Constant-pressure water supply system for aquaculture drinking water line

Abstract

The invention relates to the technical field of poultry breeding facilities, and discloses a constant-pressure water supply system for a breeding drinking water line, the constant-pressure water supply system comprises a constant-pressure water supply device, the top of the constant-pressure water supply device is connected with two connectors, and the other ends of the connectors are sleeved with hoses; a protective barrel shell is fixedly installed in the middle of the outer wall of the connector, a connecting frame is rotationally connected to the side, close to the protective barrel shell, of the adjusting nut, a driving rotary disc is rotationally connected to the end, located in the protective barrel shell, of the connecting frame, and clamping assemblies are slidably connected to the side face of the driving rotary disc in an array mode. By screwing an adjusting nut, a driving rotary disc and a clamping assembly synchronously move rightwards, a first sliding column slides in a spiral groove, and a sealing ring and a rotary ring are made to rotate; the rotating ring is located on the side wall of the inclined groove to extrude the second sliding column and push the second sliding column and the sliding seat to slide along the guide rail, so that the arc-shaped clamping plate is attached to the surface of the hose; the pressure-regulating water supply device and the water pipe are connected conveniently and quickly, and the sealing effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of poultry breeding facilities, and in particular to a constant pressure water supply system for a breeding drinking water line. Background Art

[0002] Cage farming mainly involves raising chickens in cages to achieve a high-density, high-efficiency farming model. In the chicken farming process, a nipple drinking line is usually used for water supply. When the chicken's mouth touches the water spout of the drinking line, water will flow out of the spout, so that the animal can get fresh drinking water at any time. Usually, a pressure regulating water supply device is also set on the nipple drinking line to ensure that a stable water pressure is maintained throughout the nipple drinking line.

[0003] As the size of chickens changes during the feeding process, the drinking water demand will also increase from less to more. With the help of a pressure regulating water supply device, the water supply pressure of the drinking water pipe can be frequently adjusted to achieve constant pressure water supply. When a conventional pressure regulating water supply device is connected to a water pipe, it is generally connected through a thread and sealed with a raw tape. This connection method requires adjusting the length of the raw tape winding, which is more troublesome to operate. Moreover, after the raw tape ages, it will cause leakage between the pressure regulating water supply device and the water pipe, affecting the pressure regulating effect of the pressure regulating water supply device. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a constant pressure water supply system for an aquaculture drinking water line.

[0005] The present invention provides the following technical scheme: a constant-pressure water supply system for aquaculture drinking water lines, comprising a constant-pressure water supply device, wherein two connectors are connected to the top of the constant-pressure water supply device, and a hose is sleeved on the other end of the connector; a protective cylinder shell is fixedly installed in the middle of the outer wall of the connector, and a thread is arranged on the outer wall surface of the connector, and the connector is threadedly connected to an adjusting nut through the thread, and the adjusting nut is located between the protective cylinder shell and the constant-pressure water supply device, and a connecting frame is rotatably connected to a side of the adjusting nut close to the protective cylinder shell, and the connecting frame penetrates and is slidably connected to the protective cylinder shell; one end of the connecting frame located inside the protective cylinder shell is rotatably connected to a driving turntable, and two groups of spiral grooves are penetrated in an array on the circumferential surface of the protective cylinder shell, and two sliding columns are fixedly installed on the outer wall of the driving turntable, and the sliding column is slidably connected in the spiral groove; a clamping assembly is slidably connected to the side array of the driving turntable, and the clamping assembly is slidably connected to the inner side of the connecting frame, and the driving clamping assembly moves toward the surface of the hose during the rotation of the driving turntable.

[0006] Preferably, a convex ring 1 and a convex ring 2 are fixedly installed on the outer wall of one end of the connector away from the constant pressure water supply device, the convex ring 1 is located on the left side of the convex ring 2, the outer diameter of the convex ring 1 gradually decreases from left to right, and the outer diameter of the convex ring 2 gradually increases from left to right, and a friction ring is fixed in an array on the outer wall of the convex ring 2, and the cross-section of the friction ring is a right triangle with the hypotenuse facing the left.

[0007] Preferably, the connecting frame includes an embedded ring fixedly installed on the left side of the adjusting nut, the outer side of the embedded ring is rotatably connected to an outer ring, the cross-section of the inner ring is L-shaped, and the cross-section of the outer ring is H-shaped; four groups of sliding rods are fixed to the left array of the outer ring, an annular cover is fixedly installed on the left end of the sliding rod, and four groups of arc grooves are opened through the circular surface array of the annular cover; four groups of sliding holes are opened through the right array of the protective cylinder shell, and the sliding rods are slidably connected in the sliding holes.

[0008] Preferably, the driving turntable includes a sealing ring sleeved on the outside of the annular cover, the sliding column is fixedly installed on the outer wall of the sealing ring, four groups of connecting blocks are fixedly arranged in an array on the inner wall of the sealing ring, swivels are fixedly arranged between the four groups of connecting blocks, and the side array of the swivel is penetrated by inclined grooves.

[0009] Preferably, the inner diameter of the sealing ring is equal to the outer diameter of the annular cover, the outer diameter of the sealing ring is equal to the inner diameter of the protective cylinder shell, the outer wall of the swivel fits on the inner wall of the annular cover, and the inner diameter of the swivel is equal to the inner diameter of the annular cover.

[0010] Preferably, the clamping assembly includes six groups of guide rails fixed in an array on the left side wall of the annular cover, each of the guide rails is slidably connected with a slide seat, a second slide column is fixedly installed on the right side of the slide seat, the second slide column is slidably connected in the inclined groove, an arc-shaped clamping plate is fixedly installed at one end of the slide seat, and the arc-shaped clamping plate is fitted on the surface of the hose.

[0011] Preferably, an inclined portion is provided at the right end of the arc-shaped clamping plate, and the inclination angle of the inclined portion is the same as the inclination angle of the second outer wall of the convex ring.

[0012] Preferably, the limiting assembly includes a protective shell fixedly installed on the right side of the protective cylinder shell, two cross bars are fixedly installed between the left and right side walls of the protective shell, one sliding rod passes through the protective shells, an annular friction belt is provided on the outer side of the two cross bars and the sliding rod, and the sliding rod fits on the inner surface of the annular friction belt; a fixing nut is provided on the top of the protective shell, a bolt is connected to the inner thread of the fixing nut, and the bottom end of the bolt abuts against the outer surface of the annular friction belt.

[0013] Compared with the prior art, the present invention has the following beneficial effects: the constant pressure water supply system for aquaculture drinking water lines, by screwing the adjusting nut, makes the adjusting nut rotate and move to the right, under the connecting action of the connecting frame, makes the driving turntable and the clamping assembly move to the right synchronously, the sliding column 1 slides inside the spiral groove, makes the sealing ring and the rotating ring rotate; the rotating ring is located at the side wall of the inclined groove to squeeze the sliding column 2, and pushes the sliding column 2 and the sliding seat to slide along the guide rail, so that the arc clamping plate fits on the surface of the hose; the arc clamping plate increases the squeezing force on the hose while pushing the hose to the right, squeezes the hose from the outside through the arc clamping plate, and the convex ring 2 and the friction ring support the hose from the inside, so that the hose is deformed, thereby eliminating the friction between the convex ring 2 and the hose. The gap between the ring and the hose ensures the sealing effect, and has the effect of convenient and quick connection between the pressure-regulating water supply device and the water pipe, and good (stable) sealing effect; the constant pressure water supply system for aquaculture drinking water lines pushes the hose to the right while squeezing the surface of the hose through the arc-shaped clamping plate. In addition to applying squeezing force to the hose, the arc-shaped clamping plate also applies a thrust to the hose to restrain the hose from moving to the left, thereby ensuring a stable connection between the hose and the connector; the constant pressure water supply system for aquaculture drinking water lines restrains the left and right movement of the connecting frame through the friction force of the annular friction belt on the sliding rod, and has a good limiting effect on the connecting frame. During use, it can prevent the threads of the adjusting nut and the surface of the connecting head from loosening, ensuring that the driving turntable and the clamping assembly remain in the current position, thereby ensuring the fixing effect of the hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of a constant pressure water supply system for aquaculture drinking water lines in an embodiment; Figure 2 This is a schematic diagram of the three-dimensional structure of the constant pressure water supply system for aquaculture drinking water lines in the embodiment without the constant pressure water supply device; Figure 3 It is a schematic diagram of the main cross-sectional structure of the constant pressure water supply system for aquaculture drinking water lines in the embodiment without the constant pressure water supply device; Figure 4 This is a schematic diagram of the structure of the constant pressure water supply system for aquaculture drinking water lines in an embodiment in which the connector and the hose are separated; Figure 5 It is a schematic diagram of the three-dimensional structure of the constant pressure water supply system for aquaculture drinking water lines in the embodiment with the protective cylinder shell and the connector separated; Figure 6 This is a schematic diagram of the three-dimensional structure of a connecting frame for a constant pressure water supply system for aquaculture drinking water lines in an embodiment; Figure 7 It is a schematic diagram of the three-dimensional structure of the driving turntable and the clamping assembly of the constant pressure water supply system for the aquaculture drinking water line in the embodiment; Figure 8This is a schematic diagram of the structure of a driving turntable for a constant pressure water supply system for aquaculture drinking water lines in an embodiment; Fig. 9 It is a schematic diagram of the three-dimensional structure of the limiting component of the constant pressure water supply system for the aquaculture drinking water line in the embodiment.

[0015] In the figure: 100, constant pressure water supply device; 200, connector; 300, hose; 400, protective shell; 500, adjusting nut; 600, connecting frame; 700, driving turntable; 800, clamping assembly; 900, limit assembly; 201, convex ring 1; 202, convex ring 2; 203, friction ring; 401, sliding hole; 402, spiral groove; 601, embedded ring; 602, outer ring; 603, slide rod; 604, annular cover; 605, arc groove; 701, sealing ring; 702, slide column one; 703, connecting block; 704, swivel; 705, inclined groove; 801, guide rail; 802, slide seat; 803, slide column two; 804, arc splint; 805, inclined part; 901, protective shell; 902, cross bar; 903, annular friction belt; 904, fixing nut; 905, bolt. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0017] Example: See Figure 1-Figure 9 A constant pressure water supply system for aquaculture drinking water lines includes a constant pressure water supply device 100, two connectors 200 are connected to the top of the constant pressure water supply device 100, and a hose 300 is sleeved on the other end of the connector 200. One of the hoses 300 is used as a water inlet pipe, and the other hose 300 is used as a water outlet pipe. A protective shell 400 is fixedly installed in the middle of the outer wall of the connector 200, and the outer wall surface of the connector 200 is provided with a thread. The connector 200 is threadedly connected to an adjusting nut 500 through the thread, and the adjusting nut 500 is located between the protective shell 400 and the constant pressure water supply device 100.

[0018] Among them, the adjusting nut 500 is rotatably connected to the connecting frame 600 near the side of the protective cylinder shell 400, and the connecting frame 600 is slidably connected to the protective cylinder shell 400. In the process of screwing the adjusting nut 500, the connecting frame 600 rotates relative to the adjusting nut 500, and the lateral displacement of the adjusting nut 500 drives the connecting frame 600 to slide relative to the protective cylinder shell 400. One end of the connecting frame 600 located inside the protective cylinder shell 400 is rotatably connected to the driving turntable 700, and the protective cylinder shell 400 is penetrated by the circumferential surface array and has two groups of spiral grooves 402. Two sliding posts 702 are fixedly installed on the outer wall of the driving turntable 700, and the sliding posts 702 are slidably connected in the spiral grooves 402. Therefore, in the process of the connecting frame 600 sliding to the right relative to the protective cylinder shell 400, the sliding posts 702 slide inside the spiral grooves 402, so that the sliding posts 702 rotate and move to the right.

[0019] The driving turntable 700 has a clamping assembly 800 slidably connected to the side array, and the clamping assembly 800 is slidably connected to the inner side of the connecting frame 600. During the rotation of the driving turntable 700, the clamping assembly 800 is driven to move toward the surface of the hose 300, so that the clamping assembly 800 is clamped on the surface of the hose 300 to squeeze the hose 300. At the same time, the clamping assembly 800 moves to the right following the connecting frame 600, so that the clamping assembly 800 squeezes the hose 300 while pushing the hose 300 to the right, so that the hose 300 is tightly connected with the connector 200.

[0020] See also Figure 3-Figure 4 , a convex ring 1 201 and a convex ring 202 are fixedly installed on the outer wall of one end of the connector 200 away from the constant pressure water supply device 100. The convex ring 1 201 is located on the left side of the convex ring 202. The outer diameter of the convex ring 1 201 gradually decreases from left to right, and the outer diameter of the convex ring 202 gradually increases from left to right. A friction ring 203 is fixed on the outer wall array of the convex ring 202. The cross section of the friction ring 203 is a right triangle, and the hypotenuse faces the left side. Initially, the clamping assembly 800 is located between the convex ring 1 201 and the convex ring 202. When the clamping assembly 800 squeezes the hose 300 and pushes the hose 300 to the right, the mutual squeezing force between the hose 300 and the convex ring 202 gradually increases, ensuring the sealing effect between the hose 300 and the convex ring 202. And by setting the friction ring 203, the sealing effect between the hose 300 and the convex ring 202 is further enhanced.

[0021] See also Figure 5-Figure 7The connecting frame 600 includes an inner ring 601 fixedly mounted on the left side of the adjusting nut 500, and an outer ring 602 is rotatably connected to the outer side of the inner ring 601. The cross section of the inner ring 601 is L-shaped, and the cross section of the outer ring 602 is H-shaped. Thus, the outer ring 602 is sleeved on the outer side of the inner ring 601, and the outer ring 602 can rotate relative to the inner ring 601. Four groups of sliding rods 603 are fixed in an array on the left side of the outer ring 602, and four groups of sliding holes 401 are opened in an array on the right side of the protective cylinder shell 400, and the sliding rods 603 are slidably connected in the sliding holes 401. An annular cover 604 is fixedly mounted on the left end of the sliding rod 603, and the annular cover 604 is inside the protective cylinder shell 400. Four groups of arc grooves 605 are opened in an array on the circumferential surface of the annular cover 604.

[0022] See also Figure 6-Figure 8 The driving turntable 700 includes a sealing ring 701 sleeved on the outer side of the annular cover 604. The inner diameter of the sealing ring 701 is equal to the outer diameter of the annular cover 604, and the outer diameter of the sealing ring 701 is equal to the inner diameter of the protective shell 400. The sliding column 1 702 is fixedly installed on the outer wall of the sealing ring 701, and the two sliding columns 1 702 are symmetrical about the center of the sealing ring 701. Four groups of connecting blocks 703 are fixedly arranged in an array on the inner wall of the sealing ring 701, and a rotating ring 704 is fixedly installed between the four groups of connecting blocks 703. The outer wall of the rotating ring 704 is attached to the inner wall of the annular cover 604, and the inner diameter of the rotating ring 704 is equal to the inner diameter of the annular cover 604. An inclined groove 705 is opened through the side array of the rotating ring 704.

[0023] See also Figure 7 The clamping assembly 800 includes six sets of guide rails 801 fixed in an array on the left side wall of the annular cover 604. A slide seat 802 is slidably connected in each guide rail 801. Each guide rail 801 is composed of two groove-shaped plates with a U-shaped cross section. The width of the left and right sides of the slide seat 802 is smaller than the width of the middle part, so that the left and right sides of the slide seat 802 are slidably connected in the two groove-shaped plates. Moreover, the right side of the middle part of the slide seat 802 is flush with the right side of the guide rail 801, and the swivel 704 is attached to the guide rail 801 and the right side of the slide seat 802.

[0024] A second slide post 803 is fixedly installed on the right side of the slide seat 802, and the second slide post 803 is slidably connected in the inclined groove 705. An arc-shaped clamping plate 804 is fixedly installed on one end of the slide seat 802, so that when the rotating ring 704 slides, the rotating ring 704 is located at the side wall of the inclined groove 705 to squeeze the second slide post 803, driving the slide seat 802 to slide along the guide rail 801, so that the arc-shaped clamping plate 804 fits on the surface of the hose 300. An inclined portion 805 is provided at the right end of the arc-shaped clamping plate 804, and the inclined angle of the inclined portion 805 is the same as the inclined angle of the outer wall of the second convex ring 202. Therefore, the hose 300 is clamped by the inclined portion 805 and the second convex ring 202, so as to prevent the end of the hose 300 from bending or being damaged when the arc-shaped clamping plate 804 clamps the hose 300 and pushes it to the right.

[0025] See also Fig. 9 The limit assembly 900 includes a protective shell 901 fixedly mounted on the right side of the protective shell 400, two cross bars 902 fixedly mounted between the left and right side walls of the protective shell 901, one of the slide bars 603 passes through the protective shell 901, and an annular friction belt 903 is sleeved on the outer side of the two cross bars 902 and the slide bar 603, and the slide bar 603 fits on the inner surface of the annular friction belt 903; a fixing nut 904 is arranged on the top of the protective shell 901, and a bolt 905 is connected to the inner thread of the fixing nut 904, and the bottom end of the bolt 905 abuts on the outer surface of the annular friction belt 903. By screwing the bolt 905, the bolt 905 pushes the annular friction belt 903 downward, thereby increasing the pressure between the annular friction belt 903 and the slide bar 603, and then increasing the friction between the annular friction belt 903 and the slide bar 603, and inhibiting the slide bar 603 from sliding relative to the protective shell 400.

[0026] When in use, first, the hose 300 is sleeved on the outside of the convex ring 1 201 and pushed to the right to move the end of the hose 300 to the left end of the convex ring 202; at this time, the hose 300 is located directly below the arc clamping plate 804; then, the adjusting nut 500 is screwed to make the adjusting nut 500 rotate and move to the right, and the embedded ring 601 rotates synchronously, and drives the outer ring 602, the sliding rod 603 and the annular cover 604 to move to the right, and drives the turntable 700 and the clamping assembly 800 to move to the right following the annular cover 604; in the process of driving the turntable 700 to move to the right, the sliding column 1 702 slides inside the spiral groove 402, so that the sealing ring 701 and the rotating ring 704 rotate; the rotating ring 704 is located at the side wall of the inclined groove 705 to squeeze the sliding column 2 803, and push the sliding column 2 803 and the slide seat 802 slide along the guide rail 801, so that the arc clamping plate 804 fits on the surface of the hose 300; then the clamping assembly 800 moves to the right following the annular cover 604, so that the arc clamping plate 804 increases the squeezing force on the hose 300 and pushes the hose 300 to the right; the right end of the hose 300 is sleeved on the outside of the convex ring 202, and then the friction ring 203 is set to ensure the firmness of the connection between the hose 300 and the connector 200; and the arc clamping plate 804 squeezes the hose 300 from the outside, and the convex ring 202 and the friction ring 203 support the hose 300 from the inside, so that the hose 300 is deformed, thereby eliminating the gap between the convex ring 202 and the hose 300, and between the friction ring 203 and the hose 300, and ensuring the sealing effect. In the constant pressure water supply system for the aquaculture drinking water line in this embodiment, during the pressure test process, the water supply test pressure of the drinking water pipe is frequently adjusted (the water pressure of 0.6Mpa is maintained for 1 minute - the water pressure of 1Mpa is maintained for 1 minute, and switched repeatedly). After maintaining the pressure continuously for ten days, there is no leakage at the connector.

[0027] In addition, the constant pressure water supply device can adopt an intelligent water supply device capable of realizing automatic control, and its control system part can be provided with: Constant pressure water supply interface, this display interface can display the set pressure value, actual pressure value, and allowable error value of the constant pressure water supply device with a maximum of 8 columns and 12 layers, and can display the actual pressure value in a bar graph; click to enlarge the bar graph display of this interface, and can set the pressure value, actual pressure value, and allowable error value; Manual setting interface, each constant pressure water supply can be manually operated, and the pressure adjustment value can be set as needed (the adjustment value is displayed as a percentage of the sliding switch); The phased automatic pressure adjustment interface allows you to freely set the required water level pressure value according to the needs of the breeding age, for example: the default water level is 5cm for 1 day old, 10cm for 7 days old, 15cm for 14 days old, 20cm for 21 days old, 25cm for 28 days old, 30cm for 35 days old, etc. You can also freely set the water level height of the day, and you can freely set the required time period, for example: the default water level height is 10cm from 0:00 to 4:00, 45cm from 4:00 to 8:00, 25cm from 8:00 to 11:00, 45cm from 11:00 to 13:00, 20cm from 13:00 to 17:00, 45cm from 17:00 to 19:00, and 10cm from 19:00 to 0:00. A maximum of 8 time period settings.

[0028] During the breeding cycle, the amount of water required for the growth of chickens varies at different stages. The pressure of the constant pressure water supply device is adjusted as needed, and the water pressure values ​​required for different ages are set to ensure the drinking water and growth stability of the chickens, achieve scientific breeding, and save costs.

Claims

1. A constant pressure water supply system for an aquaculture drinking water line, comprising a constant pressure water supply device (100), characterized in that: The top of the constant pressure water supply device (100) is connected to two connectors (200), and the other end of the connector (200) is sleeved with a hose (300); A protective cylinder shell (400) is fixedly mounted on the middle of the outer wall of the connector (200); a thread is provided on the outer wall surface of the connector (200); the connector (200) is threadedly connected to an adjusting nut (500) via the thread; the adjusting nut (500) is located between the protective cylinder shell (400) and the constant pressure water supply device (100); a connecting frame (600) is rotatably connected to a side of the adjusting nut (500) close to the protective cylinder shell (400); the connecting frame (600) penetrates and is slidably connected to the protective cylinder shell (400); the connecting frame (600) is located inside the protective cylinder shell (400). One end of the driving turntable (700) is rotatably connected to the driving turntable (700); two groups of spiral grooves (402) are formed in an array on the circumferential surface of the protective cylinder shell (400); two sliding columns (702) are fixedly mounted on the outer wall of the driving turntable (700); the sliding columns (702) are slidably connected in the spiral grooves (402); a clamping assembly (800) is slidably connected to the side array of the driving turntable (700); the clamping assembly (800) is slidably connected to the inner side of the connecting frame (600); and during the rotation of the driving turntable (700), the clamping assembly (800) is driven to move toward the surface of the hose (300).

2. The constant pressure water supply system according to claim 1, characterized in that: A convex ring 1 (201) and a convex ring 2 (202) are fixedly mounted on the outer wall of one end of the connector (200) away from the constant pressure water supply device (100); the convex ring 1 (201) is located on the left side of the convex ring 2 (202); the outer diameter of the convex ring 1 (201) gradually decreases from left to right; the outer diameter of the convex ring 2 (202) gradually increases from left to right; a friction ring (203) is fixedly mounted on the outer wall of the convex ring 2 (202); the cross section of the friction ring (203) is a right triangle, with the hypotenuse facing the left side.

3. The constant pressure water supply system according to claim 1, characterized in that: The connecting frame (600) comprises an inner ring (601) fixedly mounted on the left side of the adjusting nut (500), an outer ring (602) being rotatably connected to the outer side of the inner ring (601), the inner ring (601) having an L-shaped cross section, and the outer ring (602) having an H-shaped cross section; four groups of sliding rods (603) are fixedly mounted in an array on the left side of the outer ring (602), an annular cover (604) is fixedly mounted on the left end of the sliding rod (603), and four groups of arc grooves (605) are arranged in an array on the circumferential surface of the annular cover (604); four groups of sliding holes (401) are arranged in an array on the right side of the protective cylinder shell (400), and the sliding rods (603) are slidably connected in the sliding holes (401).

4. The constant pressure water supply system according to claim 1, characterized in that: The driving turntable (700) comprises a sealing ring (701) sleeved on the outside of an annular cover (604); the sliding column (702) is fixedly mounted on the outer wall of the sealing ring (701); four groups of connecting blocks (703) are fixedly mounted in an array on the inner wall of the sealing ring (701); a rotating ring (704) is fixedly mounted between the four groups of connecting blocks (703); and an inclined groove (705) is arranged in an array on the side of the rotating ring (704).

5. The constant pressure water supply system according to claim 4, characterized in that: The inner diameter of the sealing ring (701) is equal to the outer diameter of the annular cover (604), the outer diameter of the sealing ring (701) is equal to the inner diameter of the protective cylinder shell (400), the outer wall of the rotating ring (704) is fitted on the inner wall of the annular cover (604), and the inner diameter of the rotating ring (704) is equal to the inner diameter of the annular cover (604).

6. The constant pressure water supply system according to claim 1, characterized in that: The clamping assembly (800) comprises six groups of guide rails (801) fixed in an array on the left side wall of the annular cover (604), each of the guide rails (801) being slidably connected to a slide seat (802), a second slide post (803) being fixedly installed on the right side of the slide seat (802), the second slide post (803) being slidably connected in the inclined groove (705), an arc-shaped clamping plate (804) being fixedly installed on one end of the slide seat (802), and the arc-shaped clamping plate (804) being fitted on the surface of the hose (300).

7. The constant pressure water supply system according to claim 6, characterized in that: The right end of the arc-shaped clamping plate (804) is provided with an inclined portion (805), and the inclined angle of the inclined portion (805) is the same as the inclined angle of the outer wall of the second convex ring (202).

8. The constant pressure water supply system according to claim 1, characterized in that: The limit assembly (900) comprises a protective shell (901) fixedly mounted on the right side of the protective cylinder shell (400); two cross bars (902) are fixedly mounted between the left and right side walls of the protective shell (901); one of the slide bars (603) passes through the protective shell (901); an annular friction belt (903) is sleeved on the outer sides of the two cross bars (902) and the slide bar (603); the slide bar (603) is fitted on the inner surface of the annular friction belt (903); a fixing nut (904) is arranged on the top of the protective shell (901); a bolt (905) is connected to the inner thread of the fixing nut (904); the bottom end of the bolt (905) abuts against the outer surface of the annular friction belt (903).

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