Automatic lifting device
By installing a micro switch inside the end cap in the automatic lifting device, combined with the end cap and limit switch, the problem of device failure in the humid and oily environment of the kitchen is solved, and a lifting system with simple structure, high reliability and strong stability is realized.
Patent Information
- Application Number
- CN202423066269.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Existing automatic lifting systems are prone to water ingress and malfunction in humid and oily kitchen environments, and the repeated folding of signal cables leads to a short lifespan.
A micro switch is installed inside the end cap, and the end cap covers the lifting rod. The connecting wire extends through the mounting hole into the lifting rod. Combined with the limit switch and drive mechanism, water and oil are prevented from entering the micro switch, and the connecting wire is prevented from folding. Silicone pressure blocks and end caps are used to improve stability.
It effectively avoids microswitch malfunction, extends service life, improves the reliability and stability of the device, and has a simple structure, small size, and is easy to use.
Smart Images
Figure CN223554676U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hoisting equipment technical field, concretely relates to an automatic lifting device. BACKGROUND
[0002] The noodle cooking furnace is a kind of kitchen equipment for cooking noodles, dumplings or food, and is suitable for noodle restaurant, restaurant, dining hall and other places with large passenger flow, and different kinds of food need to be cooked separately using different noodle cooking baskets, so the noodle cooking furnace is generally provided with an automatic lifting system for noodle cooking basket, but the existing automatic lifting system is prone to water ingress failure when starting switch in the kitchen humid and oil smoke accumulation environment, and the signal line of starting switch will be repeatedly folded with the reciprocating movement of lifting rod, and the signal line is prone to fatigue breakage after a period of use, so the service life of automatic lifting system is shorter, and there is certain limitation. CONTENT OF THE UTILITY MODEL
[0003] The utility model solves the technical problem of overcoming the deficiencies in the prior art, and provides an automatic lifting device with simple structure, small size, high reliability and stability and long service life.
[0004] To solve the above technical problems, the utility model adopts the following technical scheme:
[0005] An automatic lifting device includes a shell, a lifting rod, a drive mechanism for driving the lifting rod to make lifting action, and a press starting mechanism, an upper limit switch and a lower limit switch for controlling the working state of the drive mechanism, the press starting mechanism includes an end cap, a micro switch and an end cap, the end cap is provided with a mounting hole, the micro switch is arranged in the mounting hole, the end cap is arranged at the upper end of the lifting rod, and the end cap is arranged at the upper end of the lifting rod and covers the end cap, the micro switch, the upper limit switch and the lower limit switch are electrically connected with the drive mechanism.
[0006] As a further improvement of the above technical scheme:
[0007] The lifting rod is fixedly provided with a pressing block for abutting with the upper limit switch and the lower limit switch, and the pressing block is an integral structure and is made of silica gel.
[0008] The shell is provided with a wiring groove for the connecting line of the micro switch to pass out.
[0009] The drive mechanism includes a motor fixedly arranged on the shell, a driving gear power-connected with the motor, and a rack fixedly arranged on the lifting rod, and the driving gear is meshed with the rack.
[0010] The inner wall of the pressing surface of the end cap is formed with a first boss for abutting contact with the upper end surface of the end cover, and the inner side of the first boss is formed with a second boss for abutting contact with the micro switch.
[0011] The end cover has a plug and a tube extension portion extending in the tube, the tube extension portion is arranged in the tube cavity, and the plug abuts against the end of the lifting rod.
[0012] The inner wall of the side surface of the end cap is formed with a limiting protrusion for abutting contact with the plug, and the side of the end cap away from the plug is formed with a deformation chamber.
[0013] The plug is formed with a recessed cavity, the mounting hole is located in the recessed cavity, the second boss can be deformed by the pressing surface of the end cap to extend into the mounting hole and abut against the micro switch, and the first boss can be deformed by the pressing surface of the end cap to extend into the recessed cavity and abut against the upper end surface of the recessed cavity.
[0014] The mounting hole is provided with a limiting groove, the micro switch is provided with a limiting protrusion, the limiting protrusion abuts against the limiting groove, and the micro switch is positioned in the mounting hole.
[0015] The end cap is an integral structure and is made of silica gel.
[0016] Compared with the prior art, the end cap is an integral structure and is made of silica gel.
[0017] The automatic lifting device comprises a shell, a lifting rod, a driving mechanism, a pressing starting mechanism, an upper limit switch and a lower limit switch, wherein the micro switch of the pressing starting mechanism is installed in an end cover, the end cover is installed on the lifting rod, the end cap is installed on the lifting rod and covers the end cover, water or oil can be effectively prevented from entering the micro switch to cause malfunction, the connecting line of the micro switch passes through the mounting hole and extends into the lifting rod, the connecting line is prevented from being repeatedly folded or pressed, the service life of the micro switch is prolonged, when it is necessary to control the lifting rod to perform lifting action, a user can directly press the pressing surface of the end cap, the end cap abuts against the micro switch, the micro switch controls the driving mechanism to start and drive the lifting rod to perform corresponding action, when the lifting rod is lifted to abut against the upper limit switch, the upper limit switch controls the driving mechanism to stop, and the lifting rod is kept in a high position, when the lifting rod is lowered to abut against the lower limit switch, the lower limit switch controls the driving mechanism to stop, and the lifting rod is kept in a low position, the automatic lifting device has the advantages of simple structure, small size, high reliability and stability, good use convenience and long service life. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1It is a structure schematic view of automatic lifting device.
[0019] Figure 2 It is a structure schematic view of automatic lifting device from another angle.
[0020] Figure 3 It is a split structure schematic view of automatic lifting device.
[0021] Figure 4 It is a split structure schematic view of automatic lifting device from another angle.
[0022] Figure 5 It is a split structure schematic view of pressing starting mechanism.
[0023] Figure 6 It is a half cut structure schematic view of pressing starting mechanism.
[0024] Figure 7 It is a half cut split structure schematic view of pressing starting mechanism.
[0025] Figure 8 It is a connection schematic view of micro switch and end cap.
[0026] Legend:
[0027] 1, shell; 101, wiring through slot; 2, lifting rod; 201, lumen; 3, driving mechanism; 301, motor; 302, driving gear; 303, rack; 4, pressing starting mechanism; 401, end cap; 4011, mounting hole; 4012, plug; 4013, inner extension; 4014, concave cavity; 4015, limiting groove; 402, micro switch; 4021, limiting block; 403, end cap; 4031, first boss; 4032, second boss; 4033, limiting convex part; 4034, deformation chamber; 5, upper limit switch; 6, lower limit switch; 7, pressing block. DETAILED DESCRIPTION
[0028] The utility model will be further explained in detail below in combination with the drawings and specific embodiments.
[0029] As Figures 1 to 8As shown, the automatic lifting device of the embodiment comprises a shell 1, a lifting rod 2, a driving mechanism 3 for driving the lifting rod 2 to make lifting action, and a press starting mechanism 4, an upper limit switch 5 and a lower limit switch 6 for controlling the working state of the driving mechanism 3, the press starting mechanism 4 comprises an end cap 401, a micro switch 402 and an end cap 403, the end cap 401 is provided with a mounting hole 4011, the micro switch 402 is arranged in the mounting hole 4011, the end cap 401 is arranged at the upper end of the lifting rod 2, and the end cap 403 is arranged at the upper end of the lifting rod 2 and covers the end cap 401, and the micro switch 402, the upper limit switch 5 and the lower limit switch 6 are electrically connected with the driving mechanism 3. The automatic lifting device comprises the shell 1, the lifting rod 2, the driving mechanism 3, the press starting mechanism 4, the upper limit switch 5 and the lower limit switch 6, wherein the micro switch 402 of the press starting mechanism 4 is mounted in the end cap 401, the end cap 401 is mounted on the lifting rod 2, the end cap 403 is mounted on the lifting rod 2 and covers the end cap 401, which can effectively prevent water or oil from entering the micro switch 402 and causing failure, and the connecting line of the micro switch 402 passes through the mounting hole 4011 and extends into the lifting rod 2, avoiding the connecting line from being repeatedly folded or pressed, which is beneficial to prolong the service life of the micro switch 402. When it is necessary to control the lifting rod 2 to make lifting action, the user can directly press the pressing surface of the end cap 403, so that the end cap 403 abuts against the micro switch 402, the micro switch 402 controls the driving mechanism 3 to start and drives the lifting rod 2 to make corresponding action, when the lifting rod 2 rises to abut against the upper limit switch 5, the upper limit switch 5 controls the driving mechanism 3 to stop, so that the lifting rod 2 remains in the high position state, and when the lifting rod 2 descends to abut against the lower limit switch 6, the lower limit switch 6 controls the driving mechanism 3 to stop, so that the lifting rod 2 remains in the low position state. The automatic lifting device has the advantages of simple structure, small size, high reliability and stability, and good use convenience, which can effectively prolong the service life of the automatic lifting device.
[0030] Preferably, the lifting rod 2 is fixedly provided with a pressing block 7 for abutting against the upper limit switch 5 and the lower limit switch 6, the pressing block 7 is an integral structure and is made of silica gel. In the embodiment, when the pressing block 7 on the lifting rod 2 rises to abut against the upper limit switch 5, the upper limit switch 5 controls the driving mechanism 3 to stop, and the lifting rod 2 and the face basket fixing frame thereon remain in the lifted state, and when the pressing block 7 on the lifting rod 2 descends to abut against the lower limit switch 6, the lower limit switch 6 controls the driving mechanism 3 to stop, and the lifting rod 2 and the face basket fixing frame thereon remain in the soaking state. The pressing block 7 is made of silica gel and has good elasticity and softness, which can make soft contact when abutting against the upper limit switch 5 and the lower limit switch 6, thereby reducing the risk of damage of the upper limit switch 5 and the lower limit switch 6 due to impact and friction during use and prolonging the service life.
[0031] Preferably, the shell 1 is provided with a wiring slot 101 for the connection line of the micro switch 402. In the embodiment, the shell 1 is provided with a wiring slot 101 extending in the vertical direction, the connection line of the micro switch 402 is led out from the lifting rod 2 and passes through the wiring slot 101 to be connected with the driving mechanism 3, and the connection line of the micro switch 402 can move along the wiring slot 101 during the lifting action of the lifting rod 2, so as to avoid the connection line being repeatedly folded or pressed in the shell 1, and to prolong the service life of the micro switch 402.
[0032] Preferably, the driving mechanism 3 comprises a motor 301 fixedly arranged on the shell 1, a driving gear 302 connected with the motor 301, and a rack 303 fixedly arranged on the lifting rod 2, and the driving gear 302 is in meshing connection with the rack 303. In the embodiment, the driving mechanism 3 adopts the gear and rack transmission mode, which has the advantages of high transmission efficiency, large transmission power and good stability, and in other embodiments, the driving mechanism 3 can also adopt a telescopic cylinder transmission, a chain transmission or other components with reciprocating movement function, which is not limited to the embodiment.
[0033] Preferably, the inner wall of the pressing surface of the end cap 403 is formed with a first boss 4031 for abutting contact with the upper end surface of the end cover 401, and the inner side of the first boss 4031 is formed with a second boss 4032 for abutting contact with the micro switch 402. In the embodiment, the first boss 4031 and the second boss 4032 are formed on the inner side of the pressing surface of the end cap 403, when it is necessary to control the lifting action of the lifting rod 2, the user can directly press the pressing surface of the end cap 403, so that the first boss 4031 and the second boss 4032 are close to the end cover 401, when the second boss 4032 abuts the micro switch 402, the micro switch 402 sends an action signal to the driving mechanism 3 to drive the lifting rod 2 to lift, and at the same time, the first boss 4031 abuts the upper end surface of the end cover 401 to prevent the second boss 4032 from excessively pressing the micro switch 402, which is beneficial to prolong the service life of the micro switch 402.
[0034] Preferably, the lifting rod 2 has a tube cavity 201, the end cover 401 has a plug 4012 and a tube inner extension 4013, the tube inner extension 4013 is arranged in the tube cavity 201, and the plug 4012 abuts the end of the lifting rod 2. In the embodiment, the lifting rod 2 is provided with a plurality of through holes, the tube inner extension 4013 is provided with a plurality of positioning holes, and a fastener (screw) passes through the through hole and is arranged in the positioning hole, so as to fix the end cover 401 to the lifting rod 2, which has the advantages of simple structure, convenient and fast assembly and disassembly, and can effectively improve the connection stability of the end cover 401 on the lifting rod 2 and enhance the reliability of the pressing starting mechanism 4.
[0035] Preferably, the side inner wall of the end cap 403 is formed with a limiting protrusion 4033 for abutting contact with the plug 4012, and the side of the end cap 403 away from the plug 4012 is formed with a deformation chamber 4034. In this embodiment, the limiting protrusion 4033 is formed on the side inner wall of the end cap 403, which can abut with the plug 4012 of the end cover 401 when the end cap 403 is installed on the lifting rod 2, facilitating the installation of the end cap 403 by the staff at the appropriate position; the side of the end cap 403 close to the pressing surface is formed with a deformation chamber 4034, the wall thickness of the deformation chamber 4034 is thin, which is easy to deform under external force, facilitating the user to press the pressing surface with the finger to deform, thereby driving the second boss 4032 to abut and contact the micro switch 402 to trigger the start, which is convenient to use.
[0036] Preferably, the plug 4012 is formed with a recess 4014, and the mounting hole 4011 is located in the recess 4014, the second boss 4032 can be deformed through the pressing surface of the end cap 403 to extend into the mounting hole 4011 and abut and contact the micro switch 402, and the first boss 4031 can be deformed through the pressing surface of the end cap 403 to extend into the recess 4014 and abut and contact the upper end surface of the recess 4014. In this embodiment, by opening the recess 4014 on the plug 4012, the distance between the first boss 4031 and the upper end surface of the plug 4012 is increased, and the distance between the second boss 4032 and the micro switch 402 is increased, that is, the pressing surface of the end cap 403 needs to be deformed greatly to trigger the start of the micro switch 402, which can effectively avoid accidental start.
[0037] Preferably, the mounting hole 4011 is provided with a limiting groove 4015, and the micro switch 402 is provided with a limiting protrusion 4021, the limiting protrusion 4021 abuts with the limiting groove 4015 to position the micro switch 402 in the mounting hole 4011. In this embodiment, when the micro switch 402 is installed in the end cover 401, the micro switch 402 can be directly placed in the mounting hole 4011, the limiting protrusion 4021 abuts with the limiting groove 4015 to keep the micro switch 402 stable in position in the mounting hole 4011, the limiting groove 4015 can provide support force when the micro switch 402 is pressed, ensuring the normal use of the micro switch 402, and when maintenance and replacement, the micro switch 402 can be directly lifted out of the mounting hole 4011, which has the advantages of convenient and fast installation and removal, and high maintenance efficiency.
[0038] Preferably, the end cap 403 is an integral structure and is made of silica gel. In the embodiment, the end cap 403 is mainly formed by an integral injection molding process, which has the advantages of good quality stability and low cost. The end cap 403 is made of silica gel, which is an environmentally friendly and safe food-grade material, does not contain toxic substances, has a wide temperature range, is suitable for use on the noodle basket lifting device of the noodle cooking furnace, and has good resilience and tear resistance, which can effectively prolong the service life of the end cap 403.
[0039] The preferred embodiments of the present application have been described above, but the protection scope of the present application is not limited to the above-mentioned embodiments. Improvements and changes obtained by those skilled in the art without departing from the technical concept of the present application should also be considered as within the protection scope of the present application.
Claims
1. An automatic lifting device, characterized in that, The device includes a housing (1), a lifting rod (2), a drive mechanism (3), a press-start mechanism (4), an upper limit switch (5), and a lower limit switch (6). The press-start mechanism (4) includes an end cap (401), a micro switch (402), and an end cap (403). The end cap (401) has a mounting hole (4011). The micro switch (402) is located in the mounting hole (4011). The end cap (401) is located at the upper end of the lifting rod (2). The end cap (403) is located at the upper end of the lifting rod (2) and covers the end cap (401). The micro switch (402), the upper limit switch (5), and the lower limit switch (6) are electrically connected to the drive mechanism (3).
2. The automatic lifting device according to claim 1, characterized in that, The lifting rod (2) is fixedly provided with a pressing block (7) for abutting against the upper limit switch (5) and the lower limit switch (6). The pressing block (7) is an integrally molded structure and is made of silicone.
3. The automatic lifting device according to claim 2, characterized in that, The housing (1) has a wiring slot (101) through which the connecting wire of the micro switch (402) passes.
4. The automatic lifting device according to claim 1, characterized in that, The drive mechanism (3) includes a motor (301) fixedly mounted on the housing (1), a drive gear (302) powered by the motor (301), and a rack (303) fixedly mounted on the lifting rod (2). The drive gear (302) meshes with the rack (303).
5. The automatic lifting device according to claim 1, characterized in that, The inner wall of the pressing surface of the end cap (403) is formed with a first boss (4031) for contacting the upper end face of the end cover (401), and a second boss (4032) is formed on the inner side of the first boss (4031) for contacting the micro switch (402).
6. The automatic lifting device according to claim 5, characterized in that, The lifting rod (2) has a cavity (201), and the end cap (401) has a plug (4012) and an inner extension (4013). The inner extension (4013) passes through the cavity (201), and the plug (4012) abuts against the end of the lifting rod (2).
7. The automatic lifting device according to claim 6, characterized in that, The inner side wall of the end cap (403) is formed with a limiting protrusion (4033) for abutting against the plug (4012), and a deformation chamber (4034) is formed on the side of the end cap (403) away from the plug (4012).
8. The automatic lifting device according to claim 7, characterized in that, The plug (4012) has a cavity (4014) formed on it. The mounting hole (4011) is located in the cavity (4014). The second boss (4032) can be deformed by the pressing surface of the end cap (403) and extend into the mounting hole (4011) and abut against the micro switch (402). The first boss (4031) can be deformed by the pressing surface of the end cap (403) and extend into the cavity (4014) and abut against the upper end surface of the cavity (4014).
9. The automatic lifting device according to claim 8, characterized in that, The mounting hole (4011) is provided with a limiting groove (4015), and the micro switch (402) is provided with a limiting protrusion (4021). The limiting protrusion (4021) abuts against the limiting groove (4015) so that the micro switch (402) is positioned in the mounting hole (4011).
10. The automatic lifting device according to claim 9, characterized in that, The end cap (403) is a one-piece molded structure and is made of silicone.