Electric supporting rod for automobile trunk

Abstract

The electric supporting rod for the automobile trunk comprises an outer pipe, the middle of the outer pipe is connected with an inner pipe in a sliding mode, and a sealing ring sealed with the inner pipe is installed on the inner wall of an outlet in the left side of the outer pipe. The output end of the motor is connected with a screw rod, and the screw rod is in threaded connection with an inner pipe; the end part of the left side of the outer pipe is in bearing connection with a circular ring, and the circular ring is connected with a cleaning frame; grooves are symmetrically formed in the inner wall of the right side of the outer pipe, and sponge blocks for adsorbing lubricating oil are installed in the grooves. According to the electric supporting rod for the automobile trunk, when the inner pipe stretches out and draws back, the pull rope drives the circular ring to rotate, the circular ring drives the cleaning frame to move synchronously, then the exterior of the inner pipe is cleaned, dust or impurities are prevented from entering the interior of the outer pipe, lubricating treatment is conducted between the inner pipe and the outer pipe, and the service life of the inner pipe is prolonged. Therefore, the resistance during telescopic sliding can be reduced, and the service life of the electric supporting rod is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric support rods, in particular to an electric support rod for a car trunk. Background Art

[0002] The electric support rod of the car trunk is a structure used to support and open the car trunk. The setting of the electric support rod makes it easier for people to open the trunk. The common form of the electric lifting mechanism is a retractable electric support rod;

[0003] The L-shaped electric support rod for the trunk of a car disclosed in publication number CN202220342187.3 is provided with a cleaning assembly. Under the cooperation of the second telescopic rod and the spring, the cleaning member can be in close contact with the push rod. When the push rod is retracted, the cleaning member can brush away the dust and stains on the outer surface of the push rod, thereby playing the role of automatic cleaning, preventing excessive dust and stains on the surface of the push rod from affecting the flexibility of the electric support rod. The entire electric support rod has a simple structure, is easy to operate, and has a long service life.

[0004] However, the above scheme still has the following problems during use: when in use, the cleaning member contacts the surface of the push rod, and the cleaning member is fixed in a fixed state, so that when the support rod is telescopically slid, it encounters greater resistance, and when impurities adhere to the surface, they are not cleaned thoroughly enough by the cleaning member alone and are brought into the interior of the outer tube, and friction is generated between the support rod and the outer tube during telescopic sliding, and lubrication is required for long-term use.

[0005] Therefore, we propose an electric support rod for a car trunk to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide an electric strut for a car trunk, so as to solve the problem that the electric struts for car trunks currently available on the market, when in use, the cleaning part abuts against the surface of the push rod, and the cleaning part is fixed in a state, so that when the strut is telescopically slid, it encounters a large resistance, and when impurities adhere to the surface, they are not cleaned thoroughly enough by only passing through the cleaning part and are brought into the interior of the outer tube, and friction is generated between the strut and the outer tube when telescopically sliding, and lubrication is required for long-term use.

[0007] To achieve the above object, the utility model provides the following technical solution: an electric support rod for a car trunk, comprising an outer tube, wherein the outer tube is hinged to the back body of the car, and the middle part of the outer tube is slidably connected to the inner tube, and the outer end of the inner tube is connected to the car trunk door, and a sealing ring is installed on the inner wall of the left outlet of the outer tube to seal with the inner tube;

[0008] The invention also includes: a wire is installed on the right side of the outer tube, and the wire is connected to the automobile circuit, and the wire is connected to the motor, and the motor is installed in the inner wall of the right side of the outer tube;

[0009] The output end of the motor is connected with a screw rod, and the screw rod is threadedly connected with an inner tube;

[0010] The left end bearing of the outer tube is connected with a ring, and the ring is connected with a cleaning frame, and the cleaning frame is used to clean the outside of the inner tube;

[0011] A groove is symmetrically provided on the right inner wall of the outer tube, and a sponge block for absorbing lubricating oil is installed in the groove. The side of the groove is connected with the conveying channel, and the conveying channel runs through the inner wall of the outer tube.

[0012] Preferably, the interior of the inner tube is configured as a hollow threaded structure, and protrusions are symmetrically fixed to the outside of the inner tube, and the protrusions are connected to the limiting grooves, and the limiting grooves are symmetrically opened on the inner wall of the outer tube. At the same time, the inner tube forms a telescopic sliding structure through the screw, the protrusions and the limiting grooves, so that when the screw is rotated, it will drive the inner tube to move, and the protrusions will slide in the limiting grooves, thereby maintaining the stability of the movement of the inner tube.

[0013] Preferably, a pull rope is fixedly installed on the right end of the inner tube, and the end of the pull rope is connected to the ring, and a torsion spring is installed at the connection between the ring and the outer tube, and the ring forms a reciprocating rotation structure through the pull rope and the torsion spring, so that after the inner tube moves, the pull rope drives the ring to rotate, and the torsion spring is reversed after the ring rotates.

[0014] Preferably, a cleaning rack is sleeved on the left outer side of the ring, and the cleaning rack is set as a semicircular ring structure, and the bristles on the inner wall of the cleaning rack fit the outside of the inner tube, so that the cleaning rack will move synchronously after the ring rotates, and the cleaning rack cleans the outside of the inner tube.

[0015] Preferably, a latch is connected through the middle of the outer side of the cleaning rack, and a first spring is installed between the latch and the cleaning rack, and the end of the latch is plugged into the through hole, and the through holes are symmetrically opened on the upper and lower sides of the ring, so that when the latch is pulled, the first spring will be compressed, the latch will be separated from the through hole, and the cleaning rack can be replaced.

[0016] Preferably, a slider is slidably connected in the groove, and the slider is arranged as a right-angle trapezoidal structure, and the hypotenuse of the slider is arranged opposite to the inner tube, and a second spring is installed between the slider and the groove, so that after the inner tube contacts the slider, the slider will compress the second spring.

[0017] Preferably, the slider is in squeeze contact with the sponge block, and the lubricating oil squeezed out of the sponge block enters the outer tube through the conveying channel, and the lubricating oil lubricates the outer tube and the inner tube, so that after the slider squeezes the sponge block, the lubricating oil is output from the conveying channel, thereby lubricating the inner tube and the outer tube.

[0018] Compared with the prior art, the utility model has the following beneficial effects: when the inner tube is extended and retracted, the pull rope drives the ring to rotate, and the ring drives the cleaning frame to move synchronously, thereby cleaning the outside of the inner tube to prevent dust or impurities from entering the inside of the outer tube, and lubricating the inner tube and the outer tube, thereby reducing the resistance during the extension and sliding, and extending the service life of the electric strut. The specific contents are as follows:

[0019] 1. After the inner tube is extended out of the outer tube, the pull rope will be pulled, and the pull rope will drive the ring to rotate. After the ring rotates, the torsion spring will be reversed. After the ring rotates, it will drive the cleaning frame to rotate synchronously, and the bristles on the cleaning frame will rotate and clean the outside of the inner tube. After the inner tube is retracted into the outer tube, the pull rope is relaxed, the torsion spring will drive the ring to rotate, and the ring will drive the cleaning frame to rotate and clean again, so as to clean the dust or impurities on the outside of the inner tube to prevent them from being brought into the inner part of the outer tube. When the cleaning frame needs to be replaced later, the pin on the cleaning frame is pulled to compress the first spring, thereby separating it from the through hole on the ring, and then replacing the cleaning frame, which is convenient to operate;

[0020] 2. After the inner tube is retracted into the outer tube, the slider on the inner wall of the outer tube will be squeezed, and the slider will be compressed to compress the second spring and retract into the groove, thereby squeezing the sponge block inside the groove. After the sponge block is compressed, the internal lubricating oil will be output through the conveying channel, thereby lubricating the inner tube and the outer tube, thereby reducing the friction during telescopic sliding. The sponge block has adsorption capacity, and excess lubricating oil can be sucked back without causing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the overall front section structure of the utility model;

[0023] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the circular ring and the cleaning rack of the utility model;

[0025] Figure 5 For this utility model Figure 2 Enlarged structural diagram at B in the middle.

[0026] In the figure: 1. outer tube; 2. inner tube; 3. wire; 4. motor; 5. screw; 6. bump; 7. limit groove; 8. sealing ring; 9. pull rope; 10. ring; 11. torsion spring; 12. through hole; 13. cleaning rack; 14. latch; 15. first spring; 16. groove; 17. slider; 18. second spring; 19. sponge block; 20. conveying channel. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-Figure 5 The utility model provides a technical solution: an electric support rod for a car trunk, comprising an outer tube 1, and the outer tube 1 is hinged to the back body of the car, and the middle part of the outer tube 1 is slidably connected with an inner tube 2, and the outer end of the inner tube 2 is connected to the trunk door of the car, and a sealing ring 8 is installed on the inner wall of the left outlet of the outer tube 1 to seal with the inner tube 2, such as Figure 1-Figure 3 As shown, when in use, the outer tube 1 is hinged to the rear of the vehicle body, the outer end of the inner tube 2 is hinged to the trunk door, and a sealing ring 8 is provided at the connection between the inner tube 2 and the outer tube 1 to prevent external water vapor and dust from entering the inner part of the outer tube 1;

[0029] A wire 3 is installed on the right side of the outer tube 1, and the wire 3 is connected to the automobile circuit, and the wire 3 is connected to the motor 4, and the motor 4 is installed in the inner wall of the right side of the outer tube 1, the output end of the motor 4 is connected to the screw 5, and the inner tube 2 is threadedly connected to the screw 5, the interior of the inner tube 2 is set as a hollow threaded structure, and the outer side of the inner tube 2 is symmetrically fixed with a protrusion 6, and the protrusion 6 is connected to the limiting groove 7, and the limiting groove 7 is symmetrically opened on the inner wall of the outer tube 1, and the inner tube 2 forms a telescopic sliding structure through the screw 5, the protrusion 6 and the limiting groove 7, such as Figure 1-Figure 3As shown, the wire 3 is connected to the circuit of the vehicle body, and the wire 3 is connected to the motor 4. The opening and closing of the motor 4 is controlled by the circuit. After the motor 4 is started, it will drive the screw 5 to rotate. After the screw 5 rotates, it will drive the threaded inner tube 2 to extend out of the outer tube 1. When the inner tube 2 moves, the protrusion 6 will move synchronously in the limit groove 7, thereby maintaining the stability of the telescopic sliding of the inner tube 2. After the inner tube 2 is extended, the trunk door automatically opens, and after the inner tube 2 is retracted, the trunk door automatically closes, eliminating the laborious operation of manual opening and closing.

[0030] The left end bearing of the outer tube 1 is connected with a ring 10, and a cleaning frame 13 is connected to the ring 10, and the cleaning frame 13 is used to clean the outside of the inner tube 2. A pull rope 9 is fixedly installed on the right end of the inner tube 2, and the end of the pull rope 9 is connected to the ring 10, and a torsion spring 11 is installed at the connection between the ring 10 and the outer tube 1, and the ring 10 forms a reciprocating rotation structure through the pull rope 9 and the torsion spring 11. The left outer side of the ring 10 is sleeved with a cleaning frame 13, and the cleaning frame 13 is set to a semicircular ring structure, and the bristles on the inner wall of the cleaning frame 13 fit the outside of the inner tube 2. A latch 14 is connected through the middle of the outer side of the cleaning frame 13, and a first spring 15 is installed between the latch 14 and the cleaning frame 13, and the end of the latch 14 is plugged into the through hole 12, and the through hole 12 is symmetrically opened on the upper and lower sides of the ring 10, such as Figure 1-Figure 4 As shown, after the inner tube 2 moves, the pull rope 9 will be pulled, and the pull rope 9 will drive the ring 10 to rotate. After the ring 10 rotates, the torsion spring 11 will be reversed, and the circular plate 10 will drive the cleaning frame 13 to rotate synchronously. After the cleaning frame 13 rotates, the outside of the inner tube 2 is cleaned to prevent dust or impurities from adhering to and being brought into the inside of the outer tube 1. When the inner tube 2 is retracted into the inner tube 1 at a later stage, the pull rope 9 is relaxed, and the torsion spring 11 will drive the ring 10 to rotate, thereby driving the cleaning frame 13 to rotate again, so as to clean the inner tube 2. When the cleaning frame 13 needs to be replaced, the latch 14 on the outside of the cleaning frame 13 is pulled to compress the first spring 15, thereby separating it from the through hole 12 on the ring 10, and then the cleaning frame 13 can be replaced for subsequent use.

[0031] A groove 16 is symmetrically provided on the right inner wall of the outer tube 1, and a sponge block 19 for absorbing lubricating oil is installed in the groove 16, and the side of the groove 16 is connected to the delivery channel 20, and the delivery channel 20 is set through the inner wall of the outer tube 1, and a slider 17 is fitted and slidably connected in the groove 16, and the slider 17 is set as a right-angle trapezoidal structure, and the hypotenuse of the slider 17 is arranged opposite to the inner tube 2, and a second spring 18 is installed between the slider 17 and the groove 16, the slider 17 is in compression contact with the sponge block 19, and the lubricating oil squeezed out of the sponge block 19 enters the inner part of the outer tube 1 through the delivery channel 20, and the lubricating oil lubricates the outer tube 1 and the inner tube 2, such as Figure 2 and Figure 5 As shown, after the inner tube 2 is retracted into the outer tube 1, the slider 17 will be squeezed. After the slider 17 is pressed, it will compress the second spring 18 and retract into the groove 16, so that the slider 17 squeezes the sponge block 19. The lubricating oil in the sponge block 19 will enter between the outer tube 1 and the inner tube 2 through the conveying channel 20, and then lubricate the inner tube 2 and the outer tube 1, thereby reducing friction loss and extending the service life of the electric strut. In addition, the sponge block 19 has adsorption capacity, and excess lubricating oil can be sucked back without causing waste, which is convenient for lubrication next time.

[0032] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric support rod for a car trunk, comprising an outer tube (1), wherein the outer tube (1) is hinged to the rear body of the car, and the middle part of the outer tube (1) is slidably connected to an inner tube (2), and the outer end of the inner tube (2) is connected to the trunk door of the car, and a sealing ring (8) is installed on the inner wall of the left outlet of the outer tube (1) to seal with the inner tube (2); Features: Also includes: A wire (3) is installed on the right side of the outer tube (1), and the wire (3) is connected to the automobile circuit, and the wire (3) is connected to the motor (4), and the motor (4) is installed in the right side inner wall of the outer tube (1); The output end of the motor (4) is connected to a screw rod (5), and the screw rod (5) is threadedly connected to an inner tube (2); The left end bearing of the outer tube (1) is connected to a ring (10), and the ring (10) is connected to a cleaning frame (13), and the cleaning frame (13) is used to clean the outside of the inner tube (2); A groove (16) is symmetrically provided on the right inner wall of the outer tube (1), and a sponge block (19) for absorbing lubricating oil is installed in the groove (16). The side of the groove (16) is connected to a conveying channel (20), and the conveying channel (20) is arranged through the inner wall of the outer tube (1).

2. The electric support rod for a car trunk according to claim 1, characterized in that: The interior of the inner tube (2) is arranged as a hollow threaded structure, and a protrusion (6) is symmetrically fixed on the exterior of the inner tube (2), and the protrusion (6) is connected to a limiting groove (7), and the limiting groove (7) is symmetrically arranged on the inner wall of the outer tube (1), and the inner tube (2) forms a telescopic sliding structure through the screw rod (5), the protrusion (6) and the limiting groove (7).

3. The electric support rod for a car trunk according to claim 1, characterized in that: A drawstring (9) is fixedly installed at the right end of the inner tube (2), and the end of the drawstring (9) is connected to a circular ring (10). A torsion spring (11) is installed at the connection between the circular ring (10) and the outer tube (1), and the circular ring (10) forms a reciprocating rotating structure through the drawstring (9) and the torsion spring (11).

4. The electric support rod for a car trunk according to claim 1, characterized in that: A cleaning frame (13) is sleeved on the left side of the circular ring (10), and the cleaning frame (13) is arranged in a semicircular ring structure, and the bristles on the inner wall of the cleaning frame (13) fit the outer side of the inner tube (2).

5. The electric support rod for a car trunk according to claim 1, characterized in that: A latch (14) is connected through the middle of the outer side of the cleaning frame (13), and a first spring (15) is installed between the latch (14) and the cleaning frame (13). The end of the latch (14) is plugged into the through hole (12), and the through hole (12) is symmetrically opened on the upper and lower sides of the ring (10).

6. The electric support rod for a car trunk according to claim 1, characterized in that: A slider (17) is slidably connected in the groove (16), and the slider (17) is arranged in a right-angle trapezoidal structure, and the hypotenuse of the slider (17) is arranged opposite to the inner tube (2), and a second spring (18) is installed between the slider (17) and the groove (16).

7. The electric support rod for a car trunk according to claim 6, characterized in that: The slider (17) is in compression contact with the sponge block (19), and the lubricating oil squeezed out of the sponge block (19) enters the interior of the outer tube (1) through the delivery channel (20), and the lubricating oil lubricates the space between the outer tube (1) and the inner tube (2).

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