Pump head with multi-stage filtering assembly

Abstract

The utility model discloses a pump head with a multi-stage filtering component, which particularly relates to the field of water quality detection and comprises a liquid inlet end flange arranged on a pump body, a filter is connected to the outer side of the liquid inlet end flange, connecting flanges are arranged at two ends of the filter, and a multi-stage filtering mechanism is mounted in the filter. A limiting ring for limiting the mounting position of the multi-stage filtering mechanism is arranged on the inner wall of the end part of the filter; the multi-stage filtering mechanism comprises a plurality of filtering assemblies which are mounted in the filter at equal intervals. According to the utility model, the water inlet end of the pump body is connected with the detachable filter, and the multi-stage filtering mechanism convenient to assemble and disassemble is additionally arranged in the filter, so that water extracted by water quality detection can be subjected to multi-stage filtering treatment conveniently, and the influence of some particulate impurities or precipitates on a detection result is reduced; a plurality of drain outlets are formed in the bottom of the filter, so that filtered impurities can be conveniently cleaned, and blockage is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality detection field more specifically, the utility model relates to a pump head with multistage filter assembly. BACKGROUND

[0002] In today's society, with the acceleration of industrialization process and the continuous influence of human activities on the environment, water quality monitoring has become an important link to protect water resources safety, maintain ecological balance and human health, before using water quality detector to detect, the water extracted usually needs to be filtered, since the water may contain suspended particles, precipitate and other impurities, these impurities will have influence on water quality detection result, through filtering treatment, can remove these impurities, ensure the accuracy of detection result, if not filtered, impurities may be mistaken for pollutants existing in water itself, leading to distorted detection result.

[0003] The existing water quality detection usually adopts water pump to extract water body to carry out sampling, however, for some water bodies containing many impurities in water, a filter is usually arranged in front of the water inlet end of the water pump during the extraction process, the common filter adopts filter screen structure, and the impurities remaining in the filter after filtration are inconvenient to clean, therefore, a structure for conveniently and quickly cleaning the impurities remaining in the filter after filtration needs to be designed. UTILITARIAN CONTENT

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a pump head with multistage filter assembly.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a pump head with multistage filter assembly, including the liquid inlet flange of setting on the pump body, the outside of liquid inlet flange is connected with filter, both ends of filter are provided with connecting flange, and the inside of filter is installed with multistage filter mechanism, and the end portion inner wall of filter is provided with the limiting ring for limiting the installation position of multistage filter mechanism;

[0006] The multistage filter mechanism includes a plurality of filter assemblies installed at equal intervals in the inside of the filter, the top portions of the plurality of filter assemblies are fixedly connected with connecting rods, the end portions of the outermost connecting rods are fixedly connected with limiting assemblies, the outer side of the end portion inner wall of the filter close to the limiting assemblies is provided with a limiting slot for limiting the limiting assemblies, the outer wall of the filter outside the limiting slot is connected with a screw rod, one end of the screw rod is fixedly connected with a knob outside the filter, the bottom of the filter close to the bottom of each filter assembly is provided with a blowdown port, and the bottom end of the filter outside each blowdown port is provided with a connecting pipe, and the end of each connecting pipe is connected with an end cover.

[0007] As a further improvement of the utility model technical scheme, the connecting flange and the liquid inlet end flange are connected through bolts, and a sealing gasket is arranged between the connecting flange and the connecting position of the liquid inlet end flange.

[0008] As a further improvement of the utility model technical scheme, the filter assembly comprises a filter screen ring frame fixedly connected to the connecting rod, and a filter screen is arranged in the filter screen ring frame.

[0009] As a further improvement of the utility model technical scheme, the limiting assembly comprises a fixed seat fixedly connected to the end of the connecting rod, a telescopic clamping column is connected to the inner side of the end of the fixed seat and inserted into the limiting clamping groove, one end of the telescopic clamping column is fixedly connected to an activity plate in the interior of the fixed seat, an activity cavity is arranged in the interior of the fixed seat and corresponds to the outer side of the activity plate, and a spring is arranged between the end of the activity plate and the inner wall of the activity cavity.

[0010] As a further improvement of the utility model technical scheme, the outer diameter of the cross section of the telescopic clamping column is smaller than the inner diameter of the limiting clamping groove, and a second sealing ring is arranged at the position corresponding to the outer side of the telescopic clamping column at the end of the fixed seat.

[0011] As a further improvement of the utility model technical scheme, an internal thread hole is arranged at the connecting position of the outer wall of the filter and the screw rod, the internal thread hole is in communication with the interior of the limiting clamping groove, and a first sealing ring is arranged at the position corresponding to the outer side of the screw rod at the outer wall of the filter.

[0012] As a further improvement of the utility model technical scheme, an external thread is arranged on the end surface of the end of the connecting pipe, an internal thread matched with the external thread structure is arranged on the inner surface of the end cover, and the end cover and the connecting pipe are connected through threads.

[0013] The utility model has the advantages of:

[0014] 1. The detachable filter is connected to the water inlet end of the pump body, the multi-stage filtering mechanism is installed in the interior of the filter and is convenient to assemble and disassemble, the water extracted for water quality detection is conveniently filtered in multiple stages, the influence of some particulate impurities or precipitates on the detection result is reduced, the installation of the multi-stage filtering mechanism is locked by the limiting assembly and the limiting clamping groove on the filter, the multi-stage filtering mechanism is kept stable, and when disassembly and cleaning are needed, the operator can conveniently take out the multi-stage filtering mechanism by rotating the knob to drive the screw rod to rotate and push the telescopic clamping column to shrink into the interior of the fixed seat again.

[0015] 2. The multi-stage filtration mechanism is equipped with multiple equidistantly installed filtration components. When conducting water quality testing and extraction, the water drawn into the pump body will pass through the multi-stage filtration mechanism in the filter and undergo multi-stage filtration treatment by multiple filtration components. During the filtration process, impurities remaining on the front side of the filtration component accumulate and fall at the sewage outlet. The operator only needs to open the end cover to quickly and easily clean the impurities accumulated at the sewage outlet to prevent blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of the installation of the utility model and the pump body.

[0017] Figure 2 This is a schematic diagram of the external structure of the installation of the utility model and the pump body.

[0018] Figure 3 For this utility model Figure 1 Enlarged view of part A.

[0019] Figure 4 It is a structural diagram of the filter in this utility model.

[0020] Figure 5 This is a structural diagram of the limit assembly in the utility model.

[0021] The accompanying drawings are marked as follows: 1. liquid inlet end flange; 2. filter; 3. connecting flange; 4. limiting ring; 5. sewage outlet; 6. connecting pipe; 7. end cover; 8. filter ring frame; 9. limiting assembly; 10. connecting rod; 11. limiting slot; 12. screw; 13. knob; 14. first sealing ring; 801. filter; 901. fixing seat; 902. telescopic column; 903. movable plate; 904. movable chamber; 905. spring; 906. second sealing ring. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] As attached Figures 1-5 The pump head with a multi-stage filter assembly shown in the figure includes a liquid inlet flange 1 provided on the pump body, a filter 2 connected to the outside of the liquid inlet flange 1, connecting flanges 3 provided at both ends of the filter 2, and a multi-stage filter mechanism installed inside the filter 2. The inner wall of the end of the filter 2 is provided with a limit ring 4 for limiting the installation position of the multi-stage filter mechanism;

[0024] The multi-stage filtering mechanism includes several filter components equidistantly installed inside the filter 2, and a connecting rod 10 is fixedly connected between the tops of the multiple filter components. The end of the outermost connecting rod 10 is fixedly connected to the limiting component 9. The inner wall of the end of the filter 2 is close to the outside of the limiting component 9 and is provided with a limiting groove 11 for limiting the limiting component 9. The outer wall of the filter 2 is located on the outside of the limiting groove 11 and is connected to a screw 12. One end of the screw 12 is located on the outside of the filter 2 and is fixedly connected to a knob 13. The bottom of the filter 2 is close to the bottom position of each filter component and is provided with a connecting pipe 6. The bottom of the filter 2 is located on the outside of each sewage outlet 5 and is provided with an end cap 7.

[0025] The connecting flange 3 and the liquid inlet end flange 1 are connected by bolts, and a sealing gasket is provided between the connecting flange 3 and the liquid inlet end flange 1 to facilitate the connection and disassembly between the filter 2 and the pump body.

[0026] As attached Figure 1 and attached Figure 4 As shown, the filter assembly includes a filter ring frame 8 fixedly connected to the connecting rod 10, and a filter screen 801 is arranged inside the filter ring frame 8 to facilitate filtering of water entering the pump body during use.

[0027] As attached Figure 1 and attached Figures 3-5 As shown, the limiting assembly 9 includes a fixing seat 901 fixedly connected to the end of the connecting rod 10, and a telescopic card column 902 inserted into the inside of the limiting card slot 11 is connected to the inner side of the end of the fixing seat 901, and one end of the telescopic card column 902 is located inside the fixing seat 901 and is fixedly connected to a movable plate 903, and an active cavity 904 is provided inside the fixing seat 901 corresponding to the outside of the movable plate 903, and a spring 905 is connected between the end of the movable plate 903 and the inner wall of the active cavity 904, and the outer diameter of the cross section of the telescopic card column 902 is smaller than the inner diameter of the limiting card slot 11, and a second sealing ring 906 is provided at the outer position of the telescopic card column 902 at the end of the fixing seat 901, so as to facilitate the multi-stage filtering mechanism to be placed in the interior of the filter 2 and locked.

[0028] As attached Figure 1 and attached Figure 3 As shown, an internal threaded hole is provided at the connection position of the outer wall of the filter 2 corresponding to the screw 12, and the internal threaded hole is connected to the interior of the limiting slot 11. A first sealing ring 14 is provided at the external position of the screw 12 corresponding to the outer wall of the filter 2, which facilitates the connection of the screw 12 on the filter 2, and further facilitates the adjustment operation when the multi-stage filtering mechanism needs to be disassembled.

[0029] As attached Figures 1-2As shown, the end outer surface of the connecting pipe 6 is provided with external threads, and the inner surface of the end cover 7 is provided with internal threads matching the external thread structure, so that the end cover 7 and the connecting pipe 6 are connected through threads, facilitating the connection and disassembly between the end cover 7 and the connecting pipe 6, and further facilitating the cleaning of impurities at the position of the pollution discharge port 5.

[0030] Working principle: the utility model discloses a pump head with multistage filtering assembly, and the specific structure is as shown in the description Figures 1-5 As shown, in the technical scheme, the detachable filter 2 is connected to the water inlet end of the pump body, the multistage filtering mechanism is additionally installed inside the filter 2, the end extension position of the multistage filtering mechanism is limited by the limiting ring 4, and the installation of the multistage filtering mechanism is locked by the limiting assembly and the limiting clamping groove 11 on the filter 2, when operating, the telescopic clamping column 902 on the limiting assembly is first pressed to shrink into the inside of the fixed seat 901, at this time, the spring 905 is in a compressed state, the multistage filtering assembly is extended to the installation position, the telescopic clamping column 902 is placed on the inside of the limiting clamping groove 11, at this time, the spring 905 is reset to push the telescopic clamping column 905 to be clamped into the inside of the limiting clamping groove 11 to realize locking, so that the multistage filtering mechanism is stably installed, when disassembly and cleaning are needed, only need to rotate the knob 13 to drive the screw rod 12 to rotate and push the telescopic clamping column 902 to shrink into the inside of the fixed seat 901 again, so that the operator can conveniently take out the multistage filtering mechanism, and a plurality of equidistantly installed filtering assemblies are arranged on the multistage filtering mechanism, when water quality detection is performed, the water drawn into the pump body will pass through the multistage filtering mechanism in the filter 2 and be subjected to multistage filtering treatment by the plurality of filtering assemblies, and the impurities accumulated on the front side of the filtering assembly fall in the position of the pollution discharge port 5 during the filtering process, so that the operator only needs to open the end cover 7 to conveniently and quickly clean the impurities accumulated in the position of the pollution discharge port, preventing blockage.

[0031] Among them, the utility model discloses an embodiment attached drawing only relates to the structure involved in the embodiment of the utility model, other structures can refer to the usual design, in the case where there is no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0032] Finally: the above only for preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A pump head with a multi-stage filter assembly, comprising a liquid inlet flange (1) provided on a pump body, characterized in that: The outer side of the liquid inlet flange (1) is connected to a filter (2), both ends of the filter (2) are provided with connecting flanges (3), and a multi-stage filtering mechanism is installed inside the filter (2), and the inner wall of the end of the filter (2) is provided with a limiting ring (4) for limiting the installation position of the multi-stage filtering mechanism; The multi-stage filtering mechanism comprises a plurality of filter assemblies equidistantly installed inside the filter (2), a connecting rod (10) is fixedly connected between the tops of the plurality of filter assemblies, the end of the outermost connecting rod (10) is fixedly connected to the limiting assembly (9), the inner wall of the end of the filter (2) is provided with a limiting groove (11) near the outside of the limiting assembly (9) for limiting the limiting assembly (9), the outer wall of the filter (2) is connected to a screw (12) located outside the limiting groove (11), one end of the screw (12) is fixedly connected to a knob (13) located outside the filter (2), the bottom of the filter (2) is provided with a sewage outlet (5) near the bottom position of each filter assembly, and the bottom end of the filter (2) is provided with a connecting pipe (6) located outside each sewage outlet (5), and the end of each connecting pipe (6) is connected to an end cap (7).

2. The pump head with a multi-stage filter assembly according to claim 1, characterized in that: The connecting flange (3) and the liquid inlet end flange (1) are connected via bolts, and a sealing gasket is provided between the connection between the connecting flange (3) and the liquid inlet end flange (1).

3. The pump head with a multi-stage filter assembly according to claim 1, characterized in that: The filter assembly comprises a filter ring frame (8) fixedly connected to a connecting rod (10), and a filter screen (801) is provided inside the filter ring frame (8).

4. The pump head with a multi-stage filter assembly according to claim 1, characterized in that: The limiting assembly (9) includes a fixing seat (901) fixedly connected to the end of the connecting rod (10), the inner side of the end of the fixing seat (901) is connected to a telescopic card column (902) inserted into the interior of the limiting card slot (11), one end of the telescopic card column (902) is located inside the fixing seat (901) and is fixedly connected to a movable plate (903), the interior of the fixing seat (901) is provided with a movable cavity (904) corresponding to the exterior of the movable plate (903), and a spring (905) is connected between the end of the movable plate (903) and the inner wall of the movable cavity (904).

5. The pump head with a multi-stage filter assembly according to claim 4, characterized in that: The outer diameter of the cross section of the telescopic clamping column (902) is smaller than the inner diameter of the limiting clamping groove (11), and a second sealing ring (906) is provided at the end of the fixing seat (901) at an outer position corresponding to the telescopic clamping column (902).

6. The pump head with a multi-stage filter assembly according to claim 1, characterized in that: An internal threaded hole is provided at a connection position of the outer wall of the filter (2) corresponding to the screw (12), and the internal threaded hole is communicated with the interior of the limiting slot (11). A first sealing ring (14) is provided at an external position of the outer wall of the filter (2) corresponding to the screw (12).

7. The pump head with a multi-stage filter assembly according to claim 1, characterized in that: The outer surface of the end of the connecting pipe (6) is provided with an external thread, and the inner surface of the end cover (7) is provided with an internal thread matching the external thread structure, and the end cover (7) and the connecting pipe (6) are connected via threads.

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