Telescopic filtering device

Abstract

The utility model discloses a telescopic filtering device which comprises a filtering pipe, a filtering net and a supporting pipe, the filtering net is fixed on the supporting pipe, the filtering net is arranged in the filtering pipe, the filtering pipe is sleeved with a sliding pipe, the sliding pipe is detachably connected with the supporting pipe, and the sliding pipe or the supporting pipe is fixed with the filtering pipe through a distance adjusting assembly. A first sealing piece is arranged between the sliding pipe and the filter pipe, and a sealing plate used for abutting against the first sealing piece is fixed to the sliding pipe. Compared with the prior art, the filter screen in the filter tube is fixed on the supporting tube, the supporting tube and the sliding tube are fixed, the first sealing element is arranged between the sliding tube and the filter tube, and then the sealing plate is fixed on the sliding tube, so that the sealing plate abuts against the first sealing element, and the first sealing element can better seal a gap between the sliding tube and the filter tube; the distance adjusting assembly adjusts the distance between the supporting pipe and the filter pipe by moving the sliding pipe, and the installation distance can be conveniently adjusted during on-site installation.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection technology, and in particular to a filter device with telescopic extension. Background Technology

[0002] In piping systems, the stable operation of valves and their associated equipment is crucial. However, water or other fluid media in pipelines often contain impurities such as mud, rust, and leaves. These impurities entering valves can lead to wear on sealing surfaces, valve body blockage, and inaccurate flow control. When installing filter devices, machining deviations such as flange hole spacing and pipe length can prevent direct alignment of the equipment, or the expansion and contraction of the pipeline due to temperature changes can also make filter device installation difficult. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] Based on this, the present invention proposes a filter device with telescopic extension to solve the installation distance problem that exists when installing the filter device.

[0005] (II) Technical Solution

[0006] To overcome or at least partially solve the above problems, this utility model provides a telescopic filter device, comprising: a filter tube, a filter screen, and a support tube. The filter screen is fixed on the support tube and disposed inside the filter tube. A sliding tube is sleeved on the filter tube and is detachably connected to the support tube. The sliding tube or the support tube is fixed to the filter tube by a distance adjustment component. A first sealing element is provided between the sliding tube and the filter tube, and a sealing plate for pressing against the first sealing element is fixed on the sliding tube.

[0007] Preferably, the inner side of the slide tube is provided with a first step, and a first groove for installing the first sealing element is formed between the first step and the filter tube, and the sealing plate is provided with an abutment plate extending into the first groove.

[0008] Preferably, the sealing plate includes a fixing ring, the abutment plate is fixed inside the fixing ring, and the fixing ring is fixed to the slide tube by bolts.

[0009] Preferably, the slide tube and the support tube are fixed by bolts, and a second sealing element is provided between the slide tube and the support tube.

[0010] Preferably, the distance adjustment assembly includes an adjustment rod, one end of which is fixed to the filter tube, and the other end passes through the slide tube and the support tube. Two locking nuts are threaded onto the adjustment rod, and the slide tube and the support tube are located between the two locking nuts.

[0011] Preferably, the end of the filter screen near the water inlet direction is a filter plate, the filter plate is arc-shaped, and the filter plate is provided with filter holes.

[0012] Preferably, the filter screen includes a filter cylinder, the filter plate is disposed on the filter cylinder, and the filter holes are disposed on the filter cylinder.

[0013] Preferably, the filter plate has a first support portion and a second support portion, which are arranged in a cross shape, and neither the first support portion nor the second support portion has filter holes.

[0014] Preferably, the filter tube includes a filter tube body and an installation tube, which are fixed together by bolts. The adjusting rod passes through the filter tube body and the installation tube, and two fastening nuts are threaded onto the adjusting rod. The filter tube body and the installation tube are located between the two fastening nuts. The outer wall of the installation tube is provided with a second step, and the first groove is provided between the first step and the second step.

[0015] Preferably, the upper end of the filter tube body is provided with an inspection door, the inspection door is located above the filter plate, and the filter tube body is provided with a drain cover below the inspection door.

[0016] (III) Beneficial Effects

[0017] The telescopic filter device of this invention has the following advantages:

[0018] In this invention, the filter screen inside the filter tube is fixed to the support tube, and the support tube and the slide tube are fixed together. A first sealing element is installed between the slide tube and the filter tube, and then a sealing plate is fixed to the slide tube, causing the sealing plate to press against the first sealing element, thus allowing the first sealing element to better seal the gap between the slide tube and the filter tube. The distance adjustment component adjusts the distance between the support tube and the filter tube by moving the slide tube, facilitating adjustment of the installation distance during on-site installation. The detachable connection design between the slide tube and the support tube facilitates future replacement of the filter screen. Attached Figure Description

[0019] The features and advantages of this utility model will be more clearly understood by referring to the accompanying drawings. The drawings are schematic and should not be construed as limiting the utility model in any way. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is the left view of the present invention;

[0022] Figure 3 This is a cross-sectional view of the present invention;

[0023] Figure 4This is a partial cross-sectional view of the filter screen of this utility model;

[0024] Figure 5 for Figure 3 An enlarged schematic diagram of the structure at point A in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Filter tube, 2. Filter screen, 3. Support tube, 4. Slide tube, 5. Distance adjustment component, 6. First seal, 7. Sealing plate, 8. Inspection door, 9. Drain cover, 11. Filter tube body, 12. Mounting tube, 121. Second step, 21. Filter plate, 22. Filter cylinder, 23. Filter hole, 51. Adjusting rod, 52. Locking nut, 53. Fastening nut, 71. Abutment plate, 72. Fixing ring, 01. First ball valve, 02. Second ball valve. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0028] See attached document Figure 1 and attached Figure 3 This embodiment provides a telescopic filter device, including: a filter tube 1, a filter screen 2, and a support tube 3. The filter screen 2 is fixed on the support tube 3 and is disposed inside the filter tube 1. The filter screen 2 is used to filter impurities in the filter tube 1. A sliding tube 4 is sleeved on the filter tube 1, and the sleeve moves along the axial direction of the filter tube 1. The sliding tube 4 is detachably connected to the support tube 3. The sliding tube 4 or the support tube 3 is fixed to the filter tube 1 by a distance adjustment component 5. The distance adjustment component 5 is used to adjust the distance between the support tube 3 and the filter tube 1. (Refer to the attached figure.) Figure 5 A first sealing element 6 is provided between the slide tube 4 and the filter tube 1, and a sealing plate 7 is fixed on the slide tube 4 to abut against the first sealing element 6. In this utility model, the filter device is installed in front of the valve. The first sealing element 6 is inserted between the slide tube 4 and the filter tube 1, so that the sealing plate 7 abuts against the first sealing element 6, thereby enabling the first sealing element 6 to better seal the gap between the slide tube 4 and the filter tube 1. Then, the support tube 3 is fixed to the slide tube 4. The movement of the slide tube 4 drives the movement of the support tube 3, thereby adjusting the distance between the support tube 3 and the filter tube 1, so as to adjust the installation distance of the filter device according to the needs of the site. The detachable connection design between the slide tube 4 and the support tube 3 facilitates the replacement of the filter screen 2 later.

[0029] One embodiment of the installation of the first sealing element 6: The inner side of the slide tube 4 is provided with a first step, and a first groove for the installation of the first sealing element 6 is formed between the first step and the filter tube 1. The sealing plate 7 is provided with an abutment plate 71 that extends into the first groove. After the first sealing element 6 is installed in the first groove, the abutment plate 71 abuts against the first sealing element 6.

[0030] In another embodiment of this utility model: the sealing plate 7 includes a fixing ring 72, which is sleeved on the filter tube 1. The abutment plate 71 is fixed inside the fixing ring 72, and the fixing ring 72 is fixed to the slide tube 4 by bolts. Specifically, the bolts on the slide tube 4 pass through the fixing ring 72 and are threadedly connected to the nut, thereby fixing the fixing ring 72 to the slide tube 4.

[0031] In one embodiment where the sliding pipe 4 and the support pipe 3 are detachably connected, the flange on the sliding pipe 4 and the flange on the support pipe 3 are fixed together by bolts, and a second sealing element is provided between the sliding pipe 4 and the support pipe 3. The end of the support pipe 3 away from the sliding pipe 4 is also provided with a flange that mates with the pipe.

[0032] One embodiment of the distance adjustment assembly 5: The distance adjustment assembly 5 includes an adjustment rod 51. One end of the adjustment rod 51 is fixed to the filter tube 1, and the other end passes through the slide tube 4 and the support tube 3. Two locking nuts 52 are threaded onto the adjustment rod 51, and the slide tube 4 and the support tube 3 are located between the two locking nuts 52. After the slide tube 4 and the support tube 3 are fixed, they become a whole. The distance between the support tube 3 and the filter tube 1 is adjusted by moving the support tube 3 on the adjustment rod 51. After adjustment, the slide tube 4 and the support tube 3 are fixed to the adjustment rod 51 with the two locking nuts 52.

[0033] As another embodiment of this utility model: refer to the appendix Figure 4 The end of the filter screen 2 closest to the water inlet is a filter plate 21. The filter plate 21 is arc-shaped and has filter holes 23. Making the filter plate 21 arc-shaped increases the number of filter holes 23, which reduces the impact of filtration on flow resistance.

[0034] In another embodiment of this utility model: the filter screen 2 includes a filter cylinder 22, a filter plate 21 disposed on the filter cylinder 22, and filter holes 23 disposed on the filter cylinder 22. The filter holes 23 disposed in the filter cylinder 22 effectively ensure the full-bore flow path of the pipeline and reduce the impact of filtration on flow resistance.

[0035] The filter plate 21 has a first support portion and a second support portion, which are arranged in a cross shape. Neither the first nor the second support portion has filter holes 23. The intersection of the first and second support portions is located on the axis of the filter cartridge 22. The first and second support portions ensure the strength of the filter plate 21. The filter plate 21 and the filter cartridge 22 are fixed by welding. To ensure the strength of the filter screen 2, no filter holes 23 are provided at the edge where the filter plate 21 and the filter cartridge 22 connect. Similarly, to ensure the strength of the filter screen 2, no filter holes 23 are provided at the edge of the filter screen 2 near the support tube 3.

[0036] One embodiment of filter tube 1: Filter tube 1 includes a filter tube body 11 and a mounting tube 12, which are fixed together by bolts. An adjusting rod 51 passes through the filter tube body 11 and the mounting tube 12. Two fastening nuts 53 are threaded onto the adjusting rod 51, and the filter tube body 11 and the mounting tube 12 are located between the two fastening nuts 53. The filter tube body 11 and the mounting tube 12 are fixed to the adjusting rod 51 by the two fastening nuts 53. The outer wall of the mounting tube 12 is provided with a second step 121, and a first groove is provided between the first step and the second step 121. At the connection point between the mounting tube 12 and the filter tube body 11, the thickness of the mounting tube 12 is greater than the thickness of the filter tube body 11. Dividing the filter tube 1 into a filter tube body 11 and a mounting tube 12 facilitates processing and subsequent maintenance.

[0037] As another embodiment of this utility model: refer to the appendix Figure 2 The filter tube body 11 is provided with an inspection door 8 at the upper end. The inspection door 8 facilitates personnel to enter the filter tube 1 to clean the filter screen 2. The inspection door 8 is located above the filter plate 21. The filter tube body 11 is provided with a drain cover 9 below the inspection door 8. After the drain cover 9 is opened, it is convenient to discharge the filtered impurities.

[0038] As another embodiment of this utility model: the inspection door 8 is provided with a first ball valve 01, which is used for venting air, and the drain cover 9 is provided with a second ball valve 02, which is used for discharging fine impurities.

[0039] Finally, the method of this utility model is only a preferred embodiment and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

[0040] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A filter device with telescopic extension, characterized in that, include: The filter tube, filter screen, and support tube are provided. The filter screen is fixed on the support tube and is located inside the filter tube. A sliding tube is sleeved on the filter tube and is detachably connected to the support tube. The sliding tube or support tube is fixed to the filter tube by a distance adjustment component. A first sealing element is provided between the sliding tube and the filter tube, and a sealing plate for pressing against the first sealing element is fixed on the sliding tube.

2. The telescopic filter device according to claim 1, characterized in that, The inner side of the slide tube is provided with a first step, and a first groove for installing a first sealing element is formed between the first step and the filter tube. The sealing plate is provided with an abutment plate that extends into the first groove.

3. The telescopic filter device according to claim 2, characterized in that, The sealing plate includes a fixing ring, the abutment plate is fixed inside the fixing ring, and the fixing ring is fixed to the slide tube by bolts.

4. The telescopic filter device according to claim 3, characterized in that, The sliding tube and the support tube are fixed together by bolts, and a second sealing element is provided between the sliding tube and the support tube.

5. The retractable filter device according to claim 4, characterized in that, The distance adjustment assembly includes an adjustment rod, one end of which is fixed to the filter tube, and the other end passes through the slide tube and the support tube. Two locking nuts are threaded onto the adjustment rod, and the slide tube and the support tube are located between the two locking nuts.

6. The telescopic filter device according to claim 1, characterized in that, The end of the filter screen near the water inlet is a filter plate, which is arc-shaped and has filter holes.

7. The telescopic filter device according to claim 6, characterized in that, The filter screen includes a filter cylinder, the filter plate is disposed on the filter cylinder, and the filter holes are disposed on the filter cylinder.

8. The telescopic filter device according to claim 7, characterized in that, The filter plate has a first support portion and a second support portion, which are arranged in a cross shape. Neither the first support portion nor the second support portion has filter holes.

9. The retractable filter device according to claim 5, characterized in that, The filter tube includes a filter tube body and an installation tube, which are fixed together by bolts. An adjusting rod passes through the filter tube body and the installation tube, and two fastening nuts are threaded onto the adjusting rod. The filter tube body and the installation tube are located between the two fastening nuts. The outer wall of the installation tube is provided with a second step, and the first groove is provided between the first step and the second step.

10. The telescopic filter device according to claim 9, characterized in that, The filter tube body is provided with an inspection door at the upper end, the inspection door is located above the filter plate, and the filter tube body is provided with a drain cover below the inspection door.

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