Integrated timing safety valve with base

Abstract

The utility model relates to an integrated timing safety valve with a base. The integrated timing safety valve comprises a valve body, a piston rod, an overflowing assembly and a timing mechanism. The valve body comprises an air inlet end, an air outlet end and a valve cavity. The overflowing assembly is fixed in the air inlet end; the timing mechanism is movably mounted in the valve cavity; the piston rod is slidably arranged in the valve cavity, and a bidirectional reset table is fixed on the piston rod; when the timing mechanism is closed and the overflowing assembly cuts off the air inlet end, the timing mechanism is rotated clockwise or anticlockwise, and the bidirectional reset table pushes the overflowing assembly to keep the air inlet end open; when the timing mechanism is started and the overflowing assembly cuts off the air inlet end, the timing mechanism is rotated anticlockwise or clockwise, and the bidirectional reset table pushes the overflowing assembly to keep the air inlet end communicated.

Description

Technical Field

[0001] The utility model belongs to the field of pipeline valves, and particularly relates to an integrated timing safety valve with a base. Background Art

[0002] The application of pipeline transportation technology is extremely common in human society, among which pipeline gas is an indispensable energy source in people's daily life. However, in actual use, if the user fails to close the valve of the gas appliance or the valve in front of the stove in time, once the gas is supplied again, it may cause gas leakage, and then cause an explosion accident, which seriously threatens the safety of surrounding personnel and society. In Chinese patent CN102620042A, a timer for an instantaneous valve is disclosed, which can automatically close the timer safety valve of the valve when the time is reached by the user manually setting the time to prevent gas leakage.

[0003] Chinese patent CN217482058U introduces a gas timing safety valve, including: a valve body, a valve core assembly, a reset assembly, and a timer are arranged in the valve body; after eliminating the gas leakage, the reset cap is pressed, and the reset cap drives the reset column to move downward, hitting the umbrella piece to move to the left, at which time the umbrella piece and the flow seat are released from the seal, the valve operates normally, and the reset cap and the reset column move upward under the action of the reset spring and return to the original position. There are the following disadvantages:

[0004] 1. After the gas over-flow phenomenon occurs, the user must manually press to complete the over-flow reset, which causes inconvenience to the user;

[0005] 2. The timer and the valve body are an integrated structure. When the timer needs to be repaired or replaced, it cannot be disassembled, resulting in the safety valve being dismantled and scrapped as a whole, increasing the user's maintenance cost.

[0006] Therefore, it is necessary to provide an integrated timing safety valve with a base to solve the problems raised in the above background technology. Utility Model Content

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated timing safety valve with a base, comprising: a valve body, a piston rod, a flow-through component, and a timing mechanism;

[0008] The valve body comprises: an air inlet end, an air outlet end, and a valve cavity;

[0009] The flow component is fixed in the air inlet end; the flow component cuts off the air inlet end when the gas flows; the timing mechanism is movably installed in the valve cavity;

[0010] The piston rod is slidably disposed in the valve cavity, and a two-way reset platform is fixed on the piston rod, and the two-way reset platform includes an upper reset platform and a lower reset platform;

[0011] When the timing mechanism is closed and the flow component cuts off the air inlet end, that is, the lower reset platform is located on the upper part of the flow component, the timing mechanism is rotated clockwise or counterclockwise, and the lower reset platform pushes the flow component to keep the air inlet end conductive;

[0012] When the timing mechanism is turned on and the flow component cuts off the air inlet end, that is, the upper reset platform is located at the lower part of the flow component, the timing mechanism is rotated counterclockwise or clockwise or the timing of the timing mechanism ends, and the upper reset platform pushes the flow component to keep the air inlet end conductive.

[0013] As a further improvement of the utility model, when the flow component and the timing mechanism work normally, the gas usage time is controlled by rotating the timing mechanism; the timing mechanism controls the opening and closing state of the valve channel through the piston rod;

[0014] Rotating the timing mechanism clockwise or counterclockwise to start the timing mechanism pushes the piston rod down, and the valve path is open; rotating the timing mechanism counterclockwise or clockwise, the timing of the timing mechanism ends, the timing mechanism pulls the piston rod upward, and the valve path is closed.

[0015] As a further improvement of the utility model, the bidirectional reset platform includes an upper reset platform and a lower reset platform;

[0016] When the timing mechanism is closed and the flow component cuts off the air inlet, turn the timing mechanism clockwise or counterclockwise, and the lower reset table pushes the flow component to keep the air inlet open;

[0017] When the timing mechanism is turned on and the flow component cuts off the air inlet, the timing mechanism is rotated counterclockwise or clockwise, and the upper reset platform pushes the flow component to keep the air inlet open.

[0018] As a further improvement of the utility model, a waist-shaped guide hole, a guide seat, an R-shaped sealing surface of the valve port, and a reset spring are also provided in the valve cavity;

[0019] The R-shaped sealing surface of the valve port is fixed on the guide seat, and the valve channel is sealed when the R-shaped sealing surface of the valve port contacts the piston rod;

[0020] The piston rod is slidably arranged in the valve cavity through the waist-shaped guide hole and the guide seat. A reset spring is arranged between the piston rod and the guide seat. When the timing mechanism ends, the reset spring pushes the piston rod to cut off the valve path.

[0021] As a further improvement of the utility model, the flow component includes: a flow seat, an umbrella-shaped flow sheet, a flow spring, and a plug cap;

[0022] The flow seat is fixed at the air inlet end; the umbrella-shaped flow sheet is slidably arranged on the flow seat, and the umbrella-shaped flow sheet cuts off the air inlet end when the gas flows;

[0023] The umbrella-shaped current-passing sheet is also fixed with a blocking cap, and a current-passing spring is arranged between the blocking cap and the current-passing seat.

[0024] As a further improvement of the utility model, a clamping notch and a positioning groove are fixed on the top of the valve cavity, and a cover plate is clamped between the valve cavity and the timing mechanism through the positioning groove.

[0025] As a further improvement of the utility model, a disassembly opening, a positioning platform and a buckle are provided on the cover plate;

[0026] The buckle is connected to the slot to prevent the timing mechanism from falling out; the positioning table maintains the installation accuracy of the cover plate; and the disassembly port facilitates the disassembly of the timing mechanism.

[0027] As a further improvement of the utility model, the timing mechanism includes: a positioning plate, a timer, and a hand wheel;

[0028] The positioning plate is fixed on the timer, and the timer is clamped on the top of the valve cavity through the positioning plate and the positioning groove, which is easy to disassemble;

[0029] The hand wheel is installed coaxially on the timer. Turning the hand wheel clockwise or counterclockwise turns the timer on, and vice versa turns it off.

[0030] Compared with the prior art, the beneficial effects of the utility model are:

[0031] 1. A two-way reset platform is set on the piston rod. When the gas leakage causes the over-flow component to cut off the air inlet end, the over-flow component can be reset by rotating the timing mechanism. There is no need to set up a separate over-flow press reset mechanism, which improves the portability of user operation.

[0032] 2. The timer is installed on the valve body by snap-fitting through the slots and positioning grooves set on the positioning plate, cover plate and valve body. That is, when the timer needs to be repaired or replaced, the valve body and the timer can be quickly separated to reduce the user's maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of an integrated timing safety valve with a base;

[0034] Figure 2 It is a side sectional view of an integrated timed safety valve with a base;

[0035] Figure 3 It is a main cross-sectional view of an integrated timed safety valve with a base;

[0036] Figure 4 A three-dimensional view of a piston rod of an integrated timing safety valve with a base;

[0037] Figure 5 It is a cross-sectional view of a piston rod of an integrated timing safety valve with a base;

[0038] Figure 6 It is a cross-sectional view of an integrated timing safety valve flow assembly with a base;

[0039] Figure 7 A three-dimensional diagram of a valve body of an integrated timed safety valve with a base;

[0040] Figure 8 A three-dimensional diagram of an integrated timing safety valve hand wheel with a base;

[0041] Fig. 9 A three-dimensional diagram of an integrated timing safety valve cover with a base;

[0042] Fig.10 The schematic diagram of the installation of a timing mechanism of an integrated timing safety valve with a base is shown;

[0043] Fig.11 It is a diagram of an integrated timing safety valve with a base, with the timing mechanism closed and the flow component closed;

[0044] Fig.12 It is a diagram showing the timing mechanism of an integrated timing safety valve with a base being opened and the flow component being closed;

[0045] Fig.13 The diagram is a diagram of the timing mechanism of an integrated timing safety valve with a base being opened and the flow component being in the normal state.

[0046] Among them, 1. valve body; 2. timing mechanism; 24. cover plate; 241. disassembly port; 242. positioning platform; 243. buckle; 41. waist-shaped guide hole; 42. guide seat; 43. R-shaped sealing surface of valve port; 44. piston rod; 443. two-way reset platform; 443a. upper reset platform; 443b. lower reset platform; 45. reset spring; 6. overcurrent component; 61. overcurrent seat; 62. umbrella-shaped overcurrent sheet; 63. overcurrent spring; 64. plugging cap; 94. slot; 95. positioning slot; 10. handwheel. DETAILED DESCRIPTION

[0047] See also Figures 1 to 13 As shown, an integrated timing safety valve with a base is characterized by: a valve body 1, a piston rod 44, a flow component 6, and a timing mechanism 2;

[0048] The valve body 1 comprises: an air inlet end, an air outlet end, and a valve cavity;

[0049] The flow component 6 is fixed in the air inlet end; the flow component 6 cuts off the air inlet end when the gas flows; the timing mechanism 2 is movably installed in the valve cavity;

[0050] The piston rod 44 is slidably disposed in the valve cavity, and a two-way reset platform 443 is fixed on the piston rod 44. The two-way reset platform 443 includes an upper reset platform 443a and a lower reset platform 443b.

[0051] When the timing mechanism 2 is closed and the flow component 6 cuts off the air inlet end, that is, the lower reset platform 443b is located on the upper part of the flow component 6, the timing mechanism 2 is rotated clockwise or counterclockwise, and the lower reset platform 443b pushes the flow component 6 to keep the air inlet end conductive;

[0052] When the timing mechanism 2 is turned on and the flow component 6 cuts off the air inlet end, that is, the upper reset platform 443a is located at the lower part of the flow component 6, the timing mechanism 2 is rotated counterclockwise or clockwise or the timing of the timing mechanism 2 ends, and the upper reset platform 443a pushes the flow component 6 to keep the air inlet end conductive.

[0053] In this embodiment, preferably: when the flow component 6 and the timing mechanism 2 work normally, the gas usage time is controlled by rotating the timing mechanism 2; the timing mechanism 2 controls the valve opening and closing state through the piston rod 44;

[0054] Rotating the timing mechanism 2 clockwise or counterclockwise to start pushes the piston rod 44 down, and the valve path is open; rotating the timing mechanism 2 counterclockwise or clockwise, the timing of the timing mechanism 2 ends, the timing mechanism 2 pulls the piston rod 44 upward, and the valve path is closed.

[0055] Embodiment 1

[0056] The safety valve is installed on the gas pipeline and fixed by bolts. When the gas is needed, the timing mechanism 2 is rotated clockwise or counterclockwise (clockwise is used in this scheme) to the required time. The timing mechanism 2 pushes down the piston rod 44 to open the valve path, thereby allowing the gas to be opened for normal use of the gas equipment; when the timing of the timing mechanism 2 ends, the piston rod 44 slides up to cut off the valve path, thereby preventing gas leakage from the gas outlet.

[0057] Embodiment 2

[0058] When the timing mechanism 2 is working normally and the gas at the rear end of the safety valve leaks, the overflow component 6 cuts off the gas inlet end, thereby avoiding continuous overflow leakage of the gas and protecting the safety of gas use; after the leakage risk is eliminated, the timing mechanism 2 is manually rotated counterclockwise or clockwise (counterclockwise rotation is adopted in this scheme) or the piston rod 44 slides up after the timing of the timing mechanism 2 ends, and finally the overflow component 6 is pushed under the action of the upper reset platform 443a, thereby connecting the gas inlet end.

[0059] Embodiment 3

[0060] When the timing mechanism 2 is closed, that is, the piston rod 44 and the valve channel are closed but the seal is not tight, causing gas leakage at the rear end, the flow component 6 cuts off the seal of the air inlet end under the push of the gas, thereby avoiding the occurrence of gas leakage; when the leakage risk is eliminated, the timing mechanism 2 is manually rotated clockwise or counterclockwise (clockwise rotation is adopted in this scheme) to make the piston rod 44 slide down, and the flow component 6 is pushed under the action of the lower reset platform 443b, so that the air inlet end is conductive.

[0061] In summary, when the safety valve has a gas over-flow leakage phenomenon, the over-flow component 6 can be automatically reset through the two-way reset platform 443 in cooperation with the timing mechanism 2, without the need to set up a separate over-flow press reset mechanism, thereby simplifying the safety valve structure and improving the portability of operation.

[0062] In this embodiment, preferably: a waist-shaped guide hole 41, a guide seat 42, a valve port R-shaped sealing surface 43, and a return spring 45 are further provided in the valve cavity;

[0063] The valve port R-shaped sealing surface 43 is fixed on the guide seat 42, and the valve port R-shaped sealing surface 43 completes the sealing of the valve channel when it contacts the piston rod 44;

[0064] The piston rod 44 is slidably arranged in the valve cavity through the waist-shaped guide hole 41 and the guide seat 42. A return spring 45 is arranged between the piston rod 44 and the guide seat 42. When the timing mechanism 2 ends, the return spring 45 pushes the piston rod 44 to cut off the valve path.

[0065] When the timing mechanism 2 is working normally, the timing mechanism 2 pushes the piston rod 44 to slide down in the waist-shaped guide hole 41 and the guide seat 42, so that the piston rod 44 releases the cut-off seal on the valve channel, even if the air inlet end and the air outlet end are connected, and air supply is carried out; when the timing mechanism 2 ends the timing work, the timing mechanism 2 disengages from the piston rod 44, and the piston rod 44 slides up under the action of the return spring 45, and cuts off the seal on the valve channel with the R-shaped sealing surface 43 of the valve port, even if the air inlet end and the air outlet end are cut off, the air supply is stopped.

[0066] In this embodiment, preferably: the flow component 6 includes: a flow seat 61, an umbrella-shaped flow sheet 62, a flow spring 63, and a blocking cap 64;

[0067] The flow seat 61 is fixed at the air inlet end; the umbrella-shaped flow sheet 62 is slidably arranged on the flow seat 61, and the umbrella-shaped flow sheet 62 cuts off the air inlet end when the gas flows;

[0068] The umbrella-shaped current-passing plate 62 is also fixed with a blocking cap 64 , and a current-passing spring 63 is provided between the blocking cap 64 and the current-passing seat 61 .

[0069] When gas leakage occurs at the rear end of the safety valve, the umbrella-shaped flow plate 62 slides to the right under the push of the gas, and the air inlet end is cut off by the flow seat 61 to avoid continuous leakage of gas. After the gas leakage at the rear end is eliminated, the umbrella-shaped flow plate 62 is pushed back to normal by rotating the timing mechanism 2, that is, the air inlet end is connected.

[0070] When the timing mechanism 2 is timing normally, the timing mechanism 2 is rotated counterclockwise or clockwise or after the timing mechanism 2 ends timing, the upper reset platform 443a slides up and pushes the umbrella-shaped flow plate 62 to slide to the left, thereby restoring the umbrella-shaped flow plate 62 to normal, that is, the air intake end is turned on; when the timing mechanism 2 is not started, the timing mechanism 2 is rotated clockwise or counterclockwise to cause the lower reset platform 443b to push the umbrella-shaped flow plate 62 to slide to the left, thereby restoring the umbrella-shaped flow plate 62 to normal, that is, the air intake end is turned on.

[0071] In this embodiment, preferably: a clamping notch 94 and a positioning groove 95 are fixed on the top of the valve cavity, and a cover plate 24 is clamped between the valve cavity and the timing mechanism 2 through the positioning groove 95 .

[0072] In this embodiment, preferably: a disassembly opening 241, a positioning platform 242, and a buckle 243 are provided on the cover plate 24;

[0073] The buckle 243 is engaged with the slot 94 to prevent the timing mechanism 2 from falling out; the positioning platform 242 maintains the installation accuracy of the cover plate 24 to avoid the pointer sticker on the cover plate 24 and the timing mechanism from being misaligned and unable to be aligned; the disassembly port 241 facilitates the disassembly of the timing mechanism 2, and at the same time, the disassembly does not affect the overall air tightness of the valve. There is no need to return the valve to the factory for re-inspection, and only professional staff are required to disassemble and replace the valve.

[0074] In this embodiment, preferably: the timing mechanism 2 includes: a positioning plate, a timer, and a hand wheel 10;

[0075] The positioning plate is fixed on the timer, and the timer is clamped on the top of the valve cavity through the positioning plate and the positioning groove 95, which is convenient for disassembly;

[0076] The hand wheel 10 is coaxially mounted on the timer. The timer is turned on by rotating the hand wheel 10 clockwise or counterclockwise, and turned off by rotating the hand wheel 10 conversely.

[0077] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An integrated timed safety valve with a base, characterized in that: include: Valve body (1), piston rod (44), flow component (6), timing mechanism (2); The valve body (1) comprises: an air inlet end, an air outlet end, and a valve cavity; The flow component (6) is fixed in the air inlet end; the flow component (6) cuts off the air inlet end when the gas flows; the timing mechanism (2) is movably installed in the valve cavity; The piston rod (44) is slidably disposed in the valve cavity, and a two-way reset platform (443) is fixed on the piston rod (44), and the two-way reset platform (443) includes an upper reset platform (443a) and a lower reset platform (443b); When the timing mechanism (2) is closed and the flow component (6) cuts off the air inlet end, that is, the lower reset platform (443b) is located on the upper part of the flow component (6), the timing mechanism (2) is rotated clockwise or counterclockwise, and the lower reset platform (443b) pushes the flow component (6) to keep the air inlet end conductive; When the timing mechanism (2) is turned on and the flow component (6) cuts off the air inlet end, that is, the upper reset platform (443a) is located at the lower part of the flow component (6), the timing mechanism (2) is rotated counterclockwise or clockwise or the timing of the timing mechanism (2) ends, and the upper reset platform (443a) pushes the flow component (6) to keep the air inlet end conductive.

2. The one-piece timing safety valve with a base according to claim 1, characterized in that: When the flow-through component (6) and the timing mechanism (2) work normally, the duration of gas use is controlled by rotating the timing mechanism (2); the timing mechanism (2) controls the opening and closing state of the valve channel through the piston rod (44); The timing mechanism (2) is started by rotating clockwise or counterclockwise to push the piston rod (44) downward, and the valve path is opened; the timing mechanism (2) is turned counterclockwise or clockwise to end the timing of the timing mechanism (2), and the timing mechanism (2) pulls the piston rod (44) upward to close the valve path.

3. The one-piece timing safety valve with a base according to claim 1, characterized in that: A waist-shaped guide hole (41), a guide seat (42), a valve port R-shaped sealing surface (43), and a return spring (45) are also provided in the valve cavity; The valve port R-shaped sealing surface (43) is fixed on the guide seat (42), and the valve port R-shaped sealing surface (43) completes sealing of the valve channel when in contact with the piston rod (44); The piston rod (44) is slidably arranged in the valve cavity through the waist-shaped guide hole (41) and the guide seat (42), and a return spring (45) is arranged between the piston rod (44) and the guide seat (42). When the timing of the timing mechanism (2) ends, the return spring (45) pushes the piston rod (44) to cut off the valve path.

4. The one-piece timing safety valve with a base according to claim 3, characterized in that: The flow component (6) comprises: a flow seat (61), an umbrella-shaped flow sheet (62), a flow spring (63), and a blocking cap (64); The flow seat (61) is fixed to the air inlet end; the umbrella-shaped flow sheet (62) is slidably arranged on the flow seat (61), and the umbrella-shaped flow sheet (62) cuts off the air inlet end when the gas flows; The umbrella-shaped current-passing sheet (62) is also fixed with a blocking cap (64), and a current-passing spring (63) is arranged between the blocking cap (64) and the current-passing seat (61).

5. The one-piece timing safety valve with a base according to claim 1, characterized in that: A clamping notch (94) and a positioning groove (95) are fixed on the top of the valve cavity, and a cover plate (24) is clamped between the valve cavity and the timing mechanism (2) via the positioning groove (95).

6. The one-piece timing safety valve with a base according to claim 5, characterized in that: The cover plate (24) is provided with a disassembly opening (241), a positioning platform (242), and a buckle (243); The buckle (243) is engaged with the slot (94) to prevent the timing mechanism (2) from falling out; the positioning platform (242) maintains the installation accuracy of the cover plate (24); and the disassembly opening (241) facilitates the disassembly of the timing mechanism (2).

7. The integrated timing safety valve with a base according to claim 6, characterized in that: The timing mechanism (2) comprises: a positioning plate, a timer, and a hand wheel (10); The positioning plate is fixed on the timer, and the timer is clamped on the top of the valve cavity through the positioning plate and the positioning groove (95), so as to facilitate disassembly; The hand wheel (10) is coaxially mounted on the timer. The timer is turned on by rotating the hand wheel (10) clockwise or counterclockwise, and turned off by rotating the hand wheel (10) counterclockwise.

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