Micro switch bracket and overflow protection device used therein

Abstract

The present invention discloses a micro switch bracket and an overflow protection device used therein, which comprises a bracket body, a connecting portion for connecting a micro switch is provided on the bracket body, connecting arms are extended downward at both ends of the bracket body, and limit plates are provided inward at the lower ends of the two connecting arms, and a receiving space for installing a float assembly is formed between the limit plates and the bottom of the bracket body, and the float assembly has a gap for moving up and down in the receiving space. The micro switch bracket and the overflow protection device used therein can not only install the micro switch, but also install the float assembly, so that the positions of the float assembly and the micro switch are relatively fixed.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to a micro switch bracket and an overflow protection device applied thereto. Background Art

[0002] The sink-type fruit and vegetable washing machine integrates the function of automatically washing fruits and vegetables on the sink. It has the function of automatically washing fruits and vegetables. Its structure generally includes a trough body installed on the kitchen countertop. The top of the trough body has an opening, and a washing chamber is provided therein, and the bottom is connected through a drain pipe; the trough body generally includes a washing trough and a fruit and vegetable washing trough. The fruit and vegetable washing trough is provided with a spray device for spraying water on fruits and vegetables. The bottom of the fruit and vegetable washing trough is provided with an ultrasonic generator for emitting ultrasonic waves into the water to wash fruits and vegetables with ultrasonic waves; the bottom of the fruit and vegetable washing trough is also provided with an electronic control unit and a water pump motor. In order to prevent the electronic control unit from being considered to touch the safety of the product, a bottom shell is generally added to the bottom of the fruit and vegetable washing trough. The bottom shell shields the electronic control unit, the water pump motor, the ultrasonic generator, etc. inside it to avoid being touched by humans and causing danger. The setting of the bottom shell greatly improves the appearance and safety of the product. However, if water leaks due to failure to overflow or failure of the overflow device during water inflow, the leaked water will gather inside the bottom shell. If the gathered water is not removed in time or the water inlet valve is not cut off in time, the electronic control unit in the bottom shell may fail to fill or there may be a risk of electric shock.

[0003] The bottom of the bottom shell of the prior art sink-type fruit and vegetable washing machine is provided with an overflow protection device, which fixes a micro switch on the inner bottom wall of the bottom shell, and then uses the buoyancy of the float to touch the contact of the micro switch, and then the micro switch cuts off the water inlet unit to stop water inlet; the micro switch of the overflow protection device is installed on the bracket, but a base for the float to be installed is also provided under the bracket, and the base and the bracket are detachable, but during assembly, the base must be fixed to the inner bottom wall of the bottom shell first, and then the float is placed on the base, and finally the bracket is assembled, which is troublesome to assemble, and the position of the float and the micro switch on the bracket must be calibrated during assembly, which is troublesome to operate. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the above prior art and provide a micro switch bracket which can not only install a micro switch but also install a float assembly so that the positions of the float assembly and the micro switch are relatively fixed.

[0005] The technical solution of the present invention is to provide a micro switch bracket with the following structure: it includes a bracket body, the bracket body is provided with a connecting portion for connecting the micro switch, both ends of the bracket body are provided with connecting arms extending downward, the lower ends of the two connecting arms are provided with limiting plates inwardly, and an accommodating space for installing a float assembly is formed between the limiting plate and the bottom of the bracket body, and the float assembly has a gap for moving up and down in the accommodating space.

[0006] Preferably, at least one guide member is provided at the bottom of the bracket body, and the guide member includes a guide plate extending downwardly and arranged in the accommodating space, and the free end of the guide plate is connected to a cylindrical head, and the outer diameter of the cylindrical head is greater than the thickness of the guide plate.

[0007] Preferably, the guide member comprises a first guide piece connected to the bottom of the bracket body and arranged obliquely, and a second guide piece arranged vertically at the lower end of the first guide piece, and the cylindrical head is connected to the lower end of the second guide piece.

[0008] Preferably, the outer side walls of the two connecting arms of the bracket body are each provided with a slot arranged along the extension direction of the connecting arm, and the outer side walls at the lower parts of the two slots are connected to a card block, and the card block is used for the bracket body to be clamped on the bottom shell that collects water leakage.

[0009] Preferably, a handle is provided on one side wall of the bracket body, and the handle and the bracket are an integrally formed structure.

[0010] Preferably, the bracket body is provided with a slot for inserting the micro switch, and the bottom of the slot is provided with a notch for the contact of the micro switch to extend out.

[0011] Preferably, there are two guide members, and the two guide members are symmetrically distributed at the bottom of the bracket body.

[0012] After adopting the above structure, the micro switch bracket of the present invention has the following advantages compared with the prior art:

[0013] 1. The support body of the micro switch support not only has a connection part for connecting the micro switch, but also uses connecting arms extending downward from both ends of the support body, and limit plates set at the lower ends of the two connecting arms, and a receiving space for the installation of the float assembly is formed between the limit plate and the bottom of the support body. The receiving space for the installation of the float assembly is set on the support body, so that the support body itself has the function of connecting the float assembly, and the micro switch is installed on the support body, so that the cooperation between the float assembly and the micro switch is more strict, so that the action of the micro switch is more sensitive.

[0014] 2. At least one guide is provided at the bottom of the bracket body, and the guide includes a guide piece extending downward and arranged in the accommodation space, and the free end of the guide piece is connected to a cylindrical head, and the outer diameter of the cylindrical head is greater than the thickness of the guide piece. This arrangement enables the guide to guide the rise of the float assembly, which is conducive to the rapid rise of the float assembly. The top of the float assembly is provided with a guide groove for the free end of the guide to be inserted, and the inner wall of the guide groove is slidably matched with the free end of the guide.

[0015] 3. The design of the handle on the side wall of the bracket body makes the installation and disassembly of the bracket body very convenient.

[0016] 4. The guide member is composed of a first guide piece arranged obliquely and a second guide piece arranged vertically, so that the horizontal distance between the outer wall of the first guide piece and the lower end of the second guide piece is greater than at least twice the thickness of the guide member, so that the guide member can not only be inserted into the guide groove of the float assembly, but also the side wall of the guide member can contact the inner wall of the guide groove, thereby avoiding shaking of the float assembly when it rises.

[0017] 5. The design of the slots on the outer side walls of the two connecting arms of the bracket body and the blocks in the slots enables the bracket body to be quickly plugged and fixed on the bottom shell where water leakage is collected, which is convenient for quick installation.

[0018] Another technical solution of the present invention is to provide an overflow protection device with the following structure, which includes a bottom cover, the inner bottom wall of the bottom cover is provided with a concave groove; a micro switch bracket, the micro switch bracket is detachably connected in the groove; a micro switch, the micro switch is detachably connected to the micro switch bracket, and the contact of the micro switch is vertically arranged downward, and the micro switch is electrically connected to the electric control unit through a wire; a float assembly, the float assembly is arranged in the accommodating space of the micro switch bracket, when the float assembly rises a certain displacement under the buoyancy of water, it touches the contact of the micro switch, so that the micro switch cuts off the circuit of the electric control unit; the micro switch bracket adopts the micro switch bracket as described above. The overflow protection device has the micro switch bracket, which makes it convenient to install and disassemble, and the positions of the float assembly and the micro switch are relatively fixed, the micro switch can be triggered quickly, and the sensitivity is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the micro switch bracket of the present invention.

[0020] Figure 2 It is a schematic structural diagram of the micro switch bracket from another angle of the present invention.

[0021] Figure 3 It is a structural schematic diagram of the overflow protection device of the present invention.

[0022] As shown in the figure:

[0023] 1. Bracket body, 100. Connecting arm, 101. Slot, 102. Block, 103. Handle, 104. Limiting piece, 105. Accommodating space, 106. Guide, 107. First guide piece, 108. Second guide piece, 109. Cylindrical head, 110. Slot, 111. Notch, 2. Micro switch, 3. Float assembly. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 and Figure 2 As shown;

[0026] The present invention discloses a micro switch bracket, which comprises a bracket body 1, wherein the bracket body 1 is provided with a connection portion for connecting a micro switch 2, and both ends of the bracket body 1 are provided with connecting arms 100 extending downward, and the lower ends of the two connecting arms 100 are provided with limit plates 104 inwardly, and an accommodation space 105 for installing a float assembly 3 is formed between the limit plates 104 and the bottom of the bracket body 1, and the float assembly 3 has a gap for moving up and down in the accommodation space 105. The bracket body of the micro switch bracket not only has a connection portion for connecting a micro switch, but also utilizes connecting arms extending downward at both ends of the bracket body, and limit plates provided at the lower ends of the two connecting arms, and an accommodation space for installing a float assembly is formed between the limit plates and the bottom of the bracket body. The accommodation space for installing the float assembly is arranged on the bracket body, so that the bracket body itself has the function of connecting the float assembly, and the micro switch is installed on the bracket body, so that the cooperation between the float assembly and the micro switch is more strict, so that the action of the micro switch is more sensitive.

[0027] At least one guide member 106 is provided at the bottom of the support body 1. The guide member 106 includes a guide piece extending downwardly and arranged in the accommodation space 105. The free end of the guide piece is connected to a cylindrical head 109. The outer diameter of the cylindrical head 109 is greater than the thickness of the guide piece. This arrangement enables the guide member to guide the rise of the float assembly, which is conducive to the rapid rise of the float assembly. The top of the float assembly is provided with a guide groove for the free end of the guide member to be inserted, and the inner wall of the guide groove is slidably matched with the free end of the guide member.

[0028] The guide member 106 comprises a first guide piece 107 connected to the bottom of the support body 1 and arranged obliquely, and a second guide piece 108 arranged vertically at the lower end of the first guide piece 107, and the cylindrical head 109 is connected to the lower end of the second guide piece 108. In this way, the horizontal distance between the outer side wall of the first guide piece and the lower end of the second guide piece is greater than at least twice the thickness of the guide member, so that the guide member can not only be inserted into the guide groove of the float assembly, but also the side wall of the guide member can contact the inner side wall of the guide groove, so as to avoid shaking of the float assembly when it rises.

[0029] The outer side walls of the two connecting arms 100 of the bracket body 1 are each provided with a slot 101 arranged along the extending direction of the connecting arm 100, and the outer side walls of the two slots 101 below are each connected with a clamping block 102, and the clamping block 102 is used for clamping the bracket body 1 on the bottom shell for collecting water leakage. The design of the slots on the outer side walls of the two connecting arms of the bracket body and the clamping blocks in the slots enables the bracket body to be quickly plugged and fixed on the bottom shell for collecting water leakage, which is convenient for quick installation.

[0030] A handle 103 is provided on one side wall of the support body 1, and the handle 103 is an integrally formed structure with the support body 1. The design of the handle on the side wall of the support body makes the installation and removal of the support body very convenient.

[0031] The support body 1 is provided with a slot 110 for the micro switch 2 to be inserted into, and the bottom of the slot 110 is provided with a notch 111 for the contact of the micro switch 2 to extend out.

[0032] There are two guide members 106 , and the two guide members 106 are symmetrically distributed at the bottom of the bracket body 1 .

[0033] like Figure 3As shown, the overflow protection device disclosed in the present invention includes a bottom cover, the inner bottom wall of the bottom cover is provided with a concave groove; a micro switch bracket, the micro switch bracket is detachably connected in the groove; a micro switch 2, the micro switch 2 is detachably connected to the micro switch bracket, and the contact of the micro switch 2 is vertically arranged downward, and the micro switch 2 is electrically connected to the electric control unit through a wire; a float assembly 3, the float assembly 3 is arranged in the accommodating space 105 of the micro switch bracket, when the float assembly 3 rises a certain displacement under the buoyancy of water, it touches the contact of the micro switch 2, so that the micro switch 2 cuts off the circuit of the electric control unit; the micro switch bracket adopts the micro switch bracket described above. The groove is used to quickly collect leaked water. When leaked water is collected in the groove, the float assembly floats up under the action of water, so that the upper end of the float assembly touches the contact of the micro switch, so that the micro switch cuts off the circuit of the electronic control unit, thereby stopping the water inlet unit from inletting water, and achieving overflow protection; the float assembly is made of lightweight materials, such as plastic foam, etc.

[0034] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. For example, the shape or structure of the guide member, any changes or replacements that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A micro switch bracket, comprising a bracket body, wherein the bracket body is provided with a connecting portion for connecting the micro switch, characterized in that: Both ends of the bracket body are provided with connecting arms extending downward, and the outer side walls of the two connecting arms are connected with blocks for the bracket body to be clamped on the bottom shell for collecting water leakage; the lower ends of the two connecting arms are provided with limiting pieces inwardly, and a receiving space for the float assembly to be installed is formed between the limiting pieces and the bottom of the bracket body, and the float assembly has a gap for moving up and down in the receiving space; At least one guide member is provided at the bottom of the bracket body, and the guide member includes a guide piece extending downwardly and arranged in the accommodating space, and the free end of the guide piece is connected to a cylindrical head, and the outer diameter of the cylindrical head is larger than the thickness of the guide piece; the guide member includes a first guide piece connected to the bottom of the bracket body and arranged obliquely, and a second guide piece arranged vertically at the lower end of the first guide piece, and the cylindrical head is connected to the lower end of the second guide piece.

2. The micro switch bracket according to claim 1, characterized in that: The outer side walls of the two connecting arms of the bracket body are each provided with a slot arranged along the extending direction of the connecting arm, and the outer side walls at the lower parts of the two slots are each connected with the clamping block.

3. The micro switch bracket according to claim 1, characterized in that: A handle is arranged on one side wall of the bracket body, and the handle and the bracket body are an integrally formed structure.

4. The micro switch bracket according to claim 1, characterized in that: The support body is provided with a slot for inserting the micro switch, and the bottom of the slot is provided with a notch for the contact of the micro switch to extend out.

5. The micro switch bracket according to claim 2, characterized in that: There are two guide members, and the two guide members are symmetrically distributed at the bottom of the bracket body.

6. An overflow protection device, characterized in that: It includes a bottom cover, the inner bottom wall of which is provided with a concave groove; a micro switch bracket, which is detachably connected to the groove; a micro switch, which is detachably connected to the micro switch bracket, and the contact of the micro switch is arranged vertically downward, and the micro switch is electrically connected to the electric control unit through a wire; a float assembly, which is arranged in the accommodating space of the micro switch bracket, and when the float assembly rises a certain displacement under the buoyancy of water, it touches the contact of the micro switch, so that the micro switch cuts off the circuit of the electric control unit; the micro switch bracket adopts the micro switch bracket as described in any one of claims 1 to 5 above.

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