Umbrella cloth tightness adjusting device

Abstract

The utility model discloses an umbrella cloth tightness adjusting device which comprises an installation sleeve shell and an installation connecting piece connected with the installation sleeve shell in a sliding mode. A tensioning adjusting piece is arranged between the installation connecting piece and the installation sleeve shell. The tensioning adjusting piece is used for controlling the mounting connecting piece to move in the axial direction of the mounting sleeve shell. An umbrella cloth fixing part is arranged at the end of the installation connecting piece, and a fixing face used for fixing umbrella cloth is arranged on the umbrella cloth fixing part. According to the utility model, the tensioning adjusting piece is arranged between the mounting connecting piece and the mounting sleeve shell; the tensioning adjusting piece is used for controlling the installation connecting piece to move in the axial direction of the installation sleeve shell, so that the tensioning state of the umbrella cloth fixed to the outer end of the installation connecting piece is adjusted, and the umbrella cloth can adapt to different size installation tolerances and external temperature differences.

Description

Technical Field

[0001] The utility model belongs to the technical field of umbrella cloth installation, and particularly relates to an umbrella cloth tension adjustment device. Background Art

[0002] In the prior art, the sewing process of the umbrella cloth and the umbrella ribs is complicated, the production efficiency is low, and a lot of manpower is required. Due to the tolerance and assembly error of the size of the umbrella ribs and umbrella cloth, the temperature difference in different seasons and time periods, the different thermal expansion and contraction coefficients of the umbrella cloth and the umbrella ribs, etc., will cause the problem of the umbrella cloth being too tight or too loose during the product manufacturing and use. If the umbrella cloth is too tight, the umbrella ribs will be in tension for a long time, which will affect the service life of the umbrella frame and the umbrella cloth at the same time. If it is too loose, the umbrella cloth will easily fall off and wrinkle, affecting the use and appearance of the umbrella.

[0003] At the same time, when the umbrella cloth and the umbrella ribs are sewn together, since the end edges of the umbrella ribs are mostly arc-shaped, it is difficult to sew the edge of the umbrella cloth and the outer end of the umbrella ribs. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the utility model provides a method for solving the technical problems that the umbrella cloth is too tight or loose due to external factors, and is difficult to sew.

[0005] To achieve the above purpose, the specific technical solution of the utility model is as follows:

[0006] A device for adjusting the tension of an umbrella cloth comprises a mounting sleeve and a mounting connector slidably connected to the mounting sleeve. A tensioning adjusting member is arranged between the mounting connector and the mounting sleeve. The tensioning adjusting member is used to control the axial movement of the mounting connector along the mounting sleeve.

[0007] An umbrella cloth fixing portion is arranged at the end of the installation connector, and a fixing surface for fixing the umbrella cloth is arranged on the umbrella cloth fixing portion.

[0008] Furthermore, the fixing surface is a sewing surface.

[0009] Furthermore, the installation connector includes a sliding sleeve and a guide column arranged on the sliding sleeve. The installation sleeve shell is provided with a guide limit hole matched with the guide column. The inner end of the guide column passes through the guide limit hole.

[0010] Furthermore, the tensioning adjustment member is a reset spring, which is sleeved on the guide column, and whose two ends respectively abut against the inner end of the sliding sleeve and the inner end of the mounting sleeve.

[0011] Furthermore, the two ends of the mounting housing are divided into an open end and a limit end. A limit baffle is arranged on the limit end. The guide limit hole is provided on the limit baffle. The inner end of the reset spring abuts against the limit baffle.

[0012] Furthermore, a limiting boss is arranged on the inner end of the guide column, and the limiting boss is a wedge structure with an arc inclined surface arranged on the outer side.

[0013] Furthermore, the umbrella cloth fixing part comprises a connecting section and a sewing section which are connected in sequence. The sewing surface is arranged on the sewing section.

[0014] Furthermore, the sewing section has a fan-shaped structure.

[0015] Furthermore, a sewing groove is provided on one side surface of the sewing section.

[0016] Furthermore, a stop edge is provided at the outer edge of the open end.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. The utility model provides a tensioning adjustment member between the mounting connector and the mounting sleeve; the tensioning adjustment member is used to control the axial movement of the mounting connector along the mounting sleeve, thereby adjusting the tension state of the umbrella cloth fixed to the outer end of the mounting connector, so that the umbrella cloth can adapt to installation tolerances of different sizes and external temperature differences.

[0019] 2. The utility model provides a fan-shaped umbrella cloth fixing part at the outer end of the mounting connector, and a sewing groove is provided on the umbrella cloth fixing part structure. The umbrella cloth is sewn on the fan-shaped structure, and the plane is processed, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a side sectional view of the utility model;

[0022] Figure 3 It is a schematic diagram of the relative positions of the limiting boss and the limiting baffle in the utility model;

[0023] Figure 4 It is a structural schematic diagram of the installation housing and the installation connecting piece in the utility model.

[0024] Figure numerals: 1, rib; 2, mounting connector; 2-1, sliding sleeve; 2-2, guide column; 2-3, limiting boss; 3, mounting shell; 3-1, guide limiting hole; 3-2, limiting baffle; 3-3, baffle edge; 4, umbrella cloth fixing part; 4-1, sewing groove; 5, tensioning adjustment piece. DETAILED DESCRIPTION

[0025] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] The utility model will be further described below in conjunction with the accompanying drawings.

[0027] like Figure 1 and 2 As shown, an umbrella cloth tension adjustment device is arranged at the end of an umbrella rib 1, comprising a mounting sleeve 3 inserted and fixed at the end of the umbrella rib 1, and a mounting connector 2 slidably connected to the mounting sleeve 3. An umbrella cloth fixing portion 4 is arranged at the outer end of the mounting connector 2. A fixing surface for fixing the umbrella cloth is arranged on the umbrella cloth fixing portion 4.

[0028] A tensioning adjusting member 5 is provided between the mounting connector 2 and the mounting housing 3. The tensioning adjusting member 5 is used to control the mounting connector 2 to move inward or outward along the axial direction of the mounting housing 3. When in use, the inward or outward movement of the mounting connector 2 drives the umbrella cloth to be tensioned outward or relaxed inward, so that the umbrella cloth can maintain tension in different environments without changing.

[0029] like Figure 2 As shown, the installation connector 2 includes an integrally injection-molded sliding sleeve 2-1 and a guide column 2-2. The outer shell size of the sliding sleeve 2-1 is slightly smaller than the inner cavity size of the installation sleeve shell 3. The guide column 2-2 is arranged in the sliding sleeve 2-1, and the end extends to the outside of the sliding sleeve 2-1, and is slidably connected to the inner end of the installation sleeve shell 3. The tension adjustment member 5 for controlling the sliding of the installation connection adopts a reset spring. The reset spring is sleeved on the guide column 2-2, and the two ends respectively abut against the inner end of the sliding sleeve 2-1 and the inner end of the installation sleeve shell 3. By setting the reset spring, the sliding sleeve 2-1 can be automatically adjusted inward or outward according to the tension of the umbrella cloth.

[0030] like Figure 2 and 4 As shown, the two ends of the installation cover 3 are an open end and a limit end. A stop edge is provided at the outer edge of the open end to limit the limit position of the installation cover 3 inserted into the umbrella rib 1. The limit end is used to limit the installation connector 2 from sliding outward to the limit position, thereby preventing the installation connector 2 from separating from the installation cover 3.

[0031] Specifically, if Figure 2 and 3As shown, a limit baffle 3-2 is provided at the limit end of the mounting housing 3. A guide limit hole 3-1 is provided on the limit baffle 3-2 to match the guide post 2-2 on the mounting connector 2. The inner end of the guide post 2-2 passes through the guide limit hole 3-1. A limit boss 2-3 integrally formed therewith is provided on the inner end of the guide post 2-2. The limit boss 2-3 is a wedge structure with an arc slope on the outer side. The inner end of the arc slope is tangent to the inner end edge of the guide post 2-2.

[0032] The edge of the guide limit hole 3-1 that matches the limit boss 2-3 is made of plastic. During installation, the installation connector 2 is squeezed inwardly. During the squeezing process, the plastic is deformed, so that the limit boss 2-3 set at the inner end of the installation connector 2 can pass through the guide limit hole 3-1. At the same time, the deformation of the edge of the guide limit hole 3-1 is restored, thereby preventing the installation connector 2 from detaching outward.

[0033] like Figure 3-4 As shown, the umbrella cloth fixing part 4 is arranged at the outer end of the sliding sleeve 2-1, and is integrally injection molded with the sliding sleeve 2-1. The umbrella cloth fixing part 4 is divided into a connecting section and a sewing section. The fixing surface is arranged on the sewing section. The umbrella cloth covering the umbrella rib 1 is fixed to the sewing section by sewing. The fixing surface is the sewing surface of the umbrella cloth. The inner end of the connecting section is bent so that the sewing surface on the sewing section is parallel to the sliding direction of the sliding sleeve 2-1. The sewing section is fan-shaped, and its bottom surface constitutes a sewing surface for sewing the edge of the umbrella cloth. The sewing surface is horizontal. During installation, the umbrella cloth covers the umbrella rib 1, and the outer edge is in contact with the sewing surface. The edge of the umbrella cloth is fixed by sewing. By sewing the umbrella cloth on the fan-shaped sewing surface, the contact area of ​​the umbrella cloth is increased, so that the connection strength at the edge of the umbrella cloth is enhanced and durable.

[0034] In this embodiment, a sewing groove 4-1 is provided on the top surface of the sewing section. The arrangement of the sewing groove 4-1 facilitates the machine to determine the sewing position.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An umbrella cloth tension adjustment device, comprising a mounting shell (3) and a mounting connector (2) slidably connected to the mounting shell (3); characterized in that: A tensioning adjustment member (5) is provided between the installation connecting member (2) and the installation sleeve (3); the tensioning adjustment member (5) is used to control the axial movement of the installation connecting member (2) along the installation sleeve (3); An umbrella cloth fixing portion (4) is provided at the end of the installation connector (2), and a fixing surface for fixing the umbrella cloth is provided on the umbrella cloth fixing portion (4).

2. The umbrella cloth tension adjustment device according to claim 1, characterized in that: The fixing surface is a sewing surface.

3. The umbrella cloth tension adjustment device according to claim 2, characterized in that: The installation connector (2) comprises a sliding sleeve (2-1) and a guide column (2-2) arranged on the sliding sleeve (2-1); the installation sleeve shell (3) is provided with a guide limit hole (3-1) matching with the guide column (2-2); the inner end of the guide column (2-2) passes through the guide limit hole (3-1).

4. The umbrella cloth tension adjustment device according to claim 3, characterized in that: The tensioning adjustment member (5) is a return spring, which is sleeved on the guide column (2-2), and whose two ends respectively abut against the inner end of the sliding sleeve (2-1) and the inner end of the mounting sleeve shell (3).

5. The umbrella cloth tension adjustment device according to claim 4, characterized in that: The two ends of the installation sleeve (3) are divided into an open end and a limit end; a limit baffle (3-2) is arranged on the limit end; the guide limit hole (3-1) is opened on the limit baffle (3-2); and the inner end of the return spring abuts against the limit baffle (3-2).

6. The umbrella cloth tension adjustment device according to claim 5, characterized in that: A limiting boss (2-3) is arranged on the inner end of the guide column (2-2), and the limiting boss (2-3) is a wedge structure with an arc inclined surface arranged on the outer side.

7. The umbrella cloth tension adjustment device according to claim 2, characterized in that: The umbrella cloth fixing part (4) comprises a connecting section and a sewing section which are connected in sequence; and the sewing surface is arranged on the sewing section.

8. The umbrella cloth tension adjustment device according to claim 7, characterized in that: The sewing section is in a fan-shaped structure.

9. The umbrella cloth tension adjustment device according to claim 7, characterized in that: A sewing groove (4-1) is provided on one side surface of the sewing section.

10. The umbrella cloth tension adjustment device according to claim 5, characterized in that: A stop edge (3-3) is arranged at the outer edge of the open end.

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