Water dispenser based on pipeline type photoelectric liquid level sensor

Abstract

The invention relates to the technical field of water dispenser sensors, and particularly discloses a water dispenser based on a pipeline type photoelectric liquid level sensor, the water dispenser comprises a water dispenser shell and a liquid level sensor main body, the right end of the water dispenser shell is provided with a water outlet pipe, and the front side of the water dispenser shell is provided with an access cover. The end of the liquid level sensor body is inserted along the positioning block positioning groove of the fixing plate, the end of the liquid level sensor body extrudes the inclined face of the clamping block in the positioning groove during insertion, so that a movable plate connected with the clamping block slides in the mounting cavity and extrudes a second spring, and when the liquid level sensor body is inserted into the positioning groove to the bottom, the second spring is pressed. At the moment, the clamping-in end of the clamping block corresponds to the clamping groove of the liquid level sensor body in position, a second spring pushes the clamping block on the moving plate to stretch into the positioning groove through resetting and is clamped in the clamping groove of the liquid level sensor body, and therefore the liquid level sensor body can be conveniently and rapidly clamped and installed.

Description

Technical Field

[0001] The invention relates to the technical field of water dispenser sensors, in particular to a water dispenser based on a pipeline type photoelectric liquid level sensor. Background Art

[0002] Water dispensers are a common household appliance in our daily lives. With its convenient and practical features, it has become an indispensable drinking water device in offices, homes, schools and other places. Through the internal filtration system, water dispensers can effectively remove impurities and odors in tap water and provide clean and hygienic drinking water. It is usually equipped with hot and cold water functions, and users can choose the appropriate water temperature according to their needs, whether it is a glass of cool ice water in the hot summer or a pot of warm water in the cold winter. In addition, the design of modern water dispensers is more intelligent, such as with LED display screens, automatic power-off protection and other functions, which are not only easy to operate, but also safe and reliable. Water dispensers also focus on energy conservation and environmental protection, and use energy-saving technologies to reduce energy consumption, which is in line with the concept of modern green life. In short, water dispensers provide strong protection for people's drinking water health with their excellent performance and humanized design.

[0003] At present, purified water dispensers are usually equipped with pure water tanks and raw water tanks. In order to facilitate the detection of the liquid level in the water tank, it is usually necessary to install liquid level sensors at the lowest water point and the highest water point in the water tank. At present, there are two main fixing structures for traditional pipeline photoelectric liquid level sensors in water dispensers. One is to fix them with cable ties, which requires more reliance on external connections. If the cable ties are cut during disassembly, new cable ties need to be purchased and replaced for reinstallation, and the sensing position is also prone to change. The second is a liquid level sensor with mounting ears, which requires special tools combined with a large number of screw fasteners for installation and fixation. In addition to relying on external tools during disassembly and assembly, there are sometimes problems such as rust, oxidation and thread slippage of the fastening screws, which affect the sensor disassembly and assembly efficiency of the water dispenser. Summary of the invention

[0004] The object of the present invention is to provide a water dispenser based on a pipeline photoelectric liquid level sensor to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides a water dispenser based on a pipeline photoelectric liquid level sensor, comprising a water dispenser housing and a liquid level sensor body, a water outlet pipe is provided at the right end of the water dispenser housing, a maintenance cover is provided at the front of the water dispenser housing, a water tank is provided at the inner side of the front of the water dispenser housing, a water level pipe is fixedly installed at the outer side of the water tank, a fixing plate is fixedly installed at the outer side of the water tank, positioning blocks are symmetrically provided at the outer side of the fixing plate, a fixing mechanism is provided at the inner side of the positioning block, a card slot is symmetrically opened at the outer side of the liquid level sensor body, the positioning block is connected with the card slot by the fixing mechanism, a positioning mechanism is provided at the outer side of the fixing mechanism, and an arrangement mechanism is provided at the outer side of the water tank;

[0006] The fixing mechanism comprises an installation cavity and a positioning groove, the positioning groove is symmetrically arranged on the front side of the positioning block, the end of the liquid level sensor body is inserted into the inner side of the positioning groove, the installation cavity is arranged on the inner side of the positioning block, a moving plate is slidably connected to the inner side of the installation cavity, a clamping block is fixedly arranged on one side of the moving plate, the clamping end of the clamping block slides into the inner side of the positioning groove, the clamping end of the clamping block is clamped with the clamping groove of the liquid level sensor body, a rectangular rod is fixedly arranged on the side of the moving plate away from the clamping block, an end of the rectangular rod away from the moving plate slides through the cavity wall of the installation cavity and an L-shaped block is fixedly arranged, a second spring is fixedly arranged on the inner side of the installation cavity, one end of the rectangular rod movably penetrates the middle part of the second spring, and the positioning mechanism is arranged on the outer side of the rectangular rod;

[0007] The positioning mechanism includes a rectangular groove and a limiting groove, the rectangular groove is arranged on one side of the rectangular rod, the limiting groove is arranged on the inner side of the rectangular groove, a mounting shell is fixedly installed on the outer side of the positioning block, a movable plate is slidably connected to the inner side of the mounting shell, a clamping rod is fixedly installed on one side of the movable plate, the clamping end of the clamping rod abuts against the inner side of the rectangular groove, a pull rod is fixedly installed on the side of the movable plate away from the clamping rod, a first spring is sleeved on the outer side of the pull rod, and the end of the pull rod away from the first spring slides through the shell wall of the mounting shell and is fixedly installed with the same linkage plate;

[0008] The arrangement mechanism includes a connecting plate, one side of which is bonded with a double-sided adhesive layer, the connecting plate is bonded to the outside of the water tank through the double-sided adhesive layer, a wire clamp is fixedly connected to the side of the connecting plate away from the double-sided adhesive layer, and a clamping groove is provided on the outside of the wire clamp.

[0009] Furthermore, a second sliding groove is symmetrically provided on the inner side of the mounting shell, the movable plate and the second sliding groove of the mounting shell are slidably connected, and the clamping end of the clamping rod is spherical.

[0010] Furthermore, a pull block is fixedly installed on one side of the linkage plate away from the pull rod, a pull hole is opened on the inner side of the pull block, and the pull block is arranged in the middle part of the linkage plate.

[0011] Furthermore, a first sliding groove is symmetrically opened on the inner side of the installation cavity, and the movable plate and the first sliding groove of the installation cavity are slidably connected.

[0012] Furthermore, a sliding hole is provided on one side of the inner wall of the installation cavity away from the positioning groove, one end of the rectangular rod slides through the sliding hole, and the clamping end of the clamping block is inclined toward one side of the notch of the positioning groove.

[0013] Furthermore, fixing holes are symmetrically opened on the inner side of the fixing plate, and the fixing plate is fixedly installed by screws penetrating the fixing holes and the water tank.

[0014] Furthermore, the inspection cover includes a cover plate and a cover groove, the cover groove is opened on the front side of the water dispenser housing, a magnet is embedded on the inner side of the cover groove, one end of the cover plate is rotatably connected to the inner side of the cover groove, the other end of the cover plate is magnetically connected to the magnet of the cover groove, a pull button is threadedly installed on the front side of the cover plate, and a ventilation hole is opened on the inner side of the cover plate.

[0015] Furthermore, a handle is fixedly mounted on the upper end of the water dispenser housing, and a waste water box is plugged into a side of the water dispenser housing close to the water outlet pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] First, in the present invention, the end of the liquid level sensor body is inserted into the positioning groove of the positioning block of the fixed plate. When inserted, the end of the liquid level sensor body presses the inclined surface of the card block in the positioning groove, so that the movable plate connected to the card block slides in the installation cavity and presses the second spring. When the liquid level sensor body is inserted into the positioning groove to the bottom, the card-in end of the card block corresponds to the card slot position of the liquid level sensor body. At this time, the second spring pushes the card block on the movable plate to extend into the positioning groove through resetting, and is stuck in the card slot of the liquid level sensor body, so that the liquid level sensor body can be quickly clamped and installed;

[0018] Secondly, in the present invention, after the L-shaped block on one side of the positioning groove is pulled away from the positioning block at the same time, the rectangular rod connected to the L-shaped block slides in the installation cavity of the positioning block, and at the same time, the snap-in end of the clamping rod slides in the rectangular groove of the rectangular rod. Since one end of the clamping rod slides in the installation shell by connecting the movable plate, and a first spring is added to the pull rod on the other side of the movable plate, the clamping rod is always against the rectangular groove of the rectangular rod until the snap-in end of the clamping rod corresponds to the limiting groove in the rectangular groove. Under the action of the first spring, the clamping rod can be inserted into the limiting groove, so that the rectangular rod can be limited. After the rectangular rod is limited, the clamping block connected to the movable plate by the rectangular rod is separated from the clamping groove of the liquid level sensor body. At this time, the liquid level sensor body can be directly removed from the positioning block, thereby facilitating disassembly of the liquid level sensor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a side view of the present invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0022] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 It is a schematic diagram of the connection between the liquid level sensor body and the fixing mechanism in the present invention;

[0024] Figure 6 It is a schematic diagram of the positioning mechanism structure in the present invention;

[0025] Figure 7 It is a schematic diagram of the internal structure of the installation shell in the present invention;

[0026] Figure 8 For the present invention Figure 3 Enlarged view of point B in the middle.

[0027] In the figure: 1, water dispenser housing; 2, waste water box; 3, water outlet pipe; 4, inspection cover; 401, cover plate; 402, pull button; 403, ventilation hole; 404, magnet; 405, cover slot; 5, handle; 6, water tank; 7, water level pipe; 8, liquid level sensor body; 9, fixing plate; 10, fixing hole; 11, positioning block; 12, positioning mechanism; 121, rectangular slot; 122, limit slot; 123, installation shell; 124, linkage plate; 125, movable plate; 126. Clamping rod; 127. First spring; 128. Pulling rod; 13. Fixing mechanism; 131. Mounting cavity; 132. Positioning groove; 133. Clamping block; 134. Rectangular rod; 135. L-shaped block; 136. Second spring; 137. Moving plate; 14. Sliding hole; 15. First sliding groove; 16. Second sliding groove; 17. Pulling block; 18. Pulling hole; 19. Arrangement mechanism; 191. Wire clamp; 192. Connecting plate; 193. Double-sided adhesive layer; 194. Clamping groove. DETAILED DESCRIPTION

[0028] Example

[0029] See also Figure 1-Figure 8In the embodiment of the present invention, a water dispenser based on a pipeline photoelectric liquid level sensor comprises a water dispenser housing 1 and a liquid level sensor body 8, a water outlet pipe 3 is provided at the right end of the water dispenser housing 1, a maintenance cover 4 is provided on the front of the water dispenser housing 1, a water tank 6 is provided on the inner side of the front of the water dispenser housing 1, a water level pipe 7 is fixedly installed on the outer side of the water tank 6, a fixing plate 9 is fixedly installed on the outer side of the water tank 6, a positioning block 11 is symmetrically provided on the outer side of the fixing plate 9, a fixing mechanism 13 is provided on the inner side of the positioning block 11, a card slot is symmetrically provided on the outer side of the liquid level sensor body 8, the positioning block 11 is connected to the card slot through the fixing mechanism 13, a positioning mechanism 12 is provided on the outer side of the fixing mechanism 13, and an arrangement mechanism 19 is provided on the outer side of the water tank 6; the liquid level sensor body 8 can specifically refer to the pipeline liquid level switch sensor of the EE-SPX613 series, which is U-shaped and the inner concave part is the sensing detection part, which is used to detect the pipeline liquid level;

[0030] The fixing mechanism 13 includes an installation cavity 131 and a positioning groove 132. The positioning groove 132 is symmetrically arranged on the front side of the positioning block 11. The end of the liquid level sensor body 8 is inserted into the inner side of the positioning groove 132. The installation cavity 131 is arranged on the inner side of the positioning block 11. A moving plate 137 is slidably connected to the inner side of the installation cavity 131. A clamping block 133 is fixedly installed on one side of the moving plate 137. The clamping end of the clamping block 133 slides into the inner side of the positioning groove 132. The clamping end of the clamping block 133 is clamped with the clamping groove of the liquid level sensor body 8. A rectangular rod 134 is fixedly installed on the side of the moving plate 137 away from the clamping block 133. One end of the rectangular rod 134 away from the moving plate 137 slides through the cavity wall of the installation cavity 131 and is fixedly installed with an L-shaped block 135. A second spring 136 is fixedly installed on the inner side of the installation cavity 131. One end of the rectangular rod 134 movably penetrates the middle part of the second spring 136. The positioning mechanism 12 is arranged on the outer side of the rectangular rod 134. When the liquid level sensor body 8 needs to be fixed, first, the end of the liquid level sensor body 8 is inserted into the positioning groove 132 of the positioning block 11 of the fixing plate 9. When inserting, the end of the liquid level sensor body 8 presses the inclined surface of the block 133 in the positioning groove 132, so that the movable plate 137 connected to the block 133 slides in the installation cavity 131 and presses the second spring 136. When the liquid level sensor body 8 is inserted into the positioning groove 132 to the bottom, the clamping end of the block 133 corresponds to the clamping groove position of the liquid level sensor body 8. At this time, the second spring 136 pushes the block 133 on the movable plate 137 to extend into the positioning groove 132 through resetting, and is clamped in the clamping groove of the liquid level sensor body 8, so that the liquid level sensor body 8 can be quickly clamped and installed; the sensing part of the installed liquid level sensor body 8 just corresponds to the water level pipe 7 of the water dispenser housing 1, and the liquid level detection can be performed;

[0031] The positioning mechanism 12 includes a rectangular groove 121 and a limiting groove 122. The rectangular groove 121 is provided on one side of the rectangular rod 134, and the limiting groove 122 is provided on the inner side of the rectangular groove 121. A mounting shell 123 is fixedly installed on the outer side of the positioning block 11, and a movable plate 125 is slidably connected to the inner side of the mounting shell 123. A clamping rod 126 is fixedly installed on one side of the movable plate 125, and the clamping end of the clamping rod 126 abuts against the inner side of the rectangular groove 121. A pull rod 128 is fixedly installed on the side of the movable plate 125 away from the clamping rod 126. A first spring 127 is sleeved on the outer side of the pull rod 128. The end away from the first spring 127 slides through the shell wall of the mounting shell 123 and is fixedly installed with the same linkage plate 124. When it is necessary to remove the liquid level sensor body 8 from the water tank 6 of the water dispenser housing 1, the L-shaped block 135 on the side away from the positioning groove 132 of the positioning block 11 is pulled at the same time, so that the rectangular rod 134 connected to the L-shaped block 135 slides in the mounting cavity 131 of the positioning block 11. At the same time, the inserted end of the clamping rod 126 slides at the rectangular groove 121 of the rectangular rod 134. Since one end of the clamping rod 126 slides in the mounting shell 123 through the connecting movable plate 125, The movable plate 125 is movable, and a first spring 127 is added to the pull rod 128 on the other side of the movable plate 125, so that the clamping rod 126 is always against the rectangular groove 121 of the rectangular rod 134, until the clamping end of the clamping rod 126 corresponds to the limiting groove 122 in the rectangular groove 121, and under the action of the first spring 127, the clamping rod 126 can be inserted into the limiting groove 122, and the rectangular rod 134 can be limited. After the rectangular rod 134 is limited, the clamping block 133 connected to the movable plate 137 by the rectangular rod 134 is separated from the clamping groove of the liquid level sensor body 8, and the rectangular rod 134 can be directly moved. Then, the liquid level sensor body 8 is removed from the positioning block 11, so that the liquid level sensor body 8 can be easily disassembled; after the liquid level sensor body 8 is removed, the linkage plate 124 is pulled, so that the linkage plate 124 drives the pull rods 128 at two locations to move, and the pull rod 128 drives the clamping rod 126 connected to the movable plate 125 to retract toward the side of the installation shell 123, at this time, the clamping rod 126 is separated from the limiting groove 122 of the rectangular rod 134, and then under the action of the second spring 136, the clamping block 133 is re-extended into the positioning groove 132 of the positioning block 11, which is convenient for subsequent replacement and installation;

[0032] The arrangement mechanism 19 includes a connecting plate 192, one side of which is bonded with a double-sided adhesive layer 193, and the connecting plate 192 is bonded to the outside of the water tank 6 through the double-sided adhesive layer 193. The side of the connecting plate 192 away from the double-sided adhesive layer 193 is fixedly connected with a wire clamp 191, and a clamping groove 194 is provided on the outer side of the wire clamp 191. The double-sided adhesive layer 193 on the connecting plate 192 facilitates the fixing of the connecting plate 192 on the water tank 6, and the wire clamp 191 with the clamping groove 194 on the connecting plate 192 facilitates the arrangement of the connecting line of the liquid level sensor on the water tank 6 of the water dispenser housing 1; multiple connecting plates 192 can be set according to the specifications and models of the water dispenser housing 1, including the nearest wiring point position.

[0033] See also Figure 7 A second slide groove 16 is symmetrically provided on the inner side of the mounting shell 123. The movable plate 125 and the second slide groove 16 of the mounting shell 123 are slidably connected. The snap-in end of the clamping rod 126 is spherical. By providing the second slide groove 16 on the inner side of the mounting shell 123, the movable plate 125 can slide stably on the inner side of the mounting shell 123. At the same time, the snap-in end of the clamping rod 126 is designed to be spherical, which can reduce the resistance during relative movement in the rectangular groove 121.

[0034] See also Figure 7 A pull block 17 is fixedly installed on the side of the linkage plate 124 away from the pull rod 128, and a pull hole 18 is opened on the inner side of the pull block 17. The pull block 17 is arranged in the middle part of the linkage plate 124. By installing the pull block 17 with the pull hole 18 on the side of the linkage plate 124 away from the pull rod 128, the pull block 17 can be conveniently used to operate the movement of the linkage plate 124.

[0035] See also Figure 5 A first slide groove 15 is symmetrically provided on the inner side of the installation cavity 131, and the movable plate 137 and the first slide groove 15 of the installation cavity 131 are slidably connected. By symmetrically providing the first slide groove 15 on the inner side of the installation cavity 131, the movable plate 137 can slide stably in the installation cavity 131.

[0036] See also Figure 5 A sliding hole 14 is provided on one side of the inner wall of the installation cavity 131 away from the positioning groove 132, and one end of the rectangular rod 134 slides through the sliding hole 14, and the card-in end of the block 133 is inclined toward the side of the notch of the positioning groove 132. By providing the sliding hole 14 on one side of the inner wall of the installation cavity 131, one end of the rectangular rod 134 can slide through the inner wall of the installation cavity 131, and at the same time, the card-in end of the block 133 is designed to be inclined toward the side of the notch of the positioning groove 132, which can facilitate contact and installation with the liquid level sensor body 8 through the block 133.

[0037] See also Figure 4The inner side of the fixing plate 9 is symmetrically provided with fixing holes 10, and the fixing plate 9 is fixedly installed by screws penetrating the fixing holes 10 and the water tank 6. By opening the fixing holes 10 on the inner side of the fixing plate 9, the fixing plate 9 can be conveniently fixed to the water tank 6 by screws; the fixing plate 9 is generally installed on the water tank 6 of the water dispenser housing 1 when the product leaves the factory, and there is no need to disassemble it later.

[0038] See also Figure 2 and Figure 3 The inspection cover 4 includes a cover plate 401 and a cover groove 405. The cover groove 405 is provided on the front side of the water dispenser housing 1. A magnet 404 is embedded on the inner side of the cover groove 405. One end of the cover plate 401 is rotatably connected to the inner side of the cover groove 405. The other end of the cover plate 401 is magnetically connected to the magnet 404 of the cover groove 405. A pull button 402 is threadedly installed on the front side of the cover plate 401. A ventilation hole 403 is provided on the inner side of the cover plate 401. One end of the inspection cover 4 is rotatably connected to the cover groove 405 of the water dispenser housing 1, and the other side is attracted by the magnet 404 in the cover groove 405, so that the inspection cover 4 can be conveniently opened and closed, and it is also convenient for the subsequent maintenance and use of the internal structure of the water dispenser housing 1 including the liquid level sensor body 8; the door cover on the other side of the water dispenser housing 1 away from the inspection cover 4 can also be opened, but it is fixed by screws, and is generally opened through the inspection cover 4 during maintenance.

[0039] See also Figure 1 A handle 5 is fixedly installed on the upper end of the water dispenser housing 1, and a waste water box 2 is inserted on the side of the water dispenser housing 1 close to the water outlet pipe 3. The handle 5 added to the water dispenser housing 1 can meet the daily carrying and transfer operations of the water dispenser. At the same time, the waste water box 2 on the water dispenser housing 1 can conveniently collect the water dripping when the water dispenser is receiving water.

[0040] The working principle of the present invention is as follows: during use, when the liquid level sensor body 8 needs to be fixed, first, the end of the liquid level sensor body 8 is inserted into the positioning groove 132 of the positioning block 11 of the fixing plate 9. When inserted, the end of the liquid level sensor body 8 presses the inclined surface of the block 133 in the positioning groove 132, so that the movable plate 137 connected to the block 133 slides in the installation cavity 131 and presses the second spring 136. When the liquid level sensor body 8 is inserted into the positioning groove 132 to the bottom, the clamping end of the block 133 corresponds to the clamping groove position of the liquid level sensor body 8. At this time, the second spring 136 pushes the block 133 on the movable plate 137 to extend into the positioning groove 132 through resetting, and is clamped in the clamping groove of the liquid level sensor body 8. Subsequently, the circuit part of the liquid level sensor body 8 is fixed by the wire clamp 191 on the connecting plate 192 and then wired. The liquid level sensor body 8 can be installed on the water tank 6 inside the water dispenser housing 1, and the water level of the water level pipe 7 on the water tank 6 can be monitored.

[0041] When it is necessary to remove the liquid level sensor body 8 from the water tank 6 of the water dispenser housing 1, first open the inspection door from the water dispenser housing 1, and then pull the L-shaped block 135 on the side of the positioning block 11 away from the positioning groove 132 at the same time, so that the rectangular rod 134 connected to the L-shaped block 135 slides in the installation cavity 131 of the positioning block 11, and at the same time, the inserted end of the clamping rod 126 slides at the rectangular groove 121 of the rectangular rod 134. Since one end of the clamping rod 126 slides in the installation shell 123 by connecting the movable plate 125, and the pull rod 128 on the other side of the movable plate 125 increases The first spring 127 is added so that the clamping rod 126 is always against the rectangular groove 121 of the rectangular rod 134 until the clamping end of the clamping rod 126 corresponds to the limiting groove 122 in the rectangular groove 121. Under the action of the first spring 127, the clamping rod 126 can be inserted into the limiting groove 122, so as to limit the rectangular rod 134. After the rectangular rod 134 is limited, the clamping block 133 connected to the movable plate 137 by the rectangular rod 134 is separated from the clamping groove of the liquid level sensor body 8. At this time, the liquid level sensor body 8 can be directly removed from the positioning block 11.

Claims

1. A water dispenser based on a pipeline photoelectric liquid level sensor, characterized in that: It includes a water dispenser housing and a liquid level sensor body, wherein a water outlet pipe is provided at the right end of the water dispenser housing, an inspection cover is provided at the front of the water dispenser housing, a water tank is provided at the inner side of the front of the water dispenser housing, a water level pipe is fixedly installed at the outer side of the water tank, a fixing plate is fixedly installed at the outer side of the water tank, positioning blocks are symmetrically provided at the outer side of the fixing plate, a fixing mechanism is provided at the inner side of the positioning blocks, a card slot is symmetrically provided at the outer side of the liquid level sensor body, the positioning blocks are connected with the card slot by the fixing mechanism, a positioning mechanism is provided at the outer side of the fixing mechanism, and an arrangement mechanism is provided at the outer side of the water tank; The fixing mechanism includes an installation cavity and a positioning groove, the positioning groove is symmetrically arranged on the front side of the positioning block, the end of the liquid level sensor body is inserted into the inner side of the positioning groove, the installation cavity is arranged on the inner side of the positioning block, a moving plate is slidably connected to the inner side of the installation cavity, a clamping block is fixedly installed on one side of the moving plate, the clamping end of the clamping block slides into the inner side of the positioning groove, the clamping end of the clamping block is clamped with the clamping groove of the liquid level sensor body, a rectangular rod is fixedly installed on the side of the moving plate away from the clamping block, an end of the rectangular rod away from the moving plate slides through the cavity wall of the installation cavity and an L-shaped block is fixedly installed, a second spring is fixedly installed on the inner side of the installation cavity, one end of the rectangular rod movably penetrates the middle part of the second spring, and the positioning mechanism is arranged on the outer side of the rectangular rod.

2. The water dispenser based on pipeline photoelectric liquid level sensor according to claim 1 is characterized in that: The positioning mechanism includes a rectangular groove and a limiting groove, the rectangular groove is opened on one side of the rectangular rod, and the limiting groove is opened on the inner side of the rectangular groove. A mounting shell is fixedly installed on the outer side of the positioning block, and a movable plate is slidably connected to the inner side of the mounting shell. A clamping rod is fixedly installed on one side of the movable plate, and the clamping end of the clamping rod abuts against the inner side of the rectangular groove. A pull rod is fixedly installed on the side of the movable plate away from the clamping rod, and a first spring is sleeved on the outer side of the pull rod. The end of the pull rod away from the first spring slides through the shell wall of the mounting shell and is fixedly installed with the same linkage plate.

3. The water dispenser based on pipeline photoelectric liquid level sensor according to claim 2 is characterized in that: A second sliding groove is symmetrically provided on the inner side of the mounting shell, the movable plate and the second sliding groove of the mounting shell are slidably connected, and the clamping end of the clamping rod is spherical.

4. The water dispenser based on pipeline photoelectric liquid level sensor according to claim 2 is characterized in that: A pulling block is fixedly installed on one side of the linkage plate away from the pulling rod, a pulling hole is opened on the inner side of the pulling block, and the pulling block is arranged in the middle part of the linkage plate.

5. The water dispenser based on pipeline photoelectric liquid level sensor according to claim 1, characterized in that: A first sliding groove is symmetrically provided on the inner side of the installation cavity, and the movable plate and the first sliding groove of the installation cavity are slidably connected.

6. The water dispenser based on pipeline photoelectric liquid level sensor according to claim 1, characterized in that: A sliding hole is provided on one side of the inner wall of the installation cavity away from the positioning groove, one end of the rectangular rod slides through the sliding hole, and the clamping end of the clamping block is inclined toward one side of the notch of the positioning groove.

7. The water dispenser based on pipeline photoelectric liquid level sensor according to claim 1, characterized in that: The inner side of the fixing plate is symmetrically provided with fixing holes, and the fixing plate is fixedly installed by screws penetrating the fixing holes and the water tank.

8. The water dispenser based on pipeline photoelectric liquid level sensor according to claim 1, characterized in that: The arrangement mechanism includes a connecting plate, one side of which is bonded with a double-sided adhesive layer, the connecting plate is bonded to the outside of the water tank through the double-sided adhesive layer, a wire clamp is fixedly connected to the side of the connecting plate away from the double-sided adhesive layer, and a clamping groove is provided on the outside of the wire clamp.

9. The water dispenser based on pipeline photoelectric liquid level sensor according to claim 1, characterized in that: The inspection cover includes a cover plate and a cover groove, wherein the cover groove is provided on the front side of the water dispenser housing, a magnet is embedded on the inner side of the cover groove, one end of the cover plate is rotatably connected to the inner side of the cover groove, the other end of the cover plate is magnetically connected to the magnet of the cover groove, a pull button is threadedly installed on the front side of the cover plate, and a ventilation hole is provided on the inner side of the cover plate.

10. The water dispenser based on pipeline photoelectric liquid level sensor according to claim 1, characterized in that: A handle is fixedly mounted on the upper end of the water dispenser housing, and a waste water box is plugged into one side of the water dispenser housing close to the water outlet pipe.

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