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US-12616188-B2 - Squirrel-proof device

US12616188B2US 12616188 B2US12616188 B2US 12616188B2US-12616188-B2

Abstract

The present utility model relates to a squirrel-proof device set on a supporting rod, comprising housing and connecting parts set between the housing and the supporting rod; wherein the connecting parts enable the housing to move upward along the supporting rod when the housing is exerted a downward force; the first housing is arranged above the second housing, the first and/or the second housing is connected to the supporting rod through the connecting parts; the second housing comprises an inverted circular table bottom housing or an arc bottom housing with diameter decreased from up to down, and the top of the second housing is connected to the bottom of the first housing. The utility model forms a squirrel-proof device that can move vertically and/or rotate, and when squirrels climb over the housing, they are affected by the downward and outward centripetal force, and cannot maintain balance and grip.

Inventors

  • Rui Zhang

Assignees

  • Netvue Technologies Co., Ltd.

Dates

Publication Date
20260505
Application Date
20231221
Priority Date
20230815

Claims (8)

  1. 1 . A squirrel-proof device set on a supporting rod comprising: a housing; connecting parts, set between the housing and the supporting rod; wherein, the connecting parts are used for driving the housing to have a trend of moving upwards along the supporting rod when the housing is applied with a downward force; the housing consists of a first housing and a second housing, wherein the first housing is set at a top of the second housing, the first and/or second housing is connected to the supporting rod through the connecting parts, the second housing is an inverted truncated cone shaped bottom housing having a diameter, with the diameter gradually decreased from up to down, and the top of the second housing is connected to a bottom of the first housing; the connecting parts include a connecting base, the connecting base is capable of being flexibly connected to the supporting rod, and the connecting base is connected to the housing; a top of the first housing is set with a first through hole, the first housing is capable of being flexibly nested on the supporting rod through the first through hole, a diameter of the first through hole is smaller than an outer diameter of the connecting base, and a top of the connecting base is connected against or fixedly to the top of the first housing.
  2. 2 . The squirrel-proof device of claim 1 , wherein the first housing is an arc shaped housing with it's diameter gradually increased from up to down.
  3. 3 . The squirrel-proof device of claim 1 , wherein the connecting parts include a fixed base and a spring, wherein the fixed base is set on the supporting rod, the spring is nested on the supporting rod, the bottom of the spring is connected to the fixed base, the top of the spring is connected to the connecting base.
  4. 4 . The squirrel-proof device of claim 1 , wherein the bottom of the second housing is set with a second through hole, and the diameter of the second through hole is larger than the supporting rod.
  5. 5 . The squirrel-proof device of claim 4 , wherein the diameter of the second through hole is three times of the supporting rod.
  6. 6 . The squirrel-proof device of claim 3 , wherein the housing has a length of 40 to 50 cm.
  7. 7 . The squirrel-proof device of claim 6 , wherein the spring has a wire diameter of 1.5 to 3 mm.
  8. 8 . The squirrel-proof device of claim 7 , wherein the spring has a precompression of 20% to 50%.

Description

TECHNICAL FIELD The present utility model relates to a squirrel-proof device. More specifically, the present utility model is directed to a type of device set on the supporting rod for preventing encroachment on bird's nest or other objects from squirrels and other reptile animals. BACKGROUND The nests where the birds inhabit and breed are important and significant for their survival and protection. However, their nests are often encroached by squirrels and other reptile animals who may climb onto the supporting rods or tree branches to eat bird eggs or young birds, or even damage the structure of the nests. This gives rise to serious hazards to birds. To protect bird's nest from attack from squirrels and other reptile animals, some guard devices have been proposed at present. For example, a device for preventing encroachment from squirrels to the bird's nest is disclosed, comprising an inverted conical housing and an electric motor fixed inside the housing. When any squirrel contacts the housing, the motor will drive the housing to rotate, leading to loss of balance and holding power of the squirrel and thereby reaching the purpose of repelling squirrels. However, such device has deficiencies as follows: the device needs power supply and control circuit, which may increase its costs and complexity;the device may cause harm to or trouble the birds, influencing their normal flight and habitat;the device may be failed due to motor fault or housing damage. Therefore, the present utility model aims to provide a simple, effective, safe, environmental squirrel-proof device to solve aforesaid problems. SUMMARY The present utility model aims to provide a squirrel-proof device, set on the supporting rod, for preventing encroachment on bird's nest or other objects from squirrels. To reach aforesaid purposes, the present utility model employs the following technical schemes: a squirrel-proof device, set on a supporting rod, comprising:housing;connecting parts, set between the housing and the supporting rod;wherein, the connecting parts are used for driving the housing to have the trend of moving upwards along the supporting rod when the housing is applied with the downward force;the housing consists of a first housing and a second housing, wherein the first housing is set at the top of the second housing, the first and/or second housing is connected to the supporting rod through the connecting parts, the second housing consists of an inverted circular table shaped bottom housing or an arc shaped bottom housing with diameter gradually decreased from up to down, and the top of the second housing is connected to the bottom of the first housing;further, the first housing is a circular table or an arc shaped housing with diameter gradually increased from up to down;further, the second housing also includes an inverted circular table shaped top housing with diameter gradually increased from down to up or an arc shaped top housing with diameter gradually decreased from down to up;further, the connecting parts include a fixed base, a spring and a connecting base, wherein the fixed base is set on the supporting rod, the spring is nested on the supporting rod, the bottom of the spring is connected to the fixed base, the top of the spring is connected to the connecting base, the connecting base can be flexibly connected to the supporting rod, and the connecting base is connected to the housing;further, the top of the first housing is set with a first through hole, the first housing can be flexibly nested on the supporting rod through the first through hole, the diameter of the first through hole is smaller than the outer diameter of the connecting base, and the top of the connecting base is connected against or fixedly to the top of the first housing.further, the bottom of the second housing is set with a second through hole, and the diameter of the second through hole is larger than the supporting rod.further, the diameter of the second through hole is three times of the supporting rod.further, the housing has a length 40 to 50 cm.further, the spring has a wire diameter 1.5 to 3 mm.further, the spring has a precompression 20% to 50%. Beneficial Effects of the Present Utility Mode The utility model employs the combination of inverted circular table or arc shaped housing and the connecting parts to form a guard device that can move up and down and/or rotate. When squirrels attempt to climb over the housing, they will get the action of downward and outward centripetal force and cannot keep balance and their holding power, thereby reaching the purpose of repelling squirrels. This utility model does not need any power supply or control circuit, which simplifies the structure, reduces costs, improves reliability and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is the structural diagram of the squirrel-proof device in the embodiments of the present utility model. FIG. 2 is the profile diagram of the squirrel-proo