Switching mechanism of hydrodynamic proportional diluter

Abstract

The utility model discloses a switching mechanism of a hydrodynamic proportional diluter, which relates to the technical field of proportional diluters and comprises a top cap matched with a pump cover, an exhaust main body is connected to the center of the bottom of the top cap, and a base is sleeved outside the exhaust main body; one end of the base penetrates out of the pump cover, the penetrating-out end is in threaded connection with a base locking nut, a center hole is formed in the base, the end, away from the top cap, of the exhaust body freely penetrates through the center hole, and a T-shaped end with the outer diameter larger than the hole diameter of the center hole is arranged at the end. The top cap is axially and elastically connected with the base, so that the T-shaped end of the exhaust main body connected below the top cap is in elastic sealing contact with the end surface of the base; an ejector rod is hinged to the top of the top cap and matched with the inner wall of the exhaust body in a piston mode. When the top cap is pressed, the exhaust body is separated from the base end face. When the top cap is rotated, the exhaust body and the base are kept sealed and static, and the ejector rod moves downwards. The switching mechanism integrates a start-stop function and an exhaust function, so that the operation is more efficient, and the assembly is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of proportional diluters, and in particular relates to a switch mechanism of a hydrodynamic proportional diluter. Background Art

[0002] The hydrodynamic proportional diluter is a new type of dosing pump, widely used in a variety of industries, including animal husbandry, car washes, irrigation, and industry, and has huge market potential. Connected directly to a water pipe, the hydrodynamic proportional diluter relies solely on the kinetic energy of water, not electricity, to continuously add a fixed proportion of the chemical into the pipe to achieve the purpose of dilution.

[0003] Currently, there are various models and functions of hydrodynamic proportional diluters on the market. In order to meet usage requirements, such products generally have an exhaust valve or switch button installed on the top as a switching mechanism. The function of the exhaust valve is to quickly exhaust the air in the pump when the pump is started for the first time so that it can reach normal working state as soon as possible; the purpose of the switch button is to be able to shut down the pump and stop adding chemicals through the switch button without turning off the water source, while water can still flow normally in the pipeline.

[0004] However, the installation process of the switch mechanism in the prior art is relatively complicated, and it cannot realize the exhaust function and the start-stop function at the same time, thus failing to achieve the expected effect. In view of this, a hydrodynamic proportional diluter switch mechanism is urgently needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a hydrodynamic proportional diluter switch mechanism to solve the above technical problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following solution: a switch mechanism of a hydrodynamic proportional diluter is installed on the top of the pump cover of the hydrodynamic proportional diluter, including a top cap that cooperates with the pump cover, an exhaust body is connected to the center of the bottom of the top cap, a base is connected to the outer surface of the exhaust body, and the exhaust body and the base are loosely matched; one end of the base is passed through the top cover hole of the pump cover from the inside and is threadedly connected to the base locking nut at the other end to achieve assembly, a center hole is opened in the center of the base, which passes through the top and bottom, and the end of the exhaust body away from the top cap can freely pass through the center hole. A T-shaped end with an outer diameter larger than the aperture of the central hole is provided at the end; the top cap and the base are elastically connected axially, so that the T-shaped end of the exhaust body connected under the top cap is in elastic sealing contact with the end face of the base; the top of the top cap is movably connected to the switch knob, and a push rod is piston-type inserted in the exhaust body, one end of the push rod is hinged to the switch knob, and the other end passes through the top cap and the exhaust body to the inside of the pump cover; when the top cap is pressed, the exhaust body is separated from the end face of the base; when the switch knob is rotated, the exhaust body and the base remain sealed and stationary, and the push rod moves downward.

[0007] In the above structure, the piston located inside the proportional diluter completes reciprocating linear motion through the cooperation of the push rod to realize the switching function; the spring contracts when the combination formed by the top cap, the push rod, and the exhaust body is pressed down. When the downward pressure on the combination is released, the spring provides elastic force to move the component upward and reseal it; the switch mechanism based on the above structure integrates the start-stop function and the exhaust function, making the operation more efficient.

[0008] Preferably, a sealing ring three is fixedly connected to the position where the T-shaped end of the exhaust body meets the end surface of the base.

[0009] Preferably, at least one sealing ring is provided between the push rod and the inner wall of the exhaust body.

[0010] Preferably, a second sealing ring is provided at the junction between the base and the inner side of the pump cover.

[0011] Preferably, a spring is provided between the bottom of the top cap and the base, and the spring is sleeved outside the exhaust body.

[0012] Preferably, a spring retaining ring is provided at the junction of the exhaust body and the top cap, and the spring retaining ring has an internal thread and an external thread, wherein the internal thread cooperates with the exhaust body thread, and the external thread cooperates with the top cap thread.

[0013] Preferably, one end of the spring abuts against the bottom of the spring retaining ring, and the other end abuts against the inner end surface of the center hole of the base.

[0014] Preferably, the switch knob is hinged to the push rod via a pin.

[0015] Preferably, the outer shape of the top cap is adapted to the top shape of the pump cover.

[0016] The utility model solves at least the following technical problems:

[0017] Question 1: Installation convenience. The utility model avoids the need to install a large number of parts at both ends of the pump (especially larger pumps) by assembling the spring retaining ring, spring, sealing ring 2, base, sealing ring 3 and exhaust body in advance. After assembly, it is only necessary to tighten the base locking nut to tighten it, and then continue to install the various components on the upper side of the pump cover. The operation is very convenient.

[0018] Problem 2: Integrated exhaust and start-stop functions. This utility model cleverly integrates an exhaust mechanism and a slider-crank mechanism into one, achieving both exhaust and start-stop integration. Only a fixed-size hole is required on the pump cover, eliminating the need for additional structures. This reduces product complexity, saves design space, and saves product costs.

[0019] The utility model discloses the following technical effects:

[0020] This utility model addresses the inconvenient assembly process of the switch button for a hydrodynamic proportional diluter. By optimizing the existing switch mechanism, the design improves assembly convenience. Furthermore, the switch mechanism integrates both start / stop and exhaust functions, making operation more efficient. This hydrodynamic proportional diluter switch mechanism boasts not only convenient assembly and comprehensive functionality, but also a simple and elegant appearance, promising promising market applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a structural cross-sectional view of the switch mechanism of the utility model;

[0023] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0024] Figure 3 This is an exploded view of the switch mechanism of the utility model;

[0025] Figure 4 This is a schematic structural diagram of the switch knob and the push rod in the switch mechanism of the utility model;

[0026] Figure 5 This is a positional relationship diagram from the spring retaining ring to the exhaust body in the switch mechanism of the utility model;

[0027] Figure 6 This is a schematic diagram of the exhaust process of the switch mechanism of the utility model;

[0028] Figure 7 This is a schematic diagram of the start and stop process of the switch mechanism of the utility model;

[0029] Figure 8 This is a schematic diagram of the position of the switch knob of the switch mechanism of the utility model when it is in the open state;

[0030] Figure 9 This is the process of the switch mechanism of the utility model from the open state to the closed state Figure 1 ;

[0031] Figure 10 This is the process of the switch mechanism of the utility model from the open state to the closed state Figure 2 ;

[0032] Figure 11 This is the process of the switch mechanism of the utility model from the open state to the closed state Figure 3 ;

[0033] Figure 12 This is a schematic diagram of the position of the switch knob of the switch mechanism of the utility model when it is in the closed state;

[0034] In the figure: 1. Pin; 2. Switch knob; 21. Round shaft; 3. Push rod; 4. Sealing ring 1; 5. Top cap; 51. End plate; 52. Sliding groove; 6. Base locking nut; 7. Pump cover; 8. Spring retaining ring; 9. Spring; 10. Sealing ring 2; 11. Base; 12. Sealing ring 3; 13. Exhaust body. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0037] Reference Figures 1 to 12 As shown, the embodiment of the present invention provides a hydrodynamic proportional diluter switch mechanism, which is installed on the top of the pump cover 7 of the hydrodynamic proportional diluter, including a top cap 5 that cooperates with the pump cover 7, a recessed groove is opened in the center of the top cap 5, a spring retaining ring 8 is matched with the inner thread of the groove, and an exhaust body 13 is connected with the inner thread of the spring retaining ring 8, and the exhaust body 13 is connected with the base 11, and the exhaust body 13 and the base 11 are gap-matched, and a spring 9 is provided in the gap between the two, one end of the spring 9 abuts on the end cap of the base 11, and the other end abuts on the end face of the spring retaining ring 8, as shown in FIG. Figures 1 to 3As shown. The exhaust body 13 is a hollow T-shaped structure with a central opening. A piston-like push rod 3 is inserted into the exhaust body 13. One end of the push rod 3 is hinged to the top of the top cap 5 by a pin 1, and the other end of the push rod 3 passes through the exhaust body 13 and enters the pump cover 7. The base 11 is a T-shaped hole nut, including an end cap and a screw segment. The end cap is located inside the pump cover 7. The screw segment passes through and extends out of the cover hole at the top of the pump cover 7, and is threadedly connected to the base locking nut 6 at the extended end to achieve connection. Specifically, the base 11 has an axial center hole, and the outer peripheral side of the screw segment is provided with an external thread, which can pass through the cover hole at the top of the pump cover 7 and cooperate with the circumferential limit of the cover hole. The exhaust body 13 is inserted into the center hole of the base 11. The exhaust body 13 is inserted from one end of the end cap of the base 11 and is elastically limited below the end cap of the base 11 under the restriction of its T-shaped end. A switch knob 2 is connected above the top cap 5 to control the up and down movement of the push rod 3.

[0038] like Figure 2 and Figure 3 As shown, an annular groove is formed in the middle of the push rod 3, and a sealing ring 4 is disposed in the annular groove. The sealing ring 4 fully contacts the inner wall of the exhaust body 13, forming a piston connection. A sealing ring 2 10 is sealed between the end cap of the base 11 and the pump cover 7. A sealing ring 3 12 is placed between the T-shaped end of the exhaust body 13 and the end cap of the base 11. The sealing ring 3 12 forms a seal between the exhaust body 13 and the base 11 when the exhaust body 13 is in the high position. When the exhaust body 13 is in the low position, the T-shaped end of the exhaust body 13 is separated from the end cap of the base 11, allowing gas to be discharged from the pump.

[0039] The switch mechanism of the hydrodynamic proportional diluter in this embodiment is mounted on the top of the diluter. The operating principle of the diluter is as follows: a piston is installed within the diluter's pump body, with a long liquid-lifting rod connected to its lower portion. Controlled by an internal mechanical structure, the piston undergoes linear reciprocating motion within the pump body, simultaneously accommodating the liquid-lifting rod's linear motion. The liquid-lifting rod, along with the handle at the bottom of the diluter, forms a syringe-like structure. This reciprocating motion continuously draws the medication below into the pump, where it mixes with the water in the pipe.

[0040] When the proportional diluter is started for the first time, the switch mechanism of this embodiment can be pressed repeatedly and quickly to quickly discharge the air in the pump so as to achieve the normal working state of the pump as soon as possible.

[0041] When the pump needs to be shut down, the piston in the pump can be stopped by turning the knob in the switch mechanism of this embodiment. The principle is that when the knob is turned, the vertical push rod 3 is pushed downward a certain distance. This push rod 3 will press against the piston in the proportional diluter, preventing it from completing the reversing action.

[0042] like Figure 6As shown, the working principle of the exhaust function of the embodiment of the utility model is:

[0043] When the switch mechanism of this embodiment is pressed by hand, the top rod 3, top cap 5 (including the pin 1 and the switch knob 2 connected to the top cap 5), spring retaining ring 8, exhaust body 13 and sealing ring 3 12 in the switch mechanism move downward as a whole to overcome the elastic supporting force of the spring 9, thereby opening a gap between the sealing ring 3 12 and the base 11, and connecting the inside and outside of the proportional diluter, thereby achieving the purpose of rapid exhaust; when the hand releases the pressure, the above-mentioned whole moves upward under the elastic force of the spring 9 until the sealing ring 3 12 is squeezed again between the T-shaped end of the exhaust body 13 and the base 11, and is re-sealed.

[0044] The push rod 3, sealing ring 4, and top cap 5 (including the pin 1 and switch knob 2 connected to the top cap 5) in the switch mechanism of this embodiment constitute a crank slider mechanism. The push rod 3 is hinged to the switch knob 1 through the pin 1, and the switch knob 2 and the top cap 5 are movably matched. Specifically, two end plates 51 are fixed to the top of the top cap, and the two end plates 51 are arranged at intervals. The inner side of the end plate 51 (the side facing each other of the two end plates 51) is provided with a horizontal sliding groove 52. The end of the switch knob 2 protrudes outward with two circular shafts 21, and the two circular shafts 21 slide in the two sliding grooves 52. When the switch knob 2 is rotated, the switch knob rotates around the pin 1 while driving the push rod 3 to move up and down. At the same time, the circular shaft 21 slides adaptively in the sliding groove 52. The process is as follows: Figures 8 to 12 shown.

[0045] like Figure 7 As shown, the working principle of the switch function of the embodiment of the utility model is:

[0046] When the switch knob 2 is rotated 180° from right to left, the push rod 3 moves downward for a distance, thereby holding the piston in the pump and preventing it from reciprocating, thus achieving the stop function; conversely, when the switch knob 2 is rotated 180° from left to right, the push rod 3 moves upward for a distance, releasing the piston in the pump, allowing it to continue working. In this way, the pump can be turned on and off.

[0047] The parts not described in detail in the present invention are conventional technical means well known to those skilled in the art.

[0048] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0049] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A hydrodynamic proportional diluter switch mechanism, mounted on the top of a pump cover (7) of a hydrodynamic proportional diluter, characterized in that: The invention comprises a top cap (5) matched with a pump cover (7), wherein the center of the bottom of the top cap (5) is connected with an exhaust body (13), the outer shell of the exhaust body (13) is connected with a base (11), and the exhaust body (13) and the base (11) are clearance-matched; one end of the base (11) is passed through the top cover hole of the pump cover (7) from the inner side and is threadedly connected to the base locking nut (6) at the passed end to achieve assembly; a center hole is opened in the center of the base (11) and passes through the top and bottom; the end of the exhaust body (13) away from the top cap (5) is free to pass through the center hole and a T-shaped end with an outer diameter larger than the diameter of the center hole is provided at the end; the top cap (5) and the base (11) are axially elastic The exhaust body (13) is connected to the top cap (5) so that the T-shaped end of the exhaust body (13) connected to the bottom of the top cap (5) is in elastic sealing contact with the end face of the base (11); the top of the top cap (5) is movably connected to the switch knob (2); a push rod (3) is inserted into the exhaust body (13) in a piston-like manner; one end of the push rod (3) is hinged to the switch knob (2), and the other end passes through the top cap (5), the exhaust body (13) and the inside of the pump cover (7); when the top cap (5) is pressed, the exhaust body (13) is separated from the end face of the base (11); when the switch knob (2) is rotated, the exhaust body (13) and the base (11) remain sealed and stationary, and the push rod (3) moves downward.

2. The hydrodynamic proportional diluter switch mechanism according to claim 1, characterized in that: A sealing ring 3 (12) is fixedly connected to the position where the T-shaped end of the exhaust body (13) meets the end surface of the base (11).

3. The hydrodynamic proportional diluter switch mechanism according to claim 1, characterized in that: At least one sealing ring (4) is provided between the push rod (3) and the inner wall of the exhaust body (13).

4. The hydrodynamic proportional diluter switch mechanism according to claim 1, characterized in that: A second sealing ring (10) is provided at the position where the base (11) and the inner side of the pump cover (7) meet.

5. The hydrodynamic proportional diluter switch mechanism according to claim 1, characterized in that: A spring (9) is provided between the bottom of the top cap (5) and the base (11), and the spring (9) is sleeved outside the exhaust body (13).

6. The hydrodynamic proportional diluter switch mechanism according to claim 5, characterized in that: A spring retaining ring (8) is provided at the connection position between the exhaust body (13) and the top cap (5). The spring retaining ring (8) has an internal thread and an external thread. The internal thread cooperates with the thread of the exhaust body (13), and the external thread cooperates with the thread of the top cap (5).

7. The hydrodynamic proportional diluter switch mechanism according to claim 6, characterized in that: One end of the spring (9) abuts against the bottom of the spring retaining ring (8), and the other end abuts against the inner end surface of the center hole of the base (11).

8. The hydrodynamic proportional diluter switch mechanism according to claim 1, characterized in that: The switch knob (2) is hinged to the push rod (3) via a pin (1).

9. The hydrodynamic proportional diluter switch mechanism according to claim 1, characterized in that: The outer shape of the top cap (5) is adapted to the top shape of the pump cover (7).

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