Turnover machine head of canopy

Abstract

The utility model discloses an overturning machine head of a canopy, which belongs to the technical field of canopy accessories and comprises a gear box, a worm gear is rotatably connected to one side inside the gear box, a worm is connected to the side edge of the worm gear, a connecting rod is connected to the lower end of the worm, a pull ring is arranged at the lower end of the connecting rod, and a transmission shaft is connected to the axis of the worm gear. The appearance structure of the gear box is changed to be rectangular, the first fixing hole and the second fixing hole are formed, the number of fastening screws is increased, the structure is fixed more stably, the pull ring, the connecting rod and the worm are of an integrated structure, the structure is simple, installation is convenient, stability is higher, the axis of the worm gear is of a regular hexagon structure, and the service life of the worm gear is prolonged. The transmission shaft is of a regular hexagon structure, adaptability is higher, the transmission shaft is not prone to distortion and deformation, the regular hexagon also meets the standard of workpieces in machinery, machining difficulty is low, the worm gear and the worm are in the transmission ratio of 1: 15, and torsion is more labor-saving and smooth during use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of rain shelter accessories, and particularly relates to a turnover head of a rain shelter. BACKGROUND

[0002] In daily life, many articles need to be placed outside the door, such as a breakfast stall of a small shop, a small shop selling retail articles, etc. However, in most places, there are many rainy seasons. In order to be able to normally set up a stall when it rains, a rain shelter is usually installed at the door of the shop. The conventional rain shelter is fixed at a position and is retracted and extended by a hand lever.

[0003] Chinese patent application No. 201621407730.4 discloses a flexible shaft universal gear box on a rain shelter, comprising a hand lever, a gear box, a flexible shaft, and a rain shelter. The hand lever is connected with a lifting ring through a hook. A connecting shaft is installed above the lifting ring. The connecting shaft is hollow inside and is provided with a flexible shaft connecting sleeve inside. The flexible shaft connecting sleeve is connected with the connecting shaft through an elastic split pin. The flexible shaft connecting sleeve is provided with a flexible shaft inside. The flexible shaft is installed on a mounting seat. The mounting seat is installed at the bottom of the gear box. The gear box is divided into a left side and a right side. The left side and the right side are connected and fixed through a plurality of bolts. A turbine is installed in the gear box. The turbine is connected with a worm on one side. A support shaft is installed on the turbine. The support shaft is provided with the rain shelter. The utility model has the advantages of reasonable structure design, beautiful appearance, and convenient use.

[0004] The above-mentioned patent has the following problems in use: the gear box structure is not stable, the flexible shaft is connected between the pull ring and the worm, the structure is complex, the installation is inconvenient, the stability is poor, the square transmission shaft is in transmission contact with the square shaft, the adaptability is poor, the transmission shaft is easy to be twisted and deformed, and the processing difficulty is high. UTILITY MODEL CONTENTS

[0005] To solve the problems in the above background art, the utility model provides a turnover head of a rain shelter, which has the characteristics of more stable structure, simple structure, convenient installation, higher adaptability, and low processing difficulty.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a turnover head of a rain shelter, comprising a gear box, a worm is rotatably connected to one side of the inside of the gear box, a worm is connected to the side of the worm, a connecting rod is connected to the lower end of the worm, a pull ring is arranged at the lower end of the connecting rod, a transmission shaft is connected to the shaft of the worm, and a plurality of fixed holes one are arranged on the surface of the gear box.

[0007] Preferably, the pull ring, the connecting rod, and the worm are of an integrated structure.

[0008] Preferably, the transmission ratio of the worm gear and the worm is set to 1:15.

[0009] Preferably, the shaft center of the worm gear is provided with a regular hexagonal groove, and the transmission shaft is provided in a regular hexagonal structure.

[0010] Preferably, the gear box is provided in a rectangular structure, and the periphery of the gear box is provided in a cambered surface structure.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses a gear box, which comprises a gear box body, a transmission shaft, a worm gear and a worm, wherein the gear box body is provided with a fixed hole one and a fixed hole two, the transmission shaft is provided with a pull ring and a connecting rod, the worm gear is provided on the transmission shaft, and the worm is provided on the worm gear. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is an internal structure schematic diagram of the gear box of the utility model;

[0015] Figure 3 It is a perspective view of the utility model; Figure 2

[0016] In the drawing: 1, gear box;2, fixed hole one;3, fixed hole two;4, connecting rod;5, pull ring;6, transmission shaft;7, worm gear;8, worm. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Please refer to Figures 1-3 ​The utility model provides following technical scheme: a kind of turnover head of canopy, including gear box 1, the inside one side of gear box 1 is rotatably connected with worm wheel 7, the side of worm wheel 7 is connected with worm 8, the lower end of worm 8 is connected with connecting rod 4, the lower end of connecting rod 4 is provided with pull ring 5, the axis of worm wheel 7 is connected with transmission shaft 6, the surface of gear box 1 is provided with several fixed holes one 2, the side of fixed hole one 2 is provided with fixed hole two 3.

[0019] Specifically, pull ring 5, connecting rod 4 and worm 8 are integrated structure.

[0020] By adopting the above technical scheme, pull ring 5, connecting rod 4 and worm 8 are integrated structure, simple structure, easy to install, higher stability.

[0021] Specifically, the transmission ratio of worm wheel 7 and worm 8 is 1:15.

[0022] By adopting the above technical scheme, it is more labor-saving and smooth when using.

[0023] Specifically, the axis of worm wheel 7 is provided with a regular hexagon slot, and the transmission shaft 6 is a regular hexagonal structure.

[0024] By adopting the above technical scheme, the axis of worm wheel 7 adopts regular hexagonal structure, and the transmission shaft 6 adopts regular hexagonal structure, which has higher adaptability, and the transmission shaft 6 is not easy to twist and deform. Regular hexagon also meets the workpiece standard in machinery, and has low processing difficulty.

[0025] Specifically, the gear box 1 is a rectangular structure, and the periphery of the gear box 1 is an arc surface structure.

[0026] By adopting the above technical scheme, the shape of the gear box 1 is changed to rectangular, fixed hole one 2 and fixed hole two 3 are provided, and the number of fastening screws is increased, so that the structure is more stable.

[0027] The working principle and use process of the utility model are as follows: the shape of the gear box 1 is changed to rectangular, fixed hole one 2 and fixed hole two 3 are provided, and the number of fastening screws is increased, so that the structure is more stable. Pull ring 5, connecting rod 4 and worm 8 are integrated structure, simple structure, easy to install, higher stability. The axis of worm wheel 7 adopts regular hexagonal structure, and the transmission shaft 6 adopts regular hexagonal structure, which has higher adaptability, and the transmission shaft 6 is not easy to twist and deform. Regular hexagon also meets the workpiece standard in machinery, and has low processing difficulty. Worm wheel 7 and worm 8 adopt 1:15 transmission ratio, which is more labor-saving and smooth when using.

[0028] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roll-over head for a marquee comprising a gear box (1) characterised in that: The inside side of the gear box (1) is rotationally connected with a worm gear (7), the side of the worm gear (7) is connected with a worm (8), the lower end of the worm (8) is connected with a connecting rod (4), the lower end of the connecting rod (4) is provided with a pull ring (5), the axis of the worm gear (7) is connected with a transmission shaft (6), the surface of the gear box (1) is provided with a plurality of fixed holes (2), the side of the fixed hole (2) is provided with a fixed hole (3).

2. A roll over machine head for a marquee according to claim 1 wherein: The pull ring (5), the connecting rod (4) and the worm (8) are of an integral structure.

3. A roll over machine head for a marquee as claimed in claim 1 wherein: The transmission ratio of the worm gear (7) and the worm (8) is 1:

15.

4. A roll over machine head for a marquee as claimed in claim 1 wherein: The axis of the worm gear (7) is provided with a regular hexagonal groove, and the transmission shaft (6) is of a regular hexagonal structure.

5. A roll over machine head for a marquee as claimed in claim 1 wherein: The gear box (1) is of a rectangular structure, and the periphery of the gear box (1) is of an arc surface structure.

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