Full-automatic constant-pressure water replenishing vacuum exhaust equipment for circulating water system

Abstract

The utility model provides full-automatic constant-pressure water replenishing vacuum exhaust equipment for a circulating water system, which comprises an automatic constant-pressure water replenishing vacuum exhaust equipment main body which is connected with a filter shell through a water pipe, and also comprises a jacking structure which is arranged inside the filter shell. According to the automatic constant-pressure water replenishing vacuum exhaust equipment, the fixed block is manually rotated to drive the filter part placed in the fixed block to rotate, so that the automatic constant-pressure water replenishing vacuum exhaust equipment does not need to be paused when the filter part is replaced, and the influence on the working efficiency of the automatic constant-pressure water replenishing vacuum exhaust equipment main body is avoided; and the second threaded sleeve rotates to drive the first threaded sleeve to ascend, the first threaded sleeve ascends to push the filter part to move upwards to leave the filter shell, and the filter part is taken down, so that disassembly and replacement of the filter part can be completed, and disassembly and replacement of the filter part are relatively convenient.

Description

Technical Field

[0001] The utility model relates to full-automatic constant-pressure water-filling vacuum exhaust equipment for a circulating water system. Background Art

[0002] The main function of the automatic constant pressure water replenishment vacuum exhaust equipment is to prevent the system pressure ("HVAC, water supply equipment" hereinafter referred to as "system") from being too high, exceeding the pressure range of pipelines, equipment and accessories, preventing the system pressure from being too low, causing negative pressure at the high point of the system, and compensating for system water shortage caused by pipeline leakage, etc. It is an existing large-scale closed circulating water system, widely used in process cooling or central air-conditioning and other places.

[0003] Among the existing utility models in China, the publication number CN207957821 discloses a constant-pressure water-making vacuum degassing unit, including a constant-pressure water tank, the surfaces of which are respectively connected with a waterproof air-extraction component and a constant-pressure water-making component, the top of which is connected with an exhaust component, the constant-pressure water-making component including a hollow water-making seat connected to the inner wall of the constant-pressure water tank, the outer end of the hollow water-making seat is connected with an inlet pipe, the end of the inlet pipe is connected with a water storage seat, the bottom end of the water storage seat is connected with a water inlet cylinder, the bottom end of the constant-pressure water tank is connected with a drain pipe, the bottom end of the drain pipe is connected to the water inlet cylinder through a reflux component, the waterproof air-extraction component includes an air-extraction seat connected to the inner wall of the constant-pressure water tank, the outside of the air-extraction seat is connected with a conducting seat, the top of the conducting seat is connected with a vertical U-shaped tube, the end of the vertical U-shaped tube is connected with an air-extraction tube, water is pumped by means of the waterproof air-extraction component with a waterproof function, the corrosion effect of water vapor on the whole is effectively reduced, and the reflux component is used to realize the circulation and utilization of water resources.

[0004] Referring to the above-mentioned constant pressure water replenishment vacuum degassing unit, the constant pressure water replenishment vacuum degassing unit filters and recycles the water introduced into the drain pipe through the activated carbon filter and the filter seat. However, when filtering the water through the activated carbon filter and the filter seat, there is a certain degree of filtration saturation. Once the activated carbon filter and the filter seat reach saturation, they can no longer filter well. Therefore, it is necessary to regularly replace the activated carbon filter and the filter seat. However, when replacing the activated carbon filter and the filter seat, in order to avoid unfiltered water from entering the water inlet cylinder, it is usually necessary to suspend the work of the constant pressure water replenishment vacuum degassing unit, but this will affect the overall work efficiency of the constant pressure water replenishment vacuum degassing unit. Therefore, how to avoid affecting the work efficiency of the automatic constant pressure water replenishment vacuum exhaust equipment while replacing the filter components well is an important problem that needs to be solved in the design of fully automatic constant pressure water replenishment vacuum exhaust equipment for circulating water systems. Utility Model Content

[0005] The utility model provides a fully automatic constant pressure water replenishment vacuum exhaust device for a circulating water system in order to solve the problem of avoiding affecting the working efficiency of the automatic constant pressure water replenishment vacuum exhaust device while better replacing the filter element.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] The utility model provides a fully automatic constant pressure water replenishment vacuum exhaust device for a circulating water system, comprising an automatic constant pressure water replenishment vacuum exhaust device body, the automatic constant pressure water replenishment vacuum exhaust device body is connected to a filter housing through a water pipe, and further comprises:

[0008] A jacking structure, wherein the jacking structure is arranged inside the filter housing;

[0009] A rotating structure, wherein the rotating structure is arranged inside the filter housing;

[0010] The filter element is placed in a rotating structure, and the rotating structure rotates to drive the filter element to rotate and replace.

[0011] Preferably, a shielding cover is rotatably connected to the top side wall of the filter housing, and the top of the shielding cover is fixedly connected to the handle frame.

[0012] In this technical solution, the shielding cover can be pulled open by the handle frame.

[0013] Preferably, a support frame is fixedly connected to the bottom side wall of the filter housing.

[0014] In this technical solution, the support frame supports the threaded sleeve 2.

[0015] Preferably, the rotating structure includes an arc-shaped support plate, a partition plate, a sliding groove and a sealing gasket, two arc-shaped support plates are fixedly connected to the side walls on both sides of the partition plate, the partition plate and the bottom side walls of the arc-shaped support plate both protrude toward the middle, a sliding groove is opened on the side wall of the partition plate, and a sealing gasket is fixedly connected to the top and bottom side walls of the partition plate.

[0016] In the technical solution, the sealing gasket enables a sealed connection between the partition plate and the inner side wall of the filter housing.

[0017] Preferably, the rotating structure includes a rotating groove, a fixed block, a sliding square rod, a sliding ring and a second spring, the sliding square rod is slidably connected to the side wall of the partition plate, the two ends of the sliding square rod extend out of the top and bottom side walls of the filter housing, the sliding ring is fixedly connected to the side wall of the sliding square rod, the sliding ring is slidably connected in the sliding groove, the second spring is fixedly connected between the sliding ring and the sliding groove, the top of the sliding square rod is fixedly connected to the fixed block, and the bottom of the sliding square rod is provided with a rotating groove.

[0018] In the present technical solution, the fixed block is manually rotated, the fixed block drives the sliding square rod to rotate, the sliding square rod drives the partition plate to rotate, the partition plate drives the arc-shaped support plate to rotate, the arc-shaped support plate drives the filter element placed inside to rotate, and after rotating 180 degrees, the filters on the left and right sides are replaced, the unused filter element on the right side is replaced with the left side for use, and the saturated left filter element is rotated to the right. During the process of replacing the filter element, water filtration can still be continued without pausing the automatic constant pressure water replenishment vacuum exhaust equipment.

[0019] Preferably, the filter element includes an activated carbon filter screen, a resin filter element and a hollow fiber filter membrane, the resin filter element is fixedly arranged on the top of the hollow fiber filter membrane, the activated carbon filter screen is fixedly arranged on the top of the resin filter element, and the filter element is placed in the cavity between the arc-shaped support plate and the partition plate.

[0020] In this technical solution, the water in the constant pressure tank on the main body of the automatic constant pressure water replenishment vacuum exhaust equipment is passed into the filter housing through a water pipe, and the water is filtered through an activated carbon filter, a resin filter element and a hollow fiber filter membrane.

[0021] Preferably, the lifting structure includes a connecting frame, a threaded rod, a pushing plate, a threaded sleeve 1, a threaded sleeve 2 and a limiting support block. One end of the connecting frame is rotatably connected in a rotating groove, and the other end of the connecting frame is fixedly connected to the threaded rod. The threaded rod is threadedly connected to the threaded sleeve 2, and an external thread is provided on the outer side wall of the threaded sleeve 2. The threaded sleeve 2 is threadedly connected to a square threaded sleeve 1, the top of the threaded sleeve 1 is fixedly connected to the pushing plate, and two annular limiting support blocks are fixedly connected to the side walls of the threaded sleeve 2.

[0022] In the present technical solution, the shielding cover is pressed on the fixed block, and the shielding cover is pressed, so that the fixed block descends under the action of force, and the fixed block drives the sliding square rod to descend, and the sliding square rod drives the sliding ring and the connecting frame to descend, the spring 2 is compressed, and the connecting frame drives the threaded rod to descend, and the descending of the threaded rod drives the threaded sleeve 2 to rotate, and the rotation of the threaded sleeve 2 drives the threaded sleeve 1 to rise, and the rising of the threaded sleeve 1 pushes the pushing plate to rise, and the pushing plate pushes the saturated filter element to rise, so that the filter element moves upward and leaves the filter housing, and the filter element is removed to complete the disassembly and replacement of the filter element.

[0023] Preferably, the first threaded sleeve is slidably connected to the bottom side wall of the filter housing, the second threaded sleeve is rotatably connected to the side wall of the support frame, and the limiting support block is located at the upper and lower sides of the bottom side wall of the support frame.

[0024] In this technical solution, the limiting support block can prevent the second threaded sleeve from sliding up and down.

[0025] Preferably, the push plate is located directly below the shielding cover.

[0026] Preferably, the lifting structure includes a fixing frame and a spring 1, the fixing frame is fixedly connected to the bottom side wall of the filtering structure, the fixing frame is internally slidably connected to the connecting frame, one end of the spring 1 is fixedly connected to the bottom inner wall of the fixing frame, and the other end of the spring 1 is fixedly connected to the side wall of the connecting frame.

[0027] In the technical solution, the fixing frame restricts the rotation of the connecting frame, and when the connecting frame is no longer subjected to a downward force, the spring 1 is unfolded to push the connecting frame upward.

[0028] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0029] The positive and progressive effects of the utility model are:

[0030] 1. By manually rotating the fixed block, the fixed block drives the partition plate to rotate, the partition plate drives the arc-shaped support plate to rotate, and the arc-shaped support plate drives the filter element placed inside to rotate. After rotating 180 degrees, the unused filter element on the right side is replaced with the left side for use, and the saturated left filter element is rotated to the right side. During the filter element replacement process, water filtration can still be continued, which is convenient for better replacement of the filter element without suspending the automatic constant pressure water replenishment vacuum exhaust equipment, thereby avoiding affecting the working efficiency of the main body of the automatic constant pressure water replenishment vacuum exhaust equipment.

[0031] 2. Pull open the shielding cover by the handle frame so that the shielding cover is pressed on the fixed block, and press the shielding cover so that the fixed block descends under the action of force, and the fixed block drives the connecting frame to descend, and the connecting frame drives the threaded rod to descend, and the descending threaded rod drives the second threaded sleeve to rotate, and the rotation of the second threaded sleeve drives the first threaded sleeve to rise, and the rising threaded sleeve pushes the pushing plate to rise, and the pushing plate pushes the saturated filter element to rise, so that the filter element moves upward and leaves the filter housing, and the filter element is removed, and the disassembly and replacement of the filter element can be completed, which makes the disassembly and replacement of the filter element more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0033] Figure 2 It is a schematic diagram of the three-dimensional structure of the filter housing of the utility model.

[0034] Figure 3 This is a schematic diagram of the internal structure of the filter housing of the utility model.

[0035] Figure 4 It is a three-dimensional structural schematic diagram of the rotating structure of the utility model.

[0036] Figure 5It is a three-dimensional structural schematic diagram of the jacking structure of the utility model.

[0037] Figure 6 For this utility model Figure 3 Schematic diagram of the local enlarged structure at A.

[0038] Description of Reference Numerals

[0039] 1. Automatic constant pressure water replenishment vacuum exhaust equipment body; 2. Filter housing; 3. Filter element; 301. Activated carbon filter; 302. Resin filter element; 303. Hollow fiber filter membrane; 4. Water pipe; 5. Handle frame; 6. Lifting structure; 601. Connecting frame; 602. Threaded rod; 603. Push plate; 604. Threaded sleeve one; 605. Threaded sleeve two; 606. Limit support block; 611. Fixed frame; 612. Spring one; 7. Rotating structure; 701. Arc support plate; 702. Partition plate; 703. Sliding groove; 704. Sealing pad; 711. Rotating groove; 712. Fixed block; 713. Sliding square rod; 714. Sliding ring; 715. Spring two; 8. Shielding cover; 9. Support frame. DETAILED DESCRIPTION

[0040] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0041] like Figure 1-6 As shown, the fully automatic constant pressure water replenishment vacuum exhaust equipment for the circulating water system includes an automatic constant pressure water replenishment vacuum exhaust equipment body 1, the automatic constant pressure water replenishment vacuum exhaust equipment body 1 is connected to the filter housing 2 through a water pipe 4, and also includes:

[0042] A lifting structure 6, wherein the lifting structure 6 is arranged inside the filter housing 2;

[0043] A rotating structure 7, wherein the rotating structure 7 is arranged inside the filter housing 2;

[0044] The filter element 3 is placed in a rotating structure 7, and the rotating structure 7 rotates to drive the filter element 3 to rotate and replace.

[0045] The top side wall of the filter housing 2 is rotatably connected to a shielding cover 8 , and the top of the shielding cover 8 is fixedly connected to a handle frame 5 .

[0046] The shielding cover 8 can be opened by the handle frame 5 .

[0047] A support frame 9 is fixedly connected to the bottom side wall of the filter housing 2 .

[0048] The support frame 9 supports the threaded sleeve 2 605 .

[0049] The rotating structure 7 includes an arc-shaped support plate 701, a partition plate 702, a sliding groove 703 and a sealing gasket 704. Two arc-shaped support plates 701 are fixedly connected to the side walls on both sides of the partition plate 702. The bottom side walls of the partition plate 702 and the arc-shaped support plate 701 both protrude toward the middle. A sliding groove 703 is opened on the side wall of the partition plate 702. Sealing gaskets 704 are fixedly connected to the top and bottom side walls of the partition plate 702.

[0050] The sealing gasket 704 enables a sealed connection between the partition plate 702 and the inner wall of the filter housing 2 .

[0051] The rotating structure 7 includes a rotating groove 711, a fixed block 712, a sliding square rod 713, a sliding ring 714 and a second spring 715. The sliding square rod 713 is slidably connected to the side wall of the partition plate 702. Both ends of the sliding square rod 713 extend out of the top and bottom side walls of the filter housing 2. The sliding ring 714 is fixedly connected to the side wall of the sliding square rod 713. The sliding ring 714 is slidably connected in the sliding groove 703. The second spring 715 is fixedly connected between the sliding ring 714 and the sliding groove 703. The top of the sliding square rod 713 is fixedly connected to the fixed block 712. The bottom of the sliding square rod 713 is provided with a rotating groove 711.

[0052] Manually rotate the fixed block 712, the fixed block 712 drives the sliding square rod 713 to rotate, the sliding square rod 713 drives the partition plate 702 to rotate, the partition plate 702 drives the arc support plate 701 to rotate, the arc support plate 701 drives the filter element 3 placed inside to rotate, after rotating 180 degrees, the filter elements 3 on the left and right sides are replaced, the unused filter element 3 on the right side is replaced with the left side for use, and the saturated left filter element 3 is rotated to the right side. During the replacement of the filter element 3, water filtration can still be continued without pausing the automatic constant pressure water replenishment vacuum exhaust equipment.

[0053] The filter element 3 includes an activated carbon filter 301, a resin filter element 302 and a hollow fiber filter membrane 303. The resin filter element 302 is fixedly arranged on the top of the hollow fiber filter membrane 303, and the activated carbon filter 301 is fixedly arranged on the top of the resin filter element 302. The filter element 3 is placed in the cavity between the arc-shaped support plate 701 and the partition plate 702.

[0054] The water in the constant pressure tank on the main body 1 of the automatic constant pressure water replenishment vacuum exhaust equipment is passed into the filter housing 2 through the water pipe 4, and the water is filtered through the activated carbon filter 301, the resin filter element 302 and the hollow fiber filter membrane 303.

[0055] The lifting structure 6 includes a connecting frame 601, a threaded rod 602, a pushing plate 603, a threaded sleeve 1 604, a threaded sleeve 2 605 and a limiting support block 606. One end of the connecting frame 601 is rotatably connected in the rotating groove 711, and the other end of the connecting frame 601 is fixedly connected to the threaded rod 602. The threaded rod 602 is threadedly connected to the threaded sleeve 2 605. The outer side wall of the threaded sleeve 2 605 is provided with an external thread. The threaded sleeve 2 605 is threadedly connected to the square threaded sleeve 1 604. The top of the threaded sleeve 1 604 is fixedly connected to the pushing plate 603. The side wall of the threaded sleeve 2 605 is fixedly connected to two annular limiting support blocks 606.

[0056] The shielding cover 8 is pressed on the fixed block 712, and the shielding cover 8 is pressed, so that the fixed block 712 descends under the action of force, and the fixed block 712 drives the sliding square rod 713 to descend, and the sliding square rod 713 drives the sliding ring 714 and the connecting frame 601 to descend, and the spring 2 715 is compressed, and the connecting frame 601 drives the threaded rod 602 to descend, and the descent of the threaded rod 602 drives the threaded sleeve 2 605 to rotate, and the rotation of the threaded sleeve 2 605 drives the threaded sleeve 1 604 to rise, and the rise of the threaded sleeve 1 604 pushes the push plate 603 to rise, and the push plate 603 pushes the saturated filter element 3 to rise, so that the filter element 3 moves upward and leaves the filter housing 2, and the filter element 3 is removed, and the disassembly and replacement of the filter element 3 can be completed.

[0057] The threaded sleeve 1 604 is slidably connected to the bottom side wall of the filter housing 2 , the threaded sleeve 2 605 is rotatably connected to the side wall of the support frame 9 , and the limiting support block 606 is located at the upper and lower sides of the bottom side wall of the support frame 9 .

[0058] The limiting support block 606 can prevent the threaded sleeve 605 from sliding up and down.

[0059] The pushing plate 603 is located directly below the shielding cover 8 .

[0060] The lifting structure 6 includes a fixing frame 611 and a spring 612. The fixing frame 611 is fixedly connected to the bottom side wall of the filtering structure. The fixing frame 611 is internally slidably connected to the connecting frame 601. One end of the spring 612 is fixedly connected to the bottom inner wall of the fixing frame 611, and the other end of the spring 612 is fixedly connected to the side wall of the connecting frame 601.

[0061] The fixing frame 611 limits the rotation of the connecting frame 601, and the spring 1 612 expands to push the connecting frame 601 upward when the connecting frame 601 is no longer subjected to a downward force.

[0062] When the utility model is in use, the electrical components in the present application are all connected to an external power supply and a control switch, and the water in the constant pressure tank on the main body 1 of the automatic constant pressure water replenishment vacuum exhaust device is passed into the filter housing 2 through the water pipe 4, and the water is filtered through the activated carbon filter 301, the resin filter element 302 and the hollow fiber filter membrane 303, and then the filtered water is recycled through the reflux component on the main body 1 of the automatic constant pressure water replenishment vacuum exhaust device;

[0063] When the filter element 3 needs to be replaced, the fixed block 712 is manually rotated, and the fixed block 712 drives the sliding square rod 713 to rotate, and the sliding square rod 713 drives the partition plate 702 to rotate, and the partition plate 702 drives the arc-shaped supporting plate 701 to rotate, and the arc-shaped supporting plate 701 drives the filter element 3 placed inside to rotate. After rotating 180 degrees, the filter elements 3 on the left and right sides are replaced, and the unused filter element 3 on the right side is replaced with the left side for use, and the saturated filter element 3 on the left side is rotated to the right side. During the replacement of the filter element 3, water filtering can still be continued, and there is no need to suspend the automatic constant pressure water replenishment vacuum exhaust equipment, thereby avoiding affecting the working efficiency of the automatic constant pressure water replenishment vacuum exhaust equipment body 1;

[0064] After the saturated filter element 3 is rotated to the right side, the shielding cover 8 is pulled open by the handle frame 5 so that the shielding cover 8 is pressed on the fixed block 712, and the shielding cover 8 is pressed so that the fixed block 712 descends under the action of force, and the fixed block 712 drives the sliding square rod 713 to descend, and the sliding square rod 713 drives the sliding ring 714 and the connecting frame 601 to descend, and the spring 2 715 is compressed, and the connecting frame 601 drives the threaded rod 602 to descend, and the descent of the threaded rod 602 drives the threaded sleeve 2 605 to rotate, and the rotation of the threaded sleeve 2 605 drives the threaded sleeve 1 604 to rise, and the rise of the threaded sleeve 1 604 pushes the push plate 603 to rise, and the push plate 603 pushes the saturated filter element 3 to rise, so that the filter element 3 moves upward and leaves the filter housing 2, and the filter element 3 is removed, and the disassembly and replacement of the filter element 3 can be completed, which makes the disassembly and replacement of the filter element 3 more convenient.

[0065] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. A fully automatic constant pressure water replenishment vacuum exhaust device for a circulating water system, comprising an automatic constant pressure water replenishment vacuum exhaust device body (1), wherein the automatic constant pressure water replenishment vacuum exhaust device body (1) is connected to a filter housing (2) via a water pipe (4), and is characterized in that: Also includes: A lifting structure (6), wherein the lifting structure (6) is arranged inside the filter housing (2); A rotating structure (7), wherein the rotating structure (7) is arranged inside the filter housing (2); A filter element (3), wherein the filter element (3) is placed in a rotating structure (7), and the rotating structure (7) rotates to drive the filter element (3) to rotate and replace.

2. The fully automatic constant pressure water replenishment vacuum exhaust equipment for a circulating water system according to claim 1, characterized in that: A shielding cover (8) is rotatably connected to the top side wall of the filter housing (2), and the top of the shielding cover (8) is fixedly connected to the handle frame (5).

3. The fully automatic constant pressure water replenishment vacuum exhaust equipment for a circulating water system according to claim 1, characterized in that: A support frame (9) is fixedly connected to the bottom side wall of the filter housing (2).

4. The fully automatic constant pressure water replenishment vacuum exhaust equipment for a circulating water system according to claim 1, characterized in that: The rotating structure (7) comprises an arc-shaped supporting plate (701), a partition plate (702), a sliding groove (703) and a sealing gasket (704); two arc-shaped supporting plates (701) are fixedly connected to the side walls on both sides of the partition plate (702); the bottom side walls of the partition plate (702) and the arc-shaped supporting plate (701) both protrude toward the middle; a sliding groove (703) is provided on the side wall of the partition plate (702); and sealing gaskets (704) are fixedly connected to the top and bottom side walls of the partition plate (702).

5. The fully automatic constant pressure water replenishment vacuum exhaust equipment for a circulating water system according to claim 4, characterized in that: The rotating structure (7) comprises a rotating groove (711), a fixed block (712), a sliding square rod (713), a sliding ring (714) and a second spring (715); the sliding square rod (713) is slidably connected to the side wall of the partition plate (702); two ends of the sliding square rod (713) extend out of the top and bottom side walls of the filter housing (2); a sliding ring (714) is fixedly connected to the side wall of the sliding square rod (713); the sliding ring (714) is slidably connected in the sliding groove (703); a second spring (715) is fixedly connected between the sliding ring (714) and the sliding groove (703); the top of the sliding square rod (713) is fixedly connected to the fixed block (712); and a rotating groove (711) is provided at the bottom of the sliding square rod (713).

6. The fully automatic constant pressure water replenishment vacuum exhaust equipment for a circulating water system according to claim 1, characterized in that: The filter element (3) comprises an activated carbon filter (301), a resin filter element (302) and a hollow fiber filter membrane (303); the resin filter element (302) is fixedly arranged on the top of the hollow fiber filter membrane (303); the activated carbon filter (301) is fixedly arranged on the top of the resin filter element (302); and the filter element (3) is placed in a cavity between the arc-shaped support plate (701) and the partition plate (702).

7. The fully automatic constant pressure water replenishment vacuum exhaust equipment for a circulating water system according to claim 1, characterized in that: The lifting structure (6) comprises a connecting frame (601), a threaded rod (602), a pushing plate (603), a threaded sleeve 1 (604), a threaded sleeve 2 (605) and a limiting support block (606); one end of the connecting frame (601) is rotatably connected in the rotating groove (711); the other end of the connecting frame (601) is fixedly connected to the threaded rod (602); the threaded sleeve 2 (605) is threadedly connected to the threaded rod (602); an outer wall of the threaded sleeve 2 (605) is provided with an external thread; the threaded sleeve 2 (605) is threadedly connected to a square threaded sleeve 1 (604); the top of the threaded sleeve 1 (604) is fixedly connected to the pushing plate (603); and two annular limiting support blocks (606) are fixedly connected to the side wall of the threaded sleeve 2 (605).

8. The fully automatic constant pressure water replenishment vacuum exhaust equipment for a circulating water system according to claim 7, characterized in that: The threaded sleeve 1 (604) is slidably connected to the bottom side wall of the filter housing (2), the threaded sleeve 2 (605) is rotatably connected to the side wall of the support frame (9), and the limiting support block (606) is located on the upper and lower sides of the bottom side wall of the support frame (9).

9. The fully automatic constant pressure water replenishment vacuum exhaust equipment for a circulating water system according to claim 7, characterized in that: The pushing plate (603) is located directly below the shielding cover (8).

10. The fully automatic constant pressure water replenishment vacuum exhaust equipment for a circulating water system according to claim 7, characterized in that: The lifting structure (6) comprises a fixing frame (611) and a spring 1 (612); the fixing frame (611) is fixedly connected to the bottom side wall of the filtering structure; the fixing frame (611) is internally slidably connected to the connecting frame (601); one end of the spring 1 (612) is fixedly connected to the bottom inner side wall of the fixing frame (611); and the other end of the spring 1 (612) is fixedly connected to the side wall of the connecting frame (601).

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