Dustproof damping structure of electric supporting rod

Abstract

The utility model belongs to the technical field of automobile accessories, and particularly relates to an electric supporting rod dustproof damping structure which comprises a supporting cylinder body and a telescopic rod which are sleeved with each other, the top of the supporting cylinder body is sleeved with an installation sleeve, a damping sleeve is arranged on the inner side of the top of the installation sleeve, and a guide groove is spirally formed in the bottom of the telescopic rod. A telescopic assembly extending into the guide groove is arranged in the middle of the damping sleeve in a penetrating mode, and a bearing is arranged between the top of the damping sleeve and the inner wall of the mounting sleeve. When the telescopic rod extends out of the supporting cylinder body, the telescopic assembly slides in the guide groove and drives the damping sleeve to rotate, and when the telescopic rod retracts, the telescopic assembly drives the damping sleeve to reset, so that dust at the top of the supporting cylinder body can be cleaned by the damping sleeve through one stroke, and meanwhile, the damping sleeve can rotate more smoothly through the bearing.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile accessories, and in particular relates to a dust-proof damping structure of an electric strut. Background Art

[0002] The opening and closing of the front trunk of the car is realized by the electric strut, which greatly improves the convenience of the car. The existing electric struts lack a reliable dustproof structure design. When the car is driving in a complex environment, the telescopic part of the electric strut is easy to get dust, which needs to be cleaned regularly. When cleaning, the electric strut needs to be disassembled, which is a complicated operation. If it is not cleaned, the accumulated dust is easy to cause the electric strut to wear and damage, thereby affecting the service life and reliability of the electric strut;

[0003] Patent No. CN219061331U discloses a dustproof electric support rod for trunk. This technology discloses "including a dustproof cover and a dust scraping mechanism, the dustproof cover is rotatably mounted on one end of the support rod sleeve near the telescopic rod, a receiving cavity is formed between the dustproof cover and the telescopic rod, the dust scraping mechanism is located in the receiving cavity, the dustproof cover drives the dust scraping mechanism to reciprocate in the receiving cavity by rotation, and has technical features such as ensuring the cleanliness of the area between the support rod sleeve and the telescopic rod";

[0004] However, the dust cover of the electric strut needs to be manually rotated by the user to clean the dust. This manual cleaning method is not only inefficient, but also time-consuming and labor-intensive to clean regularly, which is not conducive to practical use.

[0005] In order to solve the above problems, the present application proposes an electric strut dust-proof damping structure. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides an electric support rod dust-proof damping structure, which has the characteristic of automatically cleaning the top of the support cylinder when the telescopic rod is running.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric strut dust-proof and damping structure, comprising a supporting cylinder body and a telescopic rod which are sleeved with each other, the top of the supporting cylinder body is sleeved with a mounting sleeve, the top inner side of the mounting sleeve is provided with a damping sleeve, the bottom of the telescopic rod is spirally provided with a guide groove, the middle part of the damping sleeve is penetrated by a telescopic component extending to the inside of the guide groove, and a bearing is provided between the top of the damping sleeve and the inner wall of the mounting sleeve.

[0008] As a preferred dust-proof damping structure of an electric support rod of the utility model, the bottom of the damping sleeve is provided with a scraper abutting against the top end of the support cylinder body.

[0009] As a preferred dust-proof and damping structure of an electric support rod of the utility model, a line connecting the front end and the end of the guide groove is parallel to the telescopic direction of the telescopic rod.

[0010] As a preferred dust-proof and damping structure of an electric strut of the utility model, the front end and the rear end of the guide groove are provided with a rod withdrawal groove with a gradually decreasing depth.

[0011] As a preferred dust-proof and damping structure of an electric support rod of the utility model, the telescopic assembly includes an extrusion rod passing through the scraper, a limit rod is provided at one end of the extrusion rod away from the telescopic rod, and a compression spring is provided between one end of the extrusion rod and the inner wall of the mounting sleeve.

[0012] As a preferred dust-proof and damping structure of an electric strut of the utility model, the other end of the extrusion rod extends to the inside of the guide groove, and a ball is rotatably provided inside the other end of the extrusion rod.

[0013] As a preferred dust-proof and damping structure of an electric strut of the utility model, a limiting groove is provided on the inner wall of the mounting sleeve, and one end of the limiting rod can extend into the limiting groove.

[0014] Compared with the prior art, the beneficial effect of the utility model is that when the telescopic rod is extended in the supporting cylinder body, the telescopic assembly slides in the guide groove and drives the damping sleeve to rotate; when the telescopic rod is retracted, the telescopic assembly drives the damping sleeve to reset, so that the damping sleeve can automatically clean the dust on the top of the supporting cylinder body in one stroke, and the bearing can ensure that the damping sleeve rotates more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a partial cross-sectional view of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the damping sleeve in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the guide groove in the utility model;

[0020] Figure 5 for Figure 2 A partial enlarged view of point A in the middle.

[0021] In the figure: 1. Support cylinder body; 2. Telescopic rod; 3. Mounting sleeve; 4. Damping sleeve; 401. Scraper; 5. Guide groove; 501. Retractor groove; 6. Telescopic assembly; 601. Extrusion rod; 602. Limit rod; 603. Compression spring; 604. Ball; 7. Bearing; 8. Limit groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] like Figure 1 , Figure 2 and Figure 3 As shown;

[0025] A dust-proof and damping structure for an electric strut includes a supporting cylinder body 1 and a telescopic rod 2 which are sleeved with each other, a mounting sleeve 3 being sleeved on the top of the supporting cylinder body 1, a damping sleeve 4 being provided on the inner side of the top of the mounting sleeve 3, a guide groove 5 being spirally opened on the bottom of the telescopic rod 2, a telescopic component 6 extending to the inside of the guide groove 5 being penetrated through the middle of the damping sleeve 4, a bearing 7 being provided between the top of the damping sleeve 4 and the inner wall of the mounting sleeve 3, and a scraper 401 being provided at the bottom of the damping sleeve 4 which abuts against the top of the supporting cylinder body 1.

[0026] It should be noted that: in this embodiment, the inner wall of the damping sleeve 4 is in contact with the outer wall of the telescopic rod 2, thereby achieving sealing between the telescopic rod 2 and the support cylinder body 1, and the mounting sleeve 3 is detachably fixed on the outer side of the top of the support cylinder body 1 by bolts or screw connections.

[0027] In this embodiment: when the telescopic rod 2 is extended in the supporting cylinder body 1, the telescopic assembly 6 slides in the guide groove 5 and drives the damping sleeve 4 to rotate. When the telescopic rod 2 is retracted, the telescopic assembly 6 drives the damping sleeve 4 to reset. In this way, the damping sleeve 4 can automatically clean the dust on the top of the supporting cylinder body 1 in one stroke, and the bearing 7 can ensure that the damping sleeve 4 rotates more smoothly.

[0028] like Figure 4 As shown;

[0029] In an optional embodiment, a line connecting the front end and the rear end of the guide groove 5 is parallel to the telescopic direction of the telescopic rod 2 , and the front end and the rear end of the guide groove 5 are both provided with a rod withdrawal groove 501 with a gradually decreasing depth.

[0030] In this embodiment, the extension direction of the rod withdrawal groove 501 is parallel to the extension direction of the telescopic rod 2 , and one end of the rod withdrawal groove 501 is smoothly transitioned to the guide groove 5 .

[0031] like Figure 5 As shown;

[0032] In an optional embodiment, the telescopic assembly 6 includes an extrusion rod 601 that passes through the scraper 401, and a limiting rod 602 is provided at one end of the extrusion rod 601 away from the telescopic rod 2. A compression spring 603 is provided between one end of the extrusion rod 601 and the inner wall of the mounting sleeve 3. The other end of the extrusion rod 601 extends to the inside of the guide groove 5, and a ball 604 is provided inside the other end of the extrusion rod 601 for rotation. A limiting groove 8 is provided on the inner wall of the mounting sleeve 3, and one end of the limiting rod 602 can extend to the inside of the limiting groove 8.

[0033] In this embodiment: when the telescopic rod 2 is extended in the supporting cylinder body 1, the extrusion rod 601 first enters the rod withdrawal groove 501 at the top of the telescopic rod 2, and the extrusion rod 601 gradually extends and enters the guide groove 5 along the rod withdrawal groove 501. The ball 604 is in close contact with the inner wall of the guide groove 5, and the sliding friction can be replaced by rolling friction, thereby avoiding the extrusion rod 601 from getting stuck in the guide groove 5.

[0034] The working principle and use process of the utility model are as follows: in the initial position, the extrusion rod 601 and the rod withdrawal grooves 501 at both ends of the guide groove 5 are located on the same straight line, the outer wall of the telescopic rod 2 squeezes the extrusion rod 601 and causes the limiting rod 602 to enter the limiting groove 8, at which time the damping sleeve 4 cannot rotate; when the telescopic rod 2 is extended in the supporting cylinder body 1, the extrusion rod 601 first enters the rod withdrawal groove 501 at the top of the telescopic rod 2, the extrusion rod 601 gradually extends and enters the guide groove 5 along the rod withdrawal groove 501, and at the same time the compression spring 603 drives the limiting rod 602 to leave The telescopic rod 2 is extended fully, and the extrusion rod 601 leaves the guide groove 5 along the rod withdrawal groove 501 at the bottom of the telescopic rod 2. At the same time, the outer wall of the telescopic rod 2 squeezes the extrusion rod 601 and makes the limiting rod 602 enter the limiting groove 8. When the telescopic rod 2 is retracted in the supporting cylinder 1, the damping sleeve 4 rotates in the opposite direction and uses the scraper 401 to clean the dust on the top of the supporting cylinder 1 again.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An electric support rod dust damping structure, comprising a support cylinder (1) and a telescopic rod (2) which are mutually sleeved, characterized in that: The top of the support cylinder body (1) is sleeved with a mounting sleeve (3), the inner side of the top of the mounting sleeve (3) is provided with a damping sleeve (4), the bottom of the telescopic rod (2) is spirally provided with a guide groove (5), the middle of the damping sleeve (4) is penetrated by a telescopic component (6) extending into the inside of the guide groove (5), and a bearing (7) is provided between the top of the damping sleeve (4) and the inner wall of the mounting sleeve (3).

2. The dust-proof damping structure of the electric strut according to claim 1 is characterized in that: The bottom of the damping sleeve (4) is provided with a scraper (401) that abuts against the top end of the supporting cylinder body (1).

3. The dust-proof damping structure of the electric strut according to claim 2 is characterized in that: A line connecting the front end and the rear end of the guide groove (5) is parallel to the telescopic direction of the telescopic rod (2).

4. The dust-proof damping structure of the electric strut according to claim 3 is characterized in that: The front end and the rear end of the guide groove (5) are both provided with a rod withdrawal groove (501) with a gradually decreasing depth.

5. The dust-proof damping structure of the electric strut according to claim 4 is characterized in that: The telescopic assembly (6) comprises an extrusion rod (601) penetrating the scraper (401), a limiting rod (602) being provided at one end of the extrusion rod (601) away from the telescopic rod (2), and a compression spring (603) being provided between one end of the extrusion rod (601) and the inner wall of the mounting sleeve (3).

6. The dust-proof damping structure of the electric strut according to claim 5, characterized in that: The other end of the extrusion rod (601) extends to the inside of the guide groove (5), and a ball (604) is rotatably provided inside the other end of the extrusion rod (601).

7. The dust-proof damping structure of the electric strut according to claim 6, characterized in that: The inner wall of the installation sleeve (3) is provided with a limiting groove (8), and one end of the limiting rod (602) can extend into the inside of the limiting groove (8).

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