Anti-moving structure of electric warmer

Abstract

The utility model discloses an anti-moving structure of an electric warmer. The anti-moving structure comprises a shell, a microswitch, an ejector rod and an ejector rod support. The ejector rod is arranged at the bottom of the shell, the microswitch is provided with an operation contact, the microswitch is arranged above the ejector rod, the operation contact is right opposite to the upper surface of the ejector rod, a microswitch support is arranged on the shell, the microswitch is fixed on the microswitch support, and the microswitch is arranged on the microswitch support. The ejector rod support is fixed to the bottom of the shell, a guide hole is formed in the ejector rod support, and the ejector rod penetrates through the guide hole to be arranged on the ejector rod support. Through the arrangement of the ejector rod and the microswitch, the ejector rod and the microswitch abut against each other when a product is stably placed on the ground, the ejector rod and the microswitch do not abut against each other when the product is moved away from the ground, the structure is simple, installation is convenient, safety and reliability are achieved, and the personal and property safety of a user is effectively protected when the electric warmer is moved away from the ground.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-movement structures of electric heaters, in particular to an anti-movement structure of electric heaters. Background Art

[0002] Electric heaters are devices that use electricity as energy to heat. With the improvement of national power facilities and the improvement of people's living standards, various electric heaters have entered thousands of households. Among them, portable electric heaters are popular among consumers for their lightness, compactness, safety in use and convenience in installation.

[0003] In order to prevent danger when moving, portable electric heaters are usually equipped with relevant anti-movement detection mechanisms. However, the anti-movement structures of electric heaters are relatively complex, have poor reliability, and often fail. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The problem to be solved by the utility model is to provide an anti-movement structure for an electric heater, so as to overcome the problems that the anti-movement structure for the electric heater in the prior art is complicated, has poor reliability and often fails.

[0006] (II) Technical solution

[0007] In order to solve the technical problem, the utility model provides an anti-movement structure of an electric heater, comprising a shell, a microswitch, a push rod and a push rod bracket; the push rod is arranged at the bottom of the shell, the microswitch has an operating contact, the microswitch is arranged above the push rod, and the operating contact is opposite to the upper surface of the push rod, the shell is provided with a microswitch bracket, the microswitch is fixed on the microswitch bracket, the push rod bracket is fixed to the bottom of the shell, the push rod bracket is provided with a guide hole, and the push rod is arranged on the push rod bracket through the guide hole.

[0008] By adopting the above scheme, by setting the top rod and the micro switch, the two will conflict with each other when the product is placed stably on the ground, and the two will not conflict with each other when the product is moved off the ground. The structure is simple, the installation is convenient, and it is safe and reliable. It can effectively protect the personal and property safety of the user when the electric heater is moved off the ground.

[0009] Preferably, the bottom of the shell is further provided with feet for supporting the shell.

[0010] Preferably, a control element is further included, and the micro switch is electrically connected to the control element.

[0011] Preferably, a stop shoulder is provided on the push rod.

[0012] Preferably, a push rod seat is provided below the push rod.

[0013] Preferably, the micro switch has an elastic operating arm.

[0014] Preferably, an elastic element is arranged above the push rod, and a top block is arranged above the elastic element, and the upper surface of the top block faces the operating contact.

[0015] Preferably, a return spring is provided between the push rod and the push rod bracket.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model provides an anti-movement structure for an electric heater. Since a micro switch is arranged above a top rod, the top rod is pushed upward by the ground to act on the micro switch, thereby compressing the micro switch. The control element receives the micro switch signal to put the product in a normal state. When the electric heater tilts or falls or is moved, the top rod releases the action on the micro switch and removes the force acting on it, so that the electric heater is in a protected state. The utility model has the advantages of simple structure, easy installation, safety and reliability, and can effectively protect the personal and property safety of the user when the electric heater is moved off the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of Example 1 of the utility model;

[0021] Figure 2 This is a schematic diagram of the exploded structure of Example 1 of the utility model;

[0022] Figure 3 This is a half-section structural schematic diagram of the normal working state of Example 1 of the utility model;

[0023] Figure 4 This is a schematic diagram of a half-section structure of Embodiment 1 of the utility model in a moving state;

[0024] Figure 5 This is a schematic diagram of the half-exploded structure of Example 1 of the utility model;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the micro switch of Example 1 of the utility model;

[0026] Figure 7 This is a schematic diagram of a half-section structure of Embodiment 2 of the utility model in a moving state;

[0027] Figure 8 This is a schematic diagram of the three-dimensional structure of the micro switch of Embodiment 2 of the present utility model;

[0028] Fig. 9 This is a schematic diagram of the half-section structure of the top rod of Example 3 of the utility model.

[0029] The corresponding component names of the various reference numerals in the figure are:

[0030] 1-housing; 11-micro switch bracket; 12-support foot; 2-micro switch; 21-operating contact; 22-elastic operating arm; 3-thrust rod; 31-stop shoulder; 32-elastic element; 33-thrust block; 4-thrust rod bracket; 41-guide hole; 5-control element; 6-thrust rod seat; 7-reset spring. DETAILED DESCRIPTION

[0031] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0033] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0034] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0035] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0036] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0037] In this embodiment:

[0038] See also Figure 1 to Figure 6 , an anti-movement structure of an electric heater, comprising a shell 1, a microswitch 2, a push rod 3 and a push rod bracket 4; the push rod 3 is arranged at the bottom of the shell 1, the microswitch 2 has an operating contact 21, the microswitch 2 is arranged above the push rod 3, and the operating contact 21 is directly opposite to the upper surface of the push rod 3, a microswitch bracket 11 is arranged on the shell 1, the microswitch 2 is fixed on the microswitch bracket 11, the push rod bracket 4 is fixed to the bottom of the shell 1, the push rod bracket 4 is provided with a guide hole 41, the push rod 3 is arranged on the push rod bracket 4 through the guide hole 41.

[0039] Specifically, in this embodiment, the guide hole 41 and the push rod 3 are loosely matched, that is, the push rod 3 can move freely up and down in the guide hole 41.

[0040] Furthermore, as a preferred embodiment, the bottom of the housing 1 is also provided with a support foot 12 for supporting the housing 1. The top rod 3 is provided with a stop shoulder 31.

[0041] Specifically, in the present embodiment, the stop shoulder 31 can prevent the push rod 3 from falling out of the guide hole 41 downwards; four support legs 12 are arranged at the four corners of the bottom of the shell, so that the support is more stable, and the support legs 12 are used to stand on the ground to support the entire electric heater; when the electric heater is in a moving and suspended state, that is, when the support legs 12 are not in contact with the ground, the lowest surface of the push rod 3 is lower than the lowest surface of the support legs 12, and at this time, the upper surface of the push rod 3 has no force on the micro switch 2; and when the electric heater is standing on the ground, the push rod 3 is pushed upward by the ground, so that the upper surface of the push rod 3 acts on the operating contact 21, triggering the micro switch 2.

[0042] Furthermore, as a preferred embodiment, it further comprises a control element 5, the micro switch 2 is electrically connected to the control element 5; a push rod seat 6 is provided below the push rod 3,

[0043] Specifically, in this embodiment, the control element 5 can receive the electrical signal of the micro switch 2 to determine whether the electric heater is in a suspended state. The top rod seat 6 is sleeved on the lower end of the top rod 3, which can increase the contact area between the top rod 3 and the ground, thereby making the support more stable, not only will it not shake but also can increase the service life of the top rod.

[0044] When the electric heater stands on the ground and works normally, the lower surface of the top rod 3 is pushed upward by the action of the ground, and then the upper surface of the top rod 3 is pressed against the operating contact 21, so that the microswitch 2 is always kept in the triggered state. Since the microswitch 2 is electrically connected to the control element 5, the control element 5 controls the electric heater to keep in the normal working state according to the state of the microswitch 2; once the electric heater is moved, the support foot 12 leaves the ground, and the top rod 3 will also move downward under the action of gravity, and the upper surface of the top rod 3 will lose contact with the operating contact 21 of the microswitch 2, so that the microswitch 2 is reset and is no longer triggered. Once the control element 5 detects that the microswitch 2 is not triggered, the control element 5 immediately controls all functional elements of the electric heater to enter the protection state to protect the product and the personal safety of the user.

[0045] Further, as a preferred embodiment, see Figure 7-Figure 8 The micro switch 2 is a micro switch 2 with an elastic operating arm 22, and the upper surface of the push rod 3 is pressed under the elastic operating arm 22.

[0046] Specifically, in the present embodiment, when the push rod 3 moves upward, the elastic operating arm 22 exerts force on the operating contact 21. After the micro switch 2 is triggered, the elastic operating arm 22 is elastic and can allow the push rod 3 to continue to move upward a small distance at one end, so as to avoid the influence of errors caused by manufacturing and installation, and to avoid rigid contact between the push rod 3 and the operating contact 21 after the micro switch 2 is triggered. If there is no buffering of the elastic operating arm 22, it may even cause the push rod 3 to be off the ground while carrying the electric heater.

[0047] Furthermore, as a preferred embodiment, a return spring 7 is provided between the push rod 3 and the push rod support 4 .

[0048] Specifically, in the present embodiment, the reset spring 7 is in a compressed state when the electric heater is in a normal working state; and when the electric heater is in a state of being moved off the ground, the top rod 3 moves downward more reliably under the action of the reset spring 7, so that the micro switch 2 can be reliably reset.

[0049] Further, as a preferred embodiment, see Fig. 9 An elastic element 32 is arranged above the top rod 3, and a top block 33 is arranged above the elastic element 32. The upper surface of the top block 33 faces the operating contact 21, and the elastic force of the elastic element 32 is much greater than the force of the operating contact 21.

[0050] Specifically, in the present embodiment, when the push rod 3 moves upward, the elastic element 32 and the push block 33 exert force on the operating contact 21. Since the elastic force of the elastic element 32 is much greater than the force of the operating contact 21, the operating contact 21 will be triggered before the elastic element 32 is deformed. Furthermore, after the micro switch 2 is triggered, due to the presence of the elastic element 32, the push rod 3 can be allowed to continue to move upward a small distance at one end, so as to avoid the influence of errors caused by manufacturing and installation, and to avoid rigid contact between the push rod 3 and the operating contact 21 after the micro switch 2 is triggered. If there is no buffering of the elastic element 32, it may even cause the push rod 3 to carry the electric heater, while the lower surface of the support foot 12 near the push rod 3 is off the ground.

[0051] Working principle of an anti-movement structure of an electric heater:

[0052] When the electric heater stands on the ground and works normally, the lower surface of the push rod 3 is pushed upward by the action of the ground, and then the upper surface of the push rod 3 is pressed against the operating contact 21, so that the microswitch 2 is always kept in the triggered state. Since the microswitch 2 is electrically connected to the control element 5, the control element 5 controls the electric heater to keep in the normal working state according to the state of the microswitch 2; and once the electric heater is moved, the support foot 12 leaves the ground, and the push rod 3 will also move downward under the action of gravity or the elastic force of the reset spring 7, and the upper surface of the push rod 3 will be out of contact with the operating contact 21 of the microswitch 2, so that the microswitch 2 is reset and is no longer triggered. Once the control element 5 detects that the microswitch 2 is not triggered, the control element 5 immediately controls all functional elements of the electric heater to enter the protection state to protect the product and the personal safety of the user.

[0053] The elastic operating arm 22 of the micro switch 2 or the elastic element 32 on the top of the push rod 3 can avoid the influence caused by manufacturing and installation errors, and prevent the push rod 3 from making rigid contact with the operating contact 21 after the micro switch 2 is triggered, or even cause the push rod 3 to be off the ground with the lower surface of the support leg 12 near the push rod 3 when the electric heater is supported.

[0054] In addition, the setting of the reset spring 7 can overcome the situation that the push rod 3 is insufficient in gravity and the push rod 3 cannot fall freely in the guide hole 41, so that as long as the support foot 12 leaves the ground, the push rod 3 will move downward, so that the micro switch 2 enters the reset state, which is safe and reliable.

[0055] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0056] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An anti-movement structure for an electric heater, characterized in that: The invention comprises a housing (1), a micro switch (2), a push rod (3) and a push rod bracket (4); the push rod (3) is arranged at the bottom of the housing (1); the micro switch (2) has an operating contact (21); the micro switch (2) is arranged above the push rod (3), and the operating contact (21) is directly opposite to the upper surface of the push rod (3); a micro switch bracket (11) is arranged on the housing (1); the micro switch (2) is fixed on the micro switch bracket (11); the push rod bracket (4) is fixed on the bottom of the housing (1); a guide hole (41) is arranged on the push rod bracket (4); the push rod (3) passes through the guide hole (41) and is arranged on the push rod bracket (4).

2. The anti-movement structure of an electric heater according to claim 1, characterized in that: The bottom of the shell (1) is also provided with a support foot (12) for supporting the shell (1).

3. The anti-movement structure of an electric heater according to claim 1, characterized in that: It also includes a control element (5), and the micro switch (2) is electrically connected to the control element (5).

4. The anti-movement structure of an electric heater according to claim 1, characterized in that: The push rod (3) is provided with a stop shoulder (31).

5. The anti-movement structure of an electric heater as claimed in claim 1, characterized in that: A push rod seat (6) is arranged below the push rod (3).

6. The anti-movement structure of an electric heater as claimed in claim 1, characterized in that: The micro switch (2) is provided with an elastic operating arm (22).

7. The anti-movement structure of an electric heater according to claim 1, characterized in that: An elastic element (32) is arranged above the push rod (3), and a top block (33) is arranged above the elastic element (32), wherein the upper surface of the top block (33) faces the operating contact (21).

8. The anti-movement structure of an electric heater as claimed in claim 1, characterized in that: A return spring (7) is provided between the push rod (3) and the push rod bracket (4).

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