Tail end sterilization device for secondary water supply

Abstract

The invention belongs to the technical field of secondary water supply sterilization, in particular to a tail end sterilization device for secondary water supply, and provides the following scheme: the tail end sterilization device comprises a box shell, one side of the box shell is communicated with a water inlet connecting pipe, the other side of the box shell is communicated with a water outlet connecting pipe, two groups of transparent sleeve shells are mounted in the box shell, and a plurality of ultraviolet sterilization lamps are mounted in the transparent sleeve shells; a water flowing cavity is formed between the inner wall of the box shell and the outer wall of the transparent sleeve shell, bending parts are arranged at the two ends of the transparent sleeve shell, and arc-shaped parts are arranged at the positions, corresponding to the bending parts, of the box shell. The ultraviolet sterilization lamps distributed in the transparent sleeve shell are used for sterilization operation, water flow is dispersed through collision of the transparent sleeve shell, disperses and circulates between the bent part and the arc-shaped part, and continuously flows in the arc-shaped cavities of the bent part and the arc-shaped part in a direction changing mode, so that the washing effect of the water flow on the inner wall of the water flowing cavity is improved, and the service life of the water flow is prolonged. And the influence of dirt retention on the sterilization effect of the ultraviolet sterilization lamp is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of secondary water supply sterilization, and in particular to a terminal sterilization device for secondary water supply. Background Art

[0002] The water often needs to be sterilized at the end of the secondary water supply.

[0003] Referring to the patent publication number CN119285037A, a secondary water supply terminal sterilization device is disclosed, comprising: a rotating mechanism, the rotating mechanism is arranged inside the sterilization device body, and the number of the rotating mechanisms is two, and the sterilization rotation speed is adjusted according to the water pressure; by setting a limit mechanism and an adjustment mechanism, when performing secondary water supply sterilization for residents of high-rise buildings, the distance between the ultraviolet lamp sleeve in the limit mechanism and the water supply transparent pipe inside the sterilization device body can be adjusted according to the water pressure of the conveying water; However, during long-term use, the water in the sterilization chamber always flows in one direction, which easily forms dirt on the inner wall and affects the sterilization effect of the ultraviolet lamp. Summary of the invention

[0004] Based on the technical problems of the background technology, the present invention proposes a terminal sterilization device for secondary water supply.

[0005] The terminal sterilization device for secondary water supply proposed in the present invention comprises a box shell, one side of the box shell is connected to a water inlet connecting pipe, and the other side of the box shell is connected to a water outlet connecting pipe, two groups of transparent shells are installed in the box shell, a plurality of ultraviolet sterilization lamps are installed in the transparent shells, a water flow cavity is formed between the inner wall of the box shell and the outer wall of the transparent shell, both ends of the transparent shell are arranged as curved parts, and the position of the box shell corresponding to the curved part is arranged as an arc part.

[0006] Preferably, movable plates are provided at both ends of the transparent shell, the ends of the movable plates slide along the outer wall of the curved portion, the ends of the movable plates away from the curved portion slide along the inner wall of the arc-shaped portion, the movable plates reciprocate along the curved portion, and mesh holes are provided on the sides of the movable plates.

[0007] Preferably, the movable plates at both ends of the transparent casing are symmetrically arranged, and the two movable plates at the same end of two adjacent transparent casings rotate in the same direction.

[0008] Preferably, the water flow cavity is arranged between the curved portion and the arc portion to form an arc-shaped cavity, and the water flow cavity is provided with horizontal cavity one, horizontal cavity two and horizontal cavity three in sequence from the water inlet connecting pipe toward the water outlet connecting pipe.

[0009] Preferably, a bottom cover is sealed and installed at the bottom of the box shell, a turntable is rotatably arranged at a position corresponding to the bottom cover and the curved portion, the movable plate is fixed between the turntable, the turntable and the curved portion are arranged concentrically, a rotating shaft is arranged at the center position of the bottom of the turntable, the four rotating shafts are arranged to rotate synchronously through a synchronous belt, and the bottom end of one of the rotating shafts is transmission-connected to a motor.

[0010] Preferably, the mesh on the movable plate is provided with hole one, hole two and hole three, hole one is vertically distributed at one end position close to the transparent cover, hole two is vertically distributed at one end position away from the transparent cover, and hole three is distributed between hole one and hole two.

[0011] Preferably, the hole 1 is arranged to be an arc-shaped structure with a middle position arched toward a direction away from the transparent cover, and the hole 2 is arranged to be an arc-shaped structure with a middle position arched toward a direction close to the transparent cover.

[0012] Preferably, a top cover is sealed at the top of the box shell, and guide rail frames are installed at positions on the bottom of the top cover corresponding to horizontal cavity one, horizontal cavity two and horizontal cavity three. The guide rail frame is arranged parallel to the extension direction of horizontal cavity one, and a slider is connected to the guide rail frame for limited sliding. Two friction parts are connected to the bottom of the slider, and the outer wall of the friction part contacts the outer wall of the transparent shell or the inner wall of the box shell, and the outer wall of the friction part is arranged to be a groove with a V-shaped cross-section.

[0013] Preferably, a connecting rod extending vertically downward is installed at the bottom of the slider, and a horizontally placed connecting sleeve is installed at the bottom end of the connecting rod. The connecting sleeve is vertically arranged with the guide rail frame, and a connecting shaft is rotatably connected in the connecting sleeve, and two friction parts are respectively installed at both ends of the connecting shaft.

[0014] Preferably, limiting blocks of cylindrical structure are installed on both sides of the sliding block, and limiting grooves are arranged on both sides of the guide rail frame, and the limiting blocks roll in the limiting grooves.

[0015] The beneficial effects of the present invention are: In the present invention, the ultraviolet germicidal lamps distributed in the transparent shell are used for sterilization. The water flow is dispersed by the collision of the transparent shell, and is dispersed and circulated between the curved part and the arc-shaped part, and continuously changes direction in the curved chambers of the curved part and the arc-shaped part, thereby improving the flushing effect of the water flow on the inner wall of the water flow chamber, and effectively reducing the influence of dirt retention on the sterilization effect of the ultraviolet germicidal lamp.

[0016] In the present invention, the overall setting in the water flow chamber and the movement setting of the movable plate make the water flow chamber in an active and changing state, which effectively avoids the adhesion of dirt during long-term use and affects the effect of the sterilization operation, thereby improving the effect of long-term continuous sterilization of water supply.

[0017] In the present invention, the friction part can move horizontally with the slider, the friction part can deflect around the connecting sleeve with the connecting shaft, and the friction part can deflect around the limit block of the cylindrical structure with the slider, thereby improving the movement change effect of the friction part, thereby improving the cleaning effect of the inner walls of horizontal cavity one, horizontal cavity two and horizontal cavity three. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the terminal sterilization device for secondary water supply proposed by the present invention; Figure 2 This is a schematic diagram of the internal structure of the box shell of the terminal sterilization device for secondary water supply proposed by the present invention; Figure 3 This is a schematic diagram of the transparent casing structure of the terminal sterilization device for secondary water supply proposed by the present invention; Figure 4 This is a schematic diagram of the structure of the bottom position of the turntable of the terminal sterilization device for secondary water supply proposed by the present invention; Figure 5 A schematic diagram of the movable plate state of the terminal sterilization device for secondary water supply proposed by the present invention; Figure 6 This is a structural schematic diagram of the movable plate state 2 of the terminal sterilization device for secondary water supply proposed by the present invention; Figure 7 This is a schematic diagram of the distribution structure of the movable plate of the terminal sterilization device for secondary water supply proposed by the present invention; Figure 8 This is a schematic diagram of the movable plate structure of the terminal sterilization device for secondary water supply proposed by the present invention; Fig. 9 This is a schematic diagram of the structure of hole 1, hole 2 and hole 3 of the terminal sterilization device for secondary water supply proposed by the present invention; Fig.10 This is a schematic diagram of the top cover and guide rail frame structure of the terminal sterilization device for secondary water supply proposed by the present invention; Fig.11 This is a schematic diagram of the distribution structure of the guide rail frame of the terminal sterilization device for secondary water supply proposed by the present invention; Fig.12 This is a schematic diagram of the guide rail frame and friction component structure of the terminal sterilization device for secondary water supply proposed by the present invention.

[0019] In the figure: 1 box shell, 101 arc portion, 2 bottom cover, 3 top cover, 4 water inlet connecting pipe, 5 water outlet connecting pipe, 6 transparent casing, 601 bending portion, 7 sealing plate, 8 ultraviolet germicidal lamp, 9 water flow cavity, 901 arc cavity, 902 horizontal cavity one, 903 horizontal cavity two, 904 horizontal cavity three, 10 mounting frame, 11 turntable, 111 rotating shaft, 12 movable plate, 121 mesh plate one, 122 mesh plate two, 13 motor, 14 guide frame, 15 slider, 16 friction member, 161 groove, 17 connecting rod, 18 connecting sleeve, 19 connecting shaft, 20 hole one, 21 hole two, 22 hole three. DETAILED DESCRIPTION

[0020] Example 1: Reference Figure 1-Figure 9 , a terminal sterilization device for secondary water supply, comprising a box shell 1, one side of the box shell 1 is connected with a water inlet connecting pipe 4, the other side of the box shell 1 is connected with a water outlet connecting pipe 5, two groups of transparent shells 6 are installed in the box shell 1, and a plurality of ultraviolet sterilization lamps 8 are installed in the transparent shell 6 along the inner wall of the shell, and a water flow cavity 9 is formed between the inner wall of the box shell 1 and the outer wall of the transparent shell 6. It should be noted that: the water flow cavity 9 is connected from the water inlet connecting pipe 4 to the water outlet connecting pipe 5, and an empty area is left between two adjacent transparent shells 6, and empty areas are left at various positions of the outer wall of the transparent shell 6 and the inner wall of the box shell 1; both ends of the transparent shell 6 are arranged to face outward The curved portion 601 is arched in an arc-shaped structure, and the position of the box shell 1 corresponding to the curved portion 601 is set to be an arc-shaped portion 101 that is arched outward in an arc-shaped structure. During use, water supply enters the water flow cavity 9 from the water inlet connecting pipe 4, and the ultraviolet sterilization lamp 8 distributed in the transparent shell 6 is used for sterilization. The water flow is dispersed by the collision of the transparent shell 6, and is dispersed and circulated between the curved portion 601 and the arc-shaped portion 101, and continuously changes direction in the arc-shaped chambers of the curved portion 601 and the arc-shaped portion 101, thereby improving the flushing effect of the water flow on the inner wall of the water flow cavity 9, and effectively reducing the influence of dirt retention on the sterilization effect of the ultraviolet sterilization lamp 8.

[0021] In the present invention, movable plates 12 are provided at both ends of the transparent shell 6. It should be noted that: a movable plate 12 is provided at the end position of each transparent shell 6. For example, there are two transparent shells 6 in the figure, that is, four movable plates 12 are provided accordingly; the end of the movable plate 12 slides along the outer wall of the curved portion 601, and the end of the movable plate 12 away from the curved portion 601 slides along the inner wall of the arc-shaped portion 101, and the movable plate 12 reciprocates along the curved portion 601. A mesh hole is provided on the side of the movable plate 12 for penetration, so that in the process of water circulation for sterilization, the movable plate 12 reciprocates at the corresponding positions around the curved portion 601 and the arc-shaped portion 101, so that the end of the movable plate 12 is used to clean the outer wall of the curved portion 601 and the inner wall of the arc-shaped portion 101, thereby avoiding the accumulation of residual dirt that affects the sterilization effect of the ultraviolet germicidal lamp 8.

[0022] In the present invention, the movable plates 12 at both ends of the transparent cover 6 are symmetrically arranged, and the two movable plates 12 at the same end of two adjacent transparent cover shells 6 rotate in the same direction, that is, the movable plates 12 at the same end of multiple transparent cover shells 6 will rotate from one side to the other side at the same time in the same rotation direction, and the movable plates 12 at both ends of a transparent cover shell 6 will move in different horizontal directions on both sides respectively.

[0023] In the present invention, the water flow cavity 9 is arranged between the curved portion 601 and the arc portion 101 to form an arc cavity 901, and the two ends of the movable plate 12 are in sliding contact with the inner wall of the arc cavity 901. The water flow cavity 9 is sequentially provided with a horizontal cavity 1 902, a horizontal cavity 2 903 and a horizontal cavity 3 904 from the water inlet connecting pipe 4 toward the water outlet connecting pipe 5. The horizontal cavity 1 902, the horizontal cavity 2 903 and the horizontal cavity 3 904 extend horizontally in the direction between the two ends, and the horizontal cavity 1 902, the horizontal cavity 2 903 and the horizontal cavity 3 904 are arranged in parallel. When the movable plate 12 rotates to the edge positions on both sides, it is arranged perpendicular to the horizontal cavity 1 902. It should be noted that: the movable plates 12 arranged at the two end positions of the transparent casing 6 are respectively arranged as a mesh plate 1 121 and a mesh plate 2 122, and the same end direction of the two transparent casings 6 is arranged as the same mesh plate, that is, the movable plates 12 located at the same end direction of the two transparent casings 6 are all mesh plates 121, or are all mesh plates 2 122; like Figure 5 The use state 1 shown is: the mesh plate 1 121 is located at one side of the corresponding transparent casing 6 and extends horizontally toward the water inlet connecting pipe 4, and the mesh plate 2 122 is located at the corresponding transparent casing 6 and extends horizontally toward the water outlet connecting pipe 5; at this time, because one end of the horizontal cavity 1 902 is blocked by the mesh plate 1 121, most of the water flows in the direction away from the mesh plate 1 121; and the two ends of the horizontal cavity 2 903: one end and the water inlet connecting pipe 4 will be blocked by two mesh plates 1 121, and the other end and the water inlet connecting pipe 4 will be blocked by one mesh plate 2 122, that is, there is a difference in the water pressure impact force of the two ends toward the horizontal cavity 2 903, so that most of the water in the horizontal cavity 2 903 will flow from the mesh plate 2 122 toward the mesh plate 1 121; the water flows at both ends of the horizontal cavity 3 904 will flow toward the water outlet connecting pipe 5 in the middle position, so that the water flows collide; like Figure 6 In the second use state shown in FIG. 1 , the mesh plate 121 is located on the side of the transparent casing 6 extending horizontally toward the water outlet connecting pipe 5, and the mesh plate 2 122 is located on the side of the transparent casing 6 extending horizontally toward the water inlet connecting pipe 4. At this time, because one end of the horizontal cavity 1 902 is blocked by the mesh plate 2 122, most of the water flows in a direction away from the mesh plate 2 122. It should be noted that this direction will be different from the direction shown in FIG. Figure 5The flow direction of the state 1 shown is opposite; and the two ends of the horizontal cavity 2 903: one end and the water inlet connecting pipe 4 will be blocked by a mesh plate 121, and the other end and the water inlet connecting pipe 4 will be blocked by two mesh plates 2 122, so that most of the water in the horizontal cavity 2 903 will flow from the mesh plate 121 to the mesh plate 2 122; the water flow at both ends of the horizontal cavity 3 904 will flow toward the water outlet connecting pipe 5 in the middle position, so that the water flow collides; During use, the movable plate 12 reciprocates along the outer wall of the curved portion 601 to clean the arc cavity 901, and the horizontal cavity 1 902 and the horizontal cavity 2 903 effectively avoid dirt residue due to the changing water flow direction, and the horizontal cavity 3 904 improves the cleaning effect due to the water convection from both ends toward the middle position; thereby, through the overall setting of the water flow cavity 9 and the movement setting of the movable plate 12, the water flow cavity 9 is in an active and changing state, which effectively avoids the adhesion of dirt during long-term use and the effect of the sterilization operation, thereby improving the effect of long-term continuous sterilization of water supply.

[0024] In the present invention, a bottom cover 2 is sealed and installed at the bottom of the box shell 1. A turntable 11 is rotatably installed at a position corresponding to the bottom cover 2 and the curved portion 601. A movable plate 12 is fixed between the turntable 11. The turntable 11 and the curved portion 601 are arranged concentrically. A rotating shaft 111 is arranged at the center position of the bottom of the turntable 11. The four rotating shafts 111 are synchronously rotated by a synchronous belt. The bottom end of one of the rotating shafts 111 is connected to a motor 13. It should be noted that a mounting frame 10 is installed at the bottom of the bottom cover 2. The outer wall of the motor 13 is connected to the mounting frame 10. It is fixedly installed between them; it should also be noted that: in order to prevent water from entering the transparent shell 6 due to the rotation of the turntable 11, a sealing plate 7 is installed at the bottom end of the transparent shell 6, and the bottom of the sealing plate 7 is fixedly fitted with the top outer wall of the bottom cover 2, thereby sealing the chamber in the transparent shell 6, even if the turntable 11 rotates and brings some water to the bottom of the transparent shell 6, it will not enter the transparent shell 6; thereby, the rotation operation of the four turntables 11 and the movable plate 12 is realized by the motor 13 and the synchronous belt, so that the four movable plates 12 can adaptively rotate back and forth periodically.

[0025] In the present invention, the mesh on the movable plate 12 is provided with a hole 20, a hole 21 and a hole 3 22, the hole 20 is vertically distributed at one end position close to the transparent cover 6, the hole 21 is vertically distributed at one end position away from the transparent cover 6, the hole 3 22 is distributed between the hole 20 and the hole 21, the hole 20 is arranged in an arc structure with the middle position arched in the direction away from the transparent cover 6, the two ends of the hole 20 are inclined toward the outer wall of the transparent cover 6, and the hole 21 is arranged in the middle position toward The arc-shaped structure is arched in the direction close to the transparent cover shell 6, and the two ends of the second hole 21 are inclined toward the inner wall of the box shell 1. On the one hand, through the curved and inclined setting of the hole 1 20 and the hole 2 21, the backflow will impact the outer wall of the transparent cover shell 6 or the inner wall of the box shell 1 when flowing from one end of the hole 1 20 or the hole 2 21 to the other end, so as to improve the cleaning effect; on the other hand, the water flow is dispersed by the difference in the water outlet directions of the hole 1 20, the hole 21 and the hole 3 22, so as to improve the effectiveness of the ultraviolet germicidal lamp 8 in irradiation and sterilization.

[0026] Example 2: Reference Figure 1-Figure 12 , a terminal sterilization device for secondary water supply, based on Example 1, a top cover 3 is sealed and installed on the top of the box shell 1, and a guide frame 14 is installed at the bottom of the top cover 3 at positions corresponding to the horizontal cavity 1 902, the horizontal cavity 2 903 and the horizontal cavity 3 904. The guide frame 14 is arranged parallel to the extension direction of the horizontal cavity 1 902, and a slider 15 is connected to the guide frame 14 in a limited sliding manner. Two friction members 16 are connected to the bottom of the slider 15. The outer wall of the friction member 16 contacts the outer wall of the transparent shell 6 or the inner wall of the box shell 1, and the outer wall of the friction member 16 is arranged to be a groove with a V-shaped cross-section. 161. During the process, as the movable plate 12 reciprocates around the position of the arc-shaped cavity 901, the water flow in the horizontal cavity 1 902, the horizontal cavity 2 903 and the horizontal cavity 3 904 will be disturbed. The structural setting of the groove 161 can improve the effect of the friction member 16 moving with the change of the water flow direction when the water flow direction changes, so that the friction member 16 will move along the guide frame 14 with the slider 15, thereby rubbing and cleaning the inner walls of the horizontal cavity 1 902, the horizontal cavity 2 903 and the horizontal cavity 3 904, thereby further improving the effectiveness of the sterilization operation during long-term use.

[0027] In the present invention, a connecting rod 17 extending vertically downward is installed at the bottom of the slider 15, and a horizontally placed connecting sleeve 18 is installed at the bottom end of the connecting rod 17. The connecting sleeve 18 is vertically arranged with the guide frame 14, and a connecting shaft 19 is rotatably connected in the connecting sleeve 18. Two friction members 16 are respectively installed at the two ends of the connecting shaft 19, and cylindrical limit blocks are installed on both sides of the slider 15. Limit grooves are arranged on both sides of the guide frame 14, and the limit blocks roll in the limit grooves. It should be noted that: the cross-section of the slider 15 is larger than the cross-section of the limit groove, so as to ensure the limiting effect; when the friction member 16 below is subjected to the force of the change of water flow, the friction member 16 can move horizontally with the slider 15, and the friction member 16 can deflect around the connecting sleeve 18 with the connecting shaft 19, and the friction member 16 can deflect around the cylindrical limit block with the slider 15, thereby improving the movement change effect of the friction member 16, thereby improving the cleaning effect of the inner wall of the horizontal cavity 1 902, the horizontal cavity 2 903 and the horizontal cavity 3 904.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A terminal sterilization device for secondary water supply, comprising a housing (1), one side of the housing (1) being connected to a water inlet connection pipe (4), and the other side of the housing (1) being connected to a water outlet connection pipe (5), characterized in that: Two groups of transparent casings (6) are installed in the box shell (1), a plurality of ultraviolet sterilization lamps (8) are installed in the transparent casing (6), a water flow cavity (9) is formed between the inner wall of the box shell (1) and the outer wall of the transparent casing (6), both ends of the transparent casing (6) are arranged as curved portions (601), and the position of the box shell (1) corresponding to the curved portion (601) is arranged as an arc portion (101).

2. The terminal sterilization device for secondary water supply according to claim 1, characterized in that: Movable plates (12) are provided at both ends of the transparent casing (6); the ends of the movable plates (12) slide along the outer wall of the curved portion (601); the ends of the movable plates (12) away from the curved portion (601) slide along the inner wall of the arc-shaped portion (101); the movable plates (12) reciprocate along the curved portion (601); and mesh holes are provided on the side surfaces of the movable plates (12).

3. The terminal sterilization device for secondary water supply according to claim 2, characterized in that: The movable plates (12) located at both ends of the transparent casing (6) are symmetrically arranged, and the two movable plates (12) located at the same end of two adjacent transparent casings (6) rotate in the same direction.

4. The terminal sterilization device for secondary water supply according to claim 3, characterized in that: The water flow chamber (9) is arranged between the curved portion (601) and the arc portion (101) to form an arc-shaped chamber (901), and the water flow chamber (9) is provided with a horizontal chamber 1 (902), a horizontal chamber 2 (903) and a horizontal chamber 3 (904) in sequence from the water inlet connecting pipe (4) toward the water outlet connecting pipe (5).

5. The terminal sterilization device for secondary water supply according to any one of claims 2 to 4, characterized in that: The bottom of the box shell (1) is sealed with a bottom cover (2), a rotating disk (11) is rotatably arranged at a position of the bottom cover (2) corresponding to the curved portion (601), a movable plate (12) is fixed between the rotating disk (11), the rotating disk (11) and the curved portion (601) are arranged cocentrically, a rotating shaft (111) is arranged at the center position of the bottom of the rotating disk (11), four rotating shafts (111) are arranged to rotate synchronously via a synchronous belt, and a motor (13) is transmission-connected to the bottom end of one of the rotating shafts (111).

6. The terminal sterilization device for secondary water supply according to claim 5, characterized in that: The mesh holes on the movable plate (12) are provided with hole one (20), hole two (21) and hole three (22), hole one (20) is vertically distributed at one end position close to the transparent cover (6), hole two (21) is vertically distributed at one end position away from the transparent cover (6), and hole three (22) is distributed between hole one (20) and hole two (21).

7. The terminal sterilization device for secondary water supply according to claim 6, characterized in that: The first hole (20) is arranged to be an arc-shaped structure with its middle position arched in a direction away from the transparent casing (6), and the second hole (21) is arranged to be an arc-shaped structure with its middle position arched in a direction close to the transparent casing (6).

8. The terminal sterilization device for secondary water supply according to claim 5, characterized in that: The top end of the box shell (1) is sealed with a top cover (3), and the bottom of the top cover (3) is provided with guide rail frames (14) at positions corresponding to the horizontal cavity one (902), the horizontal cavity two (903) and the horizontal cavity three (904). The guide rail frame (14) is arranged parallel to the extension direction of the horizontal cavity one (902), and a slider (15) is slidably connected to the guide rail frame (14). The bottom of the slider (15) is connected to two friction members (16), and the outer wall of the friction member (16) contacts the outer wall of the transparent casing (6) or the inner wall of the box shell (1), and the outer wall of the friction member (16) is arranged to form a groove (161) with a V-shaped cross-section.

9. The terminal sterilization device for secondary water supply according to claim 8, characterized in that: A connecting rod (17) extending vertically downward is installed at the bottom of the sliding block (15), a connecting sleeve (18) placed horizontally is installed at the bottom end of the connecting rod (17), the connecting sleeve (18) is vertically arranged with the guide rail frame (14), a connecting shaft (19) is rotatably connected in the connecting sleeve (18), and two friction members (16) are respectively installed at both ends of the connecting shaft (19).

10. The terminal sterilization device for secondary water supply according to claim 9, characterized in that: Limit blocks with cylindrical structures are installed on both sides of the slider (15), and limit grooves are arranged on both sides of the guide rail frame (14), and the limit blocks roll in the limit grooves.

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