Telescopic protective cover for vertical spray header

Abstract

A telescopic protective cover for a vertical spray header is characterized by comprising a protective cover body made of plastic and capable of being stretched or folded in the vertical direction and a supporting rod connected with the lower end of the protective cover body, the protective cover body is composed of a plurality of sleeves, the inner diameters of the sleeves are sequentially increased from top to bottom, and the adjacent sleeves are movably connected in the vertical direction; the sleeves sequentially extend out from top to bottom to form extension of the protective cover, and the sleeves are sequentially overlapped from small to large to form folding of the protective cover. According to the utility model, the plurality of sleeves can extend out or sleeve in sequence to form the extension and folding of the protective cover, the protective cover is supported above the spray head by the support rod to abut against a ceiling when the protective cover is folded, and the protective cover is supported by the spray head when the protective cover is extended, so that the protective cover is buckled on the spray head, and the spray head can be effectively protected; the paint glue is prevented from making contact with the spraying head in the spraying process, covering and taking-out are convenient, operation is easy, and practicability is high.

Description

Technical Field

[0001] The utility model relates to a telescopic protective cover for an upright sprinkler head, which is used to protect the upright sprinkler head during ceiling paint construction. Background Art

[0002] During interior ceiling construction in building and renovation projects, a common tool involves spraying black ceilings. The material typically used is black latex paint, applied using a spraying process. Due to construction requirements, plumbing installations, such as those for fire protection, water, and electricity, should be completed before spraying. Black latex paint is then applied to the ceiling and surrounding the pipelines using a spray gun in a single application. During the spraying process, the upright sprinkler heads in the fire sprinkler system must be covered and protected. Otherwise, the latex paint can easily contaminate the upright sprinkler heads, covering the sprinkler body or temperature sensing element, and causing the release mechanism to stick, affecting the sprinkler's activation and response time. Current measures for protecting finished sprinkler heads include wrapping them with protective film or large-sized masking tape, which is removed after the paint application is complete. This requires workers to frequently ascend and descend before and after the finished product is protected, and the wrapping and removal process can easily damage the sprinkler heads. Upright sprinkler heads are mostly installed above water and electricity pipelines, have a certain length, and are separated from the ceiling at the top. In order to avoid climbing up and down, a protective cover is hung on the sprinkler head. The side opening of the protective cover is connected to the support rod, and the support rod is used to support the protective cover to the height of the sprinkler head, and the protective cover is covered on the sprinkler head through the side opening. This protective cover can avoid climbing up and down, but the side opening of the protective cover will still have glue sprayed from the side opening to the sprinkler head during spraying construction, and the protection reliability is not high. After the sprinkler head comes into contact with latex paint, the sprinkler head structure is easily damaged during the cleaning process, affecting the working performance of the sprinkler head temperature sensing element, reducing its sensitivity, and leaving hidden dangers. Utility Model Content

[0003] The upright telescopic protective cover of the sprinkler head provided by the utility model utilizes multiple sleeves that can be extended or overlapped in sequence to form the extension and retraction of the protective cover. When retracting, the protective cover is supported by a support rod to the top of the sprinkler head and against the ceiling. When extending, the protective cover is supported by the sprinkler head so that the protective cover is buckled on the sprinkler head, thereby forming effective protection for the sprinkler head, avoiding contact between paint and glue and the sprinkler head during spraying, and conveniently buckling and removing the cover, with simple operation and high practicality.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The telescopic protective cover of an upright sprinkler head is characterized in that it includes a protective cover made of plastic that can be extended or retracted vertically and a support rod connected to the lower end of the protective cover. The protective cover is composed of multiple sleeves with increasing inner diameters from top to bottom. Adjacent sleeves are movably connected vertically. Multiple sleeves are extended from top to bottom to form the extension of the protective cover, and multiple sleeves are stacked from small to large to form the retraction of the protective cover.

[0006] Preferably, the sleeve of the middle layer and the sleeve of the bottom layer are both hollow sleeves, the sleeve of the top layer is a barrel-shaped sleeve with a closed upper end face, the top and bottom of the sleeve of the top layer and the sleeve of the middle layer have an annular outer flange folded outward 90 degrees, the top of the sleeve of the middle layer and the sleeve of the bottom layer have an annular inner flange folded inward 90 degrees, the width of the annular outer flange is smaller than the width of the annular inner flange, the width of the annular inner flange is 2~4 mm, and the width of the annular outer flange is 1~2 mm. In the sleeves of adjacent layers, the inner diameter of the lower sleeve is larger than the outer diameter of the annular outer flange of the upper sleeve, and the inner diameter of the annular inner flange of the lower sleeve is smaller than the outer diameter of the annular outer flange of the upper sleeve.

[0007] Preferably, the number of the sleeves is three to five.

[0008] Preferably, the bottom end of the sleeve of the bottom layer has a buckle, and the top of the support rod is snapped into the buckle.

[0009] Preferably, the height of the sleeve is 100-120 mm, and the length of the strut is 2.5-3.0 meters.

[0010] The beneficial effects of the utility model are:

[0011] The utility model discloses an upright telescopic protective cover for a sprinkler head. The protective cover is composed of a plurality of sleeves with increasing inner diameters from top to bottom. Adjacent sleeves are movably connected. Before spraying paint, a support rod is used to support the protective cover to the top of the sprinkler head and against the ceiling. The support of the support rod enables the plurality of sleeves to be stacked in sequence from small to large, and the protective cover is in a retracted state. Then the protective cover is lowered to cover the sprinkler head and the support rod is released. Under the action of gravity, the plurality of sleeves are extended from top to bottom in sequence. The sleeve of the top layer is supported on the sprinkler head. The protective cover is in an extended state to completely cover the sprinkler head. After spraying is completed, the support rod is pushed upward, and the sleeve of the top layer moves upward to press against the ceiling. On the ceiling, multiple sleeves are stacked in sequence from small to large, the protective cover is folded and separated from the sprinkler head, and then the protective cover is driven to move along the ceiling by a support rod. After the protective cover and the sprinkler head are vertically staggered, the support rod is lowered to complete the protection of the sprinkler head during the spraying process. Multiple sleeves can be extended or stacked in sequence to form the extension and retraction of the protective cover. When folding, the support rod is used to support the protective cover to the top of the sprinkler head and against the ceiling. When extending, the sprinkler head is used to support the protective cover so that the protective cover is buckled on the sprinkler head, which can form effective protection for the sprinkler head, avoid contact between paint and glue and the sprinkler head during spraying, and facilitate the buckling and removal of the cover. The operation is simple and the practicability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the telescopic protective cover of an upright sprinkler head when the protective cover is extended.

[0013] Figure 2 Schematic diagram of the bottom sleeve.

[0014] Figure 3 Schematic diagram of the middle layer sleeve.

[0015] Figure 4 Schematic diagram of the top sleeve.

[0016] Figure 5 Schematic diagram of the elongation of the sleeves of adjacent layers.

[0017] Figure 6 Schematic diagram of the overlapping of sleeves in adjacent layers. DETAILED DESCRIPTION

[0018] The following combination Figures 1 to 6 The embodiments of the present utility model are described in detail.

[0019] The telescopic protective cover of an upright sprinkler head is characterized in that it includes a protective cover 1 made of plastic material that can be extended or retracted vertically and a support rod 2 connected to the lower end of the protective cover 2. The protective cover 1 is composed of multiple sleeves 3 with increasing inner diameters from top to bottom. Adjacent sleeves 3 are movably connected vertically. Multiple sleeves 3 are extended from top to bottom to form the extension of the protective cover 1, and multiple sleeves 3 are stacked from small to large to form the retraction of the protective cover 1.

[0020] The telescopic protective cover of the upright sprinkler head described above, the protective cover 1 is composed of a plurality of sleeves 3 with increasing inner diameters from top to bottom, and the adjacent sleeves 3 are movably connected. Before spraying the paint, the protective cover 1 is supported by the support rod 2 to the top of the sprinkler head and against the ceiling. The support of the support rod 2 enables the plurality of sleeves 3 to be stacked in sequence from small to large, and the protective cover 1 is in a retracted state. Then the protective cover 1 is lowered to cover the sprinkler head and the support rod 2 is released. Under the action of gravity, the plurality of sleeves 3 are extended from top to bottom in sequence, and the sleeve 3 of the top layer is supported on the sprinkler head. The protective cover 1 is in an extended state to completely cover the sprinkler head. After spraying is completed, the support rod 2 is pushed upward, and the sleeve 3 of the top layer is moved upward. The protective cover 1 is folded and separated from the sprinkler head, and then the support rod 2 is used to drive the protective cover 1 to move along the ceiling. After the protective cover 1 and the sprinkler head are vertically staggered, the support rod is lowered to complete the protection of the sprinkler head during the spraying process. The multiple sleeves 3 can be extended or overlapped in sequence to form the extension and retraction of the protective cover. When folding, the support rod 2 is used to support the protective cover 1 to the top of the sprinkler head and against the ceiling. When extending, the sprinkler head is used to support the protective cover 1 so that the protective cover 1 is buckled on the sprinkler head, which can form effective protection for the sprinkler head, avoid contact between the paint glue and the sprinkler head during spraying, and facilitate the buckling and removal of the cover. The operation is simple and the practicability is high.

[0021] Among them, the sleeve 3 of the middle layer and the sleeve 3 of the bottom layer are both hollow sleeves, the sleeve 3 of the top layer is a barrel-shaped sleeve with a closed upper end face, the top and bottom of the sleeve 3 of the top layer and the sleeve 3 of the middle layer have an annular outer flange 4 folded outward 90 degrees, the top of the sleeve 3 of the middle layer and the sleeve 3 of the bottom layer have an annular inner flange 5 folded inward 90 degrees, the width of the annular outer flange 4 is smaller than the width of the annular inner flange 5, the width of the annular inner flange 5 is 2~4 mm, and the width of the annular outer flange 4 is 1~2 mm. In the sleeves 3 of adjacent layers, the inner diameter of the lower sleeve 3 is larger than the outer diameter of the annular outer flange 4 of the upper sleeve 3, and the inner diameter of the annular inner flange 5 of the lower sleeve 3 is smaller than the outer diameter of the annular outer flange 4 of the upper sleeve 3. As shown in the figure, the protective cover has 5 sleeves 3. The top of the sleeve 3 of the bottom layer has an annular inner flange 5. The tops of the sleeves 3 of the middle layer, i.e., the second, third and fourth layers, all have annular inner flange 5, and the bottom and top layers all have annular outer flange 4. The bottom and top of the sleeve 3 of the top layer all have annular outer flange 4. When the protective cover is in a folded state, the top layer sleeve enters the fourth layer sleeve, the fourth layer sleeve enters the third layer sleeve, the third layer sleeve enters the second layer sleeve, and the second layer sleeve enters the bottom layer sleeve, so that multiple sleeves 3 are stacked in sequence from small to large, from Figure 6 It can be seen from the figure that at this time, the annular outer flange 4 of the top of the upper sleeve in the adjacent sleeve layer abuts against the annular inner flange 5 of the top of the lower sleeve layer, so that the sleeves 3 are stacked in order from small to large and will not fall off; when the protective cover is in the extended state, Figure 5 It can be seen that the annular inner flange 5 at the top of the lower sleeve in the adjacent layers is hung on the annular outer flange 4 at the bottom of the upper sleeve, so that the sleeves 3 are extended from top to bottom in sequence without falling off; the annular inner flange 5 and the annular outer flange 4 are arranged on the sleeve 3, so that the adjacent sleeves 3 can be stacked and folded together, and can also be extended and hung to realize the extension and retraction of the protective cover.

[0022] The number of sleeves 3 is three to five and can be adjusted according to the height of the shower head. When the shower head is higher, the number of sleeves 3 is increased accordingly to increase the length of the protective cover when extended so that the protective cover can completely cover the shower head.

[0023] Among them, the bottom end of the sleeve 3 of the bottom layer has a buckle 31, and the top of the support rod 2 is snapped into the buckle 31. The support rod 2 and the sleeve 3 are easy to fold and assemble, which makes it easy to connect the support rod 2 to the protective cover 1, and can be disassembled after use for easy storage.

[0024] The sleeve height is 100-120 mm, and the support rod length is 2.5-3.0 meters. The height of a single sleeve 3 is 100-120 mm. When the protective cover 1 is in the retracted state, the height of the protective cover 1 is 100-120 mm, which is less than the distance from the top of the sprinkler head to the ceiling. The retracted protective cover 1 can be supported above the sprinkler head to align with the sprinkler head. When the protective cover 1 is extended downward, it can completely cover the sprinkler head. The support rod length of 2.5-3.0 meters can support the protective cover 1 until it contacts the ceiling.

[0025] The above is a complete description of the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the embodiments described are only part of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

Claims

1. Vertical sprinkler head telescopic protective cover, characterized by: The utility model comprises a protective cover made of plastic material and capable of being extended or retracted vertically, and a support rod connected to the lower end of the protective cover. The protective cover is composed of multiple sleeves with inner diameters increasing from top to bottom. Adjacent sleeves are movably connected vertically. Multiple sleeves are extended from top to bottom to form the extension of the protective cover, and multiple sleeves are stacked from small to large to form the retraction of the protective cover.

2. The telescopic protective cover for an upright sprinkler head according to claim 1, characterized in that: The sleeve of the middle layer and the sleeve of the bottom layer are both hollow sleeves, and the sleeve of the top layer is a barrel-shaped sleeve with a closed upper end face. The top and bottom of the sleeve of the top layer and the sleeve of the middle layer have an annular outer flange folded outward 90 degrees, and the top of the sleeve of the middle layer and the sleeve of the bottom layer have an annular inner flange folded inward 90 degrees. The width of the annular outer flange is smaller than the width of the annular inner flange. The width of the annular inner flange is 2~4 mm, and the width of the annular outer flange is 1~2 mm. In the sleeves of adjacent layers, the inner diameter of the lower sleeve is larger than the outer diameter of the annular outer flange of the upper sleeve, and the inner diameter of the annular inner flange of the lower sleeve is smaller than the outer diameter of the annular outer flange of the upper sleeve.

3. The telescopic protective cover for an upright sprinkler head according to claim 2, characterized in that: The number of sleeves is three to five.

4. The telescopic protective cover for an upright sprinkler head according to claim 1, characterized in that: The bottom end of the bottom sleeve has a buckle, and the top of the support rod is snapped into the buckle.

5. The telescopic protective cover for an upright sprinkler head according to claim 1, characterized in that: The height of the sleeve is 100~120 mm, and the length of the support pole is 2.5~3.0 meters.

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