Oil injection device for connecting rod spherical hinge seat of windscreen wiper

Abstract

An oil injection device for a connecting rod spherical hinge seat of a windscreen wiper comprises a supporting table, a guide pipe, a scraping plate and a positioning plate. The supporting table is used for supporting ends of the connecting rods; the guide pipe is vertically arranged above the supporting table, the guide pipe is movably arranged in the direction perpendicular to the supporting table, the guide pipe is rotationally arranged around the axis, and the upper end of the guide pipe is used for being communicated with the conveying pipe; the scraping plate is connected to the lower end of the guide pipe, a counter bore communicated with the guide pipe is formed in the scraping plate, the outer wall of one side of the scraping plate is of a spherical surface structure, and an oil hole communicated with the counter bore is formed in the spherical surface of the scraping plate; the lower end of the positioning plate is of a conical structure, the guide pipe is coaxially sleeved with the positioning plate, a pressure spring is arranged on the outer wall of the guide pipe and corresponds to the upper portion of the positioning plate, and when the pressure spring is in a natural state, the positioning plate is pressed on the top face of the scraper. According to the scheme, the inner wall of the spherical hinge seat can be evenly coated with lubricating grease in a scraping mode while oil injection is conducted, the oil injection efficiency can be effectively improved, and waste is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of glue spraying devices, in particular to an oiling device for a wiper connecting rod ball hinge seat. Background Art

[0002] The connecting rod end of the wiper is usually connected to the cam and the parallel four-bar mechanism by a ball joint structure. The ball joint structure includes a ball joint seat with a spherical hole and a ball head installed in the spherical hole. Before installing the ball head, it is necessary to add lubricating grease to the inside of the ball joint seat. Most of this grease is in paste form. At present, workers mainly use glue guns to add oil to the inside of the ball joint seat. First, this method does not control the amount of oil constantly; second, the lubricating grease added in this way can only accumulate in a local position on the inner wall of the ball joint seat, and it is impossible to form an oil film of uniform thickness on the inner wall of the ball joint seat before installing the ball head. After the ball head is installed, the auxiliary ball head needs to be swung and rotated in all directions to squeeze the grease onto the inner wall of the ball joint seat, and the process of swinging the ball head needs to be added; and in the process of swinging or rotating the ball head, it is easy to squeeze the grease out of the spherical hole at the beginning, resulting in too little remaining grease in the ball joint seat, affecting the lubrication effect during the use of the wiper. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the utility model provides a wiper connecting rod ball joint seat oiling device, which can evenly apply lubricating grease to the inner wall of the ball joint seat during oiling, thereby effectively improving the oiling efficiency and avoiding waste.

[0004] In order to achieve the purpose of this utility model, the following scheme is proposed:

[0005] A wiper connecting rod ball joint seat oiling device comprises a support platform, a guide tube, a scraper and a positioning plate.

[0006] The support platform is used to support the end of the connecting rod;

[0007] The conduit is vertically arranged above the support platform, the conduit is movable in a direction perpendicular to the support platform, and the conduit is rotatably arranged around an axis, and the upper end of the conduit is used to connect with the delivery pipe;

[0008] The scraper is connected to the lower end of the conduit, a countersunk hole connected to the conduit is provided inside the scraper, an outer wall of one side of the scraper is a spherical structure, and the center of the spherical structure is located on the extended line of the axis of the conduit, the distance between the other side of the scraper and the far end of the spherical structure is smaller than the inner diameter of the mounting hole of the ball joint seat, and an oil hole connected to the countersunk hole is provided on the spherical surface of the scraper; when the scraper is located inside the ball joint seat, and the conduit is coaxial with the spherical hole inside the hinge seat, there is a predetermined interval between the spherical structure of the scraper and the spherical hole wall of the ball joint seat;

[0009] The lower end of the positioning plate is a conical structure. The positioning plate is coaxially sleeved on the conduit, and a pressure spring is provided on the outer wall of the conduit corresponding to the upper side of the positioning plate. When the pressure spring is in a natural state, the positioning plate is pressed against the top surface of the scraper.

[0010] The beneficial effect of the utility model is that the lubricating grease is evenly applied to the inner wall of the ball joint seat during oiling, which not only can accurately control the amount of oil and reduce waste, but also allows a uniform oil film to be formed between the ball head and the spherical hole of the ball joint seat from the beginning. While improving the lubrication effect, it also reduces the auxiliary work of swinging the ball head, thereby improving the assembly efficiency of the ball head. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0012] Figure 1 Shown is a schematic diagram of the overall structure of the present application.

[0013] Figure 2 A cross-sectional view of the present application is shown when the scraper is inserted into the mounting hole of the ball joint seat.

[0014] Figure 3 A cross-sectional view of the present application is shown during oil filling.

[0015] Markings in the figure: support platform -1, pillar -11, cantilever -12, guide rod -13, guide tube -2, conveying pipe -21, pressure spring -22, scraper -3, countersunk hole -31, oil hole -32, positioning plate -4, lifting plate -5, telescopic device -6, driving motor -7. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings, but the embodiments described in the utility model are only part of the embodiments of the utility model, rather than all the embodiments.

[0017] like Figures 1 to 3 As shown, a wiper connecting rod ball joint seat oiling device includes: a support platform 1, a guide tube 2, a scraper 3 and a positioning plate 4.

[0018] The support platform 1 is used to support the end of the connecting rod.

[0019] The conduit 2 is vertically arranged above the support platform 1 , and the conduit 2 is movable in a direction perpendicular to the support platform 1 , and the conduit 2 is rotatably arranged around an axis, and the upper end of the conduit 2 is used to connect to a delivery pipe 21 for delivering lubricating grease into the conduit 2 .

[0020] The scraper 3 is connected to the lower end of the conduit 2, and a countersunk hole 31 connected to the conduit 2 is provided inside the scraper 3. The outer wall of one side of the scraper 3 is a spherical structure, and the center of the spherical structure is located on the extension line of the axis of the conduit 2. The distance between the other side of the scraper 3 and the far end of the spherical structure is smaller than the inner diameter of the mounting hole of the ball joint seat. The mounting hole of the ball joint seat is the inner diameter of the opening of the spherical hole. The far end of the spherical structure refers to the part on the spherical surface with the largest distance from the axis of the countersunk hole 31, so as to facilitate the insertion of the scraper 3 into the spherical hole of the ball joint seat. An oil hole 32 connected to the countersunk hole 31 is provided on the spherical surface of the scraper 3; when the scraper 3 is located inside the ball joint seat and the conduit 2 is coaxial with the spherical hole inside the hinge seat, there is a predetermined interval between the spherical structure of the scraper 3 and the spherical hole wall of the ball joint seat, and the size of the predetermined interval is the thickness of the lubricating oil film finally formed.

[0021] The lower end of the positioning plate 4 is a conical structure. The positioning plate 4 is coaxially sleeved on the conduit 2, and a pressure spring 22 is provided above the outer wall of the conduit 2 corresponding to the positioning plate 4. When the pressure spring 22 is in a natural state, the positioning plate 4 is pressed against the top surface of the scraper 3.

[0022] like Figure 2 , Figure 3 As shown, when in use, place the end of the connecting rod on the support platform 1, so that the opening of the ball joint seat faces upward, and its opening is set below the scraper 3; move the catheter 2 downward, and insert the scraper 3 into the mounting hole of the ball joint seat. After the scraper 3 is inserted, the conical surface at the lower end of the positioning plate 4 will contact the edge of the mounting hole of the ball joint seat, and the pressure spring 22 will be compressed. Guided by the conical surface at the lower end of the positioning plate 4, the connecting rod will be pushed to generate thrust, so that the mounting hole of the ball joint seat is coaxial with the catheter 2, and then the spherical surface of the scraper 3 and the center of the spherical hole in the ball joint seat are both on the extension line of the axis of the catheter 2; continue to move the catheter 2 downward by a predetermined distance, so that the center of the spherical surface of the scraper 3 coincides with the center of the spherical hole, and finally the distance between the spherical surface of the scraper 3 and the inner wall of the spherical hole of the ball joint seat can be made the same. During this process, the pressure spring 22 will continue to be compressed. So that the positioning plate 4 fixes the connecting rod on the support platform 1, keeps the connecting rod and the axis of the conduit 2 relatively fixed, and prevents the connecting rod from moving; rotate the conduit 2 and add lubricating grease to the inside of the conduit 2 through the delivery pipe 21, and the lubricating grease will enter between the spherical surface of the scraper 3 and the inner wall of the spherical hole of the ball joint seat through the oil hole 32. The scraper 3 is driven to rotate together by the conduit 2, so that the lubricating grease can be evenly applied to the inner wall of the spherical hole of the ball joint seat; after the oil filling is completed, move the conduit 2 upward and pull the scraper 3 out of the ball joint seat. This scheme evenly applies the lubricating grease to the inner wall of the ball joint seat while filling the oil, which can not only accurately control the amount of oil and reduce waste, but also form a uniform oil film between the ball head and the spherical hole of the ball joint seat from the beginning. While improving the lubrication effect, it also reduces the auxiliary work of swinging the ball head, which can improve the assembly efficiency of the ball head.

[0023] Preferably, Figure 2 As shown, the inner diameter of the counterbore 31 is larger than the inner diameter of the conduit 2, so that the counterbore 31 forms a chamber with sufficient volume. The lubricating grease needs to pass through the chamber before entering the oil hole 32. In this way, the pot cover chamber can be used to stabilize the lubricating grease, and the pressure of the lubricating grease output from each oil hole can be more balanced, and the output volume tends to be consistent.

[0024] Preferably, Figures 1 to 3 As shown, a pillar 11 is provided on the top surface of the support platform 1, and a cantilever 12 parallel to the support platform 1 is provided on the top of the pillar 11. The conduit 2 vertically passes through the cantilever 12, and the upper end of the conduit 2 is vertically and rotatably penetrated through a lifting plate 5, which is located above the cantilever 12. A telescopic device 6 is provided on one side of the cantilever 12, which is used to drive the lifting plate 5 to move in a direction perpendicular to the support platform 1. A driving motor 7 is provided on the top of the lifting plate 5, and a driving gear is coaxially provided on its main shaft. A driven gear meshing with the driving gear is provided on the outer sleeve of the upper end of the conduit 2, and the rotation of the conduit 2 can be controlled by the driving motor 7, so as to achieve the purpose of automatically pressing the connecting rod and automatically scraping the oil.

[0025] Preferably, Figure 1 As shown, two guide rods 13 are provided on the top of the cantilever 12 , and the guide rods 13 vertically pass through the lifting plate 5 to improve the stability of the lifting plate 5 when it moves.

[0026] Preferably, a plurality of oil holes 32 are evenly distributed along the spherical surface of the scraper 3 to improve the oil injection efficiency and balance.

[0027] The above is only a preferred embodiment of the utility model, and does not mean that it is the only one or limit the utility model. Those skilled in the art should understand that various changes or equivalent replacements made to the utility model without departing from the scope of the utility model are within the scope of protection of the utility model.

Claims

1. A wiper connecting rod ball joint seat oiling device, characterized in that: include: A support platform (1) for supporting the end of the connecting rod; The conduit (2) is vertically arranged above the support platform (1), the conduit (2) is movable in a direction perpendicular to the support platform (1), and the conduit (2) is rotatably arranged around an axis, and the upper end of the conduit (2) is used to connect to the conveying pipe (21); A scraper (3) is connected to the lower end of the conduit (2), a countersunk hole (31) communicating with the conduit (2) is provided inside the scraper (3), an outer wall on one side of the scraper (3) is a spherical structure, and the center of the spherical structure is located on the extension line of the axis of the conduit (2), the distance between the other side of the scraper (3) and the far end of the spherical structure is smaller than the inner diameter of the mounting hole of the ball joint seat, and an oil hole (32) communicating with the countersunk hole (31) is provided on the spherical surface of the scraper (3); when the scraper (3) is located inside the ball joint seat, and the conduit (2) is coaxial with the spherical hole inside the hinge seat, a predetermined interval exists between the spherical structure of the scraper (3) and the spherical hole wall of the ball joint seat; The positioning plate (4) has a conical structure at its lower end. The positioning plate (4) is coaxially sleeved on the conduit (2), and a pressure spring (22) is provided on the outer wall of the conduit (2) corresponding to the upper side of the positioning plate (4). When the pressure spring (22) is in a natural state, the positioning plate (4) is pressed against the top surface of the scraper (3).

2. The wiper connecting rod ball joint oil filling device according to claim 1, characterized in that: The inner diameter of the counterbore (31) is greater than the inner diameter of the conduit (2).

3. The wiper connecting rod ball joint oil filling device according to claim 1, characterized in that: A support column (11) is provided on the top surface of the support platform (1), a cantilever (12) parallel to the support platform (1) is provided on the top of the support column (11), a conduit (2) vertically passes through the cantilever (12), the upper end of the conduit (2) is vertically and rotatably penetrated through a lifting plate (5), the lifting plate (5) is located above the cantilever (12), a telescopic device (6) is provided on one side of the cantilever (12), and is used to drive the lifting plate (5) to move in a direction perpendicular to the support platform (1), a driving motor (7) is provided on the top of the lifting plate (5), a driving gear is coaxially provided on the main shaft thereof, and a driven gear meshing with the driving gear is sleeved on the outer side of the upper end of the conduit (2).

4. The wiper connecting rod ball joint oil filling device according to claim 3, characterized in that: Two guide rods (13) are provided at the top of the cantilever (12), and the guide rods (13) both vertically pass through the lifting plate (5).

5. The wiper connecting rod ball joint oil filling device according to claim 1, characterized in that: A plurality of oil holes (32) are evenly distributed along the spherical surface of the scraper (3).

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