A cold water meter with easy filter replacement

Abstract

The utility model discloses a cold water meter which is convenient for replacing a filter screen, comprising a cold water meter, wherein the left end of the cold water meter is connected with a fixed sleeve, and an electric push rod, a rack, a gear, a turntable, a filter screen, a slider and a pressure sensor are arranged. During the use of the device, when the filter screen in the device is blocked, the slider is pushed to compress the first spring to a greater extent after the water pressure on the filter screen increases, and the force of the pressure block pressing the pressure sensor is further increased. When the pressure value sensed by the pressure sensor exceeds the set range to determine that the bottom filter screen is blocked, the electric push rod is extended to drive the bracket to drive the rack to mesh with the gear, and the fixed shaft further drives the filter screen in the turntable to rotate 180 degrees, thereby realizing automatic replacement of the filter screen without affecting the use of the device. Because there is no need to remove the device from the external water pipe connection end, the operation is time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of cold water meters, in particular to a cold water meter which is convenient for replacing a filter screen. Background Art

[0002] A water meter is an instrument for measuring water flow, most of which measure the cumulative flow of water. It is generally divided into two categories: a volumetric water meter and a velocity water meter. It originated in the United Kingdom and has a history of nearly two hundred years. When selecting the specifications of a water meter, the size and range of the flow rate used under normal circumstances should be estimated first, and then the water meter with the specification whose commonly used flow rate is closest to the value should be selected as the first choice. Water meters can be divided into cold water meters and hot water meters according to the medium temperature. When using existing cold water meters, in order to prevent a large amount of impurities such as mud and sand in the water from entering the cold water meter and causing damage to the water meter, it is necessary to install a corrosion-resistant filter in front of the cold water meter to protect the cold water meter. Since the filter will be blocked after long-term use, it is necessary to replace the filter regularly. The existing replacement method is mostly to remove the water meter and manually take out the filter in the connection end for replacement. The operation is time-consuming and labor-intensive, and the filter cannot be replaced without affecting the use of the water meter. Therefore, in view of the above problems, a cold water meter that is easy to replace the filter is proposed. Utility Model Content

[0003] The technical problem to be solved by the utility model overcomes the existing defects and can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A cold water meter for facilitating replacement of a filter, comprises a cold water meter, a fixed sleeve is connected to the left end of the cold water meter, a connecting pipe is connected to the left bottom end of the fixed sleeve, a fixed shaft that penetrates the fixed sleeve is rotatably connected to the inner side of the fixed sleeve, a turntable rotatably connected to the fixed sleeve is fixedly connected to the outer side of the fixed shaft, a filter is slidably connected to the inner side of the turntable, a fixed box that is fixedly connected to the fixed sleeve is rotatably connected to the right end of the outer side of the fixed shaft, an electric push rod is fixedly connected to the top end of the fixed box, a bracket that is slidably connected to the fixed box is fixedly connected to the bottom end of the electric push rod, a rack is fixedly connected to the inner side of the bracket, a gear that is fixedly connected to the fixed shaft is meshedly connected to the outer side of the rack, and a controller is fixedly connected to the top right side of the fixed sleeve.

[0006] As a further improvement of the utility model, the right end of the filter screen is in contact with a slider slidably connected to the turntable, the right end of the slider is fixedly connected to a first spring, the other end of the first spring is fixedly connected to a pressure block in contact with the turntable, and the outer side of the pressure block is fixedly connected to a pressure sensor in contact with the turntable.

[0007] As a further improvement of the utility model, control switches are fixedly connected to the upper and lower ends of the inner side of the fixed box, and the control switch at the top is in contact with the bracket, and a micro alarm is fixedly connected to the top of the fixed sleeve.

[0008] As a further improvement of the present invention, the top left side of the fixed sleeve is rotatably connected to a baffle via a rotating shaft, the top outer side of the baffle is spirally connected to a bolt that penetrates the baffle, and the bolt is spirally connected to the fixed sleeve, the bottom end of the controller is provided with a fixed cover that is connected to the fixed sleeve, the inside of the fixed cover is fixedly connected to a second spring, the other end of the second spring is fixedly connected to a slide plate that is slidably connected to the fixed cover, and the left end of the slide plate is fixedly connected to a push block that penetrates the fixed cover.

[0009] As a further improvement of the utility model, the push block is arranged in a frustum shape, and the push block contacts the filter screen at the top.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. A cold water meter that is easy to replace a filter. The electric push rod, rack, gear, turntable, filter, slider and pressure sensor are arranged. When the filter in the device is blocked during use, the slider is pushed to compress the first spring to a greater extent after the water pressure on the filter increases, and the force of the pressure block pressing the pressure sensor is further increased. When the pressure value sensed by the pressure sensor exceeds the set range to determine that the bottom filter is blocked, the electric push rod is extended to drive the bracket to drive the rack to engage the gear, and the fixed shaft further drives the filter in the turntable to rotate 180 degrees, thereby realizing automatic replacement of the filter without affecting the use of the device. Because there is no need to remove the device from the external water pipe connection end, the operation is time-saving and labor-saving.

[0012] 2. A cold water meter that is easy to replace a filter. Through the baffle, the second spring, the slide plate and the push block, after the filter is replaced, the bolt is turned to disengage the spiral connection with the fixing sleeve, and then the baffle is opened. Then, the slide plate is pushed by the second spring in a compressed state, and the push block arranged in a cone shape further pushes the used filter, so that the used filter can be pushed out of the device, thereby facilitating the removal of the used filter for cleaning and recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of a cold water meter that is easy to replace the filter screen.

[0015] Figure 2 The utility model is a schematic cross-sectional structure diagram of a cold water meter which is convenient for replacing a filter screen.

[0016] Figure 3 The utility model is a cold water meter that is easy to replace the filter screen Figure 2 Schematic diagram of the structure at point A.

[0017] In the figure: 1. cold water meter; 2. fixing sleeve; 3. connecting pipe; 4. fixing shaft; 5. turntable; 6. filter screen; 7. slider; 8. first spring; 9. pressure block; 10. pressure sensor; 11. fixing box; 12. electric push rod; 13. bracket; 14. rack; 15. gear; 16. control switch; 17. micro alarm; 18. baffle; 19. bolt; 20. fixing cover; 21. second spring; 22. slide plate; 23. push block; 24. controller. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with specific implementation methods, wherein the accompanying drawings are only used for exemplary descriptions and represent only schematic diagrams rather than actual drawings, and cannot be understood as limitations on this patent. In order to better illustrate the specific implementation methods of the utility model, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. Based on the specific implementation methods in the utility model, all other specific implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] Example 1

[0020] like Figure 1-3 As shown, a cold water meter for facilitating replacement of a filter screen comprises a cold water meter 1, wherein the left end of the cold water meter 1 is connected with a fixed sleeve 2, the left bottom end of the fixed sleeve 2 is connected with a connecting pipe 3, the inner side of the fixed sleeve 2 is rotatably connected with a fixed shaft 4 penetrating the fixed sleeve 2, the outer side of the fixed shaft 4 is fixedly connected with a turntable 5 rotatably connected to the fixed sleeve 2, the inner side of the turntable 5 is slidably connected with a filter screen 6, the outer right end of the fixed shaft 4 is rotatably connected with a fixed box 11 fixedly connected to the fixed sleeve 2, the top end of the fixed box 11 is fixedly connected with an electric push rod 12, the bottom end of the electric push rod 12 is fixedly connected with a bracket 13 slidably connected to the fixed box 11, the inner side of the bracket 13 is fixedly connected with a rack 14, the outer side of the rack 14 is meshingly connected with a gear 15 fixedly connected to the fixed shaft 4, and the right top end of the fixed sleeve 2 is fixedly connected with a controller 24.

[0021] Example 2

[0022] like Figure 2 As shown, in order to solve the problem of being inconvenient to determine when to automatically replace the bottom filter 6, the right end of the filter 6 contacts with a slider 7 that is slidably connected to the turntable 5, the right end of the slider 7 is fixedly connected to a first spring 8, the other end of the first spring 8 is fixedly connected to a pressure block 9 that contacts the turntable 5, and the outer side of the pressure block 9 is fixedly connected to a pressure sensor 10 that contacts the turntable 5. Because the more serious the blockage of the filter 6 is, the greater the water resistance it encounters, the greater the degree to which the filter 6 pushes the slider 7 to compress the first spring 8, and the greater the force of the pressure block 9 to press the pressure sensor 10. Therefore, when the pressure value sensed by the pressure sensor 10 exceeds the set range, it is convenient to determine when to automatically replace the bottom filter 6.

[0023] Example 3

[0024] like Figure 2-3 As shown, in order to solve the problem of being inconvenient to remind the user to take out the replaced filter 6 for cleaning, the upper and lower ends of the inner side of the fixed box 11 are fixedly connected with control switches 16, and the control switch 16 at the top is in contact with the bracket 13, and the top of the fixed sleeve 2 is fixedly connected with a micro alarm 17. After replacing the filter 6, the bracket 13 triggers the control switch 16 at one end of the inner side of the fixed box 11, and further activates the micro alarm 17, which makes it convenient to remind the user to take out the replaced filter 6 for cleaning.

[0025] Example 4

[0026] like Figure 1-2 As shown, in order to solve the problem that it is inconvenient to take out the replaced filter 6 for cleaning, the top left side of the fixed sleeve 2 is rotatably connected to a baffle 18 through a rotating shaft, and the top outer side of the baffle 18 is spirally connected to a bolt 19 that penetrates the baffle 18, and the bolt 19 is spirally connected to the fixed sleeve 2, and the bottom end of the controller 24 is provided with a fixed cover 20 connected to the fixed sleeve 2, and the inner side of the fixed cover 20 is fixedly connected to a second spring 21, and the other end of the second spring 21 is fixedly connected to a slide plate 22 that is slidably connected to the fixed cover 20, and the left end of the slide plate 22 is fixedly connected to a push block 23 that penetrates the fixed cover 20, and the screw connection with the fixed sleeve 20 is disengaged by rotating the bolt 19, and then the baffle 18 is opened, and then the slide plate 22 is pushed by the second spring 21 in a compressed state, and the push block 23 further pushes the used filter 6 that is rotated to the top, which is convenient for pushing out the replaced filter 6 for cleaning.

[0027] Example 5

[0028] like Figure 2As shown, in order to solve the problem that the push block 23 for pushing the filter 6 will affect the rotation of the turntable 5, the push block 23 is arranged in a cone shape, and the push block 23 contacts the filter 6 at the top. By setting the push block 23 in a cone shape, and then making the push block 23 slide with the turntable 5 when the turntable 5 rotates, and at the same time making the push block 23 push the slide plate 22 to compress the second spring 21, the push block 23 for pushing the filter 6 is avoided. The influence of the rotation of the turntable 5 on the push block 23 is avoided.

[0029] In this embodiment, all electrical appliances in the device are external power supplies. When using the device, the sensing range of the pressure sensor 10 is first set through the controller 24. After setting, the device can be used. Because the more serious the blockage of the filter screen 6 is, the greater the water resistance is, the greater the degree to which the filter screen 6 pushes the slider 7 to compress the first spring 8, and the greater the force of the pressure block 9 to press the pressure sensor 10. Therefore, when the pressure value sensed by the pressure sensor 10 exceeds the set range to determine that the bottom filter screen 6 is blocked, the controller 24 automatically controls the electric push rod 12 to extend so that the bracket 13 drives the rack 14 to engage the gear 15, and further causes the fixed shaft 4 to drive the filter screen 6 in the turntable 5 to rotate 180 degrees, which can be done without affecting the use of the device. The filter 6 is automatically replaced under the condition that the filter 6 is replaced. When the filter 6 is replaced, the bracket 13 will trigger the control switch 16 at the bottom to start the micro alarm 17. After hearing the alarm issued by the micro alarm 17, the alarm issued by the micro alarm 17 is firstly released through the controller 24, and then the bolt 19 is turned to disengage the spiral connection with the fixing sleeve 20 to open the baffle 18, and then the slide plate 22 is pushed by the second spring 21 in the compressed state, and the push block 23 in the shape of a cone further pushes the used filter 6 turned to the top, so that the used filter 6 can be pushed out of the device, thereby facilitating the removal of the used filter 6 for cleaning. After cleaning, the cleaned filter 6 can be reset and recycled.

[0030] The above is a preferred implementation mode of the utility model. The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Technical personnel in this industry should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A cold water meter that is easy to replace a filter screen, comprising a cold water meter (1), characterized in that: The left end of the cold water meter (1) is connected to a fixed sleeve (2), the left bottom end of the fixed sleeve (2) is connected to a connecting pipe (3), the inner side of the fixed sleeve (2) is rotatably connected to a fixed shaft (4) penetrating the fixed sleeve (2), the outer side of the fixed shaft (4) is fixedly connected to a turntable (5) rotatably connected to the fixed sleeve (2), the inner side of the turntable (5) is slidably connected to a filter screen (6), the outer right end of the fixed shaft (4) is rotatably connected to a fixed box (11) fixedly connected to the fixed sleeve (2), the top end of the fixed box (11) is fixedly connected to an electric push rod (12), the bottom end of the electric push rod (12) is fixedly connected to a bracket (13) slidably connected to the fixed box (11), the inner side of the bracket (13) is fixedly connected to a rack (14), the outer side of the rack (14) is meshingly connected to a gear (15) fixedly connected to the fixed shaft (4), and the right top end of the fixed sleeve (2) is fixedly connected to a controller (24).

2. A cold water meter that is easy to replace the filter screen according to claim 1, characterized in that: The right end of the filter screen (6) contacts a slider (7) which is slidably connected to the turntable (5); the right end of the slider (7) is fixedly connected to a first spring (8); the other end of the first spring (8) is fixedly connected to a pressure block (9) which contacts the turntable (5); and the outer side of the pressure block (9) is fixedly connected to a pressure sensor (10) which contacts the turntable (5).

3. A cold water meter with easy filter replacement according to claim 1, characterized in that: The upper and lower ends of the inner side of the fixed box (11) are fixedly connected with control switches (16), and the control switch (16) at the top is in contact with the bracket (13), and the top of the fixed sleeve (2) is fixedly connected with a micro alarm (17).

4. A cold water meter with easy filter replacement according to claim 1, characterized in that: The top left side of the fixed sleeve (2) is rotatably connected to a baffle (18) via a rotating shaft, the top outer side of the baffle (18) is spirally connected to a bolt (19) penetrating the baffle (18), and the bolt (19) is spirally connected to the fixed sleeve (2), and the bottom end of the controller (24) is provided with a fixed cover (20) connected to the fixed sleeve (2), the inner side of the fixed cover (20) is fixedly connected to a second spring (21), the other end of the second spring (21) is fixedly connected to a slide plate (22) slidably connected to the fixed cover (20), and the left end of the slide plate (22) is fixedly connected to a push block (23) penetrating the fixed cover (20).

5. A cold water meter with easy filter replacement according to claim 4, characterized in that: The push block (23) is arranged in a frustum shape, and the push block (23) is in contact with the filter screen (6) at the top.

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