Time-delay valve core
By setting openings on the side of the flow control shaft of the delay valve core, irregular slow flow holes are formed, the problem of unstable water outlet time of the delay valve core is solved, and the effect of uniform water flow entering the cavity and stabilizing the water outlet time is achieved.
Patent Information
- Application Number
- CN202420832604.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-04-22
AI Technical Summary
After a long time of use, due to the internal and external pressure difference of the faucet or the surface tension of the water, the flow rate entering the cavity changes, and the time for filling the cavity with water is unstable, which in turn leads to unstable water outlet time.
A delay valve core is designed, by setting an opening on the side of the flow control shaft to form a slow flow hole with irregular shape between the flow control shaft and the through hole of the piston. When the water flow passes through the slow flow hole, it is directed from irregular places, so that the water flow evenly enters the second cavity and stabilizes the full water storage time.
Through the design of irregular slow flow holes, the water flow is ensured to enter the second cavity evenly without obstacles, and stabilize the water filling time of the second cavity and the water outlet time of the water outlet.
Smart Images
Figure CN222864259U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a time-delay valve core. Background Art
[0002] Faucets are common and frequently used tools in people's daily lives. In some public places, in order to save water, time-delay valve cores are basically used.
[0003] After the handle of the time-delay valve core is pressed, water will flow for a certain period of time, and then the valve core will automatically close and the water flow will stop. The time of water flow is related to the time when the cavity of the time-delay cylinder at the lower end of the valve core is filled with water. The water inside the time-delay cylinder enters the cavity of the time-delay cylinder through the regular annular gap between the conical bottom end of the valve stem and the through hole in the middle of the piston, and the distance between the conical bottom end and the through hole of the piston can be adjusted to adjust the size of the annular gap to adjust the time when the cavity is filled with water, thereby adjusting the time when the valve core discharges water. However, after long-term use of this structure, the water flow entering the cavity may change due to the internal and external pressure difference of the faucet or the surface tension of the water, resulting in unstable time when the cavity is filled with water, which leads to the problem of unstable water discharge time. Utility Model Content
[0004] The utility model provides a time-delay valve core.
[0005] The technical solution adopted by the utility model to solve the above technical problems is:
[0006] A time-delay valve core comprises a handle, a pressing piece, a connecting piece, a valve core seat and a time-delay cylinder arranged from top to bottom, the pressing piece is arranged inside the handle, a spring is fixed between the pressing piece and the connecting piece, the valve core seat is sealed and connected to the inner side of the bottom end of the connecting piece, a water outlet is arranged at intervals on the outer wall of the valve core seat, a first cavity is arranged inside the valve core seat, the time-delay cylinder comprises a water inlet, the water inlet is arranged on the upper end side wall of the time-delay cylinder, a valve stem is arranged at the lower end of the pressing piece, the valve stem passes through the connecting piece and the valve core seat, and a A main shaft, a flow control shaft is arranged at the bottom end of the main shaft; the flow control shaft is a tapered shaft, and an opening is arranged on the side wall, the upper end of the opening is small and the lower end is large; the bottom end of the valve stem is connected with a piston, the lower end of the piston is sleeved with a sealing ring, the sealing ring is located on the inner side of the delay cylinder and at the lower end of the water inlet, the sealing ring abuts against the inner wall of the delay cylinder, a second cavity is formed between the sealing ring and the delay cylinder, a through hole is arranged in the middle of the piston, the flow control shaft can be extended into the through hole, the distance that the flow control shaft enters the through hole can be adjusted, and a slow flow hole is formed between the flow control shaft and the through hole.
[0007] Preferably, the pressing member and the handle are fixed with screws.
[0008] Preferably, a thread is provided at the lower end of the connecting piece, and a rubber sealing ring is provided at the upper end of the thread.
[0009] Preferably, a sealing rubber ring is provided at the upper end of the water inlet, and the lower end of the valve stem is sealingly connected to the bottom end of the valve core seat.
[0010] Preferably, the opening is in a V-shape.
[0011] Preferably, the slow flow hole is in the shape of a ring with triangular protrusions on the inner side, the number of triangular protrusions is the same as the number of openings on the flow control shaft, and the size of the slow flow hole is related to the distance that the flow control shaft enters the through hole.
[0012] Preferably, the flow control shaft is a conical shaft, and an opening is provided on the side wall. The shape of the opening is a flat inclined surface, with a small upper end and a large lower end. The number of openings can be set according to actual needs. A slow flow hole is formed between the flow control shaft and the through hole. The slow flow hole is shaped like a circular ring with a flat protrusion on the inner side, and the number of flat protrusions is the same as the number of openings on the flow control shaft.
[0013] Preferably, the flow control shaft is a cylindrical shaft, and an opening is provided on the side wall. The shape of the opening is V-shaped, with a small upper end and a large lower end. The number of openings can be set according to actual needs. A slow flow hole is formed between the flow control shaft and the through hole. The slow flow hole is in the shape of an inward triangular protrusion, and the number of triangular protrusions is the same as the number of openings on the flow control shaft.
[0014] Preferably, the flow control shaft is a cylindrical shaft, and an opening is provided on the side wall. The shape of the opening is a flat inclined surface, with a small upper end and a large lower end. The number of openings can be set according to actual needs. A slow flow hole is formed between the flow control shaft and the through hole. The slow flow hole is in the shape of a flat protrusion facing inward, and the number of flat protrusions is the same as the number of openings on the flow control shaft.
[0015] Compared with the prior art, the utility model provides a time-delay valve core with an opening on the side of the flow control shaft to form an irregularly shaped slow-flow hole between the flow control shaft and the through hole of the piston, so that when the water flows through the slow-flow hole, the irregular part plays a role of guiding the water, so that the water can enter the second cavity evenly and unobstructed, thereby ensuring the stability of the time for the second cavity to be filled with water and the stability of the water outlet time. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional schematic diagram of a time-delay valve core of the utility model.
[0017] Figure 2 It is a cross-sectional view of a time-delay valve core of the utility model.
[0018] Figure 3This is a schematic diagram of Example 1 of a time-delay valve core of the utility model.
[0019] Figure 4 It is a top view of the slow flow hole of Example 1 of a time-delay valve core of the utility model.
[0020] Figure 5 This is a schematic diagram of Example 2 of a time-delay valve core of the utility model.
[0021] Figure 6 It is a top view of the slow flow hole of Example 2 of a time-delay valve core of the utility model.
[0022] Figure 7 This is a schematic diagram of Example 3 of a time-delay valve core of the utility model.
[0023] Figure 8 It is a top view of the slow flow hole of Example 3 of a time delay valve core of the utility model.
[0024] Fig. 9 This is a schematic diagram of Example 4 of a time-delay valve core of the utility model.
[0025] Fig.10 It is a top view of the slow flow hole of Example 4 of a time delay valve core of the utility model. DETAILED DESCRIPTION
[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0027] like Figures 1 to 4 As shown, a time-delay valve core comprises a handle 1, a pressing member 2, a connecting member 7, a valve core seat 6 and a time-delay cylinder 5 arranged from top to bottom, wherein the pressing member 2 is arranged inside the handle 1, and the pressing member 2 and the handle 1 are fixed with screws.
[0028] A spring 21 is fixed between the pressing member 2 and the connecting member 7. A thread 71 is provided at the lower end of the connecting member 7 for connecting with a faucet, and a rubber sealing ring is provided at the upper end of the thread 71 for preventing water from flowing out of the handle 1 end.
[0029] The valve core seat 6 is sealed and connected to the inner side of the bottom end of the connecting member 7 . The outer wall of the valve core seat 6 is provided with water outlets 62 at intervals. The interior of the valve core seat 6 is provided with a first cavity 61 .
[0030] The delay cylinder 5 comprises a water inlet 51 , which is arranged on the upper side wall of the delay cylinder 5 . A sealing rubber ring is arranged on the upper end of the water inlet 51 to prevent water at the water inlet 51 from overflowing.
[0031] A valve stem 3 is provided at the lower end of the pressing member 2, and the valve stem 3 passes through the connecting member 7 and the valve core seat 6. The lower end of the valve stem 3 is sealed and connected to the bottom end of the valve core seat 6. A main shaft 31 is provided inside the valve stem 3, and a flow control shaft 32 is provided at the bottom end of the main shaft 31; the flow control shaft 32 is a conical shaft, and an opening is provided on the side wall. The shape of the opening is V-shaped, the upper end of the opening is small and the lower end is large, and the number of openings can be set according to actual needs.
[0032] The bottom end of the valve stem 3 is connected to a piston 4, and a sealing ring 42 is sleeved on the lower end of the piston 4. The sealing ring 42 is located inside the delay cylinder 5 and at the lower end of the water inlet 51. The sealing ring 42 abuts against the inner wall of the delay cylinder 5, and a second cavity 52 is formed between the sealing ring 42 and the delay cylinder 5.
[0033] A through hole 41 is provided in the middle of the piston 4, and the flow control shaft 32 can extend into the through hole 41. The distance that the flow control shaft 32 enters the through hole 41 can be adjusted. A slow flow hole 43 is formed between the flow control shaft 32 and the through hole 41. The slow flow hole 43 is in the shape of a circular ring with triangular protrusions on the inner side. The number of triangular protrusions is the same as the number of openings on the flow control shaft 32, and the size of the slow flow hole 43 is related to the distance that the flow control shaft 32 enters the through hole 41. When the distance that the flow control shaft 32 enters the through hole 41 is short, the slow flow hole 43 is larger; when the distance that the flow control shaft 32 enters the through hole 41 is long, the slow flow hole 43 is smaller; the second cavity 52 is connected to the water inlet 51 through the slow flow hole 43.
[0034] When the faucet is not in use, the spring 21 is in a slightly compressed state, and the second cavity 52 of the delay cylinder 5 is filled with water; when the faucet is used, the handle 1 is pressed downward, and the handle 1 drives the pressing piece 2 and the valve stem 3 to move downward. When the valve stem 3 moves downward, the spring 21 is compressed, the piston 4 is driven to move downward, the water in the second cavity 52 is squeezed out, and the first cavity 61 is connected to the water inlet 51, and the water flows into the first cavity 61 and flows out from the water outlet 62; because the spring 21 is compressed, when the spring 21 is reset, it drives the piston 4 to move upward, and at the same time, the water flows into the second cavity 52 through the slow flow hole 43. Due to the irregular shape of the slow flow hole 43, the irregular part plays a guiding role, so that the water flows into the second cavity 52 evenly and unobstructedly, ensuring the stability of the time for the second cavity 52 to be filled with water, and ensuring the stability of the water outlet time of the water outlet 62.
[0035] Example 2: Figure 5 and Figure 6As shown, the flow control shaft 32 is a conical shaft, and an opening is set on the side wall. The shape of the opening is a flat inclined surface, the upper end of the opening is small and the lower end is large. The number of openings can be set according to actual needs. A slow flow hole 43 is formed between the flow control shaft 32 and the through hole 41. The slow flow hole 43 is in the shape of a circular ring with a flat protrusion on the inner side. The number of flat protrusions is the same as the number of openings on the flow control shaft 32.
[0036] Example 3: Figure 7 and Figure 8 As shown, the flow control shaft 32 is a cylindrical shaft, and an opening is arranged on the side wall. The shape of the opening is V-shaped, the upper end of the opening is small and the lower end is large. The number of openings can be set according to actual needs. A slow flow hole 43 is formed between the flow control shaft 32 and the through hole 41. The slow flow hole 43 is in the shape of an inward triangular protrusion, and the number of triangular protrusions is the same as the number of openings on the flow control shaft 32.
[0037] Example 4: Fig. 9 and Fig.10 As shown, the flow control shaft 32 is a cylindrical shaft, and an opening is arranged on the side wall. The shape of the opening is a flat inclined surface, the upper end of the opening is small and the lower end is large. The number of openings can be set according to actual needs. A slow flow hole 43 is formed between the flow control shaft 32 and the through hole 41. The slow flow hole 43 is shaped as a flat protrusion facing inward, and the number of the flat protrusions is the same as the number of openings on the flow control shaft 32.
[0038] The utility model provides a time-delay valve core with an opening on the side of the flow control shaft 32, so that an irregularly shaped slow-flow hole 43 is formed between the flow control shaft 32 and the through hole 41 of the piston 4, so that when the water flows through the slow-flow hole 43, the irregular part plays a role of guiding the water, so that the water can enter the second cavity 52 evenly without obstacles, thereby ensuring the stability of the time for the second cavity 52 to be filled with water and the stability of the water outlet time of the water outlet 62.
[0039] Finally, it should be noted that the above embodiments only illustrate the technical solutions of the present invention, rather than limiting it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A time-delay valve core, comprising a handle (1), a pressing member (2), a connecting member (7), a valve core seat (6) and a time-delay cylinder (5) arranged from top to bottom, wherein the pressing member (2) is arranged inside the handle (1), a spring (21) is fixed between the pressing member (2) and the connecting member (7), the valve core seat (6) is sealed and connected to the inner side of the bottom end of the connecting member (7), a water outlet (62) is arranged at intervals on the outer wall of the valve core seat (6), a first cavity (61) is arranged inside the valve core seat (6), the time-delay cylinder (5) comprises a water inlet (51), and the water inlet (51) is arranged on the upper side wall of the time-delay cylinder (5), a valve stem (3) is arranged at the lower end of the pressing member (2), and the valve stem (3) passes through the connecting member (7) and the valve core seat (6), characterized in that: A main shaft (31) is arranged inside the valve stem (3), and a flow control shaft (32) is arranged at the bottom end of the main shaft (31); the flow control shaft (32) is a tapered shaft, and an opening is arranged on the side wall, and the upper end of the opening is small and the lower end is large; the bottom end of the valve stem (3) is connected to a piston (4), and the lower end of the piston (4) is sleeved with a sealing ring (42), and the sealing ring (42) is located on the inner side of the delay cylinder (5) and at the water inlet (5 1), the sealing ring (42) abuts against the inner wall of the delay cylinder (5), a second cavity (52) is formed between the sealing ring (42) and the delay cylinder (5), a through hole (41) is provided in the middle of the piston (4), the flow control shaft (32) can extend into the through hole (41), the distance that the flow control shaft (32) enters the through hole (41) can be adjusted, and a slow flow hole (43) is formed between the flow control shaft (32) and the through hole (41).
2. The time-delay valve core according to claim 1, characterized in that: The pressing piece (2) and the handle (1) are fixed with screws.
3. The time-delay valve core according to claim 1, characterized in that: The lower end of the connecting piece (7) is provided with a thread (71), and the upper end of the thread (71) is provided with a rubber sealing ring.
4. The time-delay valve core according to claim 1, characterized in that: A sealing rubber ring is provided at the upper end of the water inlet (51), and the lower end of the valve stem (3) is sealingly connected to the bottom end of the valve core seat (6).
5. The time-delay valve core according to claim 1, characterized in that: The opening is in a V-shape.
6. The time-delay valve core according to claim 1, characterized in that: The slow flow hole (43) is in the shape of a ring with triangular protrusions on the inner side, the number of triangular protrusions is the same as the number of openings on the flow control shaft (32), and the size of the slow flow hole (43) is related to the distance from the flow control shaft (32) entering the through hole (41).
7. The time-delay valve core according to claim 1, characterized in that: The flow control shaft (32) is a conical shaft, and an opening is provided on the side wall. The opening is in the shape of a flat inclined surface, with a small upper end and a large lower end. The number of the openings can be set according to actual needs. A slow flow hole (43) is formed between the flow control shaft (32) and the through hole (41). The slow flow hole (43) is in the shape of a circular ring with a flat protrusion on the inner side. The number of the flat protrusions is the same as the number of openings on the flow control shaft (32).
8. The time-delay valve core according to claim 1, characterized in that: The flow control shaft (32) is a cylindrical shaft, and an opening is provided on the side wall. The opening is in a V-shape, with a small upper end and a large lower end. The number of the openings can be set according to actual needs. A slow flow hole (43) is formed between the flow control shaft (32) and the through hole (41). The slow flow hole (43) is in the shape of an inward triangular protrusion, and the number of the triangular protrusions is the same as the number of openings on the flow control shaft (32).
9. The time-delay valve core according to claim 1, characterized in that: The flow control shaft (32) is a cylindrical shaft, and an opening is arranged on the side wall. The opening is in the shape of a flat inclined plane, with a small upper end and a large lower end. The number of the openings can be set according to actual needs. A slow flow hole (43) is formed between the flow control shaft (32) and the through hole (41). The slow flow hole (43) is in the shape of a flat protrusion facing inward, and the number of the flat protrusions is the same as the number of openings on the flow control shaft (32).