installation block 5 that is not in contact with the connecting block 4, and pushes the installation block 5 that is not in contact with the connecting block 4, so that the installation block 5 in contact with the connecting block 4 drives the filter screen 9 and the connecting block 4 to slide relative to each other. During the sliding process, the original card block 12 will first be separated from the card slot 13, the original block 12 is acted upon by the connecting block 4 to slide in the sliding groove 10, and the block 12 will squeeze the spring 11. When the block 12 of the mounting block 5 that was not originally fitted with the connecting block 4 is fitted with the slot 13, stop pushing the mounting block 5, and then pass the bolts through the second screw hole 15 and the first screw hole 14 in sequence to limit the new mounting block 5, and then disengage the first magnet 6 set on the top of the connecting block 4 from the second magnet 7 fixedly connected to the elastic protective sleeve 8, so that the filter screen 9 can be cleaned. After cleaning, the elastic protective sleeve 8 is fitted on the outside of the mounting block 5 through the fitting of the first magnet 6 and the second magnet 7 to prevent dust from being applied, thereby realizing the ability of the spray pump with an anti-air suction device to replace the filter screen 9 without shutting down the spray pump body 1 or shutting down for a very short time.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spray pump with an anti-vacuum device, comprising a spray pump body (1), a water outlet pipe (2) and a water inlet pipe (3), characterized in that: The outer side of the water inlet pipe (3) is sleeved with a connecting block (4); the top and bottom of the connecting block (4) are fixedly connected with first magnets (6) of equal size; the outer side of the first magnet (6) is provided with a second magnet (7); the outer side of the second magnet (7) is fixedly connected with an elastic protective sleeve (8) with a U-shaped cross section; the outer side of the connecting block (4) is provided with two mounting blocks (5) of equal size; the inner side of the mounting block (5) is fixedly connected with a filter screen (9); a sliding groove (10) is provided on a side of the mounting block (5) close to the connecting block (4); a spring (11) is provided on the inner side of the sliding groove (10); a clamping block (12) is slidably connected to the inner side of the sliding groove (10); a plurality of clamping grooves (13) of equal size are provided on a side of the connecting block (4) close to the mounting block (5); a plurality of first screw holes (14) of equal diameter are provided on the inner side of the connecting block (4); and a plurality of second screw holes (15) of equal diameter are provided on the inner side of the mounting block (5).

2. A spray pump with an anti-vacuum device according to claim 1, characterized in that: The diameter of the first screw hole (14) is equal to the diameter of the second screw hole (15), and the first screw hole (14) and the second screw hole (15) are arranged in a one-to-one symmetry.

3. The spray pump with an anti-vacuum device according to claim 1, characterized in that: One side of the clamping block (12) is arc-shaped, and the arc-shaped side of the clamping block (12) fits against the inner wall of the clamping slot (13).

4. The spray pump with an anti-vacuum device according to claim 1, characterized in that: The two ends of the spring (11) are fixedly connected to the clamping block (12) and the inner wall of the sliding groove (10), and the clamping groove (13) is evenly and symmetrically arranged.

5. The spray pump with an anti-vacuum device according to claim 1, characterized in that: The elastic protective sleeves (8) are symmetrically arranged, and the connecting block (4) is fixedly connected to the water inlet pipe (3).

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