Window cleaning device with a rubber strip cover having a disengagement limiter

Abstract

The window cleaner with the rubber strip sheath having the limit of the rubber strip sheath includes a rod body and a scraping head. The scraping head includes a rubber strip, a rubber strip sheath and a base. The rubber strip is fixed in the rubber strip sheath. The base is connected to the end of the rod body. The rubber strip sheath can move in the groove of the base. The limit blocks are fixed on the rubber strip sheaths on both sides of the base. At least one part of the limit blocks cannot move into the groove. The rubber strip sheath can only move between the two limit blocks in the groove.

Description

Technical Field

[0001] The product involved in this utility model belongs to a cleaning product, and in particular a window cleaner with a rubber strip cover having a release limit. Background Technology

[0002] Window cleaners are already a mature product, offering both wiping and scraping functions. This invention only relates to the scraping function. Currently, window cleaners with scraping capabilities include a rod and a scraper head. The scraper head comprises a rubber strip, a rubber strip sleeve, and a base. The rubber strip is a thin, elongated rubber material, approximately 30 cm in length. The rubber strip sleeve is made of aluminum profile and is about 1 cm shorter than the rubber strip. The rubber strip sleeve keeps the rubber strip in a straight working position. There is a cooperating structure between the rubber strip and the rubber strip sleeve to prevent the rubber strip from detaching radially from the sleeve. The front part of the rubber strip scrapes away dirt from the glass surface, while the rear part is fixed inside the rubber strip sleeve. The rubber strip and sleeve can be fixed using adhesive. The rubber strip sheath is fixed in a groove in the base, which is made of plastic. There are various ways to fix the rubber strip sheath to the groove. For example, the groove and the rubber strip sheath may have the same cross-sectional shape, but the groove may be slightly smaller. Alternatively, the base can be boiled in hot water, and the rubber strip sheath and rubber strip can be inserted while the base is heated. Mechanical methods can also be used to press the rubber strip sheath and rubber strip into the groove, securing them within the groove. The groove may also be sized to facilitate insertion, with the rubber strip sheath partially deforming within the groove to increase its size, thus securing it within the groove. Other methods include adhesive bonding and screw fixation. The base is connected to the end of a rod, which can be straight, curved, or U-shaped. The rubber strips are symmetrically distributed with respect to the rod's symmetrical surfaces. The rubber strip sheath and the base must not move relative to each other.

[0003] In the patents I filed on the same day, I submitted patents titled "A Window Cleaner" and "A Glass Cleaner." Claim 1 of both patents describes that the rubber strip sleeve can move within a groove in the base and be locked at a movable position. This means the rubber strip sleeve could potentially come out of the groove; if it does, not only will the product malfunction, but it could also fall and cause injury. This utility model adds limiting blocks, preventing the rubber strip sleeve from detaching from the groove in the base. The rubber strip sleeve can only move within the area between two of the limiting blocks in the groove.

[0004] In the existing technology of current window cleaner products, no patents have been found that limit the release of the rubber strip sleeve of window cleaners, and such window cleaner products have not been seen on the market. Utility Model Content

[0005] The technical problem this invention aims to solve is that, when the rubber strip can move within the groove of the base, the rubber strip will not come off from either side of the groove, thus making the product safer to use.

[0006] To solve the above-mentioned technical problems, the contents of this utility model are as follows:

[0007] A window cleaner with a rubber strip sheath and a release limit includes a rod and a scraper head. The scraper head includes a rubber strip, a rubber strip sheath, and a base. The base is connected to the end of the rod. The rubber strip is fixed inside the rubber strip sheath. The rubber strip sheath can move in a groove in the base and can be locked at the moved position. The feature is that a limiting block is fixed on each side of the rubber strip sheath on both sides of the base, and at least a part of the limiting block will not move into the groove.

[0008] As a preferred embodiment, the limiting block is located in an area less than 12 mm from the end face of the rubber strip sheath in both directions.

[0009] As a further preferred embodiment, the limiting block covers part of the end face and part of the outer surface of the rubber strip sheath.

[0010] As a further preferred embodiment, the limiting block is fixed on both sides of one end face of the rubber strip sheath, the outer dimension of the end face is larger than the dimension of the groove, and the inner dimension of the end face is smaller than the outer surface dimension of the rubber strip sheath.

[0011] As a further preferred embodiment, there are two threaded holes on the outer surface of the rubber strip sheath, and two screws are fixed thereon. The screw caps are fixed to the outer surface of the rubber strip sheath, and the two screws are the limiting blocks.

[0012] As a preferred embodiment, the limiting block is fixed to the rubber strip sleeve with screws.

[0013] As a preferred embodiment, the limiting block is bonded and fixed to the rubber strip sheath with an adhesive.

[0014] As a preferred embodiment, when the portion of the rubber strip that accommodates the rubber strip faces upwards at the end face of the rubber strip sheath, the width should be greater than 8 mm.

[0015] By implementing this utility model, two limiting blocks are fixed on the rubber strip sheath to prevent it from detaching when moving in the groove. The rubber strip sheath can only move within the area between the two limiting blocks in the groove. Furthermore, the limiting blocks are located in areas less than 12 mm from the end face of the rubber strip sheath in both directions, allowing most of the rubber strip sheath to move within the groove. To improve bending strength, the width of the rubber strip sheath is increased. This utility model makes the window cleaning product safer and more effective to use. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a structural schematic diagram of the first embodiment of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the second embodiment of this utility model.

[0019] Figure 3 This is a structural schematic diagram of the third embodiment of this utility model.

[0020] Figure 4 This is an external view of the rubber strip sheath of this embodiment. Detailed Implementation

[0021] like Figure 1 As shown, a window cleaner with a rubber strip sheath and a release limit includes a rod (1) and a scraper head. The scraper head includes a rubber strip (21), a rubber strip sheath (22), and a base (23). The front part of the rubber strip (21) scrapes away dirt from the glass surface, and the rear part of the rubber strip (21) is fixed inside the rubber strip sheath (22). The base (23) is connected to the end of the rod (1). The rubber strip sheath (22) is cut from an aluminum profile, and the base (23) is made of plastic. The lower part of the rubber strip sheath (22) is circular, and the groove of the base (23) is also circular. The groove has a small opening and a large inner opening to prevent the rubber strip sheath (22) from detaching from the opening direction of the groove's cross-section. Figure 1 As shown, there is a threaded hole in the middle of the base (23), which communicates with the groove. The threaded hole is threadedly engaged with the threaded post (231) with a handle. Tightening the threaded post (231) with a handle locks the rubber strip sleeve (22). Loosening the threaded post (231) with a handle allows the rubber strip sleeve (22) to move within the groove. A limiting block (221) is fixed to each of the rubber strip sleeves (22) on both sides of the base (23). The limiting block (221) is made of plastic and covers part of the end face and part of the outer surface of the rubber strip sleeve (22). The wall thickness of the limiting block (221) is uniform at 2.2 mm. It covers the outer surface of the rubber strip sleeve and is much larger than the size of the groove, so it will not move into the groove. The rubber strip sleeve (22) can only move between the two limiting blocks (221) within the groove. Figure 1As shown, the limiting block (221) is fixed to the rubber strip sheath (22) with a countersunk screw (222). The limiting block (221) covers the outer surface of the rubber strip sheath (22) for 5 mm in length and has a wall thickness of 2.2 mm. It is 5 mm on one side and 2.2 mm on the other side of the end face of the rubber strip sheath (22). Therefore, the limiting block (221) is located in an area less than 12 mm away from the end face of the rubber strip sheath (22).

[0022] like Figure 2 As shown, a window cleaner with a rubber strip sheath and a release limit includes a rod (1) and a scraper head. The scraper head includes a rubber strip (21), a rubber strip sheath (22), and a base (23). The front part of the rubber strip (21) scrapes away dirt from the glass surface, and the rear part of the rubber strip (21) is fixed inside the rubber strip sheath (22). The base (23) is connected to the end of the rod (1). The rubber strip sheath (22) is cut from an aluminum profile, and the base (23) is made of plastic. The lower part of the rubber strip sheath (22) is circular, and the groove of the base (23) is also circular. The groove has a small opening and a large inner opening to prevent the rubber strip sheath (22) from detaching from the opening direction of the cross section. Figure 2 As shown, there is a threaded hole in the middle of the base (23), which communicates with the groove. The threaded hole and the threaded post (231) with handle are threadedly engaged. When the threaded post (231) with handle is tightened, the rubber strip sheath (22) is locked. When the threaded post (231) with handle is loosened, the rubber strip sheath (22) moves in the groove. One limiting block (221) is fixed on each of the adhesive strip sleeves (22) on both sides of the base (23). The limiting block (221) is made of plastic and is fixed on both sides of one end face of the adhesive strip sleeve (22). The outer dimension of the end face is larger than the dimension of the groove and will not move into the groove. The inner dimension of the end face is smaller than the outer surface dimension of the adhesive strip sleeve (22). The limiting block inside the adhesive strip sleeve (22) can move into the groove. The limiting block (221) is glued and fixed to the adhesive strip sleeve (22) with adhesive (222). The thickness of the limiting block (221) outside the end face of the adhesive strip sleeve (22) is 2.2 mm, and the length of the limiting block (221) inside the end face of the adhesive strip sleeve (22) is 10 mm. Therefore, the limiting block (221) is in an area less than 12 mm away from the end face of the adhesive strip sleeve (22).

[0023] like Figure 3As shown, a window cleaner with a rubber strip sheath and a release limit includes a rod (1) and a scraper head. The scraper head includes a rubber strip (21), a rubber strip sheath (22), and a base (23). The front part of the rubber strip (21) scrapes away dirt from the glass surface, and the rear part of the rubber strip (21) is fixed inside the rubber strip sheath (22). The base (23) is connected to the end of the rod (1). The rubber strip sheath (22) is cut from an aluminum profile, and the base (23) is made of plastic. The lower part of the rubber strip sheath (22) is circular, and the groove of the base (23) is also circular. The groove has a small opening and a large inner opening to prevent the rubber strip sheath (22) from detaching from the opening direction of the cross section. Figure 1 As shown, there is a threaded hole in the middle of the base (23), which communicates with the groove. The threaded hole is threadedly engaged with the threaded post (231) with a handle. Tightening the threaded post (231) with a handle locks the rubber strip sleeve (22) and the rubber strip (21). Loosening the threaded post (231) with a handle allows the rubber strip sleeve (22) to move within the groove. A screw (221) is fixed to each of the rubber strip sleeves (22) on both sides of the base (23). The screws (221) are the limiting blocks. Figure 3 As shown, the screw head of the screw (221) has a diameter of 4 mm and a height of 2 mm, and is fixed to the outer surface of the rubber strip sheath. This diameter is much larger than the gap between the groove and the rubber strip sheath (22), therefore the screw head of the screw (221) will not move into the groove. The rubber strip sheath (22) can only move between the screw heads of the two screws (221) within the groove. Figure 3 As shown, two screws (221) are fixed at a distance of 6 mm from the end face of the rubber strip sheath (22). Therefore, the screws (221) are all in the area less than 12 mm from the end face of the rubber strip sheath (22).

[0024] like Figure 4 The diagram shows the external shape of the rubber strip sheath according to this embodiment. When the portion accommodating the rubber strip faces upwards on the end face of the sheath, the width is 9 mm, which is greater than 8 mm. Existing products have a width of 6 mm in this direction, thus improving the bending strength in that direction. On the end face of the rubber strip sheath (22), there is a rib running through the width direction, which also improves the bending strength in that direction.

[0025] It should be noted that the above description and specific embodiments only illustrate three representative structural solutions and do not provide a comprehensive explanation. Therefore, they should not be construed as limiting the scope of protection of this utility model. The scope of protection of this utility model is determined by the appended claims.

Claims

1. A window cleaner with a rubber strip sheath having a release limit, comprising a rod and a scraper head, the scraper head comprising a rubber strip, a rubber strip sheath, and a base, the base being connected to the end of the rod, the rubber strip being fixed inside the rubber strip sheath, the rubber strip sheath being movable in a groove in the base and being locked at the moved position, characterized in that: One limiting block is fixed on each of the rubber strip sleeves on both sides of the base, and at least a part of the limiting block will not move into the groove.

2. A window cleaner with a squeegee cover sheath having a limit of extrusion according to claim 1, characterized in that: The limiting block is located in an area less than 12 mm from the end face of the rubber strip in both directions.

3. A window cleaner with a release limit for the rubber strip sheath as described in claim 2, characterized in that: The limiting block covers part of the end face and part of the outer surface of the rubber strip sheath.

4. The window cleaner with the adhesive strip sheath having the limit of extrusion according to claim 2, characterized in that: The limiting block is fixed on both sides of one end face of the rubber strip sheath. The outer dimension of the end face is larger than the dimension of the groove, and the inner dimension of the end face is smaller than the outer surface dimension of the rubber strip sheath.

5. The window cleaner with the adhesive strip sheath having the limit of extrusion according to claim 2, characterized in that: There are two threaded holes on the outer surface of the rubber strip sheath, and two screws are fixed thereon. The screw heads are fixed to the outer surface of the rubber strip sheath, and the two screws are the limiting blocks.

6. A window cleaner with a release limit for the rubber strip sheath according to claim 1, characterized in that: The limiting block is fixed to the rubber strip sleeve with screws.

7. A window cleaner with a release limit on the rubber strip sheath according to claim 1, characterized in that: The limiting block is glued and fixed to the rubber strip sleeve with adhesive.

8. A window cleaner with a release limit for the rubber strip sheath according to claim 1, characterized in that: When the portion of the adhesive strip that accommodates the adhesive strip faces upwards at the end face of the adhesive strip sheath, the width should be greater than 8 mm.

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