CN203189263U - Water supply gear pump for refrigerator - Google Patents
Water supply gear pump for refrigerator Download PDFInfo
- Publication number
- CN203189263U CN203189263U CN 201320187856 CN201320187856U CN203189263U CN 203189263 U CN203189263 U CN 203189263U CN 201320187856 CN201320187856 CN 201320187856 CN 201320187856 U CN201320187856 U CN 201320187856U CN 203189263 U CN203189263 U CN 203189263U
- Authority
- CN
- China
- Prior art keywords
- pump
- gear
- water supply
- refrigerator
- pump body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a water supply gear pump for a refrigerator. The water supply gear pump comprises a pump body over, a pump body, a gear box, and a motor hood which are connected in order; the motor hood is provided with a conductor port, O-shaped sealing rings are arranged on connecting combining surfaces between the pump body cover and the pump body, between the pump body and the gear box, and between the gear box and the motor hood; a mounting trough of the O-shaped sealing ring is arranged on one side of the combining surface, the depth of the mounting trough is in 0.3mm interference with the diameter of the O-shaped sealing ring, the wire port is provided with a silica gel waterproof plug for sealing. The water supply gear pump has the advantages that the static seal structure is arranged on each combining surface of the gear pump, the gaps between the combining surfaces is sealed so as to achieve good sealing performance by applying small pressing force, and the waterproof grade of the product is capable of achieving international industrial waterproof grade standard IPX level 7.
Description
Technical field
The utility model relates to a kind of gear pump, particularly a kind of miniature gear pump for refrigerator water supply.
Background technique
Along with household electric refrigerator to superior, multi-functional continuous development, some high-grade refrigerator has also had the function of drinking machine concurrently now, can directly take potable water from refrigerator.Textural at refrigerator, realize such function, be that the outer of refrigerator drunk water and passed through two small-sized self-priming gear pumps controls respectively to ice making machine water supply two-way water route, the wet part of crossing of this pump adopts the manufacturing of NSF material, the related request that meets food security guarantees that pump sump height, lift, flow reach the refrigerator requirement.
Because gear pump is installed on above the refrigerator inside water tank, and its internal structure is to provide power by direct current generator, for preventing that gear pump from dropping in the water tank or the globule is splashed into motor internal, cause the motor damage, cause fault, even may damage refrigerator circuit, therefore according to product working environment and job specification, very high to the classification of waterproof requirement of this pump.And existing this gear pump just installs and fixes parts such as the employing of the connection junction plane between pump casing cover, the pump housing, gear-box, electrical machinery cover bolts, does not have sealing configuration, can not reach the required higher classification of waterproof requirement of product.
The model utility content
The model utility purpose: at the problems referred to above, the purpose of this utility model provides a kind of refrigerator water supply miniature gear pump with excellent sealing effect, satisfies the higher water-proof performance requirement of product.
Technological scheme: a kind of refrigerator water supply gear pump, comprise pump casing cover, the pump housing, gear-box, electrical machinery cover, above-mentioned part is installed connection successively, offer guidewire port on the described electrical machinery cover, being connected between described pump casing cover and the described pump housing, between the described pump housing and the described gear-box, between described gear-box and the described electrical machinery cover is equipped with the O RunddichtringO on the junction plane, the mounting groove of described O RunddichtringO is opened on the wherein side of junction plane, the diameter interference 0.3mm of the groove depth of described mounting groove and described O RunddichtringO, described guidewire port are equipped with the sealing of silica gel waterproof plug.
Described guidewire port filling sealer seals described silica gel waterproof plug.
Beneficial effect: compared with prior art, the utility model has the advantages that each junction plane to gear pump arranges static seal structure, rely on the less impacting force of Spielpassung between the sealing junction plane and can reach excellent sealing performance, the product classification of waterproof reaches International Industry classification of waterproof standard I PX7 level.
Description of drawings
Fig. 1 is the utility model sectional structure schematic representation;
Fig. 2 is the structural representation of O RunddichtringO in mounting groove;
Fig. 3 installs stressed front and back change in shape contrast schematic representation for the O RunddichtringO, is followed successively by from left to right: before the O RunddichtringO is installed, when the O RunddichtringO is installed in mounting groove, after the installation of O RunddichtringO.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiments only is used for explanation the utility model and is not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present utility model.
As accompanying drawing 1, shown in 2, a kind of refrigerator water supply gear pump, comprise pump casing cover 1, the pump housing 2, gear-box 3, electrical machinery cover 4, above-mentioned part is installed connection successively, offer guidewire port 5 on the electrical machinery cover 4, between pump casing cover 1 and the pump housing 2, between the pump housing 2 and the gear-box 3, offer mounting groove 7 being connected between gear-box 3 and the electrical machinery cover 4 on the junction plane and O RunddichtringO 6 is installed therein, mounting groove 7 is opened on the wherein side of junction plane, the diameter interference 0.3mm of the groove depth of mounting groove 7 and O RunddichtringO 6, guidewire port 5 is equipped with 8 pairs of leads 10 of silica gel waterproof plug and seals, and filling sealer 9 seals silica gel waterproof plugs 8 again.
The utility model adopts the waterproof construction design, and electrical machinery cover 4 and gear-box 3 are made by engineering plastics ABS, and the pump housing 2 and pump casing cover 1 are made by the PPE that meets food security.Connection junction plane between pump casing cover 1, the pump housing 2, gear-box 3, the electrical machinery cover 4 adopts static seal structure, only needs less impacting force just can stop fluid to leak, and reaches excellent sealing performance.During assembling, O RunddichtringO 6 compressed amount of deformation reach 13%, four jiao and use ST2.5 screw-driving, screw-down torque 〉=1.0Nm.Born on the O RunddichtringO 6＞pressure of 1MPa, specified limits seal pressure value is 3 times during greater than design, prevents water depth 200～1000mm.Through test, the utility model is placed after 24 hours in the dark water of 1000mm, and taking-up is opened, and nothing is leaked the motor proper functioning in motor and the gear-box.
Accompanying drawing 3 is depicted as the O RunddichtringO change in shape contrast schematic representation in stressed front and back is installed.For making the O RunddichtringO under fluid pressure action, keep sealing, the specific pressure when this limit seal pressure refers to that seal ring still can keep sealing reliability under fluid pressure action.Consider sealing force P
KAnd the qualitative relationships between the internal pressure P (local nonlinearity) make initial sealing power reach more than the limit seal pressure suitable with the limit seal pressure during actual the use, just safer during use.
Claims (2)
1. refrigerator water supply gear pump, comprise pump casing cover (1), the pump housing (2), gear-box (3), electrical machinery cover (4), above-mentioned part is installed connection successively, offer guidewire port (5) on the described electrical machinery cover (4), it is characterized in that: between described pump casing cover (1) and the described pump housing (2), between the described pump housing (2) and the described gear-box (3), being connected between described gear-box (3) and the described electrical machinery cover (4) is equipped with O RunddichtringO (6) on the junction plane, the mounting groove (7) of described O RunddichtringO (6) is opened on the wherein side of junction plane, the diameter interference 0.3mm of the groove depth of described mounting groove (7) and described O RunddichtringO (6), described guidewire port (5) are equipped with silica gel waterproof plug (8) sealing.
2. a kind of refrigerator water supply gear pump according to claim 1 is characterized in that: described guidewire port (5) filling sealer (9) sealing described silica gel waterproof plug (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187856 CN203189263U (en) | 2013-04-15 | 2013-04-15 | Water supply gear pump for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187856 CN203189263U (en) | 2013-04-15 | 2013-04-15 | Water supply gear pump for refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203189263U true CN203189263U (en) | 2013-09-11 |
Family
ID=49106126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320187856 Expired - Fee Related CN203189263U (en) | 2013-04-15 | 2013-04-15 | Water supply gear pump for refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203189263U (en) |
-
2013
- 2013-04-15 CN CN 201320187856 patent/CN203189263U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20200415 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |