A sensor external device for electric rice cooker

Abstract

The invention provides a sensor external connection device for an electric rice cooker, comprising a mounting seat; a through hole matched with the sensor is arranged on the mounting seat, and the sensor is installed in the mounting seat through the through hole; a plurality of protrusions are evenly spaced along the circumferential direction on the outer wall of the sensor; a plurality of clamping grooves matched with the protrusions are arranged on the inner wall of the through hole; an opening for the protrusions to rotate into is arranged on the outer circumference of the top of the through hole, and the opening is communicated with the clamping groove; a limiting component matched with the protrusion is arranged in the clamping groove; a plurality of clamping components matched with the bottom end of the sensor are evenly spaced around the circumference of the through hole at the bottom of the mounting seat; the clamping component comprises a vertically arranged lifting rod and a horizontally arranged clamping piece; one end of the lifting rod is connected to the bottom end of the mounting seat, and the other end of the lifting rod is connected to one end of the clamping piece; the other end of the clamping piece extends toward the sensor; the sensor external connection device for the electric rice cooker has not only a firm and stable connection structure, but also is easy to assemble and disassemble, and has good practicality.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, in particular to a sensor external device for an electric rice cooker. Background Art

[0002] Existing external devices often use fasteners to fix the connection with the sensor, which not only has low installation efficiency but also is inconvenient to disassemble and assemble. Reinstallation after replacement or repair will reduce the firmness of the connection, which is not conducive to the stability of the overall structure. At the same time, existing external devices often use a point-to-point method to connect with the sensor, and the connection node is single, which makes it easy to loosen during use. For sensors of different specifications and lengths, external devices of different specifications are usually used for matching installation. Since the size of the existing external devices cannot be adjusted, the scope of application is single, which is not conducive to market circulation. Summary of the invention

[0003] Based on this, in order to solve the problems of complex assembly and disassembly of the existing sensor external device and poor stability of the connection structure, the present invention provides a sensor external device for an electric rice cooker, and its specific technical solution is as follows:

[0004] A sensor external device for an electric rice cooker, comprising a mounting seat; the mounting seat is provided with a through hole adapted to the sensor, and the sensor is installed in the mounting seat through the through hole; the outer wall of the sensor is provided with a plurality of protrusions evenly spaced along the circumferential direction; the inner wall of the through hole is provided with a plurality of clamping grooves adapted to the protrusions; the top outer periphery of the through hole is provided with an opening for the protrusion to rotate into, and the opening is communicated with the clamping groove; a limiting assembly adapted to the protrusion is provided in the clamping groove; the bottom of the mounting seat is provided with a plurality of clamping assemblies adapted to the bottom end of the sensor evenly spaced around the circumference of the through hole; the clamping assembly comprises a vertically arranged lifting rod and a horizontally arranged clamping member; one end of the lifting rod is connected to the bottom end of the mounting seat, and the other end of the lifting rod is connected to one end of the clamping member; the other end of the clamping member extends toward the sensor.

[0005] The sensor external device for the electric rice cooker is clamped in the clamping groove by the protrusion to achieve fixed connection between the sensor and the mounting seat, and the bottom end of the mounting seat is clamped by the clamping assembly to further improve the stability of the connection structure between the sensor and the external device, so that the sensor and the external device form a firm and stable connection structure, which is not easy to loosen during use; at the same time, the sensor can be installed by relative rotation with the mounting seat, and if disassembly is required, the disassembly can be completed by reverse rotation, which is not only simple and convenient to operate and saves time, but also multiple disassembly and assembly will not affect the stability of the connection structure; at the same time, the clamping assembly is reasonably raised and lowered according to the actual length of the sensor, so that the external device is suitable for sensors of various specifications, broadens the application range of the external device, and has good practicality.

[0006] Furthermore, an external thread is provided on the outer wall of the sensor and the external thread is provided below the protrusion; an internal thread matching the external thread is provided on the inner wall of the through hole and the internal thread is provided below the slot.

[0007] Furthermore, the limit assembly includes a limit block and a return spring; the top end of the limit block abuts against the top end of the slot, and the bottom end of the limit block is connected to the top end of the return spring; the bottom end of the return spring is connected to the bottom end of the slot.

[0008] Furthermore, the two ends of the protrusion parallel to the axis of the through hole are respectively provided with a first inclined surface and a second inclined surface; the two ends of the limit block abutting against the protrusion are respectively provided with a third inclined surface matching with the first inclined surface and a fourth inclined surface matching with the second inclined surface; the inclination angles of the first inclined surface and the third inclined surface are opposite; the inclination angles of the second inclined surface and the fourth inclined surface are opposite.

[0009] Furthermore, a plurality of slots are provided at the bottom end of the sensor; and a clamping block adapted to the slots is provided on one side of the clamping member facing the mounting seat.

[0010] Furthermore, the lifting rod includes an inner rod, an outer rod, a connecting shaft, a torsion spring and a pull rope; the inner rod is sleeved in the outer rod and slidably connected along the axial direction of the outer rod; the connecting shaft is arranged in the outer rod and is located above the inner rod; the two ends of the connecting shaft are respectively connected to the two side walls of the outer rod and the torsion spring and the pull rope are sleeved on the connecting shaft; one end of the torsion spring is connected to the top end of the outer rod, and the other end of the torsion spring is connected to one end of the pull rope; the other end of the pull rope is connected to the top end of the inner rod.

[0011] Furthermore, a groove adapted to the outer rod is provided at the bottom end of the mounting seat; the outer rod is arranged in the groove and the cross-section of the outer rod is rectangular; first clamping grooves are provided on both side surfaces of the outer rod parallel to the axial direction of the clamping member; the groove is provided with a convex portion adapted to the first clamping groove, and the convex portion is clamped in the first clamping groove.

[0012] Furthermore, second clamping grooves are provided on both side surfaces of the outer rod that are perpendicular to the axial direction of the clamping piece; the groove is provided with a memory spring that is adapted to the second clamping groove; one end of the memory spring is connected to the bottom end of the second clamping groove, and the other memory end of the spring is connected to the inner wall of the groove.

[0013] Furthermore, the memory spring is a CuZnAl memory alloy spring.

[0014] Furthermore, there are two groups of the clamping components, which are symmetrically arranged along the radial direction of the through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0016] Figure 1 It is a schematic diagram of the installation structure of a sensor external device for an electric rice cooker in one embodiment of the present invention;

[0017] Figure 2 It is a structural schematic diagram of a sensor of a sensor external device for an electric rice cooker in one embodiment of the present invention;

[0018] Figure 3 It is a structural schematic diagram of a mounting base of a sensor external device for an electric rice cooker in one embodiment of the present invention;

[0019] Figure 4 It is a structural schematic diagram of a protrusion of a sensor external device for an electric rice cooker in one embodiment of the present invention;

[0020] Figure 5 It is a structural schematic diagram of a card slot and a limit assembly of a sensor external device for an electric rice cooker in one embodiment of the present invention;

[0021] Figure 6 It is a structural schematic diagram of a clamping assembly of a sensor external device for an electric rice cooker in one embodiment of the present invention;

[0022] Figure 7It is a schematic diagram of the installation structure of a clamping assembly and a memory spring of a sensor external device for an electric rice cooker in one embodiment of the present invention;

[0023] Figure 8 It is a schematic diagram of the installation structure of a clamping assembly and a protrusion of a sensor external device for an electric rice cooker in one embodiment of the present invention;

[0024] Fig. 9 The present invention is a schematic structural diagram of a sensor section of an external sensor device for an electric rice cooker in one embodiment of the present invention.

[0025] Explanation of the accompanying drawings: 1. mounting base; 2. sensor; 3. through hole; 4. protrusion; 5. slot; 6. opening; 7. lifting rod; 8. snap-fitting piece; 9. external thread; 10. internal thread; 11. limit block; 12. reset spring; 13. slot; 14. snap-fitting block; 15. inner rod; 16. outer rod; 17. torsion spring; 18. pull rope; 19. connecting shaft; 20. first snap-fitting slot; 21. protrusion; 22. second snap-fitting slot; 23. memory spring; 24. first inclined plane; 25. second inclined plane; 26. third inclined plane; 27. fourth inclined plane. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the protection scope of the present invention.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0030] like Figure 1 — Fig. 9As shown, a sensor 2 external device for an electric rice cooker in one embodiment of the present invention comprises a mounting base 1; a through hole 3 adapted to the sensor 2 is provided on the mounting base 1, and the sensor 2 is installed in the mounting base 1 through the through hole 3; a plurality of protrusions 4 are evenly spaced on the outer wall of the sensor 2 along the circumferential direction; a plurality of slots 5 adapted to the protrusions 4 are provided on the inner wall of the through hole 3; an opening 6 for the protrusion 4 to be rotated into is provided on the outer periphery of the top of the through hole 3, and the opening 6 is communicated with the slot 5; a limiting assembly adapted to the protrusion 4 is provided in the slot 5; a plurality of clamping assemblies adapted to the bottom end of the sensor 2 are evenly spaced around the circumference of the through hole 3 at the bottom of the mounting base 1; the clamping assembly comprises a vertically arranged lifting rod 7 and a horizontally arranged clamping member 8; one end of the lifting rod 7 is connected to the bottom end of the mounting base 1, and the other end of the lifting rod 7 is connected to one end of the clamping member 8; the other end of the clamping member 8 extends toward the sensor 2.

[0031] The sensor 2 external device for the above-mentioned rice cooker is clamped in the clamping groove 5 through the protrusion 4 to achieve a fixed connection between the sensor 2 and the mounting base 1, and the bottom end of the mounting base 1 is clamped by the clamping assembly to further improve the stability of the connection structure between the sensor 2 and the external device, so that the sensor 2 and the external device form a firm and stable connection structure, which is not easy to loosen during use; at the same time, the sensor 2 can be installed by relative rotation with the mounting base 1. If disassembly is required, the disassembly can be completed by reverse rotation. Not only is the operation simple and convenient, and time-saving, but multiple disassembly and assembly will not affect the stability of the connection structure; at the same time, the clamping assembly is reasonably raised and lowered according to the actual length of the sensor 2, so that the external device is suitable for sensors 2 of various specifications, which broadens the scope of application of the external device and has good practicality.

[0032] Specifically, the sensor 2 is inserted into the mounting base 1 through the through hole 3; the notch of the card slot 5 is toward the center of the through hole 3, and the sensor 2 is rotated so that the protrusion 4 is transferred into the card slot 5 through the opening 6 and is limitedly connected to the card slot 5 by the limiting assembly. At the same time, the clamping assembly is reasonably adjusted according to the actual length of the sensor 2 so that the card connector 8 is clamped with the bottom end of the sensor 2, thereby forming a firm and stable mounting structure.

[0033] In one embodiment, the outer wall of the sensor 2 is further provided with an external thread 9 and the external thread 9 is arranged below the protrusion 4; the inner wall of the through hole 3 is provided with an internal thread 10 adapted to the external thread 9 and the internal thread 10 is arranged below the slot 5.

[0034] Specifically, the sensor 2 is threadedly connected to the mounting base 1, thereby further improving the stability of the overall connection structure.

[0035] In one embodiment, the limit assembly includes a limit block 11 and a return spring 12; the top end of the limit block 11 abuts against the top end of the slot 5, and the bottom end of the limit block 11 is connected to the top end of the return spring 12; the bottom end of the return spring 12 is connected to the bottom end of the slot 5.

[0036] In one embodiment, the two ends of the protrusion 4 parallel to the axis of the through hole 3 are respectively provided with a first inclined surface 24 and a second inclined surface 25; the two ends of the limit block 11 abutting against the protrusion 4 are respectively provided with a third inclined surface 26 matching with the first inclined surface 24 and a fourth inclined surface 27 matching with the second inclined surface 25; the inclination angles of the first inclined surface 24 and the third inclined surface 26 are opposite; the inclination angles of the second inclined surface 25 and the fourth inclined surface 27 are opposite.

[0037] Specifically, the first inclined surface 24 and the second inclined surface 25 are both inclined from top to bottom toward the center of the protrusion 4; the card slot 5 is provided with a sliding-in area, a limiting area and a clamping area in sequence along the rotation direction of the sensor 2; the opening 6 is provided at the top of the sliding-in area; the limiting block 11 is provided in the limiting area and a buffer cavity is provided at the bottom of the limiting area; the top of the limiting block 11 abuts against the top of the card slot 5, and the bottom of the limiting block 11 is provided in the buffer cavity; at the same time, the reset spring 12 is also provided in the buffer cavity;

[0038] During installation, the sensor 2 is rotated so that the protrusion 4 on the sensor 2 slides into the slot 5 through the opening 6 and abuts against the limit block 11; the first inclined surface 24 applies a lateral thrust and a vertical pressure to the third inclined surface 26, and the reset spring 12 contracts under the action of the pressure and drives the limit block 11 to descend; the protrusion 4 slides into the clamping area through the gap between the limit block 11 and the slot 5 and is clamped in the slot 5; at this time, the limit block 11 is reset under the restoring force of the reset spring 12, and the protrusion 4 is limited in the clamping area, thereby realizing the clamping structure of the protrusion 4 and the slot 5;

[0039] To disassemble, just repeat the above steps in reverse.

[0040] In one embodiment, a plurality of slots 13 are provided at the bottom end of the sensor 2 ; and a clamping block 14 adapted to the slots 13 is provided on a side of the clamping member 8 facing the mounting base 1 .

[0041] Specifically, the clamping block 14 is clamped in the slot 13, so that the clamping member 8 is fixedly connected to the bottom end of the sensor 2, thereby further improving the stability of the installation structure.

[0042] In one embodiment, the lifting rod 7 includes an inner rod 15, an outer rod 16, a connecting shaft 19, a torsion spring 17 and a pull rope 18; the inner rod 15 is sleeved in the outer rod 16 and slidably connected along the axial direction of the outer rod 16; the connecting shaft 19 is arranged in the outer rod 16 and is located above the inner rod 15; the two ends of the connecting shaft 19 are respectively connected to the two side walls of the outer rod 16 and the torsion spring 17 and the pull rope 18 are sleeved on the connecting shaft 19; one end of the torsion spring 17 is connected to the top end of the outer rod 16, and the other end of the torsion spring 17 is connected to one end of the pull rope 18; the other end of the pull rope 18 is connected to the top end of the inner rod 15.

[0043] Specifically, the top end of the outer rod 16 is connected to the bottom end of the mounting seat 1; the bottom end of the inner rod 15 is connected to the clamping member 8;

[0044] When in use, the inner rod 15 slides downward along the axial direction of the outer rod 16 under the action of the downward pulling force, and the inner rod 15 drives the pull rope 18 to pull down and drives one end of the torsion spring 17 to rotate;

[0045] When the lifting rod 7 is adjusted to a suitable height, the inner rod 15 is released, the downward pulling force disappears, and the pull rope 18 rotates under the restoring force of the torsion spring 17 and drives the inner rod 15 to rise, so that the clamping member 8 and the bottom end of the sensor 2 form a firm clamping structure.

[0046] In one embodiment, the bottom end of the mounting seat 1 is provided with a groove adapted to the outer rod 16; the outer rod 16 is arranged in the groove and the cross-section of the outer rod 16 is rectangular; the outer rod 16 is provided with a first clamping groove 20 on both side surfaces parallel to the axial direction of the clamping member 8; the groove is provided with a convex portion 21 adapted to the first clamping groove 20, and the convex portion 21 is clamped in the first clamping groove 20.

[0047] In one of the embodiments, the outer rod 16 is provided with a second locking groove 22 on both side surfaces perpendicular to the axial direction of the clamping member 8; the groove is provided with a memory spring 23 adapted to the second locking groove 22; one end of the memory spring 23 is connected to the bottom end of the second locking groove 22, and the other memory end of the spring is connected to the inner wall of the groove.

[0048] In one embodiment, the first locking groove 20 and the second locking groove 22 are located on the same horizontal plane.

[0049] Specifically, the outer rod 16 is clamped in the first clamping groove 20 through the protrusion 4, and the memory spring 23 is clamped in the second clamping groove 22, so as to realize the fixed connection between the outer rod 16 and the mounting seat 1; at the same time, through the above connection method, no matter which direction the impact force is received, the connection node can effectively buffer, thereby improving the stability of the overall structure of the clamping assembly;

[0050] Since the protrusion 4 and the first clamping groove 20 are connected in a point-to-point manner, when subjected to external force, the outer rod 16 can slightly shake along the axial direction of the clamping member 8 under the clamping action of the protrusion 4; at the same time, the memory spring 23 has a telescopic function, and when subjected to external force, the memory spring 23 is compressed or stretched along the axial direction of the clamping member 8; through the above-mentioned arrangement, the clamping assembly has a certain adjustment angle, which is convenient for implementing the clamping process of the bottom end of the mounting seat 1.

[0051] In one embodiment, the memory spring 23 is a CuZnAl memory alloy spring.

[0052] Specifically, the memory spring 23 has the characteristic of elongating when heated; when the temperature inside the rice cooker rises, the memory spring 23 elongates when heated, thereby clamping the lifting rod 7 more stably in the groove and cushioning the shaking of the lifting rod 7, thereby improving the stability of the connection structure of the clamping assembly.

[0053] In one embodiment, there are two groups of clamping components and they are symmetrically arranged along the radial direction of the through hole 3 .

[0054] Specifically, the two groups of clamping assemblies that are symmetrically arranged ensure that the forces on both sides of the sensor 2 are balanced and consistent.

[0055] The specific process is as follows:

[0056] During installation, the sensor 2 is inserted into the through hole 3; the sensor 2 is rotated so that the outer wall of the sensor 2 is threadedly connected with the inner wall of the through hole 3 and the protrusion 4 is clamped in the clamping groove 5, thereby forming a stable connection structure; the size of the clamping assembly is adjusted so that the clamping block 14 is clamped in the slot 13, thereby further improving the stability of the connection structure;

[0057] To disassemble, just repeat the above steps in reverse.

[0058] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A sensor external device for an electric rice cooker, characterized in that: Includes mount; The mounting seat is provided with a through hole adapted to the sensor, and the sensor is mounted in the mounting seat through the through hole; The outer wall of the sensor is provided with a plurality of protrusions evenly spaced along the circumferential direction; The inner wall of the through hole is provided with a plurality of slots adapted to the protrusions; An opening is provided on the top periphery of the through hole for the projection to rotate into, and the opening is communicated with the card slot; A limiting component adapted to the protrusion is provided in the card slot; The bottom of the mounting seat is evenly spaced around the circumference of the through hole and is provided with a plurality of clamping components adapted to the bottom end of the sensor; The clamping assembly includes a vertically arranged lifting rod and a horizontally arranged clamping member; One end of the lifting rod is connected to the bottom end of the mounting seat, and the other end of the lifting rod is connected to one end of the clamping member; The other end of the clamp extends toward the sensor; The outer wall of the sensor is also provided with an external thread, and the external thread is arranged below the protrusion; the inner wall of the through hole is provided with an internal thread adapted to the external thread, and the internal thread is arranged below the slot; the limit assembly includes a limit block and a return spring; the top of the limit block abuts against the top of the slot, and the bottom of the limit block is connected to the top of the return spring; the bottom of the return spring is connected to the bottom of the slot; the two ends of the protrusion parallel to the axis of the through hole are respectively provided with a first inclined surface and a second inclined surface; the limit block and the The two ends of the protrusion abutting against each other are respectively provided with a third inclined surface matched with the first inclined surface and a fourth inclined surface matched with the second inclined surface; the first inclined surface and the third inclined surface have opposite inclination angles; the second inclined surface and the fourth inclined surface have opposite inclination angles; a plurality of slots are provided at the bottom end of the sensor; a clamping block matched with the slots is provided on the side of the clamping member facing the mounting seat; the lifting rod comprises an inner rod, an outer rod, a connecting shaft, a torsion spring and a pull rope; the inner rod is sleeved in the outer rod and connected to the outer rod by sliding along the axial direction; the connecting shaft The connecting shaft is provided in the outer rod and above the inner rod; the two ends of the connecting shaft are respectively connected to the two side walls of the outer rod and the connecting shaft is sleeved with the torsion spring and the pull rope; one end of the torsion spring is connected to the top of the outer rod, and the other end of the torsion spring is connected to one end of the pull rope; the other end of the pull rope is connected to the top of the inner rod; the bottom end of the mounting seat is provided with a groove adapted to the outer rod; the outer rod is provided in the groove and the cross section of the outer rod is rectangular; the outer rod is provided with a plurality of grooves on both side surfaces parallel to the axial direction of the clamping member. There is a first clamping groove; the groove is provided with a convex part adapted to the first clamping groove, and the convex part is clamped in the first clamping groove; the outer rod is provided with a second clamping groove on both side surfaces perpendicular to the axial direction of the clamping part; the groove is provided with a memory spring adapted to the second clamping groove; one end of the memory spring is connected to the bottom end of the second clamping groove, and the other memory end of the spring is connected to the inner side wall of the groove; the memory spring is a CuZnAl memory alloy spring; the clamping assembly has two groups and is symmetrically arranged along the radial direction of the through hole.

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