CN211582869U - Electric heating towel rack - Google Patents

Abstract

The utility model relates to an electric heating towel rack relates to articles for daily use's technical field, has solved wet towel and has placed after on electric heating towel rack, needs the user to generate heat the line ohmic heating through on-off control, complex operation's problem, and it includes: the device comprises a frame body, a heating wire, a controller and a shielding induction device, wherein the shielding induction device is arranged on the frame body and is used for detecting whether an object is placed on the frame body and converting the object into an object detection signal; the controller includes a control device coupled to the shielding sensing device to receive the object detection signal and output a control signal to the heating wire. The utility model discloses having the automation that has realized electric heat towel rail and opening and the control is violently managed the temperature on surface and be difficult for too high, making the towel difficult to be burnt out when drying, the electric wire in the control box is difficult for the hank absolutely when the simultaneous control box is installed on electric heat towel rail, makes things convenient for controller and equipment separately to pack the transportation, and occupation space is little, is difficult because of the collision damages, still makes things convenient for controller later stage and equipment to carry out the effect that the dismouting was changed and was maintained.

Description

Electric heating towel rack

Technical Field

The utility model belongs to the technical field of articles for daily use's technique and specifically relates to an electric heat towel rail is related to.

Background

The electric heating towel rack is a common bathroom hanging part, is used for hanging towels, clothes and the like, and can dry the towels, the clothes and the like, so that the towels, the clothes and the like are not easy to breed a large amount of harmful bacteria such as mildew, bacteria, mites and the like due to humidity, and the musty smell and the moisture of a bathroom can be removed.

The existing electric heating towel rack comprises a rack body and a controller arranged on the rack body, wherein the rack body comprises two vertical pipes which are parallel to each other, transverse pipes which are arranged between the vertical pipes at intervals along the length direction of the vertical pipes, and heating wires which penetrate through the transverse pipes and the vertical pipes.

The above prior art solutions have the following drawbacks: after the wet towel is placed on the electric heating towel rack, a user needs to control the heating wire to be electrified and heated through a switch, the operation is complicated, and an improved space is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electric heating towel rack, which realizes the automatic opening of the electric heating towel rack.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

an electric heating towel rack comprises a rack body, a heating wire, a controller and a shielding sensing device, wherein the rack body penetrates through the rack body, the controller is arranged on the rack body, and the shielding sensing device is arranged on the rack body and is used for detecting whether an object is placed on the rack body and converting the object into an object detection signal;

the controller includes a first control device coupled to the shielding sensing device to receive the object detection signal and output a first control signal to the heating wire.

By adopting the technical scheme, the shielding sensing device detects whether a towel is placed on the electric heating towel rack, if the towel is placed on the electric heating towel rack, the shielding sensing device outputs a high level, and the control device controls the heating wire to be electrified to start heating; otherwise, the heating wire is not heated.

The utility model discloses further set up to: the controller comprises a control box, wherein a round pipe is integrally arranged on the outer side wall of the control box, an inner nut which is rotatably connected with the round pipe is sleeved on the round pipe, an inner convex ring is integrally arranged at one end, close to the control box, of the inner nut, and a limiting ring which is abutted to and limited by the inner convex ring is arranged at one end, far away from the control box, of the round pipe;

one side of the inner nut, which is close to the frame body, is in threaded connection with a first outer threaded pipe connected with the frame body.

By adopting the technical scheme, the inner nut is sleeved on the round pipe and is rotationally connected with the round pipe, and the inner nut cannot be separated from the round pipe through the abutting limit of the limit ring and the inner convex ring; the control box is connected with the first external threaded pipe through the inner nut and is arranged on the equipment in a threaded manner, so that the control box is not easy to rotate relative to the equipment when the control box is installed, the electric wire in the control box is not easy to twist and break due to winding, and the safety of the control box during installation is improved; the control box is detachably connected with the electric heating towel rack, so that the rack body and the controller are separately packaged and transported when the electric heating towel rack is transported, and the controller is not easy to damage due to collision during transportation.

The utility model discloses further set up to: the frame body comprises two vertical pipes which are parallel to each other and transverse pipes which are arranged between the two vertical pipes and are arranged at intervals along the length direction of the vertical pipes;

one end of the first external threaded pipe, which is close to the frame body, is integrally provided with a second external threaded pipe which is arranged on the frame body in a penetrating way and is in threaded connection with one end of the vertical pipe;

and a reinforcing sleeve in threaded connection with the second external threaded pipe is embedded in the vertical pipe.

By adopting the technical scheme, the first external thread pipe is connected to the vertical pipe through the second external thread pipe, so that the structure is simple, the disassembly and the assembly are convenient, and the practicability is high; in the reinforced cover inlays and locates the standpipe, reinforced cover threaded connection is in order to increase the length of being connected of second external thread pipe and standpipe on the second external thread pipe, makes first external thread pipe be connected more firmly with the support body, and difficult and support body emergence is relative not hard up.

The utility model discloses further set up to: the inner nut is provided with a plurality of ratchets uniformly arranged along the circumferential direction on the inner circumferential wall close to the equipment, a separating ring is integrally arranged at one end of the first outer threaded pipe close to the second outer threaded pipe, and a non-return claw matched with the ratchets is integrally arranged on the separating ring.

Through adopting above-mentioned technical scheme, when the internal thread cap was installed on first external screw thread pipe, non return claw and ratchet intermeshing to make internal thread cap difficult take place to become flexible with first external screw thread pipe, improved the fastness of internal thread cap and first external screw thread union coupling.

The utility model discloses further set up to: a female plug is arranged in the first external thread pipe in a penetrating manner, and a male plug matched with the female plug is inserted in the second external thread pipe;

the limiting ring is also integrally provided with a first insulating sleeve penetrating through the first external threaded pipe, and the insert nut is inserted into the first insulating sleeve;

and a second insulating sleeve is inserted in the second external thread pipe, and the male plug is inserted in the second insulating sleeve.

By adopting the technical scheme, the combination of the male plug and the female plug enables equipment to be connected with the male plug through wires, and the female plug can be connected with a PCB of the control box through wires, so that the controller and the equipment can be conveniently plugged, assembled and used, and the convenience for connecting the controller and the equipment is improved; meanwhile, after the controller is damaged, the user can conveniently disassemble, assemble and replace the controller; the arrangement of the first insulating sleeve protects the joint of the male plug and the female plug, so that the current at the joint of the male plug and the female plug is not easy to leak, and the safety of the joint of the male plug and the female plug is improved; the second insulating sleeve protects the male plug, so that the current at the male plug is not easy to leak, and the safety of the male plug is improved.

The utility model discloses further set up to: the second external thread pipe is kept away from integrative being equipped with two at least joint pieces on the internal perisporium of first external thread pipe, set up the joint hole that supplies joint piece joint on the second insulating boot.

Through adopting above-mentioned technical scheme, the second insulation cover is further fixed through the joint in joint piece and joint hole, has improved the fastness that the second insulation cover is connected with the outer screwed pipe of second, makes the insulating cover of second difficult and the outer screwed pipe of second take place relative slip when using.

The utility model discloses further set up to: one side of the limiting ring away from the first external threaded pipe is integrally provided with a connecting pipe which is concentrically arranged with the limiting ring and is connected with the internal thread of the round pipe.

Through adopting above-mentioned technical scheme, the spacing ring passes through the threaded connection of connecting pipe and can dismantle to be connected on the pipe, simple structure, easy dismounting, the practicality is strong.

The utility model discloses further set up to: the first temperature sensor is arranged on the transverse pipe and used for detecting the temperature of the transverse pipe and converting the temperature into a transverse pipe temperature detection signal;

the controller further comprises a first comparison device coupled to the first temperature sensor to receive the transverse pipe temperature detection signal and output a comparison signal, a first reference device coupled to the first comparison device to provide the first reference signal for the first comparison device, and an AND gate logic circuit coupled to the first comparison device and the shielding sensing device to receive the comparison signal and the object detection signal and output a logic control signal to the first control device.

Through adopting above-mentioned technical scheme, first temperature sensor detects the temperature of violently managing the surface, and when violently managing surface temperature and being greater than the interior first reference signal who predetermines of controller, first comparator output low level, and AND gate logic circuit output low level, then control the line outage that generates heat and stop heating, make the temperature of violently managing the surface be difficult for too high, make the towel difficult burnt out when drying.

The utility model discloses further set up to: the second temperature sensor is arranged at one end of the vertical pipe and used for detecting the ambient temperature and converting the ambient temperature into an ambient temperature detection signal;

the controller further includes a second comparing device coupled to the second temperature sensor for receiving the ambient temperature detection signal and outputting a second comparison signal, a second reference device coupled to the second comparing device for providing a second reference signal to the second comparing device, a second control device coupled to the second comparing device for receiving the second comparison signal and outputting a second control signal, and a power adjusting device coupled to the second control device for receiving the second control signal and responding to the second control signal.

Through adopting above-mentioned technical scheme, detect the ambient temperature near the standpipe, along with the rising of the near ambient temperature of standpipe, the power through the second controlling means control heating wire in the controller is down-regulated, makes the temperature on violently managing the surface be difficult for too high, makes the towel be difficult for being burnt out when drying.

The utility model discloses further set up to: a mounting seat is further fixed to one end of the vertical pipe through a screw, a through hole for the second temperature sensor to penetrate through is formed in the mounting seat, and at least two clamping pieces evenly arranged along the circumferential direction of the through hole are integrally arranged on the inner circumferential wall of the through hole;

one side that the standpipe was kept away from to the mount pad is equipped with the protection casing, one side an organic whole that the standpipe was kept away from to the mount pad is equipped with two at least fixture blocks, the joint groove that supplies joint piece joint is seted up to one side that the protection casing is close to the mount pad.

By adopting the technical scheme, the second temperature sensor is arranged in the through hole in a penetrating mode and is clamped and fixed through the clamping piece, the structure is simple, and the assembly and disassembly are convenient; the second temperature sensor is protected by the protective cover, so that the second temperature sensor is not easily damaged by extrusion when the electric heating towel rack is used and transported, and the safety of the second temperature sensor in use is improved.

To sum up, the utility model discloses a beneficial technological effect does:

1. the automatic opening of the electric heating towel rack is realized, and meanwhile, the surface temperature of the horizontal tube is controlled not to be too high easily, so that the towel is not easy to burn out during drying;

2. the control box is not easy to rotate relative to the equipment when being installed, so that the electric wire in the control box is not easy to twist and break due to winding, and the safety of the control box during installation is improved;

3. insert public and the combination setting of inserting female, make things convenient for controller and equipment to carry out the equipment of pegging graft and use, improved the convenience that controller and equipment are connected, make things convenient for the controller to damage the back simultaneously and carry out dismouting maintenance or change.

Drawings

Fig. 1 is an exploded view of an electric towel rack according to one embodiment.

Fig. 2 is an enlarged view of a portion a in fig. 1.

FIG. 3 is a partial cross-sectional view of the control box, the round tube, the inner nut, the first outer threaded tube, and the standpipe according to one embodiment.

FIG. 4 is an exploded view of an inner nut, a first outer threaded tube, and a second insulating tube according to one embodiment.

Fig. 5 is an enlarged view of a portion B in fig. 4.

Fig. 6 is an enlarged view of a portion C in fig. 4.

Fig. 7 is an enlarged view of a portion D in fig. 4.

Fig. 8 is a circuit connection diagram of the shield sensing device, the first control device, and the heating wire.

FIG. 9 is a schematic diagram of a partial explosion of the standpipe and the mounting base, the second temperature sensor, and the shield according to the second embodiment.

Fig. 10 is an exploded view of the mount, the second temperature sensor, and the protective cover according to the second embodiment.

Fig. 11 is a circuit connection diagram of the first temperature sensor, the first comparing device, the first reference device, the shielding sensing device, the and gate logic circuit, the first control device, the second temperature sensor, the second comparing device, the second reference device, the second control device, the power adjusting device, and the heat generating line in the second embodiment.

In the figure, 1, a frame body; 11. a vertical tube; 111. reinforcing the sleeve; 112. closing the plate; 12. a transverse tube; 2. a controller; 21. a shielding sensing device; 22. a control device; 23. a control box; 231. a circular tube; 24. a first comparing means; 25. a first reference device; 26. an AND gate logic circuit; 3. an inner nut; 31. an inner collar; 32. a ratchet; 4. a limiting ring; 41. a first insulating sleeve; 42. a connecting pipe; 5. a first externally threaded tube; 51. a second externally threaded pipe; 511. a second insulating sleeve; 5111. a clamping hole; 512. a clamping block; 52. a spacer ring; 521. a non-return claw; 6. inserting a female; 7. inserting a male pin; 8. a first temperature sensor; 9. a second temperature sensor; 10. a mounting seat; 101. perforating holes; 102. a clamping piece; 103. a clamping block; 104. a protective cover; 1041. a clamping groove; 1042. and a communicating hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 1 and 2, an electric towel rack comprises a rack body 1, a controller 2, a first external thread pipe 5, a circular pipe 231, a heating wire and an internal nut 3.

The frame body 1 consists of two vertical pipes 11 and at least one horizontal pipe 12, wherein the vertical pipes 11 and the horizontal pipe 12 can be square pipes, round pipes 231 and regular hexagonal pipes; two standpipe 11 are parallel to each other, and violently pipe 12 is located between two standpipe 11, and the inner chamber of violently pipe 12 communicates with each other with the inner chamber of standpipe 11, and many violently pipes 12 are interval parallel arrangement, and the heater wire is worn to locate in violently pipe 12 and standpipe 11.

Referring to fig. 3, the controller 2 includes a control box 23, a circular tube 231 is integrally disposed on one side of the control box 23 close to the frame body 1, and an inner cavity of the circular tube 231 is communicated with an inner cavity of the control box 23; the inner nut 3 is sleeved on the round tube 231 and is rotationally connected with the round tube 231, the inner peripheral wall of the inner nut 3 close to the control box 23 is integrally provided with an inner collar 31, the end face of the round tube 231 far away from the control box 23 is provided with a limit ring 4, and the limit ring 4 and the inner collar 31 are mutually abutted and limited, so that the inner nut 3 is not easy to fall off from the round tube 231.

The spacing ring 4 can be dismantled with the pipe 231 and be connected, and one side an organic whole that the spacing ring 4 is close to the pipe 231 is equipped with the connecting pipe 42 that is concentric setting with the spacing ring 4, offers screw thread on the connecting pipe 42 periphery wall in order to connect on the pipe 231 with the spacing ring 4 is dismantled.

The first external threaded pipe 5 is in threaded connection with the internal nut 3, a second external threaded pipe 51 is integrally arranged at one end, far away from the control, of the first external threaded pipe 5, the second external threaded pipe 51 penetrates through the frame body 1 and is in threaded connection with the frame body 1, and the second external threaded pipe 51 can be in threaded connection with the side wall of the transverse pipe 12 or the vertical pipe 11; the closing plates 112 are welded to both ends of the vertical pipe 11, and the second externally threaded pipe 51 may be screwed to the side wall of the vertical pipe 11, or may be screwed to the closing plates 112, where the second externally threaded pipe 51 is preferably screwed to the closing plate 112 at the lower end of one vertical pipe 11, so as to mount the second externally threaded pipe 51 to one vertical pipe 11 of the rack body 1.

A reinforcing sleeve 111 in threaded connection with the second external threaded pipe 51 is embedded in the vertical pipe 11, and the connecting length of the second external threaded pipe 51 and the vertical pipe 11 is increased by the reinforcing sleeve 111, so that the second external threaded pipe 51 is connected with the vertical pipe 11 of the frame body 1 more firmly; when the installation is carried out, the second external threaded pipe 51 is firstly arranged on the closing plate 112 in a penetrating way, then the reinforcing sleeve 111 is arranged on the second external threaded pipe 51, and then the closing plate 112 is welded at one end of the vertical pipe 11; the reinforcing sleeve 111 can also be integrally arranged with the closing plate 112, and only the reinforcing sleeve 111 needs to be welded on the closing plate 112 during installation, and then the closing plate 112 is welded at one end of the vertical tube 11, so that the reinforcing sleeve 111 is embedded in the vertical tube 11.

The second insulating sleeve 511 is inserted in the second external thread pipe 51, the male plug 7 is inserted in the second insulating sleeve 511, the male plug 7 is in interference fit with the second insulating sleeve 511, the male plug 7 is connected with a wire of equipment during use, and the second insulating sleeve 511 is used for protecting the male plug 7, so that a user is not easy to get an electric shock during use and maintenance of the controller 2.

A first insulating sleeve 41 is integrally arranged on one side, away from the circular tube 231, of the limiting ring 4, an insert nut 6 is inserted in the first insulating sleeve 41, the insert nut 6 is in interference fit with the first insulating sleeve 41, the insert nut 6 is connected with a PCB (printed circuit board) wire of the controller 2 in use, and the first insulating sleeve 41 is used for protecting the insert nut 6, so that a user is not easy to get an electric shock when using and maintaining the controller 2; the male plug 7 is plugged with the female plug 6 so that the controller 2 is connected with a heating wire and an electrical element in the electric heating towel rack.

Referring to fig. 4 and 5, a plurality of ratchet teeth 32 uniformly distributed along the circumferential direction are integrally formed on the inner circumferential wall of the inner nut 3 close to the first outer threaded pipe 5, and in combination with fig. 6, an outer convex ring is integrally formed at one end of the second outer threaded pipe 51 close to the first outer threaded pipe 5, and a check pawl 521 matched with the ratchet teeth 32 is integrally formed on the outer circumferential wall of the outer convex ring; when the inner nut 3 is rotatably mounted on the first outer threaded pipe 5, the check pawl 521 is engaged with the ratchet teeth 32 to make the inner nut 3 difficult to rotate in the opposite direction to the first outer threaded pipe 5, and thus the inner nut 3 is difficult to loosen from the first outer threaded pipe 5; the reverse direction here refers to a direction opposite to the mounting direction of the inner nut 3.

Referring to fig. 4 and 7, at least one clamping block 512 is integrally arranged at the upper end of the second externally threaded pipe 51, where the number of the clamping blocks 512 is four, and the clamping blocks 512 are arranged on the inner peripheral wall of the second externally threaded pipe 51; the second insulating sleeve 511 is provided with a clamping hole 5111, and the clamping hole 5111 is used for clamping the clamping block 512, so that the second insulating sleeve 511 is not easy to slide relative to the second externally threaded pipe 51.

Referring to fig. 8, the controller 2 further includes a shielding sensing device 21 and a control device 22, wherein the shielding sensing device 21 and the first control device 22 are integrated on a PCB board in the control box 23; the shielding sensing device 21 is mounted on the horizontal tube 12 and used for detecting whether a towel is placed on the horizontal tube 12 and converting the towel into an object detection signal, and the first control device 22 is coupled to the shielding sensing device 21 for receiving the object detection signal and outputting a first control signal to the heating wire.

The shielding induction device 21 can be an infrared shielding inductor or a proximity switch; the first control device comprises a triode Q1, a capacitor C1, a resistor R2, a resistor R3 and a relay K1; the resistance value of the resistor R2 is 1.5K omega; the resistance value of the resistor R3 is 1K omega, the resistance value of the capacitor C1 is 800pF, the model of the relay K1 is PQ1A-3V, the model of the triode Q1 is an NPN type triode and is 2SC4019, and the conduction threshold value of the triode is 0.7V; here, relay K1 may also be replaced with a thyristor.

The shielding induction device 21 is connected with the other end of the resistor R2 and the other end of the capacitor C1, the base electrode of the triode Q1 is respectively connected with one end of the resistor R2, one end of the resistor R3 and one end of the capacitor C1, and the other end of the resistor R3 is respectively connected with the emitter of the triode Q1 and the ground GND; one end of the relay K1 is connected with the collector of the triode Q1, and the other end of the relay K1 is connected with a power supply VCC; one end of the normally open contact of the relay K1 is connected with one end of the 220V alternating current, the other end of the normally open contact of the relay K1 is connected with the heating wire, and the other end of the heating wire is connected with the other end of the 220V alternating current.

When the shielding induction device 21 induces that the towel is placed on the transverse pipe 12, the shielding induction device 21 outputs a high level, the triode Q1 is conducted, the relay K1 is electrified, the normally open contact K1-1 of the relay K1 is closed, and the heating wire starts to heat; on the contrary, the shielding induction device 21 outputs low level, the triode Q1 is not conducted, the relay K1 is not electrified, the normally open contact K1-1 of the relay K1 is disconnected, and the heating wire starts not to be heated.

Example two:

referring to fig. 1 and 9, the difference from the first embodiment is that a first temperature sensor 8, a second temperature sensor 9, a mounting seat 10 and a protective cover 104 are further included.

The first temperature sensor 8 is mounted on the cross tube 12, and the first temperature sensor 8 is used for detecting the temperature of the surface of the cross tube 12.

Referring to fig. 9 and 10, the lower end of another vertical pipe 11 is provided with a second temperature sensor 9, and the second temperature sensor 9 is used for detecting the ambient temperature near the vertical pipe 11; the closing plate 112 at the lower end of the other vertical tube 11 is fixed with the mounting seat 10 by screws, a through hole 101 for the second temperature sensor 9 to pass through is formed in the mounting seat 10, at least two clamping pieces 102 uniformly distributed along the circumferential direction are integrally arranged on the inner circumferential wall of the through hole 101, and the clamping pieces 102 are used for clamping and fixing the second temperature sensor 9 through elastic deformation.

A protective cover 104 is arranged on one side of the mounting seat 10 far away from the vertical pipe 11, the protective cover 104 is used for protecting the second temperature sensor 9, and a plurality of communicating holes 1042 communicated with the outside are formed in one side of the protective cover 104 far away from the mounting seat 10; one side an organic whole that the standpipe 11 was kept away from to mount pad 10 is equipped with two at least fixture blocks 103 that are back of the body and set up mutually, has seted up joint groove 1041 on the inside wall of protection casing 104, and joint groove 1041 supplies fixture block 103 joint to with protection casing 104 demountable connection on mount pad 10.

With reference to fig. 11, the controller 2 further comprises first comparing means 24, first reference means 25, and-gate logic 26, second comparing means 27, second reference means 271, second control means 28 and power regulating means 29; the first comparing means 24, the first reference means 25, the and gate logic circuit 26, the second comparing means 27, the second reference means 271, the second control means 28 and the power regulating means 29 are all integrated on a PCB board within the control box 23.

The first temperature sensor 8 is used for detecting the temperature of the horizontal tube 12 and converting the temperature into a temperature detection signal of the horizontal tube 12, the first comparison device 24 is coupled to the first temperature sensor 8 for receiving the temperature detection signal of the horizontal tube 12 and outputting a comparison signal, the first reference device 25 is coupled to the first comparison device 24 for providing a first reference signal for the first comparison device 24, the shielding sensing device 21 is mounted on the horizontal tube 12 and used for detecting whether a towel is placed on the horizontal tube 12 and converting the towel into an object detection signal, the and logic circuit 26 is coupled to the first comparison device 24 and the shielding sensing device 21 for receiving the comparison signal and the object detection signal and outputting a logic control signal, and the first control device 22 is coupled to the and logic circuit 26 for receiving the logic control signal and outputting the first control signal to the heating wire.

The first comparison device 24 is a comparator N1, and the model of the comparator N1 is LM 393; the first reference device 25 is a resistor R1 and a potentiometer RW1, the resistance of the resistor R1 is 90K Ω, the model of the potentiometer RW1 is 3296W, and the nominal resistance range is 10 Ω -2M Ω.

The inverting input terminal of the comparator N1 is connected to the first temperature sensor 8, the non-inverting input terminal of the comparator N1 is connected to one end of the resistor R1 and one end of the potentiometer RW1, the other end of the potentiometer RW1 is connected to the power supply VCC, and the other end of the resistor R1 is connected to the ground GND.

When the temperature detection signal of the transverse pipe 12 is smaller than the first reference signal, the comparator N1 outputs a comparison signal of high level; when the temperature detection signal of the cross tube 12 is greater than the first reference signal, the comparator N1 outputs a comparison signal at a low level.

The first control device 22 comprises a triode Q1, a capacitor C1, a resistor R2, a resistor R3 and a relay K1; the resistance value of the resistor R2 is 1.5K omega; the resistance value of the resistor R3 is 1K omega, the resistance value of the capacitor C1 is 800pF, the relay K1 is a normally open relay, the model of the relay K1 is PQ1A-3V, the triode Q1 is an NPN type triode, the model is 2SC4019, and the conduction threshold value of the triode is 0.7V; here, relay K1 may also be replaced with a thyristor.

The output end of the comparator N1 and the shielding induction device 21 are connected with the input end of the AND logic circuit 26, the output end of the AND logic circuit 26 is connected with the other end of the resistor R2 and the other end of the capacitor C1, the base electrode of the triode Q1 is respectively connected with one end of the resistor R2, one end of the resistor R3 and one end of the capacitor C1, and the other end of the resistor R3 is respectively connected with the emitter of the triode Q1 and the ground GND; one end of the relay K1 is connected with the collector of the triode Q1, and the other end of the relay K1 is connected with a power supply VCC; one end of the normally open contact of the relay K1 is connected with one end of the 220V alternating current, the other end of the normally open contact of the relay K1 is connected with the heating wire, and the other end of the heating wire is connected with the other end of the 220V alternating current.

When the comparator N1 outputs a high level and the shielding sensing device 21 outputs a high level, the AND gate logic circuit 26 outputs a high level, the triode Q1 is conducted, the relay K1 is electrified, the normally open contact K1-1 of the relay K1 is closed, and the heating wire is electrified and heated; on the contrary, the and logic circuit 26 outputs low level, the triode Q1 is not conducted, the relay K1 is not powered, the normally open contact K1-1 of the relay K1 is kept open, and the heating wire is not heated.

The second temperature sensor 9 is used for detecting an ambient temperature and converting the ambient temperature into an ambient temperature detection signal, the second comparing device 27 is coupled to the second temperature sensor 9 for receiving the ambient temperature detection signal and outputting a second comparison signal, the second reference device 271 is coupled to the second comparing device 27 for providing the second reference signal for the second comparing device 27, the second control device 28 is coupled to the second comparing device 27 for receiving the second comparison signal and outputting a second control signal, and the power adjusting device 29 is coupled to the second control device 28 for receiving the second control signal and responding to the second control signal.

The second comparing device 27 is a comparator N2, and the model of the comparator N2 is LM 393; the second reference device 271 is a resistor R4 and a potentiometer RW2, the resistor R4 having a resistance of 90K Ω, the potentiometer RW2 having a model number of 3296W and a nominal resistance in the range of 10 Ω -2M Ω.

The non-inverting input terminal of the comparator N2 is connected to the second temperature sensor 9, the inverting input terminal of the comparator N2 is connected to one end of the resistor R4 and one end of the potentiometer RW2, the other end of the potentiometer RW2 is connected to the power supply VCC, and the other end of the resistor R4 is connected to the ground GND.

The second control device 28 comprises a triode Q2, a capacitor C2, a resistor R5, a resistor R6 and a relay K2; the resistance value of the resistor R5 is 2K omega; the resistance value of the resistor R6 is 1.6K omega, the resistance value of the capacitor C2 is 800pF, the relay K2 is a normally closed relay, the model of the relay K2 is PQ1A-3V, the triode Q2 is an NPN type triode, the model is 2SC4019, and the conduction threshold value of the triode is 0.7V; here, relay K2 may also be replaced with a thyristor.

The power regulator 29 is a resistor R7, and the resistance of the resistor R7 is 2K Ω.

The base electrode of the triode Q2 is respectively connected with one end of a resistor R5, one end of a resistor R6 and one end of a capacitor C2, the output end of a comparator N2 is connected with the other end of a resistor R5 and the other end of a capacitor C2, and the other end of the resistor R6 is respectively connected with the emitter of the triode Q2 and the ground GND; one end of the relay K2 is connected with the collector of the triode Q2, and the other end of the relay K2 is connected with a power supply VCC; one end of a normally open contact of the relay K1 is connected with one end of a heating wire and one end of a resistor R7, and the other end of the heating wire is connected with the other end of 220V alternating current.

When the environment temperature detection signal is smaller than the second reference signal, the comparator N2 outputs a low-level comparison signal, the triode Q2 is not conducted, the normally open contact K2-1 of the relay K2 is kept closed, and the heating wire keeps heating at the original power; when the environment temperature detection signal is greater than the second reference signal, the comparator N2 outputs a high-level comparison signal, the triode Q2 is switched on, the normally open contact K2-1 of the relay K2 is switched off, the current passing through the heating wire is reduced, and the heating power of the heating wire is reduced.

The number of the second comparing device 27, the second reference device 271, the second control device 28 and the power adjusting device 29 can be multiple, the second comparing device 27 is connected with the second temperature sensor 9, and the second reference signal of each second comparing device 27 is set to different temperatures, so as to control different heating powers of the heating wires according to different environmental temperatures.

The implementation principle of the embodiment is as follows:

during installation, the second insulating sleeve 511 is firstly inserted into the second external threaded pipe 51, the male pin 7 is inserted into the female pin 6, the clamping block 512 is clamped with the clamping hole 5111, the control box 23 and the vertical pipe 11 are not rotated, the internal nut 3 is rotated to connect the internal nut 3 to the first external threaded pipe 5 in a threaded manner, and the internal nut 3 is screwed; after the inner nut 3 is screwed, the ratchet teeth 32 are engaged with the check pawl 521 so that the inner nut 3 is not easily rotated in the opposite direction to the first outer threaded pipe 5.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (10)

1. The utility model provides an electric heating towel rail, includes that support body (1) wear to locate the heating wire in support body (1) and locate controller (2) on support body (1), its characterized in that: the shielding induction device (21) is arranged on the frame body (1) and is used for detecting whether an object is placed on the frame body (1) and converting the object into an object detection signal;

the controller (2) comprises a first control device (22) which is coupled to the shielding sensing device (21) to receive the object detection signal and output a first control signal to the heating wire.

2. An electrically heated towel rack according to claim 1, wherein: the controller (2) comprises a control box (23), a round pipe (231) is integrally arranged on the outer side wall of the control box (23), an inner nut (3) rotatably connected with the round pipe (231) is sleeved on the round pipe (231), an inner convex ring (31) is integrally arranged at one end, close to the control box (23), of the inner nut (3), and a limiting ring (4) abutted against the inner convex ring (31) for limiting is arranged at one end, far away from the control box (23), of the round pipe (231);

one side of the inner nut (3) close to the frame body (1) is in threaded connection with a first outer threaded pipe (5) connected with the frame body (1).

3. An electrically heated towel rack according to claim 2, wherein: the frame body (1) comprises two vertical pipes (11) which are parallel to each other and horizontal pipes (12) which are arranged between the two vertical pipes (11) and are arranged at intervals along the length direction of the vertical pipes (11);

one end of the first external thread pipe (5) close to the frame body (1) is integrally provided with a second external thread pipe (51) which is arranged in the frame body (1) in a penetrating way and is in threaded connection with one end of the vertical pipe (11);

a reinforcing sleeve (111) in threaded connection with the second external threaded pipe (51) is embedded in the vertical pipe (11).

4. An electrically heated towel rack according to claim 3, wherein: a plurality of ratchets (32) uniformly arranged along the circumferential direction are integrally arranged on the inner peripheral wall of the inner nut (3) close to the equipment, a separating ring (52) is integrally arranged at one end of the first outer threaded pipe (5) close to the second outer threaded pipe (51), and a check pawl (521) matched with the ratchets (32) is integrally arranged on the separating ring (52).

5. An electrically heated towel rack according to claim 3, wherein: a female plug (6) penetrates through the first external thread pipe (5), and a male plug (7) matched with the female plug (6) is inserted in the second external thread pipe (51);

the limiting ring (4) is further integrally provided with a first insulating sleeve (41) penetrating through the first external threaded pipe (5), and the insert nut (6) is inserted into the first insulating sleeve (41);

a second insulating sleeve (511) is inserted in the second external thread pipe (51), and the male pin (7) is inserted in the second insulating sleeve (511).

6. An electrically heated towel rack according to claim 5 wherein: the internal perisporium that first external screw thread pipe (5) was kept away from in second external screw thread pipe (51) is gone up an organic whole and is equipped with two at least joint pieces (512), offer joint hole (5111) that supply joint piece (512) joint on second insulating cover (511).

7. An electrically heated towel rack according to claim 2, wherein: one side of the limiting ring (4) far away from the first external threaded pipe (5) is integrally provided with a connecting pipe (42) which is concentrically arranged with the limiting ring (4) and is connected with the internal thread of the circular pipe (231).

8. An electrically heated towel rack according to claim 1, wherein: the temperature detection device also comprises a first temperature sensor (8) which is arranged on the transverse pipe (12) and is used for detecting the temperature of the transverse pipe and converting the temperature into a transverse pipe temperature detection signal;

the controller (2) further comprises a first comparison device (24) coupled to the first temperature sensor (8) for receiving the cross tube temperature detection signal and outputting a comparison signal, a first reference device (25) coupled to the first comparison device (24) for providing a first reference signal for the first comparison device (24), and an and logic circuit (26) coupled to the first comparison device (24) and the shielding sensing device (21) for receiving the comparison signal and the object detection signal and outputting a logic control signal to the first control device (22).

9. An electrically heated towel rack according to claim 1, wherein: the device also comprises a second temperature sensor (9) which is arranged at one end of the vertical pipe (11) and is used for detecting the ambient temperature and converting the ambient temperature into an ambient temperature detection signal;

the controller (2) further comprises a second comparing device (27) coupled to the second temperature sensor (9) for receiving the ambient temperature detection signal and outputting a second comparison signal, a second reference device (271) coupled to the second comparing device (27) for providing a second reference signal to the second comparing device (27), a second control device (28) coupled to the second comparing device (27) for receiving the second comparison signal and outputting a second control signal, and a power adjusting device (29) coupled to the second control device (28) for receiving the second control signal and responding to the second control signal.

10. An electrically heated towel rack according to claim 9, wherein: an installation seat (10) is further fixed to one end of the vertical pipe (11) through a screw, a through hole (101) for the second temperature sensor (9) to penetrate through is formed in the installation seat (10), and at least two clamping pieces (102) uniformly arranged along the circumferential direction of the through hole (101) are integrally arranged on the inner circumferential wall of the through hole (101);

one side that standpipe (11) were kept away from in mount pad (10) is equipped with protection casing (104), one side an organic whole that standpipe (11) were kept away from in mount pad (10) is equipped with two at least fixture blocks (103), joint groove (1041) that supply joint piece (512) joint are seted up to one side that protection casing (104) are close to mount pad (10).

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