Through type gas stove mechanical timer

Abstract

The utility model discloses a through type gas stove mechanical timer which comprises a base, an energy storage mechanism, a timing knob, a lower box body, a timing mechanism, an upper box body and a fixed release mechanism, the base sleeves a valve assembly of the gas stove and is used for connecting the mechanical timer with the gas stove; an ignition valve rod of the gas stove is sleeved with the energy storage mechanism, and the energy storage mechanism is used for extinguishing the gas stove after timing is finished; the timing knob is arranged on the base and is used for adjusting the burning time of the gas stove; the lower box body is assembled in the timing knob and is used for mounting and positioning the timing mechanism; the timing mechanism is installed in the lower box body and used for achieving the timing function. The upper box body is mounted on the lower box body and is used for mounting and positioning the positioning and releasing mechanism; the releasing mechanism is installed on the upper box body and used for controlling the gas stove to be in a fire or flameout state. According to the utility model, the problems of high production cost, narrow application range and complex installation process in the prior art can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas -cooker technical field especially, and it is a kind of through heart formula gas -cooker mechanical timer. BACKGROUND

[0002] Gas stove, also known as stove, is a kind of kitchen appliance. The current commonly used gas stove type is through heart formula gas stove.

[0003] In order to facilitate timing or time control, a timer can be installed on the gas stove to enable the gas stove to have a timing function. The gas stove timer generally includes two types of electronic control and mechanical control. The mechanical control generally sets a mechanical timing knob beside the ignition knob. The mechanical timing knob is connected with the gas valve to control the opening and closing of the gas valve. However, this will cause the original ignition knob of the gas stove to have a new device side by side, and the structure of the gas stove panel is increased, which increases the coverage area and hinders the cleaning of the panel. The existing technology also improves the structure of the gas stove by placing the mechanical timer under the panel. The process is complex, and even a large modification of the gas stove and its production line is required to install the timer under the gas stove panel. Although the technology of the electric fan without hairspring timer is relatively mature in the market, due to the structure and use mode of the hairspring timer itself, it cannot be directly installed on the gas stove to realize the timing and extinguishing function.

[0004] Chinese patent CN119508533A provides a constant-on type delay timing switch valve and gas stove, relating to the technical field of gas stove components, including a mechanical delay timing device and a valve device. The mechanical delay timing device includes an elastic force storage mechanism, a gear transmission mechanism and an escapement mechanism. The elastic force storage mechanism is connected with the escapement mechanism through the gear transmission mechanism. The valve device includes a valve body mechanism and a valve core mechanism. The valve body mechanism is provided with two types of gas pipelines, i.e. straight-through pipe and side branch pipe. The valve core mechanism is rotatably arranged in the valve body mechanism and can open and close the internal flow passage of the valve body mechanism. The valve core mechanism is connected with the elastic force storage mechanism. The patent slowly releases the potential energy of the elastic force storage mechanism to realize the slow rotation of the valve core mechanism, thereby realizing the delay timing opening and closing of the internal flow passage of the valve body mechanism. Not only is the delay timing opening and closing effect remarkable, which can effectively reduce safety hazards and improve the safety and reliability of the gas stove, but also the mechanical delay timing structure has the advantages of strong environmental applicability, practicality, durability, convenient operation and easy maintenance.

[0005] The above-mentioned patent has the following defects: (1) In addition to the timer release component, the timer also requires a valve body, valve core, valve stem, inlet pipe and outlet pipe, resulting in higher production costs. (2) Since the gas stoves already manufactured have horizontal, inclined or vertical panels, and the angle between the internal pipes and the valve stem varies, the related pipes for adding the timer must also vary to match the original pipes, making the application range of a single timer relatively narrow. (3) For gas stoves already manufactured, when a timer needs to be added, the gas stove panel must be opened, the existing valve components removed, the timer installed, and the gas stove panel reinstalled, making the installation process relatively complicated. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a mechanical timer for a gas stove with a through-type design, so as to solve the problems of high production cost, narrow applicability and complicated installation process of the existing technology.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] The mechanical timer for the gas stove includes a base, an energy storage mechanism, a timer knob, a lower housing, a timer mechanism, an upper housing, and a release mechanism.

[0009] The base is fitted onto the valve assembly of the gas stove and is used to connect the mechanical timer to the gas stove.

[0010] The energy storage mechanism is mounted on the ignition valve stem of the gas stove and connected to the upper housing, and is used to turn off the gas stove after the timer expires.

[0011] The timer knob is mounted on the base and is used to adjust the ignition time of the gas stove.

[0012] The lower housing is assembled inside the timing knob and is used to install and position the timing mechanism.

[0013] The timing mechanism is installed in the lower housing and connected to the timing knob to realize the timing function;

[0014] The upper box is mounted on the lower box and connected to the base for positioning the release mechanism.

[0015] The timing mechanism is installed on the upper housing and connected to the timing mechanism to control the gas stove to be in the ignition or extinguishing state.

[0016] Preferably, the base comprises a first flange plate, the top surface of which is provided with a clamping head and a clamping column in the middle, the inner side of the clamping head and the clamping column is provided with a gear A, the clamping head and the clamping column are staggered and arranged in a ring shape; the clamping head and the clamping column are connected with the upper box body. In the connecting assembly composed of the clamping head and the clamping column, the clamping column is thicker, which can effectively prevent the timer from rotating clockwise or counterclockwise; the clamping head is thinner and elastic, which can bend and reset when assembling the upper box body, preventing the timer from being separated upward.

[0017] Preferably, the bottom of the first flange plate is provided with a threaded hole, which is connected with the valve assembly of the gas stove, for mounting the timer on the panel of the gas stove.

[0018] Preferably, the middle of the timing knob is provided with an assembly groove A, the bottom of the assembly groove A is provided with a gear hole A, the assembly groove A is assembled with the lower box body, and the gear hole A is engaged with the timing mechanism; the bottom of the timing knob is provided with a counterbore, which is assembled with the first flange plate. The timing mechanism is controlled by the timing knob, so as to adjust the burning time of the gas stove.

[0019] Preferably, the top of the lower box body is provided with an assembly groove B, the bottom of the assembly groove B is provided with a gear hole B, the assembly groove B is assembled with the timing mechanism; the bottom of the lower box body is provided with a shoulder, and the lower box body is assembled in the assembly groove A through the shoulder. The assembly groove B is assembled with the upper box body, and a plurality of rotating shafts and fixing columns are provided on the assembly groove B, which are used for mounting the timing mechanism. The gear hole B is not engaged with other components, but only allows the timing mechanism to pass through and engage with the timing knob. The lower box body is assembled in the timing knob, so that the structure of the entire timer is more compact. When using the timer, the contact area between the hand and the timing knob is larger, which is convenient for adjusting the timing time.

[0020] Preferably, the timing mechanism comprises a gear set, a timing spring, a lever and a timing pendulum; the gear set is assembled in the assembly groove B, the lower part of the gear set passes through the gear hole B and engages with the gear hole A, so that the timing knob can control the timing mechanism through the gear set.

[0021] The lever is assembled in the assembly groove B and is provided with a clamping and disengaging function between the gear set.

[0022] The timing pendulum is assembled in the assembly groove B; the timing pendulum is in close contact with the front end of the lever when the timing is over, and is separated from the lever before the timing is over to allow the timing mechanism to normally time; the timing pendulum clamps the gear set.

[0023] Preferably, the gear set comprises a first gear, a second gear and a transmission gear set, the assembly slot B is provided with a plurality of wheel swing shafts, the first gear, the second gear and the transmission gear set are all installed on the wheel swing shafts; the first gear comprises upper and lower gear teeth, the lower gear teeth are engaged with the gear hole A, the upper gear teeth are provided with a triangular gap above, and the top surface of the lower gear teeth is provided with a clockwork clamp; the lever is arranged above the upper gear teeth; the timing clockwork is installed on the first gear between the upper and lower gear teeth; the gear teeth of the upper gear teeth are provided with a timing anti-clockwork dislocation toothless area; the second gear comprises a small wheel and a large wheel, the top of the small wheel is provided with a ratchet, the bottom of the large wheel is provided with a ratchet wheel A, the ratchet is engaged with the ratchet wheel A, and the small wheel is engaged with the upper gear teeth.

[0024] The clamping and disengaging function is realized in the following way: the assembly slot B is provided with a lever shaft, the rear end of the lever body is provided with a sleeve ring, the sleeve ring is sleeved on the lever shaft, the middle left side of the lever is provided with a triangular head, the triangular head is clamped in the triangular gap after timing is completed, and the triangular head is separated from the triangular gap during timing; the timing clockwork is installed on the gear set, the assembly slot B is provided with a clockwork fixing column for fixing the timing clockwork, one end of the timing clockwork is connected with the clockwork fixing column, the gear set is provided with a clockwork clamp for clamping the timing clockwork, and the other end of the timing clockwork is connected with the clockwork clamp; the gear set drives the clockwork clamp to loosen or wind the timing clockwork.

[0025] Preferably, the timing mechanism further comprises a ratchet wheel B, the ratchet wheel B is installed on the shaft and engaged with the transmission gear set; the timing pendulum is provided with a plurality of small columns for clamping the ratchet wheel B.

[0026] Preferably, the upper box body comprises a second flange plate and a connecting shell, the bottom of the second flange plate is provided with gear B, a bayonet and a spring fixing hole, the gear B is engaged with the gear A, the bayonet is connected with the clamp head, and the timer can be easily installed on the gas stove by adjusting the direction of the timer and pressing it with force; the connecting shell is connected with the release mechanism; and the spring fixing hole is connected with the energy storage mechanism. The upper box body is a structure connecting the upper and lower parts, which is connected with the release mechanism upward, and connected with the base, the energy storage mechanism and the lower box body downward.

[0027] Preferably, the middle part of the connecting shell is provided with a vertical through hole, which is communicated with the middle part of the second flange plate; the front and rear end faces of the connecting shell are respectively provided with mounting slots, upper and lower sides of the mounting slots are provided with transverse upper and lower sliding grooves communicated with the mounting slots; the right side bottom of the connecting shell is provided with a lever hole.

[0028] Preferably, the right side face of the connecting shell is provided with a spring hole.

[0029] Preferably, the timing mechanism comprises a timing lever, a lower sliding rod and an upper sliding rod, a linkage mechanism is arranged between the upper sliding rod and the lower sliding rod, and the linkage mechanism is mounted in the mounting slot; the upper sliding rod and the lower sliding rod are movably connected in the upper sliding groove and the lower sliding groove respectively; the right side of the upper sliding rod and the left side of the lower sliding rod are provided with pressing assemblies; the timing lever is movably arranged in the lever hole, the upper end of the timing lever is connected with the right end of the lower sliding rod, and the lower end of the timing lever extends downward through the lever hole and is connected with the timing mechanism.

[0030] Preferably, the timing mechanism further comprises an auxiliary spring, the right end of the auxiliary spring is connected with the inner side of the right side short edge of the lower sliding rod, and the left end of the auxiliary spring is connected with the connecting shell through the spring hole; the auxiliary spring can store energy by compression, and after the timing ends, the auxiliary spring pushes the upper sliding rod and the lower sliding rod to move and releases the ignition knob.

[0031] Preferably, the linkage mechanism comprises a rack A, a rack B and a linkage gear, the rack A is arranged at the bottom of the upper sliding rod, the rack B is arranged at the top of the lower sliding rod and corresponds to the rack A, the rack A and the rack B are connected through the linkage gear, and the linkage gear is mounted in the mounting slot; through the linkage connection, when the gas stove is in the fire state, the pressing head at the right end of the upper sliding rod and the pressing head at the left end of the lower sliding rod simultaneously generate reverse forces on the ignition knob, and the ignition knob, the valve rod and the valve core are balanced in force, and are not abnormally worn.

[0032] Preferably, the energy storage mechanism comprises a return spring, the top end of the return spring is provided with a snap ring to sleeve the ignition valve rod of the gas stove, and the bottom end of the return spring is provided with a bend to be fixed in the spring fixing hole, that is, connected with the upper box body; after the timing of the timing mechanism ends, the return spring twists the ignition knob and the ignition valve rod to the off position, and realizes the timing off function.

[0033] The beneficial effects of the utility model are as follows:

[0034] This invention integrates the timer into the existing ignition valve stem of the gas stove, eliminating the need to replace the valve assembly and reducing production costs. It is installed in the existing ignition knob position of the gas stove, unaffected by the structural dimensions of the internal valve assembly, thus offering wide applicability. Installation is simple and efficient; the gas stove panel and existing valve assembly do not need to be disassembled. Each component is installed onto the base step-by-step using a press-fit method, resulting in a relatively simple installation process. This invention also reduces the space required on the gas stove panel, improving the compactness of the integration and facilitating cleaning of the gas stove panel. Attached Figure Description

[0035] One or more embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings, in which:

[0036] Figure 1 This is a perspective sectional view of the mechanical timer of the through-type gas stove in an embodiment of the present invention, mounted on the gas stove panel.

[0037] Figure 2 This is a perspective view of the base according to an embodiment of the present utility model;

[0038] Figure 3 for Figure 2 A three-dimensional sectional view in a certain state;

[0039] Figure 4 This is a perspective view of the energy storage mechanism according to an embodiment of the present utility model;

[0040] Figure 5 This is a perspective sectional view of the timing knob in an embodiment of the present utility model;

[0041] Figure 6 This is a perspective view of the lower box body according to an embodiment of the present utility model;

[0042] Figure 7 for Figure 6 A three-dimensional sectional view in a certain state;

[0043] Figure 8 This is a perspective view of the timing mechanism according to an embodiment of the present utility model;

[0044] Figure 9 for Figure 8 A 3D representation of the first gear in the image;

[0045] Figure 10 for Figure 8 Exploded view of the second gear in the image;

[0046] Figure 11 for Figure 10 An exploded view of the second gear from another perspective;

[0047] Figure 12 It is the three-dimensional display drawing of the upper box body of the embodiment of the utility model;

[0048] Figure 13 It is Figure 12 The three-dimensional sectional view in the state;

[0049] Figure 14 It is the three-dimensional display drawing of the timing knob, the lower box body and the timing mechanism of the embodiment of the utility model;

[0050] Figure 15 It is Figure 14 The three-dimensional display drawing of the linkage gear in it;

[0051] Figure 16 It is the three-dimensional assembly sectional view of the base, the reset spring and the ignition valve rod of the embodiment of the utility model;

[0052] Figure 17 It is the three-dimensional assembly sectional view of the timing knob, the lower box body and the timing mechanism of the embodiment of the utility model;

[0053] Figure 18 It is the three-dimensional assembly schematic view of the timing mechanism and the timing mechanism of the embodiment of the utility model;

[0054] Figure 19 It is the three-dimensional assembly schematic view of the base, the upper box body and the timing mechanism of the embodiment of the utility model.

[0055] The figure mark is:

[0056] 100-base;101-first flange plate;10101-assistant installation hole;10102-threaded hole;102-clamp;103-clamp column;104-tooth A;

[0057] 200-energy storage mechanism;201- elbow;202-clamp ring;203-reset spring;

[0058] 300-timing knob;301-tooth hole A;302-counterbore;303-assembly groove A;

[0059] 400-lower box body;401-fixed screw position;402-pull rod pivot;403-wheel swing pivot;404-spring fixed column;405-tooth hole B;406-shoulder;

[0060] 500 - timing mechanism; 501 - first gear; 50101 - triangular notch; 50102 - spring clamp; 50103 - lower teeth; 50104 - upper teeth; 50105 - toothless area; 502 - timing spring; 503 - lever; 50301 - triangular head; 50302 - collar; 504 - timing pendulum; 50401 - small post; 505 - transmission gear set; 506 - second gear; 50601 - small wheel; 50602 - large wheel; 50603 - ratchet gear B; 50604 - ratchet teeth; 507 - ratchet gear A;

[0061] 600 - upper box body; 601 - second flange plate; 602 - tooth B; 603 - fixing hole; 604 - lever hole position; 605 - lower slide groove; 606 - upper slide groove; 607 - connecting housing; 608 - mounting slot; 609 - through hole; 610 - spring hole position; 611 - bayonet; 612 - spring fixing hole; 613 - gear shaft hole; 614 - lever shaft hole;

[0062] 700 - timing release mechanism; 701 - timing release lever; 70101 - lever pivot; 702 - lower slide rod; 70201 - rack B; 703 - upper slide rod; 70301 - rack A; 704 - auxiliary spring; 705 - linkage gear; 70501 - gear clamp; 70502 - gear pivot; 706 - compression spring; 707 - compression head; 708 - connecting block;

[0063] 800 - ignition valve rod;

[0064] 900 - panel;

[0065] 1000 - ignition knob;

[0066] 1100 - valve assembly. DETAILED DESCRIPTION

[0067] The utility model will be described in detail below with reference to the exemplary embodiments in the drawings. But it should be known that the utility model can be realized through various different forms, and should not be understood as being limited to the embodiments set forth herein. The embodiments are provided to make the disclosure of the utility model more complete, and to fully convey the concept of the utility model to those skilled in the art.

[0068] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the protection scope of the utility model.

[0069] In at least one embodiment, the mechanical timer of the gas stove of the utility model comprises a base 100, an energy storage mechanism 200, a timing knob 300, a lower box body 400, a timing mechanism 500, an upper box body 600 and a release mechanism 700. Figure 1 As shown in the drawings, the base 100 is sleeved on the valve assembly 1100 of the gas stove, and is used for mounting the mechanical timer on the panel 900 of the gas stove.

[0070] The base 100 is sleeved on the valve assembly 1100 of the gas stove, and is used for mounting the mechanical timer on the panel 900 of the gas stove. Figure 2 and Figure 3 The first flange plate 101 is provided with a neck portion downward, and a threaded hole 10102 is arranged at the bottom of the neck portion, and the threaded hole 10102 is connected with the valve assembly 1100.

[0071] The energy storage mechanism 200 is sleeved on the ignition valve rod 800 of the gas stove, and is used for extinguishing the gas stove after timing. Figure 4 As shown in the drawings, the energy storage mechanism 200 comprises a reset spring 203, the inner diameter shape of the reset spring 203 is matched with the shape of the rod body of the ignition valve rod 800, a clasp ring 202 is arranged at the top end of the reset spring 203 to be sleeved on the ignition valve rod 800 of the gas stove, and a bend 201 is arranged at the bottom end of the reset spring 203 to be fixed in the spring fixing hole 612.

[0072] The timing knob 300 is used for adjusting the time of the gas stove, and the structure thereof is as shown in the drawings. Figure 5As shown, the middle part of the timing knob 300 is provided with an assembly groove A303, the bottom of the assembly groove A303 is provided with a gear hole A301, the assembly groove A303 is assembled with the lower box body 400, and the gear hole A301 is engaged with the timing mechanism 500; the bottom of the timing knob 300 is provided with a counterbore 302, the counterbore 302 is assembled with the first flange plate 101, and the timing knob 300 can rotate left and right.

[0073] The lower box body 400 is used for mounting and positioning the timing mechanism 500, and the structure thereof is as shown in the figure Figures 6-7 As shown, the top of the lower box body 400 is provided with an assembly groove B401, the bottom of the assembly groove B401 is provided with a gear hole B405, the assembly groove B401 is provided with a plurality of wheel swing shafts 403 and a lever shaft 402, a spring fixing column 404; the bottom outer side of the lower box body 400 is provided with a shoulder 406, and the lower box body 400 is assembled in the assembly groove A303 of the timing knob 300 through the shoulder 406. In addition, the top surface of the lower box body 400 is provided with a fixed screw position 407 in the circumferential direction.

[0074] The timing mechanism 500 is assembled in the lower box body 400, and is used for realizing the timing function, and the structure thereof is as shown in the figure Figures 8-11As shown, it comprises a first gear 501, a timing spring 502, a push lever 503, a timing pendulum 504, a transmission gear set 505, a second gear 506 and a ratchet gear A 507; the second gear 506, the transmission gear set 505, the timing pendulum 504 and the ratchet gear A 507 are all installed on the wheel pendulum shaft 403 in the assembly groove B 401 of the lower box body 400; the first gear 501 comprises an upper gear tooth 50104 and a lower gear tooth 50103, the lower gear tooth 50103 is engaged with the gear tooth hole A 301 of the timing knob 300, a triangular notch 50101 is formed on the top of the first gear 501, and a spring clamp 50102 is arranged on the top surface of the lower gear tooth 50103; the timing spring 502 is installed between the upper gear tooth 50104 and the lower gear tooth 50103, a toothless area 50105 is arranged on the upper gear tooth 50104, the side surface at this position is a smooth surface, so as to prevent the first gear 501 from rotating counterclockwise too much and causing the timing spring 502 to dislocate, one end of the timing spring 502 is fixed on the spring fixing column 404, and the other end is wound on the first gear 501 and clamped on the spring clamp 50102; the second gear comprises a small gear 50601 and a large gear 50602, the top of the small gear 50601 is provided with a ratchet 50604, the bottom of the large gear 50602 is provided with a ratchet gear B 50603, the ratchet gear B 50603 is engaged with the ratchet 50604, and the small gear 50601 is engaged with the upper gear tooth 50104. The timing pendulum 504 is separated from the push lever 503 before the timing is completed, so as to allow the timing mechanism to normally time, and is tightly attached to the front end of the push lever 503 when the timing is completed; a plurality of small columns 50401 are arranged on the timing pendulum 504, and are used for clamping the ratchet gear A 507. The functions of the ratchet 50604 and the ratchet gear B 50603 are as follows: because the timing pendulum 504 has a clamping effect on the ratchet gear A 507, when the timing knob 300 is rotated clockwise, the timing pendulum 504 clamps the ratchet gear A 507, so that it cannot rotate, at this time, only the first gear 501 and the small gear 50601 can rotate, without affecting the timing adjustment of the timing knob 300; when the timing knob 300 is loosened, the first gear 501 and the second gear 506 are prevented from slipping during the process that the timing spring 502 restores the original shape. The connection mode between the first gear 501 and the ratchet gear A 507 is that the large gear engages with the small gear, the first gear 501 and the timing spring 502 rotate at a small angle, the second gear 506 and the transmission gear set 505 have a multi-stage amplification effect on the rotation of the first gear 501, the ratchet gear A 507 is driven to rotate at a large angle, the timing pendulum 504 controls the timing mechanism 500 to operate at a set speed, and the timing function is realized. The principle and technology that the timing pendulum 504 controls the timing mechanism 500 to operate are mature and open, and are not included in the claim clause of the utility model, and the specific implementation process and technology are not described herein.The dial lever 503 is an arc-shaped lever body, which is arranged above the upper wheel tooth 50104 in the transverse direction. The rear end of the lever body is provided with a sleeve ring 50302, which is sleeved on the dial lever rotating shaft 402. The middle left side of the dial lever 503 is provided with a triangular head 50301, which is clamped in the triangular notch 50101 after timing is completed, and is separated from the triangular notch 50101 during timing.

[0075] The wheel tooth hole A301 of the timing knob 300 is engaged with the first gear lower wheel tooth 50103, and the upper wheel tooth 50104 of the first gear 501 is engaged with the small gear 50601 of the second gear 506. When the timing knob 300 rotates, the first gear 501 and the second gear 506 are driven to rotate, so as to adjust the timing length.

[0076] The upper box body 600 is mounted on the lower box body 400, and the lower part is connected with the base 100, and the upper part is connected with the timing release mechanism 700, which is used for positioning the timing release mechanism 700. The structure is as shown in Figures 12-13 The bottom of the second flange plate 601 is provided with a wheel tooth B602 engaged with the wheel tooth A104, a clamping hole 611 clamped with the clamping head 102, and a spring fixing hole 612 connected with the energy storage mechanism 200. The middle part of the connecting shell 607 is provided with a through hole 609, which is in communication with the middle part of the second flange plate 601. The front and rear end faces of the connecting shell 607 are respectively provided with gear shaft holes 613 in communication with the through hole 609. The gear shaft holes 613 are provided with mounting grooves 608. The upper and lower parts of the mounting grooves 608 are respectively provided with upper and lower transverse sliding grooves 606 and 605 in communication with the mounting grooves 608. The right side of the connecting shell 607 is provided with a spring hole 610, and the right side of the second flange plate 601 is provided with a lever hole 604. In addition, the flange surface of the second flange plate 601 is also provided with a fixing hole 603, which is coaxially distributed with the fixing screw hole 407 and is screwed into the screw for fixed connection.

[0077] The base 100 is screwed, so that the base 100 tightly clamps the panel 900 with the valve assembly 1100, so as to fix the valve assembly and the base 100 on the panel 900. The clamping head 102 on the upper part of the base 100 is clamped with the clamping hole 611 of the upper box body 600, and the wheel tooth A104 on the clamping head 102 and the clamping column 103 is engaged with the wheel tooth B602 of the upper box body 600, so that the whole timer is tightly fixed on the base 100, and displacement and rotation are avoided.

[0078] The "timing release" of the timing release mechanism 700 is explained as having the functions of "fixing or releasing". The timing release mechanism is installed on the upper box body 600, which is used for controlling the gas stove to be in the fire or off state. The structure is as shown in Figures 14-15As shown, the constant release mechanism 700 comprises a constant release lever 701, an upper slide rod 703 of U-shaped structure, a lower slide rod 702 of rectangular structure, the bottom of the two long edges of the upper slide rod 703 is provided with a rack A 70301, the top of the two long edges of the lower slide rod 702 is provided with a rack B 70201 corresponding to the rack A 70301, the rack A 70301 and the rack B 70201 are connected through a linkage gear 705, the linkage gear 705 is installed in the installation slot 608, the linkage gear 705 extends into the gear shaft hole 613 through a gear rotating shaft 70502, so that the linkage gear 705 can rotate in the installation slot 608, and a gear clamp 70501 is used to prevent the linkage gear from falling out; the upper slide rod 703 and the lower slide rod 702 are respectively movably clamped in the upper slide groove 606 and the lower slide groove 605, and can slide in the upper slide groove 606 and the lower slide groove 605 respectively; the right side of the upper slide rod 703 and the left side of the lower slide rod 702 are both provided with a pressing assembly; the pressing assembly comprises a pressing spring 706, a pressing head 707 and a connecting block 708, the connecting block 708 is respectively arranged on the right side of the upper slide rod 703 and the left side of the lower slide rod 702, one end of the pressing spring 706 is fixedly connected with the connecting block 708, the other end is sleeved on a connecting rod of the pressing head 707 and connected with the pressing head 707, wherein the length of the pressing spring 706 is less than the length of the connecting rod of the pressing head 707, so as to ensure that the pressing spring 706 can be extended and retracted, and the pressing head 707 is not easily detached. The constant release lever 701 is movably arranged in the lever hole 604, the top of the constant release lever 701 is in contact with the right end surface of the lower slide rod 702, and the middle part of the constant release lever 701 is bent. The lever rotating shaft 70101 of the front and rear ends of the constant release lever 701 is respectively connected with the lever shaft hole 614 of the lever hole 604, so that the constant release lever 701 can rotate. The inner side of the right short edge of the lower slide rod 702 is fixedly connected with a transversely arranged auxiliary spring 704, and the left end of the auxiliary spring 704 is fixedly connected with the connecting shell 607 through the spring hole 610.

[0079] The two linkage gears 705 link the upper slide rod 703 and the lower slide rod 702, when the constant release lever 701 pushes the lower slide rod 702 to move left, the linkage gear 705 drives the upper slide rod 703 to move right, the two pressing heads 707 press the ignition knob 1000 of the gas stove outward, and the ignition knob 1000 is fixed; when the constant release lever 701 releases the lower slide rod 702, the auxiliary spring 704 pushes the lower slide rod 702 to the right, the linkage gear 705 drives the upper slide rod 703 to move left, and the pressing head 707 releases the ignition knob 1000 of the gas stove, and the reset spring 203 drives the ignition valve rod 800 and the ignition knob 1000 of the gas stove to rotate to the off position.

[0080] When the timing knob 300 is rotated clockwise, the first gear 501 rotates, the timing spring 502 is deformed to store energy, the triangular notch 50101 rotates away from the triangular head 50301, the lever 503 pushes the release lever 701 to rotate, thereby pushing the lower slide rod 702 to the left, the upper slide rod 703 is driven by the linkage gear to move to the right, the upper and lower compression heads 707 compress the ignition knob 1000, the ignition knob 1000 remains stationary, and the gas stove remains in the fire state. After the timing knob 300 is released, the timing spring 502 returns to its original shape, driving the first gear 501, the second gear 506, the ratchet gear A 507 and the transmission gear set 505 to rotate, but under the control of the timing pendulum 504, the entire timing mechanism 500 remains relatively stable and slowly runs at a slow speed. When the triangular notch 50101 rotates to the initial position, the triangular head 50301 is trapped in the triangular notch 50101, the lever 503 releases the release lever 701, the compression head 707 releases the ignition knob 1000, and the reset spring 203 drives the ignition valve rod 800 and the ignition knob 1000 to the off position, realizing the timing off function.

[0081] The installation process of the timer of the embodiment is as follows:

[0082] I. User installation

[0083] 1. Install the base 100.

[0084] (1) As shown in Figure 16 , first remove the ignition knob 1000 and the nut of the fixed valve assembly 1100 owned by the gas stove.

[0085] (2) Replace the original nut with the base 100, and set the base 100 on the valve assembly 1100 through the base threaded hole 10102. Tighten the base 100 with a pair of needle-nose pliers or other force tools, and make the flange face of the first flange plate 101 clamped with the valve assembly 1100.

[0086] 2. Press the other components (excluding the base) already assembled by the manufacturer onto the base 100. The upper box body 600 is engaged and clamped with the base 100.

[0087] 3. Install the energy storage mechanism 200. Set the energy storage mechanism 200 on the ignition valve rod 800, and adjust the bend 201 of the energy storage mechanism 200 to a spring fixing hole 612 with a pair of tweezers clockwise.

[0088] 4. Install the ignition knob 1000. The effect is shown in Figure 1 .

[0089] II. Other components assembled in the factory

[0090] As shown in Figures 17-19As shown, the lower box body 400 is assembled with the timing knob 300, the timing mechanism 500 is installed into the lower box body 400, one end of the timing spring 502 is fixed on the spring fixing column 404, the other end is wound around the first gear 501 and then fixed on the spring clip 50102, the lower gear teeth 50103 are engaged with the timing knob 300, and the triangular head 50301 is clamped on the triangular notch 50101. The timing release mechanism 700 is installed on the upper box body 600, the upper slide rod 703 and the lower slide rod 702 are flexibly linked under the connection of the linkage gear 705, and the timing release lever 701 can be flexibly swung. After the timing release mechanism 700 and the upper box body 600 are installed on the lower box body 400 by screws, the lower end of the timing release lever 701 is in contact with the triangular head 50301.

[0091] The working process of the timer of the embodiment is as follows:

[0092] I. Timing working process

[0093] Step one, press down and rotate the ignition knob 1000, ignite the gas stove, and adjust the fire size;

[0094] Step two, rotate the timing knob 300 clockwise to the appropriate timing position, the first gear 501 rotates clockwise, driving the small wheel 50601 of the second gear 506 to rotate counterclockwise, because the ratchet gear A 507 hooks the small column 50401 on the timing pendulum 504 and cannot rotate, the ratchet 50604 on the small wheel 50601 slips with the ratchet gear B 50603 on the large wheel 50602, the first gear 501 rotates smoothly, the triangular head 50301 is pushed away to the right by the top of the first gear 501, the end of the lever 503 releases the timing pendulum 504, the lower end of the timing release lever 701 is pushed away to the right by the triangular head 50301, the upper end of the timing release lever 701 pushes the lower slide rod 702 to the left, the auxiliary spring 704 is compressed and stored, the linkage gear 705 drives the upper slide rod 703 to move to the right, and the ignition knob 1000 remains stationary under the compression force of the two sets of compression heads 707. Among them, the compression spring 706 plays a compression and buffering role.

[0095] Step three, the hand leaves the timing knob 300, the timing knob 300 is released, and the ignition knob 1000 at this time is still in the compressed state, and the ignition knob 1000 and the ignition valve rod 800 cannot rotate under the action of the reset spring 203.

[0096] Step four, after the timing knob 300 is loosened, the timing spring 502 returns to its original state, driving the first gear 501, the second gear 506, the transmission gear set 505, the ratchet gear A 507 to rotate, the timing pendulum 504 controls the slow rotation of the timing mechanism 500, and the triangular notch 50101 slowly rotates to the initial position. The principle and technology of the timing pendulum 504 controlling the operation of the timing mechanism 500 are mature and disclosed, and are not included in the claim clause of the utility model, so the specific implementation process and technology will not be described here.

[0097] Step five, when the time reaches the set value, the triangular notch 50101 rotates to the initial position, the auxiliary spring 704 pushes the lower slide rod 702 to move to the right, the upper end of the timing release lever 701 swings to the right, the lower end of the timing release lever 701 swings to the left and pushes the triangular head 50301 to sink into the triangular notch 50101, the linkage gear 705 drives the upper slide rod 703 to move to the left, the two sets of compression heads 707 loosen the ignition knob 1000, and the reset spring 203 turns the ignition valve rod 800 and the ignition knob 1000 to the initial position, i.e. the off position, to realize the timing off function.

[0098] Step six, when the time does not reach the set value, rotating the timing knob 300 can adjust the set time again.

[0099] II. Non-timing working process:

[0100] When the timing knob 300 is in the initial position, the gas stove is ignited, and after the timing knob 300 is counterclockwise rotated by a small angle, the toothless area 50105 rotates to the small wheel 50601, because the toothless area 50105 is toothless and has no groove and is stuck, the timing knob 300 no longer rotates, the triangular head 50301 is pushed open to the right, the end of the lever 503 releases the timing pendulum 504, the lower end of the timing release lever 701 is pushed open to the right, the upper end of the timing release lever 701 pushes the lower slide rod 702 to the left, the auxiliary spring 704 is compressed and stored, the linkage gear 705 drives the upper slide rod 703 to move to the right, and the compression head 707 keeps the ignition knob 1000 compressed, so the gas stove is always in the fire state.

[0101] The above is a further detailed description of the utility model in combination with specific / preferred embodiments, and cannot be regarded as limiting the specific implementation of the utility model to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can make a number of substitutions or modifications to the described embodiments, and these substitution or modification methods should be regarded as belonging to the protection scope of the utility model.

Claims

1. A mechanical timer for a gas hob, characterized in that: It comprises a base (100), an energy storage mechanism (200), a timing knob (300), a lower box body (400), a timing mechanism (500), an upper box body (600) and a release mechanism (700); The base (100) is sleeved on the valve assembly (1100) of the gas stove, and is used for connecting the mechanical timer with the gas stove; The energy storage mechanism (200) is sleeved on the ignition valve rod (800) of the gas stove and is connected with the upper box body (600), and is used for making the gas stove extinguish after timing ends; The timing knob (300) is installed on the base (100), and is used for adjusting the time of the gas stove; The lower box body (400) is assembled in the timing knob (300), and is used for installing and positioning the timing mechanism (500); The timing mechanism (500) is installed in the lower box body (400) and is connected with the timing knob (300), and is used for realizing the timing function; The upper box body (600) is installed on the lower box body (400) and is connected with the base (100), and is used for installing and positioning the release mechanism (700); The release mechanism (700) is installed on the upper box body (600) and is connected with the timing mechanism (500), and is used for controlling the gas stove to be in the state of ignition or extinguishment.

2. The mechanical timer for gas hob according to claim 1, characterized in that: The base (100) comprises a first flange plate (101), the top surface of the first flange plate (101) is provided with a clamping head (102) and a clamping column (103) in the middle, the inner side of the clamping head (102) and the clamping column (103) is provided with a gear A (104), the clamping head (102) and the clamping column (103) are arranged alternately and distributed in a ring shape, and the clamping head (102) and the clamping column (103) are connected with the upper box body (600).

3. The mechanical timer for gas hob according to claim 2, characterized in that: The middle part of the timing knob (300) is provided with an assembly groove A (303), the bottom of the assembly groove A (303) is provided with a gear hole A (301), the assembly groove A (303) is assembled with the lower box body (400), and the gear hole A (301) is engaged with the timing mechanism (500); the bottom of the timing knob (300) is provided with a counterbore (302), and the counterbore (302) is assembled with the first flange plate (101).

4. The mechanical timer for gas hob according to claim 3, characterized in that: The top of the lower box body (400) is provided with an assembly groove B (401), the bottom of the assembly groove B (401) is provided with a gear hole B (405), and the assembly groove B (401) is assembled with the timing mechanism (500); the bottom outer side of the lower box body (400) is provided with a shoulder (406), and the lower box body (400) is assembled in the assembly groove A (303) through the shoulder (406).

5. The mechanical timer for gas hob according to claim 4, characterized in that: The timing mechanism (500) comprises a gear set, a timing spring (502), a lever (503) and a timing pendulum (504); the gear set is assembled in the assembly groove B (401), and the lower part of the gear set passes through the gear hole B (405) to engage with the gear hole A (301); The lever (503) is assembled in the assembly groove B (401), and the engagement and disengagement function is provided between the lever (503) and the gear set; the timing spring (502) is installed on the gear set, one end of the timing spring (502) is connected with the assembly groove B (401), and the other end of the timing spring (502) is connected with the gear set; The timing pendulum (504) is assembled in the assembly groove B (401); the timing pendulum (504) is close to the front end of the lever (503) at the end of timing, and is separated from the lever (503) before the end of timing; the timing pendulum (504) clamps the gear set.

6. The mechanical timer for gas hob according to claim 2, characterized in that: The upper box body (600) comprises a second flange plate (601) and a connecting shell (607); the bottom of the second flange plate (601) is provided with a gear B (602), a bayonet (611) and a spring fixing hole (612); the gear B (602) engages with the gear A (104), and the bayonet (611) is connected with the clamping head (102); the connecting shell (607) is connected with the release mechanism (700); the spring fixing hole (612) is connected with the energy storage mechanism (200).

7. The mechanical timer for gas hob according to claim 6, characterized in that: The middle part of the connecting shell (607) is provided with a vertical through hole (609) which is communicated with the middle part of the second flange plate (601); the front and rear end faces of the connecting shell (607) are respectively provided with mounting groove positions (608); the upper and lower parts of the mounting groove positions (608) are respectively provided with transverse upper and lower sliding grooves (606) and (605) which are communicated with the mounting groove positions (608); the right bottom of the second flange plate (601) of the connecting shell (607) is provided with a lever hole position (604).

8. The mechanical timer for gas hob according to claim 7, characterized in that: The release mechanism (700) comprises a release lever (701), a lower sliding rod (702) and an upper sliding rod (703); the upper sliding rod (703) and the lower sliding rod (702) are provided with a linkage mechanism; the linkage mechanism is installed in the mounting groove position (608); the upper sliding rod (703) and the lower sliding rod (702) are respectively movably connected in the upper sliding groove (606) and the lower sliding groove (605); the right side of the upper sliding rod (703) and the left side of the lower sliding rod (702) are respectively provided with a pressing assembly; the release lever (701) is movably arranged in the lever hole position (604), the upper end of the release lever (701) is connected with the right end of the lower sliding rod (702), and the lower end of the release lever (701) extends downward through the lever hole position (604) and is connected with the timing mechanism (500).

9. The mechanical timer for gas hob according to claim 8, characterized in that: The linkage mechanism comprises a rack A (70301), a rack B (70201) and a linkage gear (705), the rack A (70301) is arranged at the bottom of the upper slide rod (703), the rack B (70201) is arranged at the top of the lower slide rod (702) and corresponds to the rack A (70301), the rack A (70301) and the rack B (70201) are connected through the linkage gear (705), and the linkage gear (705) is installed in the mounting groove (608).

10. The mechanical timer for gas hob according to claim 6, characterized in that: The energy storage mechanism (200) comprises a reset spring (203), the top end of the reset spring (203) is provided with a snap ring (202) to be sleeved on the ignition valve rod (800) of the gas stove, and the bottom end of the reset spring (203) is provided with an elbow (201) to be fixed in the spring fixing hole (612).

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