Mechanical delay type change-over switch device
By designing a mechanically delayed switching device, the problems of driving during power outages and damage caused by user misoperation in traditional toilet flushing systems are solved, achieving a compact structure and flexible operation for toilet flushing.
Patent Information
- Application Number
- CN202520008709.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Traditional toilet flushing systems require large capacitors or high-capacity batteries to operate during power outages, resulting in high costs, short lifespans, and safety hazards. Additionally, the combination valves are prone to damage due to user misoperation.
A mechanical delay switching device was designed. By combining a delay switching mechanism, a water blocking mechanism, and a diaphragm, the device utilizes elastic storage and release to achieve water circuit switching. The linkage of gears, ratchet, and adjusting cam prevents misoperation, and a damper and locking mechanism are used to prevent damage.
It features a compact structural design, simple user operation, prevents misoperation and damage, meets the rinsing needs in different scenarios, and improves the flexibility and reliability of use.
Smart Images
Figure CN223753440U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of toilet flushing system, especially the technical field of switching device. BACKGROUND
[0002] The toilet, commonly known as a toilet, usually includes direct flushing and siphon flushing in the flushing mode; the toilet flushing system generally has two water outlets, and one water outlet is connected to the rim side (RIM side), and the other water outlet is connected to the siphon flushing side (JET side); wherein, the RIM side connection pipe outlet is usually located below the toilet seat and close to the seat, and the JET side connection pipe outlet is set lower (located in the water storage part of the toilet).
[0003] The conventional toilet flushing system generally uses a water tank water pump and a reversing valve to flush the toilet; this design requires a water pump to drive the toilet to flush during a power failure; however, since the driving power of the water pump is very large, the toilet flushing system must use a special large capacitor or large capacity battery to complete the driving operation, and such batteries often have high cost, short service life and safety hazards.
[0004] Therefore, by installing a switching valve and a switching device on the main water inlet, waterway switching can be used to ensure good flushing effect during normal times and solve the problem of power failure flushing; however, how to combine the switching valve and the switching device into a combined valve to reduce the size of the toilet flushing system needs to be solved; in addition, if the manual mechanical pressing method is used to provide power for the valve opening and closing and waterway switching of the combined valve, the combined valve is easily damaged due to repeated pressing by the user at inappropriate times. SUMMARY
[0005] The utility model discloses a mechanical delay type switching device, which can form a combined valve for delaying control of waterway opening and switching in the toilet flushing system, has a very compact structure, can meet the toilet flushing needs in different scenes, and has strong use flexibility.
[0006] To achieve the above purpose, the utility model provides a mechanical delay type switching device, which comprises a shell, a water blocking mechanism, a delay switching mechanism and a diaphragm, the shell is provided with a water inlet, a water outlet A and a water outlet B which are communicated with the switching cavity respectively, the delay switching mechanism can store elastic force during user operation and release the elastic force to open the water inlet of the diaphragm and drive the water blocking mechanism to switch the water outlet A and the water outlet B.
[0007] As preferred, the delay switch mechanism comprises a gear, a ratchet and a position adjusting cam, the gear is rotatably connected in the shell, and the position adjusting cam is indirectly connected with the gear through the ratchet.
[0008] As preferred, the delay switch mechanism has a handle slidingly connected in a sliding channel of the shell and a return force storage structure, the return force storage structure can store elastic force during the handle is manually pressed down by the user and release the elastic force after the handle is released by the user, the gear is engaged with the handle through a vertical toothed portion, the ratchet only rotates one matching tooth during the manual pressing down, and only drives the position adjusting cam to rotate with the gear during the handle is moved upward.
[0009] As preferred, the delay switch mechanism further comprises a control rod, the shell is provided with a water inlet channel accessing a water inlet, and a valve seat with a central hole is arranged in the water inlet channel, the position adjusting cam can drive the control rod to move away from or close to the valve seat during rotation to open or close the central hole through the concave-convex structure arranged on the surface.
[0010] As preferred, a sealing element is arranged on the control rod and faces the central hole, and a sealing spring is further arranged between the control rod and the shell.
[0011] As preferred, the water blocking mechanism comprises a rotating shaft, a baffle and a shaft body boss, the rotating shaft is rotatably connected at the switching cavity, the baffle is fixed on the rotating shaft and can block the water outlet A or the water outlet B during the rotation of the rotating shaft, the shaft body boss is installed on the rotating shaft and extends into the vertical sliding channel, and a boss assembly is arranged on the handle and can hit the shaft body boss to rotate the rotating shaft.
[0012] As preferred, the boss assembly is composed of a movable boss and a fixed boss arranged respectively on the left and right sides of the shaft body boss, and a boss cavity is arranged on the handle and can accommodate the movable boss during the downward movement of the handle.
[0013] As preferred, a damper is further arranged on the shell and can reduce the upward reset speed of the handle.
[0014] As preferred, a locking mechanism is further arranged on the shell and can limit the manual pressing down of the handle during the upward reset of the handle.
[0015] As preferred, the locking mechanism comprises a locking cam and a retaining spring, the locking cam is rotatably connected with the shell, the retaining spring is arranged between the locking cam and the shell, the locking cam can limit the downward movement of the handle by interlocking with the hook portion during the upward reset of the handle and can automatically release the interlocking relationship with the hook portion when the handle is reset upwardly.
[0016] The utility model discloses the beneficial effect:
[0017] 1) by the water blocking mechanism, delay switch mechanism and diaphragm combined in the shell, can use delay switch mechanism first in user operation during storage elastic release elastic to one aspect of diaphragm switch inlet and the other side drive water blocking mechanism switch out water port A and out water port B, thereby forming a delay control waterway switch and waterway switch combination valve in the toilet flushing system, not only the structure is very compact, user can one key operation, simple operation;
[0018] 2) by the gear and ratchet fixed together, the handle and the positioning cam, damper linkage, manual operation only to the recovery mechanism energy storage, recovery through the ratchet and positioning cam, damper linkage, so that the manual operation is more convenient;
[0019] 3) because the ratchet and positioning cam is initially disconnected, and the handle is provided with a movable boss, when the handle is pressed down, the handle action will not affect the whole mechanism, only when the handle is pressed to the position, the ratchet is clamped through a tooth, and the whole delay mechanism starts to work normally, which effectively prevents human error operation or operation out of position, resulting in function failure or mechanism damage by adding damper, so that the damper can be used to reduce the rising speed of the handle, to ensure that the valve switching speed and waterway switching speed meet the requirements;
[0020] 4) by adding hook on the handle, and setting the locking mechanism composed of locking cam and retaining spring on the shell, so that the locking cam and hook can be locked during the normal operation of the delay switch mechanism, to prevent the handle from being pressed down again by the user, thereby effectively preventing the delay switch mechanism from failing or being damaged.
[0021] The features and advantages of the present application will be described in detail with reference to the embodiments and drawings. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 is the three-dimensional structure schematic diagram of the mechanical delay type switch device of the utility model;
[0023] Figure 2 is the front view of the mechanical delay type switch device of the utility model;
[0024] Figure 3 is the right view of the mechanical delay type switch device of the utility model;
[0025] Figure 4 is the A-A sectional view of Figure 2 ;
[0026] Figure 5 is the B-B sectional view of Figure 2 ;
[0027] Figure 6 is Figure 2 a D-D cross-sectional view of
[0028] Figure 7 is Figure 3 a C-C cross-sectional view of
[0029] In the figure: 1 - housing, 11 - switching cavity, 12 - water inlet, 13 - water outlet A, 14 - water outlet B, 15 - valve seat, 2 - water blocking mechanism, 21 - rotating shaft, 22 - baffle, 23 - shaft body boss, 3 - delayed switching switch mechanism, 31 - handle, 311 - boss chamber, 312 - vertical tooth part, 313 - hook part, 32 - gear, 33 - movable boss, 34 - fixed boss, 35 - return force storage structure, 36 - ratchet wheel, 37 - position adjusting cam, 38 - control rod, 39 - sealing spring, 4 - diaphragm, 5 - damper, 6 - locking mechanism, 61 - locking cam, 62 - retaining spring. DETAILED DESCRIPTION
[0030] Referring to Figures 1 to 7 , the utility model mechanical delayed switching switch device, including housing 1, water blocking mechanism 2, delayed switching switch mechanism 3 and diaphragm 4, the housing 1 in it is equipped with water inlet 12, water outlet A 13 and water outlet B 14 respectively with switching cavity 11 is linked, the delayed switching switch mechanism 3 can first store elastic force during user operation and then release elastic force to make diaphragm 4 switch water inlet 12 on one hand and drive water blocking mechanism 2 to switch water outlet A 13 and water outlet B 14 on the other hand.
[0031] The delayed switching switch mechanism 3 includes gear 32, ratchet wheel 36 and position adjusting cam 37, the gear 32 is rotatably connected in the housing 1, the position adjusting cam 37 is indirectly connected with the gear 32 through the ratchet wheel 36.
[0032] The delayed switching switch mechanism 3 has handle 31 and return force storage structure 35 slidingly connected in the slide of the housing 1, the return force storage structure 35 can store elastic force during the handle 31 is manually pressed by user and release elastic force after the handle 31 is released by user, the gear 32 is engaged with the handle 31 through vertical tooth part 312, the ratchet wheel 36 only turns over a matching tooth during manual pressing, and only drives position adjusting cam 37 to rotate with the gear 32 during the handle 31 is moved.
[0033] The delayed switching switch mechanism 3 further includes control rod 38, the housing 1 is provided with water inlet channel accessing water inlet 12 and valve seat 15 with central hole in the water inlet channel, the position adjusting cam 37 can make control rod 38 away from or close to valve seat 15 during rotation to make the central hole open or close by using the concave-convex structure on the surface.
[0034] The control lever 38 is provided with a sealing element opposite to the center hole, and a sealing spring 39 is arranged between the control lever 38 and the shell 1.
[0035] The water blocking mechanism 2 comprises a rotating shaft 21, a blocking plate 22 and a shaft body boss 23, the rotating shaft 21 is rotatably connected at the switching cavity 11, the blocking plate 22 is fixed on the rotating shaft 21 and can block the water outlet A13 or the water outlet B14 during the rotation of the rotating shaft 21, the shaft body boss 23 is installed on the rotating shaft 21 and extends into the vertical slide, and the handle 31 is provided with a boss assembly which can drive the rotating shaft 21 to rotate by impacting the shaft body boss 23.
[0036] The boss assembly is jointly formed by a movable boss 33 and a fixed boss 34 which are respectively arranged on the left and right sides of the shaft body boss 23, and the handle 31 is provided with a boss cavity 311 which can accommodate the movable boss 33 during the downward movement of the handle 31.
[0037] A damper 5 is further arranged on the shell 1 and can reduce the upward reset speed of the handle 31.
[0038] A locking mechanism 6 is further arranged on the shell 1 and can limit the manual downward pressing of the handle 31 during the upward reset of the handle 31.
[0039] The locking mechanism 6 comprises a locking cam 61 and a retaining spring 62, the locking cam 61 is rotatably connected with the shell 1, the retaining spring 62 is arranged between the locking cam 61 and the shell 1, and the locking cam 61 can not only limit the downward movement of the handle 31 by interlocking with the hook portion 313 during the upward reset of the handle 31, but also can automatically release the interlocking relationship with the hook portion 313 when the handle 31 is reset to the position.
[0040] The working process of the utility model:
[0041] In use, the user first manually presses down the handle 31 to make the reset force storage structure 35 store energy, then releases the handle 31 to drive the handle 31 to reset upward by the elastic force of the reset force storage structure 35; during the upward reset of the handle 31, the delay switching switch mechanism 3 can automatically work to complete the valve switching and waterway switching operation (firstly, the delay switching switch mechanism 3 opens the diaphragm 4, so that water enters the switching cavity 11 through the water inlet 12 and flows out along the water outlet A13; after a certain time, the delay switching switch mechanism 3 closes the diaphragm 4, simultaneously switches the water outlet position from the water outlet A13 to the water outlet B14, and then opens the diaphragm 4, so that water enters the switching cavity 11 through the water inlet 12 and flows out along the water outlet B14; in addition, the above control design has two control points, and can also be cycled multiple times according to requirements).
[0042] For the part of the delay switch mechanism 3 for valve switching, during the driving of the pull handle 31 upward by the return force storage structure 35, the gear 32 can rotate with the upward movement of the vertical toothed part 312 and drive the position adjusting cam 37 to rotate by the ratchet 36, and the control rod 38 can cooperate with the sealing spring 39 to jointly open or close the center hole of the valve seat 15 by the sealing member (when the bottom end of the control rod 38 abuts against the concave-convex structure on the surface of the position adjusting cam 37 (the surface of the position adjusting cam 37 is provided with platforms with different heights), the center hole is sealed by the sealing member, and the diaphragm 4 cuts off the water inlet channel (i.e. the valve is closed); when the bottom end of the control rod 38 abuts against the convex part on the surface of the position adjusting cam 37, the center hole is open, and the diaphragm 4 is lifted by the water flow due to the pressure relief of the back pressure cavity to enable the water inlet 12 to normally take in water (i.e. the valve is opened)); the ratchet 36 does not transmit the rotating action of the gear 32 to the position adjusting cam 37 during the manual pressing of the pull handle 31 by the user (i.e. the ratchet 36 only drives the position adjusting cam 37 to rotate with the gear 32 during the driving of the pull handle 31 upward by the return force storage structure 35).
[0043] For the part of the delay switch mechanism 3 for water channel switching, the movable boss 33 will first collide with the shaft boss 23 to drive the rotating shaft 31 and the baffle 22 to rotate and complete the first water channel switching (such as switching the water outlet position from the water outlet B14 to the water outlet A13) when the pull handle 31 is driven upward by the return force storage structure 35 to a certain position, and the fixed boss 34 will also collide with the shaft boss 23 to drive the rotating shaft 31 and the baffle 22 to rotate and complete the second water channel switching (such as switching the water outlet position from the water outlet A13 to the water outlet B14) after the pull handle 31 continues to move upward by a distance; during the manual pressing of the pull handle 31 by the user, the movable boss 33 will gradually enter the boss cavity 311 (i.e. when the pull handle 31 is pressed into place, the movable boss 33 is also reset, thereby avoiding the premature water channel switching caused by the movable boss 33 during the manual pressing of the pull handle 31 by the user).
[0044] In addition, since the housing 1 is provided with the damper 5 connected with the position adjusting cam 37, the damper 5 can be used to limit the speed of the upward resetting of the pull handle 31.
[0045] During the upward resetting of the pull handle 31 by the return force storage structure 35, if the user presses the pull handle 31 again, the locking mechanism 6 can interlock the locking cam 61 with the hook part 313 above the pull handle 31 to prevent the pull handle 31 from being pressed downward (this interlocking is only released when the pull handle 31 is reset upward to the position).
[0046] The above embodiments are illustrative of the present application, but not limiting of the present application, and any simple transformation of the present application also belongs to the protection scope of the present application.
Claims
1. A mechanical delay type switchgear device, characterized by: The utility model relates to a water heater, which comprises a housing (1), a water blocking mechanism (2), a delay switch mechanism (3) and a diaphragm (4), the housing (1) is provided with a water inlet (12), a water outlet A (13) and a water outlet B (14) which are communicated with a switching cavity (11) respectively, the delay switch mechanism (3) can store elastic force during user operation and release the elastic force to switch the diaphragm (4) to the water inlet (12) and drive the water blocking mechanism (2) to switch the water outlet A (13) and the water outlet B (14).
2. The mechanical delay switch device of claim 1, wherein: The delay switch mechanism (3) comprises a gear (32), a ratchet wheel (36) and a position adjusting cam (37), the gear (32) is rotatably connected in the housing (1), and the position adjusting cam (37) is indirectly connected with the gear (32) through the ratchet wheel (36).
3. The mechanical delay switch device of claim 2, wherein: The delay switch mechanism (3) has a handle (31) which is slidably connected in a slide channel of the housing (1) and a return force storage structure (35), the return force storage structure (35) can store elastic force during the handle (31) is manually pressed by the user and release the elastic force after the handle (31) is released by the user, the gear (32) is engaged with the handle (31) through a vertical tooth part (312), the ratchet wheel (36) only rotates one matching tooth during manual pressing and drives the position adjusting cam (37) to rotate with the gear (32) only during the handle (31) is moved upwards.
4. The mechanical delay switch device of claim 3, wherein: The delay switch mechanism (3) further comprises a control rod (38), the housing (1) is provided with a water inlet channel which accesses the water inlet (12) and a valve seat (15) which is located in the water inlet channel and has a central hole, the position adjusting cam (37) can make the control rod (38) away from or close to the valve seat (15) during rotation to open or close the central hole by using the concave-convex structure located on the surface.
5. The mechanical delay switch device of claim 4, wherein: The control rod (38) is provided with a sealing element which is arranged opposite to the central hole, and a sealing spring (39) is further arranged between the control rod (38) and the housing (1).
6. The mechanical delay switch device of claim 3, wherein: The water blocking mechanism (2) comprises a rotating shaft (21), a baffle (22) and a shaft body boss (23), the rotating shaft (21) is rotatably connected at the switching cavity (11), the baffle (22) is fixed on the rotating shaft (21) and can block the water outlet A (13) or the water outlet B (14) during rotation of the rotating shaft (21), the shaft body boss (23) is installed on the rotating shaft (21) and extends into a vertical slide channel, and the handle (31) is provided with a boss assembly which can make the rotating shaft (21) rotate by impacting the shaft body boss (23).
7. The mechanical delay switch device of claim 6, wherein: The boss assembly is composed of a movable boss (33) and a fixed boss (34) which are located on the left and right sides of the shaft body boss (23) respectively, and the handle (31) is provided with a boss cavity (311) which can accommodate the movable boss (33) during downward movement of the handle (31).
8. The mechanical delay switch device of claim 3, wherein: The utility model further comprises a damper (5) which is installed on the housing (1) and can reduce the upward reset speed of the handle (31).
9. A mechanical delay switch device as claimed in any one of claims 3 to 8, characterized in that: The housing (1) is further provided with a locking mechanism (6) capable of limiting the manual depression of the handle (31) during the upward resetting of the handle (31).
10. The mechanical delay switch device of claim 9, wherein: The locking mechanism (6) comprises a locking cam (61) and a retaining spring (62), the locking cam (61) is rotatably connected with the housing (1), and the retaining spring (62) is installed between the locking cam (61) and the housing (1), the locking cam (61) can both limit the downward movement of the handle (31) by interlocking with the hook portion (313) during the upward resetting of the handle (31) and automatically release the interlocking relationship with the hook portion (313) when the handle (31) is reset to the position.