Pedal flush valve

Abstract

The utility model discloses a pedal flush valve which comprises a treading part, the treading part comprises a driving rod, a pedal and an anti-steering balancing weight, the driving rod is horizontally arranged, one end of the driving rod is a driving end, the other end of the driving rod is a mounting end, the mounting end is cylindrical, and the pedal is arranged on the driving rod. An annular locking groove is formed in the circumferential surface of the mounting end; a mounting hole allowing the mounting end to be inserted therein is formed above the center line of the balancing weight, a threaded hole communicated with the mounting hole is formed in the top of the balancing weight, the balancing weight is arranged outside the mounting end in a sleeving mode, and the threaded hole corresponds to the locking groove; a bolt matched with the threaded hole is arranged at the bottom of the pedal and extends into the locking groove. The pedal is connected with the balancing weight, the balancing weight is rotatably arranged at the mounting end, and after the pedal is treaded every time, the heavier end of the balancing weight automatically faces downwards, the lighter end of the balancing weight automatically faces upwards, and the balancing weight returns to the initial state, so that the pedal finally returns to the original state no matter how a user treads the pedal.

Description

Technical Field

[0001] The utility model relates to an improved invention of a flushing valve, in particular to a pedal flushing valve. Background Art

[0002] Foot-operated flush valves are commonly used in squat toilets in public places. The valve is opened by stepping on the pedal, and water flows out to flush the toilet. Although foot-operated flush valves are convenient to use, the direction of the pedal will deviate each time the foot is stepped on, and the pedal will also turn, often tilting. In this case, the direction of the foot must be changed to match the tilted pedal, and as the number of uses increases, the tilt angle increases, and eventually the pedal position needs to be manually readjusted. Summary of the invention

[0003] In view of the technical problems existing in the background technology, the technical problem solved by the utility model is to provide a foot-operated flushing valve with a pedal kept in a horizontal state.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: the foot-operated flushing valve is characterized in that it includes a pedal component, which includes a driving rod, a pedal and an anti-steering counterweight.

[0005] A driving rod is arranged horizontally, one end of the driving rod is a driving end, and the other end of the driving rod is a mounting end, the mounting end is cylindrical, and an annular locking groove is provided on the circumferential surface of the mounting end;

[0006] A counterweight block, wherein a mounting hole is provided above the center line thereof for inserting the mounting end, a threaded hole communicating with the mounting hole is provided on the top of the counterweight block, the counterweight block is sleeved outside the mounting end, and the threaded hole corresponds to the locking groove;

[0007] The pedal has a bottom provided with a bolt matching the threaded hole, and the bolt extends into the locking groove.

[0008] The pedal of the utility model is connected with a counterweight block, which is rotatably arranged at the installation end. Each time the pedal is stepped on, the heavier end of the counterweight block automatically faces downward and the lighter end automatically faces upward to return to the initial state. Therefore, no matter how the user steps on the pedal, the pedal will eventually return to its original state.

[0009] Preferably, a step is formed at the connection between the mounting end and the driving rod body, and the outer diameter of the driving rod body is larger than the outer diameter of the mounting end. The mounting end is inserted into the mounting hole until the driving rod body blocks the counterweight block, so as to position the counterweight block for easy installation.

[0010] Preferably, the surface of the pedal is provided with anti-skid patterns; the pedal is tilted relative to the counterweight block. The anti-skid patterns increase the friction of pedaling; the pedal is slightly tilted for ease of use by the user.

[0011] Preferably, the foot-operated flushing valve further comprises a valve body and a valve stem.

[0012] A valve stem, which is vertically arranged in the valve body;

[0013] The valve body is provided with a water inlet, a water outlet and a mounting port, the pedal component is mounted on the mounting port, and the mounting port is threadedly connected with a positioning nut;

[0014] The driving end is placed in the positioning nut, and the outer diameter matches the inner cavity of the positioning nut. The connection between the driving rod body and the driving end is a spherical portion, the surface of the spherical portion is a spherical surface, the spherical portion is in sliding contact with the cap opening of the positioning nut, and the diameter of the spherical portion matches the diameter of the cap opening. The driving rod swings stably.

[0015] Preferably, the pedal component further includes a push rod and a guide member.

[0016] A push rod is arranged horizontally, one end of the push rod is a push-up end, and the other end is provided with a transmission panel, the push-up end corresponds to the lower end of the valve stem, the end surface of the drive end is a drive plane, and the transmission panel is in contact with the drive plane;

[0017] A guide member installed in the valve body, the guide member is provided with a guide channel for the pressing end of the push rod to pass through, the push rod outer sleeve is provided with a return spring, and the return spring is arranged between the transmission panel and the guide member;

[0018] When the pedal is stepped on, the driving rod swings downward and pushes the ejector rod to move along the guide channel toward the valve stem. At this time, the return spring is compressed, the ejector rod presses the valve stem, and the valve opens; when the pedal is released, the return spring pushes the ejector rod to return to its original position, and the ejector rod presses the driving rod to make its transmission panel fit the driving plane, and the driving rod swings upward to return to its original position.

[0019] Preferably, the positioning nut and the mounting opening of the valve body lock the circumferential outer edge of the guide member therebetween, and a sealing ring is provided between the circumferential outer edge of the guide member and the positioning nut or / and the mounting opening of the valve body. The positioning nut is connected to the mounting opening of the valve body and locks the guide member at the same time.

[0020] Preferably, the end of the guide member facing the transmission panel is provided with a groove, and one end of the return spring is placed in the groove. The return spring contracts stably and does not shift. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 It is a cross-sectional view of the utility model. DETAILED DESCRIPTION

[0023] The following describes the details and working principle of the implementation and embodiment of the utility model in conjunction with the accompanying drawings. This kind of foot-operated flushing valve includes a valve body 1, a valve stem 24 and a pedal component. The cooperation between the valve stem and the valve core in the valve body and the cooperation between the valve body and the valve core are all prior art, and reference can be made to the patents authorized by the applicant, such as CN215172255U, CN207080621U, CN206496057U, etc. The valve stem 24 is vertically arranged in the valve body 1, and the valve stem is sealed with the inner cavity of the valve core 23. The valve body is provided with a water inlet 11, a water outlet 12 and an installation port 13. The pedal component is installed in the installation port 13, and the installation port is threadedly connected with a positioning nut 9; when the valve stem 24 is tilted, the seal between the valve core and the valve stem is destroyed, and water is discharged from the water outlet 12; when the spring 25 in the valve core pushes the valve stem 24 to reset, the valve stem and the valve core are restored to a sealed state, and the water stops flowing.

[0024] The pedal component includes a push rod 20, a guide member 15, a driving rod 10, a pedal 2 and an anti-steering counterweight 3. The push rod 20 is horizontally arranged, one end of the push rod is a push end 17, and the other end is provided with a transmission panel 18, and the push end corresponds to the lower end of the valve stem 24. The guide member 15 is installed in the valve body. In the figure, the positioning nut 9 and the mounting port 13 of the valve body lock the circumferential outer edge of the guide member between the two, that is, the positioning nut is threadedly connected to the mounting port of the valve body and locks the guide member. A sealing ring is provided between the circumferential outer edge of the guide member and the positioning nut or / and the mounting port of the valve body to ensure locking and sealing effect to prevent water leakage; the guide member 15 is provided with a guide channel for the pressing end 17 of the push rod to pass through, and the outer sleeve of the push rod is provided with a reset spring 16, and the reset spring is arranged between the transmission panel 18 and the guide member 15; to prevent the reset spring from moving, the end of the guide member facing the transmission panel is provided with a groove 14, one end of the reset spring 16 is placed in the groove, the guide member 15 remains stationary, and the elastic force of the reset spring 16 presses the transmission panel toward the cap mouth of the positioning nut 9. The driving rod 10 is arranged horizontally, one end of the driving rod is the driving end 8, the other end is the mounting end 5, and the middle is the driving rod body 6. The driving end 8 is placed in the positioning nut 9, and the outer diameter matches the inner cavity of the positioning nut. The end face of the driving end 8 is the driving plane. When there is no external force, the elastic force of the return spring 16 makes the transmission panel 18 fit the driving plane; the mounting end 5 is cylindrical, and the circumferential surface of the mounting end is provided with an annular locking groove 21; a mounting hole for inserting the mounting end is provided above the center line 22 of the counterweight block, and the counterweight block in the figure is a rectangular parallelepiped, and a rectangular parallelepiped is preferred; the counterweight block 3 is sleeved outside the mounting end 5, which is equivalent to the counterweight block being rotatably arranged at the mounting end, then the counterweight block 3 is lighter above the driving rod 10, and the part below the driving rod is heavier, so that after the counterweight block is rotated, the counterweight block is heavier The part will still be at the bottom, and the lighter part will face upward, automatically returning to the initial state; the connection between the mounting end 5 and the driving rod body 6 forms a step, the outer diameter of the driving rod body is larger than the outer diameter of the mounting end, and the mounting end 5 is inserted into the mounting hole until the driving rod body 6 blocks the counterweight 3, so that the axial position of the counterweight is positioned, which is convenient for the subsequent installation; the top of the counterweight is provided with a threaded hole connected to the mounting hole, that is, the counterweight above the driving rod, and the threaded hole corresponds to the locking groove 21; the bottom of the pedal 2 is provided with a bolt 4 matching the threaded hole, the bolt extends into the locking groove 21, the pedal is installed on the top of the counterweight, that is, the top of the lighter end, also called the initial state, the counterweight makes the pedal return to the initial state after each use; the bolt 4 prevents the counterweight 3 from axially moving relative to the driving rod 10, and can only rotate or swing axially. The surface of the pedal 2 is provided with anti-skid patterns to increase the friction of stepping; the pedal is tilted relative to the counterweight, and the pedal is slightly tilted, which is more convenient for users to step on it.In order to make the drive rod 10 swing stably, the connection between the drive rod body and the drive end is a spherical portion 7, the surface of the spherical portion is a spherical surface, the spherical portion 7 is in sliding contact with the cap opening 19 of the positioning nut 9, and the diameter of the spherical portion matches the diameter of the cap opening.

[0025] When in use, the pedal 2 is stepped on, the mounting end of the driving rod 10 swings downward, the spherical portion 7 slides relative to the cap opening 19, the driving end 8 of the driving rod overcomes the elastic force of the return spring 16, tilts into the valve body, and pushes the push rod 20 to move along the guide channel toward the valve stem. At this time, the return spring is compressed, the push rod presses the valve stem 24, and the valve opens; the pedal 2 is released, the elastic force of the return spring 16 pushes the push rod 20 to reset, the push rod presses the driving end 8, so that its transmission panel fits the driving plane, and the driving rod 10 swings upward to reset; after each step on the pedal, even if the pedal 2 and the counterweight block 3 rotate relative to the driving rod or the driving rod rotates, the heavier end of the counterweight block automatically faces downward due to gravity, and the lighter end faces upward, and finally the pedal returns to its initial state.

Claims

1. A foot-operated flushing valve, characterized in that: The invention comprises a treading component, wherein the treading component comprises a driving rod, a pedal and an anti-steering counterweight. A driving rod is arranged horizontally, one end of the driving rod is a driving end, and the other end of the driving rod is a mounting end, the mounting end is cylindrical, and an annular locking groove is provided on the circumferential surface of the mounting end; A counterweight block, wherein a mounting hole is provided above the center line thereof for inserting the mounting end, a threaded hole communicating with the mounting hole is provided on the top of the counterweight block, the counterweight block is sleeved outside the mounting end, and the threaded hole corresponds to the locking groove; The pedal has a bottom provided with a bolt matching the threaded hole, and the bolt extends into the locking groove.

2. The foot-operated flushing valve according to claim 1, characterized in that: A step is formed at the connection between the mounting end and the driving rod body, and the outer diameter of the driving rod body is larger than the outer diameter of the mounting end.

3. The foot-operated flushing valve according to claim 1, characterized in that: The surface of the pedal is provided with anti-skid grooves; the pedal is arranged tilted relative to the counterweight block.

4. The foot-operated flushing valve according to claim 1, characterized in that: The foot-operated flushing valve also includes a valve body and a valve stem. A valve stem, which is vertically arranged in the valve body; The valve body is provided with a water inlet, a water outlet and a mounting port, the pedal component is mounted on the mounting port, and the mounting port is threadedly connected with a positioning nut; The driving end is placed in the positioning nut, and its outer diameter matches the inner cavity of the positioning nut. The connection between the driving rod body and the driving end is a spherical portion, the surface of the spherical portion is a spherical surface, the spherical portion is in sliding contact with the cap opening of the positioning nut, and the diameter of the spherical portion matches the diameter of the cap opening.

5. The foot-operated flushing valve according to claim 4, characterized in that: The pedal component also includes a push rod and a guide member. A push rod is arranged horizontally, one end of the push rod is a push-up end, and the other end is provided with a transmission panel, the push-up end corresponds to the lower end of the valve stem, the end surface of the drive end is a drive plane, and the transmission panel is in contact with the drive plane; A guide member installed in the valve body, the guide member is provided with a guide channel for the pressing end of the push rod to pass through, the push rod outer sleeve is provided with a return spring, and the return spring is arranged between the transmission panel and the guide member; When the pedal is stepped on, the driving rod swings downward and pushes the ejector rod to move along the guide channel toward the valve stem. At this time, the return spring is compressed, the ejector rod presses the valve stem, and the valve opens; when the pedal is released, the return spring pushes the ejector rod to return to its original position, and the ejector rod presses the driving rod to make its transmission panel fit the driving plane, and the driving rod swings upward to return to its original position.

6. The foot-operated flushing valve according to claim 5, characterized in that: The positioning nut and the mounting opening of the valve body lock the circumferential outer edge of the guide member between the two, and a sealing ring is provided between the circumferential outer edge of the guide member and the positioning nut and / or the mounting opening of the valve body.

7. The foot-operated flushing valve according to claim 5, characterized in that: The end of the guide member facing the transmission panel is provided with a groove, and one end of the return spring is placed in the groove.

Images