Valve rod limiting protection structure of faucet valve element

Abstract

A valve rod limiting protection structure of a faucet valve element comprises a valve shell and a valve rod, the valve rod is arranged in the valve shell in a penetrating mode, the upper end of the valve rod is exposed out of the top of the valve shell, the middle of the valve rod is rotationally connected with the valve shell through a pin shaft so that the valve rod can swing, a drive plate, a movable valve plate and a fixed valve plate are arranged in the valve shell, and the drive plate is fixed above the movable valve plate. The lower end of the valve rod is inserted into a concave cavity of the driving plate to drive the driving plate and the movable valve plate to swing, the fixed valve plate is arranged below the movable valve plate, and the valve rod is located at the closing position when located at the middle position of 0 degree. The limiting block directly or indirectly abuts against the valve shell to prevent the valve rod from further swinging towards the closing position. The faucet valve element has the advantages that the limiting block can transmit external force acting on the valve rod to the valve shell, when a user exerts too large force on the valve rod, the valve rod is prevented from being bent and damaged, the use effect of the faucet valve element is guaranteed, and the service life of the faucet valve element is prolonged.

Description

Technical Field

[0001] The utility model relates to a faucet valve core, in particular to a valve rod limit protection structure of a faucet valve core. Background Art

[0002] At present, faucet valve cores on the market can be divided into two categories according to their functions. One is a mixing valve core that can control the opening and closing of the cold and hot water inlet waterways, and adjust the water temperature and water volume; the other is a diverter valve core that can control the water flow direction of the water outlet. Due to the limitations of the functions of the two types of valve cores, in actual use, the two types of valve cores are often used in combination to achieve the functions of diverting, adjusting the water temperature and flow rate. However, when the two types of valve cores are simultaneously in the faucet body, it will lead to a complex structure, large volume and high processing difficulty of the faucet body.

[0003] Therefore, there has emerged a faucet valve core that combines a mixing valve core and a diverter valve core in the prior art. As shown in the Chinese utility model "Two-in-two-out valve core with 0-degree closing" with the patent number CN202321067255.0 (the authorized announcement number is CN220249016U), it includes a valve housing, a valve handle, and a rotor, a dial, a movable valve piece and a fixed valve piece installed in the valve housing. The valve core realizes the mixing function by rotating the valve handle, realizes the diverting function by swinging the valve handle, and the closing can only be realized by swinging when the valve handle is in the 0-degree state.

[0004] Although the above faucet valve core realizes its mixing and diverting functions by rotating and swinging the valve rod, when the valve rod of the valve core swings, if the user applies too much force to the valve rod, the external force acting on the valve rod may cause the valve rod to bend and break, thus causing damage to the faucet valve core, and further affecting the use effect and service life of the faucet valve core. For this reason, further improvement needs to be made to the valve rod of the faucet valve core. Summary of the Invention

[0005] The first technical problem to be solved by the utility model is to provide a valve rod limit protection structure of a faucet valve core with reasonable structure and capable of realizing switching and diverting in view of the above-mentioned prior art status.

[0006] The second technical problem to be solved by the utility model is to provide a valve rod limit protection structure of a faucet valve core with reasonable structure and capable of realizing switching, diverting and mixing in view of the above-mentioned prior art status.

[0007] The technical solution adopted by the present utility model to solve the first technical problem is as follows: The valve rod limit protection structure of the faucet valve core includes a valve housing and a valve rod. The valve rod is inserted through the valve housing, and the upper end of the valve rod is exposed outside the top of the valve housing. The middle part of the valve rod is rotatably connected to the valve housing through a pin shaft to realize the swing of the valve rod. A dial, a movable valve plate and a fixed valve plate are arranged inside the valve housing. The dial is fixed above the movable valve plate. The lower end of the valve rod is inserted into the concave cavity of the dial to drive the dial and the movable valve plate to swing. The fixed valve plate is arranged below the movable valve plate. When the valve rod is at the 0-degree middle position, it is in the closed position. It is characterized in that a limit block is arranged on the valve rod. When the valve rod swings to the closed position, the limit block directly or indirectly abuts against the valve housing to prevent the valve rod from further swinging towards the closed position.

[0008] As a scheme for the limit block to indirectly abut against the valve housing, preferably, a baffle is arranged at the top of the valve housing. When the valve rod swings to the closed position, the limit block can abut against the baffle to block the valve rod from further swinging towards the closed position. The limit block indirectly acts on the valve housing through the baffle, which is convenient for transmitting the external force acting on the valve rod to the valve housing, thereby avoiding the valve rod from being bent and damaged.

[0009] In order to enable the swing of the valve rod to achieve different water distribution effects, preferably, a spring and a bullet head arranged on the spring are further arranged inside the valve rod. The spring and the bullet head are arranged parallel to the pin shaft. A plurality of gear slots corresponding to the bullet head are arranged on the valve housing. The plurality of gear slots are arranged along the swing direction of the valve rod. During the swing of the valve rod, the bullet head on the valve rod can be stuck in different gear slots under the action of the spring, making the swing gear of the valve rod clearer.

[0010] Furthermore, the end of the bullet head is conical, and the gear slot is a V-shaped slot. The conical bullet head and the V-shaped slot are more convenient for the valve rod to switch gears.

[0011] Compared with the prior art, the advantages of the present utility model are as follows: By arranging a limit block on the valve rod, the faucet valve core can directly or indirectly abut against the valve housing to block the valve rod from further swinging towards the closed position, that is, the limit block can transmit the external force acting on the valve rod to the valve housing. When the user applies too much force to the valve rod, the valve housing bears the external force, thereby avoiding the valve rod from being bent and damaged, and further ensuring the use effect of the faucet valve core and prolonging the service life of the faucet valve core. And the faucet valve core realizes the opening and closing of the valve core or the change of the water flow through the swinging valve rod, the dial and the movable valve plate, so that the faucet valve core has the functions of opening and closing or water distribution.

[0012] The technical solution adopted by the present utility model to solve the second technical problem is as follows: The valve rod limiting and protecting structure of the faucet valve core includes a valve housing and a valve rod. A rotor, a dial, a moving valve plate and a fixed valve plate are arranged in the valve housing. The valve rod passes through the valve housing and the upper end of the valve rod is exposed outside the top of the valve housing. The middle part of the valve rod is rotatably connected to the rotor through a pin shaft to realize the swing of the valve rod relative to the rotor and the rotation of the rotor along with the valve rod. The dial is constrained at the bottom of the rotor and can rotate with the rotor and can slide relative to the rotor. The moving valve plate is fixed at the bottom of the dial, and the fixed valve plate is fixed at the bottom inside the valve housing. The rotation of the moving valve plate is used to adjust the mixing ratio of cold water and hot water, and the sliding of the moving valve plate is used to switch different water outlet channels and to close the water inlet. When the valve rod is at the 0-degree middle position, it is in the closed position. It is characterized in that a limiting block is arranged on the valve rod. When the valve rod swings to the closed position, the limiting block directly or indirectly abuts against the rotor to prevent the valve rod from further swinging towards the closed position.

[0013] As a scheme for the limiting block to indirectly abut against the rotor, preferably, a baffle is arranged at the top of the rotor. When the valve rod swings to the closed position, the limiting block can abut against the baffle to block the valve rod from further swinging towards the closed position. The limiting block acts on the rotor indirectly through the baffle, which is convenient for transmitting the external force acting on the valve rod to the rotor, thereby avoiding the valve rod from being bent and damaged.

[0014] In order to enable the swing of the valve rod to achieve different water distribution effects, preferably, a spring and a bullet head arranged on the spring are further arranged in the valve rod. The spring and the bullet head are arranged parallel to the pin shaft, and a plurality of gear grooves corresponding to the bullet head are arranged on the rotor. The plurality of gear grooves are arranged along the swing direction of the valve rod. During the swing of the valve rod, the bullet head on the valve rod can be stuck in different gear grooves under the action of the spring, making the swing gear of the valve rod clearer.

[0015] Furthermore, the end of the bullet head is conical, and the gear groove is a V-shaped groove. The conical bullet head and the V-shaped groove are more convenient for the valve rod to switch gears.

[0016] Compared with the prior art, the advantages of the present utility model are as follows: By arranging a limiting block on the valve stem, the water tap valve core can directly or indirectly abut against the rotor to block the further swing of the valve stem towards the closed position, that is, the limiting block can transfer the external force acting on the valve stem to the rotor. When the user applies too much force to the valve stem, the rotor bears the external force, thus avoiding the bending and damage of the valve stem, further ensuring the use effect of the water tap valve core and prolonging the service life of the water tap valve core. And the water tap valve core is also provided with a rotor. Rotating the valve stem drives the moving valve plate to rotate by means of the rotor and the dial plate to adjust the mixing ratio of cold water and hot water, so as to adjust the water temperature and water volume to achieve water mixing. Swinging the valve stem drives the moving valve plate to slide by means of the dial plate to switch different water outlet channels and to close the water inlet, thus having the functions of switching and water distribution. Therefore, the water tap valve core has functions such as switching, water mixing and water distribution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of Embodiment 1 of the present utility model;

[0018] Figure 2 is a cross-sectional view of Embodiment 1 of the present utility model;

[0019] Figure 3 is an exploded view of the valve stem and the valve housing in Embodiment 1 of the present utility model;

[0020] Figure 4 is a schematic structural diagram of Embodiment 2 of the present utility model;

[0021] Figure 5 is a cross-sectional view of Embodiment 2 of the present utility model;

[0022] Figure 6 is an exploded view of the valve stem and the rotor in Embodiment 2 of the present utility model DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model will be further described in detail below in conjunction with the embodiments of the drawings.

[0024] As Figures 1 to 3 shown, it is Embodiment 1 of the present utility model.

[0025] As Figures 1 to 3As shown, the valve stem limiting protection structure of the faucet valve core of this embodiment includes a valve housing 1 and a valve stem 2. The valve stem 2 is inserted into the valve housing 1 and the upper end of the valve stem 2 is exposed at the top of the valve housing 1. The middle part of the valve stem 2 is rotatably connected to the valve housing 1 through a pin shaft 21 to realize the swing of the valve stem 2. A dial 3, a movable valve disc 4 and a fixed valve disc 5 are provided in the valve housing 1. The dial 3 is fixed above the movable valve disc 4. The lower end of the valve stem 2 is inserted into the concave cavity of the dial 3 to drive the dial 3 and the movable valve disc 4 to swing. The fixed valve disc 5 is arranged on the movable valve disc 4. The valve stem 2 is located at the middle position of 0 degrees, that is, it is in the closed position. A limit block 22 is provided on the valve stem 2, and a baffle 7 is provided on the top of the valve housing 1. When the valve stem 2 swings to the closed position, the limit block 22 can contact the baffle 7 to prevent the valve stem 2 from swinging further to the closed position, that is, the baffle 7 and the limit block 22 can transmit the external force acting on the valve stem 2 to the valve housing 1, thereby preventing the valve stem 2 from bending and being damaged. In addition, a spring 23 and a bullet 24 arranged on the spring 23 are further provided in the valve stem 2 of this embodiment. The end of the bullet 24 is conical. The spring 23 and the bullet 24 are arranged parallel to the pin shaft 21. The valve housing 1 is provided with a plurality of gear grooves 8 corresponding to the bullet 24. The gear grooves 8 are V-shaped grooves. The plurality of gear grooves 8 are arranged along the swinging direction of the valve stem 2, so that during the swinging process of the valve stem 2, the bullet 24 on the valve stem 2 can be stuck in different gear grooves 8 under the action of the spring 23, so that the swinging gear of the valve stem 2 is clearer.

[0026] The working process of this embodiment is as follows: when the valve stem 2 of this embodiment is in the middle position of 0 degrees, it is in the closed position, and the wall on the movable valve plate 5 will block the water outlet on the fixed valve plate 6. At this time, the water inlet and the water outlet on the valve housing 1 are not connected, and the faucet valve core is in a closed state; when the user applies force to swing the valve stem 2 through the pin shaft 21, the water mixing chamber on the movable valve plate 5 and the water outlet on the fixed valve plate 6 connect the water inlet and the water outlet of the valve housing 1, and the faucet valve core is in an open state, that is, water will flow out from the corresponding water outlet.

[0027] like Figures 4 to 6 Shown is Example 2 of the present utility model.

[0028] This embodiment is basically the same as Embodiment 1, except that: a rotor 6 is further provided in the valve housing 1 of this embodiment. The middle of the valve stem 2 is rotatably connected to the rotor 6 through a pin shaft 21 to realize the swing of the valve stem 2 relative to the rotor 6 and the rotation of the rotor 6 along with the valve stem 2. The dial 3 is constrained at the bottom of the rotor 6 and can rotate together with the rotor 6 and can slide relative to the rotor 6. The moving valve plate 4 is fixed to the bottom of the dial 3, and the fixed valve plate 5 is fixed to the bottom inside the valve housing 1. The rotation of the moving valve plate 4 is used to adjust the mixing ratio of cold water and hot water, and the sliding of the moving valve plate 4 is used to switch different water outlet channels and to close the water inlet. That is, rotating the valve stem 2 drives the moving valve plate 4 to rotate by means of the rotor 6 and the dial 3, and adjusts the coincidence degree between the water mixing cavity of the moving valve plate 4 and the water passing port of the fixed valve plate 5 to adjust the mixing ratio of cold water and hot water, so as to adjust the water temperature and water volume to achieve water mixing. Or swinging the valve stem 2 drives the moving valve plate 4 to slide by means of the dial 3 to switch different water outlet channels and to close the water inlet, so that the faucet valve core has the functions of switching and water distribution. In addition, the limiting block 22 of this embodiment directly abuts against the rotor 6 to prevent the valve stem 2 from further swinging towards the closed position, that is, the limiting block 22 can transmit the external force acting on the valve stem 2 to the rotor 6, thereby preventing the valve stem 2 from being bent and damaged.

Claims

1. A valve stem limit protection structure for a faucet valve core, comprising a valve housing (1) and a valve stem (2). The valve stem (2) is inserted through the valve housing (1), and the upper end of the valve stem (2) is exposed outside the top of the valve housing (1). The middle part of the valve stem (2) is rotatably connected to the valve housing (1) through a pin shaft (21) to enable the swinging of the valve stem (2). A dial (3), a movable valve plate (4), and a fixed valve plate (5) are arranged inside the valve housing (1). The dial (3) is fixed above the movable valve plate (4). The lower end of the valve stem (2) is inserted into the concave cavity of the dial (3) to drive the dial (3) and the movable valve plate (4) to swing. The fixed valve plate (5) is arranged below the movable valve plate (4). When the valve stem (2) is at the 0-degree intermediate position, that is, in the closed position, it is characterized in that: A limit block (22) is provided on the valve stem (2). When the valve stem (2) swings to the closed position, the limit block (22) directly or indirectly abuts against the valve housing (1) to prevent the valve stem (2) from further swinging towards the closed position.

2. The valve stem limit protection structure according to claim 1, characterized in that: A baffle (7) is provided at the top of the valve housing (1). When the valve stem (2) swings to the closed position, the limit block (22) can abut against the baffle (7) to block the valve stem (2) from further swinging towards the closed position.

3. The valve stem limit protection structure according to claim 1 or 2, characterized in that: A spring (23) and a bullet head (24) arranged on the spring (23) are further provided in the valve stem (2). The spring (23) and the bullet head (24) are arranged parallel to the pin shaft (21). A plurality of gear slots (8) corresponding to the bullet head (24) are provided on the valve housing (1), and the plurality of gear slots (8) are arranged along the swinging direction of the valve stem (2).

4. The valve stem limit protection structure according to claim 3, characterized in that: The end of the bullet head (24) is conical, and the gear slot (8) is a V-shaped slot.

5. A valve stem limit protection structure for a faucet spool, comprising a valve housing (1) and a valve stem (2). A rotor (6), a dial (3), a movable valve plate (4) and a fixed valve plate (5) are arranged inside the valve housing (1). The valve stem (2) passes through the valve housing (1), and the upper end of the valve stem (2) is exposed outside the top of the valve housing (1). The middle part of the valve stem (2) is rotatably connected to the rotor (6) through a pin shaft (21) to realize the swing of the valve stem (2) relative to the rotor (6) and the rotation of the rotor (6) along with the valve stem (2). The dial (3) is constrained at the bottom of the rotor (6) and can rotate with the rotor (6) and can slide relative to the rotor (6). The movable valve plate (4) is fixed to the bottom of the dial (3). The fixed valve plate (5) is fixed to the bottom inside the valve housing (1). The rotation of the movable valve plate (4) is used to adjust the mixing ratio of cold water and hot water. The sliding of the movable valve plate (4) is used to switch different water outlet channels and to close the water inlet. When the valve stem (2) is at the 0-degree middle position, it is in the closed position. It is characterized in that: A limit block (22) is provided on the valve stem (2). When the valve stem (2) swings to the closed position, the limit block (22) directly or indirectly abuts against the rotor (6) to prevent the valve stem (2) from further swinging towards the closed position.

6. The valve stem limit protection structure according to claim 5, wherein: A baffle (7) is provided at the top of the rotor (6). When the valve stem (2) swings to the closed position, the limit block (22) can abut against the baffle (7) to block the valve stem (2) from further swinging towards the closed position.

7. The valve stem limit protection structure according to claim 5 or 6, characterized in that: A spring (23) and a bullet head (24) arranged on the spring (23) are further provided in the valve stem (2). The spring (23) and the bullet head (24) are arranged parallel to the pin shaft (21). A plurality of gear slots (8) corresponding to the bullet head (24) are provided on the rotor (6), and the plurality of gear slots (8) are arranged along the swinging direction of the valve stem (2).

8. The valve stem limit protection structure according to claim 7, wherein: The end of the bullet head (24) is conical, and the gear slot (8) is a V-shaped slot.

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