CN112558453A - Mechanical timer - Google Patents

Abstract

The present invention provides a mechanical timer, comprising: the casing and arrange main shaft assembly in the casing respectively, actuating mechanism, drive mechanism, adjustment mechanism and lever mechanism, main shaft assembly drive actuating mechanism, adjustment mechanism is connected with drive mechanism, lever mechanism through set up in the casing lever spare respectively with main shaft assembly and the cooperation of the bell hammer mechanism on the casing, the one end of lever spare is rotated and is set up in the casing, the upper end and the cooperation of bell hammer mechanism of lever spare, the lower extreme and the main shaft assembly cooperation of lever spare, adjustment mechanism includes: the escape wheel and balance wheel assembly is connected with the transmission mechanism; the adjusting mechanism further comprises an adjusting block which is arranged on the shell and used for adjusting the balance wheel assembly, and one end of the adjusting block is coaxially connected with the balance wheel assembly. The mechanical timer is simple in overall structure, convenient to operate and reasonable in internal arrangement, the total timing time can be adjusted rapidly through the adjusting mechanism during batch production, and the precision and the qualification rate of products are improved.

Description

Mechanical timer

Technical Field

The invention relates to the technical field of timers, in particular to a mechanical timer.

Background

The electric oven is a kitchen appliance for baking food by utilizing radiant heat emitted by an electric heating element, and the electric oven heats food by a heat conduction principle when cooking food, is a traditional food cooking mode, is uniformly heated, and better keeps moisture and original nutritional ingredients of the food, so the electric oven is popular, and along with the increasingly wide use of the electric oven, the use of a timer of the electric oven is more and more emphasized by families.

Existing oven mechanical timers generally include three parts: the first part is a power component; the second part is a mechanism for releasing the energy of the clockwork spring, which is changed by a series of gears to increase the rotation number when the clockwork spring is loosened, an escape wheel, an escape pawl and a balance spring are arranged at the tail end of the gear train to ensure that the gear train rotates at a constant speed under the driving of the clockwork spring, and the balance spring is provided with an adjusting device capable of adjusting the length of the balance spring to adjust the swinging frequency of the escape pawl, so that the gear train is ensured to rotate at a set rotating speed, the clockwork spring cannot be loosened at once, and the rotating speed cannot be changed due to the influence of the loosening of the clo; the third part is a timing trigger mechanism, and the timing trigger mechanism is synchronously triggered when the clockwork is screwed down, namely, the timing trigger mechanism is closed and switched on by a contact of timing equipment and completes the timing function; the existing timer trigger mechanism cannot well ensure that ringing is realized while the reed is disconnected, so that the effect of reminding a user is achieved, and the integral internal structure is complex and troublesome to disassemble and assemble; in addition, the conventional timer cannot rapidly adjust the timing total time through an adjusting mechanism conveniently during batch production, and the precision and the qualification rate of products are low.

Disclosure of Invention

Technical problem to be solved

The invention aims to solve the technical problem of providing a mechanical timer which can quickly adjust the total timing time through an adjusting mechanism during batch production, effectively improve the precision and the qualification rate of products and has good ringing timing effect.

(II) technical scheme

In order to solve the technical problem, the invention discloses a mechanical timer, which comprises: the utility model provides a bell machine, including casing and arrange respectively main shaft assembly, actuating mechanism, drive mechanism, adjustment mechanism and lever mechanism in the casing, the main shaft assembly drive actuating mechanism, adjustment mechanism with drive mechanism connects, drive mechanism with adjustment mechanism control main shaft assembly rotates, lever mechanism is in through setting up lever spare in the casing respectively with main shaft assembly with bell hammer mechanism cooperation on the casing, the setting of this structure utilizes thereby adjustment mechanism's regulation effect realizes the change of different timing demands, is provided with in addition lever mechanism can guarantee to make in the time of finishing bell hammer mechanism realizes beating the bell to make the reed disconnection of timer one side, holistic simple structure, inner structure sets up, and the user is more convenient in the operation and use.

Further, the adjustment mechanism includes: the escape wheel is connected with the transmission mechanism, and the balance wheel assembly is arranged in the shell; the adjusting mechanism further comprises an adjusting block which is arranged on the shell and used for adjusting the balance wheel assembly, one end of the adjusting block is connected with the balance wheel assembly, the adjusting mechanism can be used for controlling the rotation of the spindle assembly so as to realize timing time frequency adjustment, the adjusting block can be conveniently operated and used by a user, the whole structure is simple, and the occupied space is small; the regulating block includes: the adjusting part is arranged at one end of the adjusting block and matched with the balance wheel assembly, the adjusting block is arranged on the shell through the mounting part, the adjusting block can be more firmly fixed through the structure, the adjusting part is used for adjusting the balance wheel assembly, so that the center distance between the balance wheel assembly and the escape wheel is changed, and the operation and the use are more convenient.

Furthermore, the shell is provided with a mounting groove, one end of the adjusting block is rotatably arranged in the mounting groove, a mounting hole is eccentrically formed in the adjusting block, one end of the balance wheel assembly is arranged in the mounting hole through a rotating shaft, the adjusting block is mounted through the mounting groove, adjustment of different center distances is achieved through the mounting hole, the occupied space is small, the adjusting operation is simple and convenient, and the overall structure is reasonable in arrangement.

Furthermore, the one end of lever spare is rotated and is set up in the casing, the upper end of lever spare with the cooperation of clapper mechanism, the lower extreme of lever spare with spindle unit cooperation utilizes the lever structure of lever spare formation in the casing, thereby can make the rotation through spindle unit accomplish the drive to lever spare realize the effect of beating the bell and reminding and auto-power-off at regular time, lever structure sets up rationally, inside simple structure, clapper mechanism the spindle unit with connect between the lever spare closely, can effectively promote the result of use.

Further, the lever member includes: the upper end surface of the second contact part is higher than the first contact part, and the first contact part is in contact fit with the spindle assembly; the second contact part with the cooperation of beating the hammer of clapper mechanism, it sets up to beat the hammer rotation on the casing, the through-hole has been seted up on the casing, the upper end of second contact part is passed and is penetrated the second contact part, through first contact part with the second contact part respectively with spindle assembly and clapper mechanism cooperation realizes the power off effect of beating the bell of timer, and set up on the casing with the hole can guarantee the second contact part with cooperation between the clapper mechanism, inner structure is more reasonable.

Furthermore, a movable reed and a static reed are arranged on one side of the shell, a first protruding part is arranged on one side, facing the spindle assembly, of the lower end of the lever member, the first protruding part is matched with the spindle assembly, a cam is arranged in the shell and is arranged at one end of the spindle assembly, a groove is formed in the edge of the cam, the first protruding part is matched with the groove in the cam, the first protruding part can be matched with the groove in the cam to drive the lever assembly to rotate so as to achieve the bell striking effect of the bell hammer mechanism and the power-off effect of the reeds, the structure is reasonable, a second protruding part is arranged on one side, away from the spindle assembly, of the lever member, the second protruding part is matched with one side of the movable reed, and the second protruding part is matched with the movable reed to achieve the opening and closing of the movable reed and the static reed, thereby guarantee the safe handling of oven, carry out the auto-power-off when regularly finishing, guaranteed the security of using.

Further, the housing includes: the lower shell is detachably arranged on one side of the upper shell, the driving mechanism is arranged in the lower shell, and the transmission mechanism, the adjusting mechanism and the lever mechanism are arranged in the upper shell; the arrangement of this structure can reduce the cost and make, effectively reduces the whole volume of timer, the actuating mechanism includes: clockwork spring and spring barrel, the spring sets up in the spring barrel, the one end and the main shaft assembly of spring are connected, the spring barrel sets up in the casing, drive mechanism includes drive gear group, drive gear group includes: first gear assembly, second gear assembly, third gear assembly and fourth gear assembly, the lower extreme of first gear assembly with actuating mechanism connects, first gear assembly the second gear assembly the third gear assembly with the fourth gear assembly meshes the connection in proper order, the lower extreme of fourth gear assembly with adjustment mechanism connects, through rotate spindle assembly makes thereby clockwork spring is tightened and is driven the timer and time, the setting of drive gear group can guarantee that inner structure's precision is higher, guarantees the timing effect of timer effectively.

Further, the upper case includes: the upper cover is buckled with the lower cover, the driving mechanism, the transmission mechanism, the adjusting mechanism and the lever mechanism are arranged between the upper cover and the lower cover, a back bell is arranged above the upper cover, the bell hammer mechanism is arranged in the back bell, the upper cover and the lower cover are convenient to detach and maintain, and meanwhile, the whole structure can be more stable.

(III) advantageous effects

Compared with the prior art, the mechanical timer has the advantages that: the effects of timing to finish ringing and power-off can be realized, the internal structure is tightly matched, the rotation of the lever member is realized by matching the cam with the boss on the lever member through the lever member, the internal structure is reasonably arranged, and the timer has stronger functionality; the security that the timer used is higher, and the time quick adjustment of timer when can realizing batch production, convenient operation through being provided with the regulating block, utilizes the rotation regulation of regulating block to change the centre-to-centre spacing of balance subassembly and escape wheel, satisfies different timing demands, and inner structure occupation space is few, and overall structure sets up more rationally.

Drawings

FIG. 1 is a cross-sectional view of a mechanical timer of the present invention;

FIG. 2 is a top view of a mechanical timer of the present invention with the top cover removed;

FIG. 3 is a top view of a mechanical timer of the present invention with the back bell removed;

FIG. 4 is an enlarged view of a mechanical timer of the present invention at A;

FIG. 5 is an enlarged view of a mechanical timer of the present invention at B;

wherein: 1 is a shell, 101 is an upper cover, 102 is a lower cover, 2 is a spindle assembly, 3 is a driving mechanism, 301 is a clockwork spring, 302 is a clockwork spring barrel, 4 is a transmission mechanism, 401 is a transmission gear set, 411 is a first gear assembly, 421 is a second gear assembly, 431 is a third gear assembly, 441 is a fourth gear assembly, 5 is an adjusting mechanism, 501 is an escape wheel, 502 is a balance wheel assembly, 503 is an adjusting block, 513 is an adjusting part, 523 is a mounting part, 6 is a lever mechanism, 601 is a lever member, 611 is a first contact part, 621 is a second contact part, 631 is a first protrusion, 641 is a second protrusion, 7 is a hammer mechanism, 701 is a hammer, 702 is a back bell, 8 is a mounting groove, 9 is a mounting hole, 1001 is a movable spring, 1002 is a stationary spring, 11 is a through hole, 12 is a groove, 1301 is an upper shell, 1302 is a lower shell, and 14 is a cam.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Referring to fig. 1 to 5, a mechanical timer includes: casing 1 and arrange main shaft assembly 2 in casing 1 respectively, actuating mechanism 3, drive mechanism 4, adjustment mechanism 5 and lever mechanism 6, main shaft assembly 2 drives actuating mechanism 3, adjustment mechanism 5 is connected with drive mechanism 4, drive mechanism 4 and 5 control main shaft assembly 2 rotations of adjustment mechanism, lever mechanism 6 through set up lever 601 in casing 1 respectively with main shaft assembly 2 and the cooperation of bell hammer mechanism 7 on the casing 1, specific: the mainshaft component 2 is rotated to tighten the clockwork 301 on the driving mechanism 3, and the transmission mechanism 4 is driven to slowly loosen the clockwork 301 through the adjusting mechanism 5, so that the timing effect of the mainshaft component 2 is realized, the lever mechanism 6 finishes the effects of ringing and power-off, the whole structure is simple, and the internal structure is reasonable in arrangement.

Referring to fig. 1 and 4, the adjusting mechanism 5 includes: an escape wheel 501 and a balance wheel assembly 502, wherein the escape wheel 501 is connected with the transmission mechanism 4, in the embodiment, the escape wheel 501 is a ratchet wheel, and the balance wheel assembly 502 is arranged in the shell 1; regulating organ 5 also comprises a regulating block 503 placed on casing 1 for regulating balance assembly 502, regulating block 503 being connected at one end to balance assembly 502, regulating block 503 comprising: regulation portion 513 and installation department 523, regulation portion 513 sets up in one end of regulating block 503 and cooperates with balance wheel assembly 502, and regulating block 503 sets up on casing 1 through the installation department, specifically: the mainshaft assembly 2 is rotated to enable the spiral spring 301 in the driving mechanism 3 to be wound, the escape wheel 501 is driven to rotate by utilizing the spiral spring 301, the rotating speed of the transmission gear set 401 is high due to the winding of the spiral spring 301, the balance wheel assembly 502 can play a role in limiting speed for the escape wheel 501, the center distance between the balance wheel assembly 502 and the escape wheel 501 is changed through the rotation regulation of the regulating block 503, so that the rotation of the transmission gear set 401 is limited, different timing requirements are realized, the whole structure is reasonable, the operation and the use of a user are simple, the rotation of the regulating block 503 is realized through the setting of the mounting part 523, the regulation setting of the balance wheel assembly 502 is realized, the setting occupation space of the regulating block 503 is small, and the whole.

Referring to fig. 1, 2 and 4, a mounting groove 8 is formed in the housing 1, one end of the adjusting block 503 is rotatably disposed in the mounting groove 8, a mounting hole 9 is eccentrically disposed on the adjusting block 503, and one end of the balance wheel assembly 502 is disposed in the mounting hole 9 through a rotating shaft, specifically: the arrangement of the mounting hole 9 can play a role in limiting and fixing the rotating shaft of the balance wheel assembly 502, the rotation adjusting block 503 can realize rotation adjusting arrangement on the balance wheel assembly 502 through the mounting hole 9, and further the center distance between the balance wheel assembly 502 and the escape wheel 501 is changed, so that the time adjusting effect is realized.

Referring to fig. 1, 3 and 5, the lever member 601 includes: a first contact portion 611 and a second contact portion 621, the upper end surface of the second contact portion 621 is higher than the first contact portion 611, and the first contact portion 611 is in contact fit with the main shaft assembly 2; second contact site 621 and the cooperation of beating hammer 701 of clapper mechanism 7, beat hammer 701 and rotate and set up on casing 1, seted up through-hole 11 on casing 1, second contact site 621 is worn to penetrate second contact site 621, and is specific in the upper end of second contact site 621: the first contact portion 611 is disposed below the second contact portion 621, the first contact portion 611 is engaged with the spindle assembly 2 and the spring plate, and the second contact portion 621 is engaged with the clapper mechanism 7, so that the overall structure is more reasonable.

Referring to fig. 2, fig. 3 and fig. 5, one side of housing 1 is provided with movable spring 1001 and stationary spring 1002, one side of the lower extreme of lever 601 towards spindle unit 2 is provided with first boss 631, first boss 631 cooperates with spindle unit 2, be provided with cam 14 in housing 1, cam 14 sets up the one end at spindle unit 2, recess 12 has been seted up on cam 14's the edge, first boss 631 cooperates with recess 12 on the cam 14, one side of lever 601 that keeps away from spindle unit 2 is provided with second boss 641, second boss 641 cooperates with one side of movable spring 1001, it is concrete: the first projection 631 is arranged to cooperate with the groove 12 on one side of the cam 14, when the cam 14 rotates, the first projection 631 falls into the groove 12, the lever 601 makes the first projection 631 abut against the groove 12 under the elastic action of the spring, the movable spring 1001 and the static spring 1002 are disconnected, and the second contact 641 at the upper end of the lever 601 touches the clapper mechanism 7 to realize ringing; when first projection 631 disengages from groove 12, one end of lever 601 presses down on the spring, bringing movable spring 1001 and stationary spring 1002 into contact to achieve the timing effect.

Referring to fig. 1, 3 and 5, one end of the lever 601 is rotatably disposed in the housing 1, the upper end of the lever 601 is matched with the clapper mechanism 7, and the lower end of the lever 601 is matched with the spindle assembly 2, specifically: the driving mechanism 3 drives the spindle assembly 2 to rotate, the cam 14 on the spindle assembly 2 rotates to enable the edge of the spindle assembly 2 to be matched with the lever part 601, and the groove 12 formed in the cam 14 can be matched with the first protruding part 631 on the lever part 601 to realize the matching with the bell hammer mechanism 7 and the reed, so that the whole structure is simple, and the using effect is better.

Referring to fig. 1 and 2, the housing 1 includes: go up casing 1301 and lower casing 1302, lower casing 1302 detachably sets up in one side of last casing 1301, and actuating mechanism 3 arranges in lower casing 1302, and drive mechanism 4, adjustment mechanism 5 and leverage 6 arrange in last casing 1301, and casing 1 is made by the high temperature nylon material in this embodiment, and actuating mechanism 3 includes: spring 301 and spring barrel 302, spring 301 sets up in spring barrel 302, and spring 301's one end is connected with main shaft assembly 2, and spring barrel 302 sets up in casing 1, and drive mechanism 4 includes drive gear group 401, and drive gear group 401 includes: first gear assembly 411, second gear assembly 421, third gear assembly 431 and fourth gear assembly 441, the lower extreme and the actuating mechanism 3 of first gear assembly 411 are connected, first gear assembly 411, second gear assembly 421, third gear assembly 431 and fourth gear assembly 441 mesh in proper order and connect, the lower extreme and the adjustment mechanism 5 of fourth gear assembly 441 are connected, the lower extreme setting of first gear assembly 411 is connected with clockwork spring 301 in barrel 302, main shaft assembly 2 is connected to the one end of clockwork spring 301, the lower extreme of second gear assembly 421 meshes with the upper end of first gear assembly 411, the upper extreme of third gear assembly 431 meshes with the upper end of second gear assembly 421, the upper extreme and the lower extreme meshing of third gear assembly 431 of fourth gear assembly 441, holistic structure sets up rationally, the driven precision is high, the timing effect is better.

Referring to fig. 1, an upper case 1301 includes: upper cover 101 and lower cover 102, upper cover 101 and lower cover 102 lock, actuating mechanism 3, drive mechanism 4, adjustment mechanism 5 and lever mechanism 6 all arrange in between upper cover 101 and lower cover 102, and the top of upper cover 101 is provided with back of the body bell 702, and in back of the body bell 702 was arranged in to bell hammer mechanism 7, upper cover 101 and lower cover 102 lock made things convenient for the dismouting maintenance, and holistic structure is more firm.

The mechanical timer of the embodiment is provided with the lever piece, the cam is matched with the boss on the lever piece to realize the rotation of the lever piece, the internal structure is reasonably arranged, the functionality of the timer is stronger, the effects of finishing ringing at regular time and cutting off the power can be realized, and the internal structure is tightly matched; through being provided with the regulating block, utilize the rotation regulation of regulating block to change the centre-to-centre spacing of balance subassembly and escape wheel, satisfy different timing demands, inner structure occupation space is few, and overall structure sets up more rationally, and the security that the timer used is higher, can realize the time quick adjustment of timer, convenient operation.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims (10)

1. A mechanical timer, comprising: casing (1) and arrange respectively main shaft assembly (2), actuating mechanism (3), drive mechanism (4), adjustment mechanism (5) and lever mechanism (6) in casing (1), main shaft assembly (2) drive actuating mechanism (3), adjustment mechanism (5) with drive mechanism (4) are connected, drive mechanism (4) with adjustment mechanism (5) control main shaft assembly (2) rotate, lever mechanism (6) through setting up lever spare (601) in casing (1) respectively with main shaft assembly (2) with bell hammer mechanism (7) cooperation on casing (1).

2. The mechanical timer according to claim 1, wherein the adjusting mechanism (5) comprises: an escape wheel (501) and a balance wheel assembly (502), wherein the escape wheel (501) is connected with the transmission mechanism (4), and the balance wheel assembly (502) is arranged in the shell (1); the adjusting mechanism (5) further comprises an adjusting block (503) which is arranged on the shell (1) and used for adjusting the balance wheel assembly (502), and one end of the adjusting block (503) is connected with the balance wheel assembly (502).

3. The mechanical timer according to claim 2, wherein the adjustment block (503) comprises: the balance wheel assembly comprises a regulating portion (513) and a mounting portion (523), wherein the regulating portion (513) is arranged at one end of a regulating block (503) and matched with the balance wheel assembly (502), and the regulating block (503) is arranged on the shell (1) through the mounting portion.

4. The mechanical timer according to claim 2 or 3, wherein the housing (1) is provided with an installation groove (8), one end of the adjusting block (503) is rotatably disposed in the installation groove (8), the adjusting block (503) is eccentrically provided with an installation hole (9), and one end of the balance wheel assembly (502) is disposed in the installation hole (9) through a rotating shaft.

5. The mechanical timer according to claim 1, wherein one end of the lever member (601) is rotatably disposed in the housing (1), the upper end of the lever member (601) is engaged with the clapper mechanism (7), and the lower end of the lever member (601) is engaged with the spindle assembly (2).

6. The mechanical timer according to claim 1, wherein the lever member (601) comprises: a first contact part (611) and a second contact part (621), wherein the upper end face of the second contact part (621) is higher than the first contact part (611), and the first contact part (611) is in contact fit with the main shaft assembly (2); the second contact part (621) is matched with a hammer (701) of the bell hammer mechanism (7), the hammer (701) is rotatably arranged on the shell (1), a through hole (11) is formed in the shell (1), and the upper end of the second contact part (621) penetrates through the second contact part (621).

7. Mechanical timer according to claim 1, characterized in that one side of the housing (1) is provided with a movable spring plate (1001) and a stationary spring plate (1002), a first bulge (631) is arranged on one side of the lower end of the lever member (601) facing the spindle assembly (2), the first bulge (631) is matched with the spindle assembly (2), a cam (14) is arranged in the shell (1), the cam (14) is arranged at one end of the spindle assembly (2), a groove (12) is formed in the edge of the cam (14), the first projection (631) cooperates with a recess (12) on the cam (14), a second bulge part (641) is arranged on one side of the lever part (601) far away from the spindle assembly (2), the second protrusion (641) is fitted to one side of the movable spring plate (1001).

8. Mechanical timer according to claim 1, characterized in that the housing (1) comprises: the device comprises an upper shell (1301) and a lower shell (1302), wherein the lower shell (1302) is detachably arranged on one side of the upper shell (1301), the driving mechanism (3) is arranged in the lower shell (1302), and the transmission mechanism (4), the adjusting mechanism (5) and the lever mechanism (6) are arranged in the upper shell (1301); the drive mechanism (3) comprises: spring (301) and spring barrel (302), spring (301) set up in spring barrel (302), the one end and the main shaft assembly (2) of spring (301) are connected, spring barrel (302) set up in casing (1).

9. A mechanical timer according to any of the claims 1, wherein the transmission mechanism (4) comprises a transmission gear set (401), the transmission gear set (401) comprising: the lower end of the first gear assembly (411) is connected with the driving mechanism (3), the first gear assembly (411), the second gear assembly (421), the third gear assembly (431) and the fourth gear assembly (441) are sequentially meshed and connected, and the lower end of the fourth gear assembly (441) is connected with the adjusting mechanism (5).

10. The mechanical timer according to claim 8, wherein the upper housing (1301) comprises: the bell-shaped bell comprises an upper cover (101) and a lower cover (102), wherein the upper cover (101) is buckled with the lower cover (102), the driving mechanism (3), the transmission mechanism (4), the adjusting mechanism (5) and the lever mechanism (6) are arranged between the upper cover (101) and the lower cover (102), a back bell (702) is arranged above the upper cover (101), and the bell hammer mechanism (7) is arranged in the back bell (702).

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