Terminal sterilization device for secondary water supply

Abstract

The present invention belongs to the technical field of secondary water supply sterilization, and is particularly concerned with a terminal sterilization device for secondary water supply. The following scheme is proposed, comprising a box shell, one side of the box shell being connected to a water inlet connection pipe, and the other side of the box shell being connected to a water outlet connection pipe. Two groups of transparent shells are installed in the box shell, and 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 configured as curved portions, and the positions of the box shell corresponding to the curved portions are configured as arc-shaped portions. The present invention utilizes the ultraviolet sterilization lamps distributed in the transparent shell to perform sterilization operations. The water flow is dispersed by the collision of the transparent shell, and dispersed and circulated between the curved portion and the arc-shaped portion, and continuously changes direction in the arc-shaped chamber of the curved portion and the arc-shaped portion, thereby improving the flushing effect of the water flow on the inner wall of the water flow cavity and effectively reducing the influence of dirt retention on the sterilization effect of the ultraviolet sterilization lamp.

Description

Technical Field

[0001] The present invention relates to the technical field of secondary water supply sterilization, 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] Patent publication number CN119285037A discloses a secondary water supply terminal sterilization device, comprising: a rotating mechanism, two rotating mechanisms disposed within the sterilization device body, for adjusting the sterilization rotation speed according to the water pressure; a limiting mechanism and an adjusting mechanism are provided, so that when sterilizing secondary water supply to residents of high-rise buildings, the distance between the ultraviolet lamp sleeve within the limiting mechanism and the transparent water supply pipe within the sterilization device body can be adjusted according to the water pressure of the delivered water;

[0004] However, during long-term use, the water in the sterilization chamber always flows in one direction, which can easily form dirt on the inner wall and affect the sterilization effect of the ultraviolet lamp. Summary of the Invention

[0005] Based on the technical problems of the background technology, the present invention proposes a terminal sterilization device for secondary water supply.

[0006] The terminal sterilization device for secondary water supply proposed in the present invention includes 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, and multiple 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 configured as curved portions, and the position of the box shell corresponding to the curved portion is configured as an arc portion.

[0007] Preferably, movable plates are provided at both ends of the transparent cover, 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 portion, the movable plates rotate back and forth along the curved portion, and mesh holes are provided on the sides of the movable plates.

[0008] 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.

[0009] 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 sequentially provided with horizontal cavity one, horizontal cavity two and horizontal cavity three from the water inlet connecting pipe toward the water outlet connecting pipe.

[0010] Preferably, a bottom cover is sealed and installed at the bottom of the box shell, a turntable is rotatably provided 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 provided 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 connected to a motor for transmission.

[0011] 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.

[0012] Preferably, the first hole is configured to be an arc-shaped structure with its middle position arched toward a direction away from the transparent cover, and the second hole is configured to be an arc-shaped structure with its middle position arched toward a direction close to the transparent cover.

[0013] Preferably, a top cover is sealed at the top of the box shell, and guide rail frames are installed at the 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 limiting 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. The outer wall of the friction part is arranged to be a groove with a V-shaped cross-section.

[0014] 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 to 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.

[0015] Preferably, cylindrical limit blocks are installed on both sides of the slider, and limit grooves are provided on both sides of the guide rail frame, and the limit blocks roll in the limit grooves.

[0016] The beneficial effects of the present invention are:

[0017] In the present invention, sterilization is performed using ultraviolet germicidal lamps distributed in a transparent housing. Water flows through the collision and dispersion of the transparent housing, and disperses and flows between the curved portion and the arc-shaped portion, and continuously changes direction in the curved cavity of the curved portion and the arc-shaped portion, thereby improving the flushing effect of the water flow on the inner wall of the water cavity and effectively reducing the influence of dirt retention on the sterilization effect of the ultraviolet germicidal lamp.

[0018] In the present invention, the overall setting of the water flow chamber and the movement setting of the movable plate make the water flow chamber in an active and changing state, effectively avoiding the effect of dirt adhesion during long-term use that affects the effect of the sterilization operation, thereby improving the effect of long-term continuous sterilization of the water supply.

[0019] In the present invention, the friction part can move horizontally with the slider, and the friction part can deflect around the connecting sleeve along with the connecting shaft, and the friction part can deflect around the limit block of the cylindrical structure along 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

[0020] 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;

[0021] Figure 2 This is a schematic diagram of the internal structure of the housing of the terminal sterilization device for secondary water supply proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the transparent housing structure of the terminal sterilization device for secondary water supply proposed by the present invention;

[0023] 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;

[0024] Figure 5 This is a schematic diagram of the movable plate state and structure of the terminal sterilization device for secondary water supply proposed by the present invention;

[0025] Figure 6 This is a structural schematic diagram of the movable plate in state 2 of the terminal sterilization device for secondary water supply proposed by the present invention;

[0026] Figure 7 This is a schematic diagram of the distribution structure of the movable plates of the terminal sterilization device for secondary water supply proposed by the present invention;

[0027] 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;

[0028] Figure 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;

[0029] Figure 10 This is a schematic diagram of the top cover and guide rail structure of the terminal sterilization device for secondary water supply proposed by the present invention;

[0030] Figure 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;

[0031] Figure 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.

[0032] In the figure: 1 box shell, 101 curved portion, 2 bottom cover, 3 top cover, 4 water inlet connecting pipe, 5 water outlet connecting pipe, 6 transparent casing, 601 bent portion, 7 sealing plate, 8 ultraviolet germicidal lamp, 9 water flow chamber, 901 curved chamber, 902 horizontal chamber one, 903 horizontal chamber two, 904 horizontal chamber three, 10 mounting frame, 11 turntable, 111 rotating shaft, 12 movable plate, 121 screen one, 122 screen two, 13 motor, 14 guide rail 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

[0033] Example 1: Reference Figures 1-9 , a terminal sterilization device for secondary water supply, comprising a box shell 1, one side of the box shell 1 is connected to a water inlet connecting pipe 4, the other side of the box shell 1 is connected to a water outlet connecting pipe 5, two sets of transparent shells 6 are installed in the box shell 1, a plurality of ultraviolet germicidal lamps 8 are installed in the transparent shell 6 along the inner wall of the shell, 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, an empty space is left between two adjacent transparent shells 6, and an empty space is left at each position 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 set to face outward The curved portion 601 is arched into 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 into an arc-shaped structure. During use, water is supplied from the water inlet connecting pipe 4 into the water flow cavity 9, and the ultraviolet germicidal 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 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 germicidal lamp 8.

[0034] 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 rotates back and forth along the curved portion 601. A penetrating mesh is provided on the side of the movable plate 12, so that during the water circulation and sterilization process, the movable plate 12 rotates back and forth at the corresponding positions around the curved portion 601 and the arc-shaped portion 101, thereby utilizing the end of the movable plate 12 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.

[0035] 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 covers 6 rotate in the same direction, that is, the movable plates 12 at the same end of multiple transparent covers 6 will rotate from one side to the other at the same time in the same rotation direction, and the movable plates 12 at both ends of a transparent cover 6 will move in different horizontal directions on both sides.

[0036] In the present invention, the water flow chamber 9 is arranged between the curved portion 601 and the arc-shaped portion 101 to form an arc-shaped chamber 901, and the two ends of the movable plate 12 are in sliding contact with the inner wall of the arc-shaped chamber 901. The water flow chamber 9 is sequentially provided with a horizontal chamber 1 902, a horizontal chamber 2 903 and a horizontal chamber 3 904 from the water inlet connecting pipe 4 toward the water outlet connecting pipe 5. The horizontal chamber 1 902, the horizontal chamber 2 903 and the horizontal chamber 3 904 extend horizontally in the direction between the two ends, and the horizontal chamber 1 902, the horizontal chamber 2 903 and the horizontal chamber 3 904 are arranged in parallel. When the movable plate 12 is rotated to the edge positions on both sides, it is arranged perpendicular to the horizontal chamber 1 902. It should be noted that the movable plates 12 arranged at the two ends of the transparent casing 6 are respectively arranged as a mesh plate 1 121 and a mesh plate 2 122. The same mesh plate is arranged in the same end direction of the two transparent casings 6, that is, the movable plates 12 located in the same end direction of the two transparent casings 6 are all mesh plates 121 or are all mesh plates 122.

[0037] like Figure 5 In the illustrated usage state 1, the mesh panels 121 are both located on one side of the corresponding transparent casing 6 and extend horizontally toward the water inlet connecting pipe 4, and the mesh panels 2 122 are both located on the corresponding transparent casing 6 and extend horizontally toward the water outlet connecting pipe 5. At this time, since one end of the horizontal cavity 1 902 is blocked by the mesh panel 1 121, most of the water flows in the direction away from the mesh panel 1 121. At both ends of the horizontal cavity 2 903, one end and the water inlet connecting pipe 4 are blocked by two mesh panels 121, and the other end and the water inlet connecting pipe 4 are blocked by one mesh panel 2 122. That is, there is a difference in the water pressure impact force toward the horizontal cavity 2 903 at both ends, so that most of the water in the horizontal cavity 2 903 will flow from the mesh panel 2 122 toward the mesh panel 1 121. The water at both ends of the horizontal cavity 3 904 will flow toward the water outlet connecting pipe 5 in the middle position, thereby causing the water flow to collide.

[0038] like Figure 6 In the second usage state shown, the mesh panels 121 are both located on the side of the transparent housing 6 extending horizontally in the direction of the water outlet connecting pipe 5, and the mesh panels 2 122 are both located on the side of the transparent housing 6 extending horizontally in the direction of the water inlet connecting pipe 4. At this time, since one end of the horizontal cavity 1 902 is blocked by the mesh panel 2 122, most of the water flows in the direction away from the mesh panel 2 122. It should be noted that this direction will be different from the direction shown in FIG. Figure 5The flow direction in state 1 is opposite; at both ends of horizontal chamber 2 903: one end is blocked by mesh plate 121 between the water inlet connecting pipe 4, and the other end is blocked by two mesh plates 122 between the water inlet connecting pipe 4, so that most of the water in horizontal chamber 2 903 flows from mesh plate 121 toward mesh plate 2 122; the water at both ends of horizontal chamber 3 904 flows toward the water outlet connecting pipe 5 in the middle, thereby causing the water flows to collide.

[0039] 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 influence of the sterilization operation effect, thereby improving the operation effect of long-term continuous sterilization of water supply.

[0040] In the present invention, the bottom of the box shell 1 is sealed with a bottom cover 2, and a turntable 11 is rotatably provided at the position corresponding to the bottom cover 2 and the curved portion 601. The movable plate 12 is fixed between the turntable 11, and the turntable 11 and the curved portion 601 are arranged concentrically. A rotating shaft 111 is provided 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 bracket 10 is installed at the bottom of the bottom cover 2, and the outer wall of the motor 13 is connected to the mounting bracket 10. It should also be noted that in order to prevent water from entering the transparent casing 6 due to the rotation of the turntable 11, a sealing plate 7 is installed at the bottom end of the transparent casing 6, and the bottom of the sealing plate 7 is fixed to the top outer wall of the bottom cover 2, thereby sealing the chamber in the transparent casing 6. Even if the turntable 11 rotates and brings some water to the bottom of the transparent casing 6, it will not enter the transparent casing 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 rotate back and forth adaptively.

[0041] 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, and the hole 3 22 is distributed between the hole 20 and the hole 21. The hole 20 is arranged to form an arc structure with the middle position arched toward 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. The hole 21 is arranged to form an arc structure with the middle position arched toward the direction away from the transparent cover 6. The arc-shaped structure is arched in the direction close to the transparent cover 6, and the two ends of the 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 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, thereby improving the cleaning effect; on the other hand, the water flow is dispersed through the difference in the water outlet directions of the hole 1 20, the hole 21 and the hole 3 22, thereby improving the effectiveness of the ultraviolet germicidal lamp 8 in irradiation and sterilization.

[0042] Example 2: Reference Figures 1-12 , 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 rail 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 rail frame 14 is arranged parallel to the extension direction of the horizontal cavity 1 902, and a slider 15 is connected to the guide rail frame 14 in a limited sliding manner. The bottom of the slider 15 is connected to two friction members 16. The outer wall of the friction member 16 contacts the outer wall of the transparent cover 6 or the inner wall of the box shell 1, and the outer wall of the friction member 16 is set to a groove with a V-shaped cross-section. 161. During the process, as the movable plate 12 rotates back and forth 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 rail 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.

[0043] 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 arranged perpendicular to the guide rail 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. Cylindrical limit blocks are installed on both sides of the slider 15, and limit grooves are provided on both sides of the guide rail frame 14. 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 water flow change, the friction member 16 can move horizontally with the slider 15, and the friction member 16 can deflect around the connecting sleeve 18 along with the connecting shaft 19, and the friction member 16 can deflect around the cylindrical limit block along 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.

[0044] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection 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 sets of transparent casings (6) are installed in the box shell (1), and 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 configured as curved portions (601), and the position of the box shell (1) corresponding to the curved portion (601) is configured as an arc portion (101). The transparent casing (6) is provided with movable plates (12) at both ends thereof, the ends of the movable plates (12) sliding along the outer wall of the curved portion (601), the ends of the movable plates (12) away from the curved portion (601) sliding along the inner wall of the arc portion (101), the movable plates (12) rotating back and forth along the curved portion (601), and mesh holes being provided on the side surfaces of the movable plates (12); The water flow chamber (9) is arranged between the curved portion (601) and the arc portion (101) to form an arc-shaped chamber (901). 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).

2. The terminal sterilization device for secondary water supply according to claim 1, 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.

3. The terminal sterilization device for secondary water supply according to claim 2, characterized in that: The bottom of the box shell (1) is sealed with a bottom cover (2), a turntable (11) is rotatably provided 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 provided at the center position of the bottom of the turntable (11), the four rotating shafts (111) are synchronously rotated by a synchronous belt, and the bottom end of one of the rotating shafts (111) is transmission-connected to a motor (13).

4. The terminal sterilization device for secondary water supply according to claim 2, characterized in that: The mesh on the movable plate (12) is 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).

5. The terminal sterilization device for secondary water supply according to claim 4, characterized in that: The first hole (20) is configured as an arc-shaped structure with its middle position arched in a direction away from the transparent cover (6), and the second hole (21) is configured as an arc-shaped structure with its middle position arched in a direction close to the transparent cover (6).

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

7. The terminal sterilization device for secondary water supply according to claim 6, characterized in that: 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 rail frame (14), and a connecting shaft (19) is rotatably connected in the connecting sleeve (18). Two friction members (16) are respectively installed at both ends of the connecting shaft (19).

8. The terminal sterilization device for secondary water supply according to claim 7, characterized in that: Limit blocks with cylindrical structures are installed on both sides of the slider (15), and limit grooves are provided on both sides of the guide rail frame (14), and the limit blocks roll in the limit grooves.

Images