Transmission shaft assembly with good dustproof effect

Abstract

The utility model relates to the technical field of transmission shafts, in particular to a transmission shaft assembly with a good dustproof effect, which comprises a transmission shaft body, and a dustproof mechanism is arranged on the outer wall of the transmission shaft body. The dustproof mechanism comprises an upper dustproof cover rotationally connected to the outer wall of the transmission shaft body, a lower dustproof cover is slidably connected to the bottom of the upper dustproof cover, connecting sleeves are fixedly connected to the front face and the back face of the upper dustproof cover, and connecting pins are fixedly connected to the positions, corresponding to the connecting sleeves, of the outer wall of the lower dustproof cover. A clamping block is fixedly connected to the position, above the connecting sleeve, of the top end of the connecting pin, a limiting ring is rotationally connected to the top of the connecting sleeve, and a through groove is formed in the limiting ring. The problems that after a dust cover on an existing transmission shaft assembly is damaged, disassembly is difficult, and operation is tedious are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission shafts, in particular to a transmission shaft assembly with good dustproof effect. Background Art

[0002] The transmission shaft assembly is a device for transmitting power, but the existing transmission shaft assembly still has shortcomings, specifically: it is difficult to remove the dust cover on the existing transmission shaft assembly after it is damaged, and the operation is cumbersome.

[0003] Therefore, a transmission shaft assembly with good dustproof effect is needed to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a transmission shaft assembly with good dustproof effect to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A transmission shaft assembly with good dustproof effect, comprising a transmission shaft body, wherein the outer wall of the transmission shaft body is provided with a dustproof mechanism;

[0007] The dustproof mechanism includes an upper dust cover rotatably connected to the outer wall of the transmission shaft body, the bottom of the upper dust cover is slidably connected to the lower dust cover, the front and back sides of the upper dust cover are fixedly connected to a connecting sleeve, the outer wall of the lower dust cover is fixedly connected to a connecting pin at the corresponding position of the connecting sleeve, the top of the connecting pin and the top of the connecting sleeve are fixedly connected with a clamping block, the top of the connecting sleeve is rotatably connected to a limiting ring, a through groove is provided inside the limiting ring, a pull rod is slidably connected inside the connecting sleeve and on both sides of the limiting ring, the outer wall of the pull rod is fixedly connected to a pressure plate at a position close to the limiting ring, and the outer wall of the pressure plate is fixedly connected to a compression spring at a position far away from the limiting ring.

[0008] As a preferred solution of the present utility model, the transmission shaft body is made of stainless steel.

[0009] As a preferred solution of the utility model, the upper dust cover, the lower dust cover and the connecting sleeve are all made of aluminum alloy, the upper dust cover and the lower dust cover are both semicircular in structure design, and the connecting pin passes through the connecting sleeve and extends outside the limiting ring.

[0010] As a preferred solution of the utility model, the connecting pin and the clamping block are both made of stainless steel, the shape of the through groove is matched with the shape of the clamping block, and the connection mode between the compression spring and the connecting sleeve is a fixed connection.

[0011] As a preferred solution of the utility model, the pull rod passes through and extends outside the connecting sleeve, and the connection mode between the pressure plate and the limiting ring is a sliding connection.

[0012] As a preferred solution of the utility model, the pressure plate is made of anti-slip rubber, and multiple groups of the connecting sleeves, connecting pins and limiting rings are provided.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, a transmission shaft assembly with good dustproof effect is designed, and the dustproof mechanism in the device is used to protect the transmission shaft body. The transmission shaft body is installed in a suitable position. When the upper dust cover or the lower dust cover is damaged, the transmission shaft body is taken out, and the pull rod is pulled. The pull rod will drive the pressure plate to move outward, and the pressure plate moving outward will no longer press the limit ring. The limit ring is rotated to align the through groove at the top of the limit ring with the block, and the limit ring will no longer jam the block. The lower dust cover is pulled, and the lower dust cover will drive the connecting pin to move downward. The connecting pin exits the limit ring and the connecting sleeve, and the lower dust cover is separated from the upper dust cover. The lower dust cover and the upper dust cover are removed and maintained, which solves the problem that the dust cover on the existing transmission shaft assembly is difficult to disassemble after being damaged, and the operation is cumbersome. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is an exploded view of the three-dimensional structure of the connecting sleeve of the utility model;

[0017] Figure 3 It is a front cross-sectional view of the connecting sleeve of the utility model.

[0018] In the figure: 1. transmission shaft body; 2. dustproof mechanism; 201. upper dust cover; 202. lower dust cover; 203. connecting sleeve; 204. connecting pin; 205. clamping block; 206. limiting ring; 207. through groove; 208. pull rod; 209. pressure plate; 210. compression spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a central element. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0024] A transmission shaft assembly with good dustproof effect, comprising a transmission shaft body 1, and a dustproof mechanism 2 is arranged on the outer wall of the transmission shaft body 1;

[0025] The transmission shaft body 1 is made of stainless steel;

[0026] In this embodiment, reference Figure 2 and Figure 3 The dustproof mechanism 2 includes an upper dust cover 201 rotatably connected to the outer wall of the transmission shaft body 1, a lower dust cover 202 is slidably connected to the bottom of the upper dust cover 201, a connecting sleeve 203 is fixedly connected to the front and back of the upper dust cover 201, a connecting pin 204 is fixedly connected to the outer wall of the lower dust cover 202 and at the corresponding position of the connecting sleeve 203, a block 205 is fixedly connected to the top of the connecting pin 204 and above the connecting sleeve 203, the top of the connecting sleeve 203 is rotatably connected to a limiting ring 206, a through groove 207 is opened inside the limiting ring 206, a pull rod 208 is slidably connected to the inside of the connecting sleeve 203 and on both sides of the limiting ring 206, a pressure plate 209 is fixedly connected to the outer wall of the pull rod 208 and at a position close to the limiting ring 206, and a compression spring 210 is fixedly connected to the outer wall of the pressure plate 209 and at a position away from the limiting ring 206;

[0027] The upper dust cover 201, the lower dust cover 202 and the connecting sleeve 203 are all made of aluminum alloy. The upper dust cover 201 and the lower dust cover 202 are both designed with semicircular structures. The connecting pin 204 passes through the connecting sleeve 203 and extends to the outside of the limiting ring 206. The connecting pin 204 and the block 205 are both made of stainless steel. The shape of the through groove 207 is adapted to the shape of the block 205. The connection mode of the clamping spring 210 and the connecting sleeve 203 is a fixed connection. The pull rod 208 passes through and extends to the outside of the connecting sleeve 203. The connection mode of the pressure plate 209 and the limiting ring 206 is a sliding connection. The pressure plate 209 is made of anti-slip rubber. The connecting sleeve 203, the connecting pin 204, and the limiting ring 206 are all provided with multiple groups. When the upper dust cover 201 or the lower dust cover 202 is damaged, the transmission shaft body 1 is taken out, and the pull rod 208 is pulled, and the pull rod 208 will drive the pressure plate 209 The pressure plate 209 no longer presses the limit ring 206, and the limit ring 206 is rotated to align the through groove 207 at the top of the limit ring 206 with the block 205. The limit ring 206 no longer blocks the block 205, and the lower dust cover 202 is pulled. The lower dust cover 202 will drive the connecting pin 204 to move downward, and the connecting pin 204 withdraws from the limit ring 206 and the connecting sleeve 203, and the lower dust cover 202 is detached from the upper dust cover 201. After the maintenance is completed, the upper dust cover 201 is placed on the top of the transmission shaft body 1, and the lower dust cover 202 is placed on the bottom of the transmission shaft body 1. The connecting pin 204 passes through the connecting sleeve 203 and the limiting ring 206, and the limiting ring 206 is rotated so that the through groove 207 is no longer aligned with the block 205, thereby combining the lower dust cover 202 and the upper dust cover 201 together.

[0028] The working process of the utility model is as follows: when the transmission shaft assembly with good dustproof effect designed by the present invention is in operation, the transmission shaft body 1 is installed in a suitable position; when the upper dust cover 201 or the lower dust cover 202 is damaged, the transmission shaft body 1 is taken out, and the pull rod 208 is pulled, and the pull rod 208 will drive the pressure plate 209 to move outward, and the pressure plate 209 moving outward no longer presses the limit ring 206, and the limit ring 206 is rotated so that the through groove 207 at the top of the limit ring 206 is aligned with the block 205, and the limit ring 206 no longer blocks the block 205, and the lower dust cover 202 is pulled, and the lower dust cover 202 will bring The movable connecting pin 204 moves downward, the connecting pin 204 exits the limiting ring 206 and the connecting sleeve 203, the lower dust cover 202 is separated from the upper dust cover 201, the lower dust cover 202 and the upper dust cover 201 are removed and maintained, after the maintenance is completed, the upper dust cover 201 is placed on the top of the transmission shaft body 1, and then the lower dust cover 202 is placed on the bottom of the transmission shaft body 1, the connecting pin 204 passes through the connecting sleeve 203 and the limiting ring 206, the limiting ring 206 is rotated so that the through groove 207 is no longer aligned with the block 205, thereby combining the lower dust cover 202 and the upper dust cover 201 together.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transmission shaft assembly with good dustproof effect, comprising a transmission shaft body (1), characterized in that: The outer wall of the transmission shaft body (1) is provided with a dust prevention mechanism (2); The dustproof mechanism (2) comprises an upper dustproof cover (201) rotatably connected to the outer wall of the transmission shaft body (1); the bottom of the upper dustproof cover (201) is slidably connected to a lower dustproof cover (202); the front and back sides of the upper dustproof cover (201) are fixedly connected to connecting sleeves (203); the outer wall of the lower dustproof cover (202) is fixedly connected to a connecting pin (204) at a position corresponding to the connecting sleeve (203); the top end of the connecting pin (204) and above the connecting sleeve (203) is fixedly connected to a clamping block (203); 05), the top of the connecting sleeve (203) is rotatably connected to a limiting ring (206), a through groove (207) is provided inside the limiting ring (206), a pull rod (208) is slidably connected inside the connecting sleeve (203) and on both sides of the limiting ring (206), a pressure plate (209) is fixedly connected to the outer wall of the pull rod (208) at a position close to the limiting ring (206), and a compression spring (210) is fixedly connected to the outer wall of the pressure plate (209) at a position away from the limiting ring (206).

2. A transmission shaft assembly with good dustproof effect according to claim 1, characterized in that: The transmission shaft body (1) is made of stainless steel.

3. A transmission shaft assembly with good dustproof effect according to claim 1, characterized in that: The upper dust cover (201), the lower dust cover (202) and the connecting sleeve (203) are all made of aluminum alloy; the upper dust cover (201) and the lower dust cover (202) are both designed as semicircular structures; the connecting pin (204) passes through the connecting sleeve (203) and extends to the outside of the limiting ring (206).

4. The transmission shaft assembly with good dustproof effect according to claim 1, characterized in that: The connecting pin (204) and the clamping block (205) are both made of stainless steel. The shape of the through slot (207) matches the shape of the clamping block (205). The connection mode between the compression spring (210) and the connecting sleeve (203) is a fixed connection.

5. The transmission shaft assembly with good dustproof effect according to claim 1, characterized in that: The pull rod (208) passes through and extends outside the connecting sleeve (203), and the connection mode between the pressing plate (209) and the limiting ring (206) is a sliding connection.

6. A transmission shaft assembly with good dustproof effect according to claim 1, characterized in that: The pressing plate (209) is made of anti-slip rubber, and the connecting sleeve (203), the connecting pin (204), and the limiting ring (206) are all provided in multiple groups.

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