Portable quick-release connecting rod mechanism

Abstract

The invention discloses a portable quick-release connecting rod mechanism which comprises a fixing seat and further comprises a gear set, a connecting rod and a motor, an annular groove used for installing a plunger pump is formed in the bottom of the fixing seat, a shaft sleeve is installed in the middle of the interior of the fixing seat in the horizontal direction, and the gear set comprises a gear shaft, a large bearing, a gear and a balancing weight. The end of the fixing base is connected with a motor, a bearing is installed in the fixing base, a gear is installed on the periphery of a gear shaft, and a balancing weight is connected to one side of the surface of the gear in an inserted mode, so that compared with a traditional metal material, the overall weight of the spraying machine gearbox can be effectively reduced, and carrying and moving are convenient; meanwhile, the connecting rod hanging lug is arranged at the connecting position of the connecting rod and the plunger rod, the plunger rod can be rapidly disassembled by pushing the plunger rod into the connecting rod hanging lug from the side edge, the structure capable of rapidly replacing the plunger pump is adopted, the maintenance time is saved, and unnecessary time loss caused by complex and tedious disassembly is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of airless spraying machines, and in particular to a lightweight quick-release connecting rod mechanism. Background Art

[0002] An airless sprayer is a type of spraying equipment that uses a plunger pump to pressurize the paint and delivers it to the spray gun through a high-pressure hose, and finally releases the pressure through a nozzle to form an atomized paint. It does not require compressed air to atomize the paint, hence the name airless spray. With the continuous improvement of airless spraying technology, the airless spraying market has been further subdivided into different types. The market for small airless sprayers is often huge, and the emergence of various DIY sprays has once again increased the demand for small airless sprayers.

[0003] The existing small airless sprayers have the following disadvantages when in use: the traditional small airless sprayers are relatively heavy, and the disassembly steps of the plunger pump are relatively cumbersome. In addition to the machine base, the heaviest part is the multi-stage transmission gear set inside the gearbox. These two shortcomings have caused certain troubles to the users of the machine. For this reason, we propose a lightweight quick-release connecting rod mechanism. Summary of the invention

[0004] The main purpose of the present invention is to provide a lightweight quick-release connecting rod mechanism, which can effectively reduce the weight of the equipment and realize the quick installation and removal of the plunger rod by adopting a connecting rod made of non-metallic material in combination with a connecting rod connecting rod ear structure, and can effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A lightweight quick-release connecting rod mechanism includes a fixed seat, a gear set, a connecting rod and a motor. The bottom of the fixed seat is provided with an annular groove for installing a plunger pump, and a shaft sleeve is installed in the horizontal direction in the middle position inside the fixed seat. The gear set includes a gear shaft, a large bearing, a gear and a counterweight. The end of the fixed seat is connected to the motor, and a bearing is installed inside the fixed seat. A gear is installed on the outer periphery of the gear shaft and a counterweight is inserted on one side of the gear surface. A large bearing is installed on the outer periphery of the gear shaft at one side of the gear. A connecting rod inner groove is provided inside the connecting rod, and a connecting rod hanging ear connected to the plunger rod is provided in the middle position of the bottom of the connecting rod, and connecting rod guide rails are opened in the vertical direction on both sides of the connecting rod surface.

[0007] Furthermore, both sides of the top of the fixing seat are integrally formed with hanging ears; the hanging ear structure and the threaded holes opened inside are used to connect with the external rack assembly.

[0008] Furthermore, the fixing seat mounting end is detachably connected with a fixing cover, and bolts and fixing cover locating pins are detachably connected between the fixing cover and the fixing seat; the fixing cover serves as an end sealing function, and the fixing cover is tightly fixed in position by the bolts and the fixing cover locating pins when being installed.

[0009] Furthermore, a spring washer is sleeved at the connection between the outer periphery of the bolt and the fixing cover; the spring washer structure plays a role of connection and sealing at the connection.

[0010] Furthermore, a bearing fixing pin is inserted between the bearing and the fixing seat, and a bearing washer is sleeved on the outer periphery of the bearing fixing pin; the bearing washer structure can improve the sealing of the connection after the bearing fixing pin is installed in place.

[0011] Furthermore, the connecting rod is made of plastic; the connecting rod structure made of plastic can effectively reduce the overall weight of the sprayer equipment.

[0012] Furthermore, the ends of the bearings are clamped with press sleeves, the sleeves are connected to the gear shaft and a gear shaft washer is sleeved on the outer periphery of the gear shaft; the bearing position is positioned by the cooperation of the press sleeve and the bearing fixing pin, and the gear shaft washer plays a connecting and sealing role.

[0013] Furthermore, the large bearing is installed inside the inner groove of the connecting rod, and the connecting rod is connected to the bearing through a connecting rod guide; the inner groove of the connecting rod is used to install the large bearing and limit it, and the connecting rod guide plays a connecting role between the connecting rod and the bearing.

[0014] Compared with the prior art, the present invention has the following beneficial effects: ear structures are provided on both sides of the top of the fixing seat, which are connected to different frames through the threaded hole structure inside the ear to fix the entire mechanism; the fixing seat is connected to the motor through the end connecting assembly and the motor output shaft passes through the fixing seat to provide power for the equipment; the gear shaft is pressed into the center hole inside the gear by a hydraulic assembly, and then the counterweight block is installed on the surface of the gear, and the large bearing is pressed into the gear shaft so that it fits with the end face of the gear to complete the assembly of the gear set; a through hole is provided at the center of the front end of the fixing seat, and the shaft sleeve is pressed into it through the hydraulic assembly, and then the side of the gear set counterweight block is inserted toward the shaft sleeve; the bearing fixing pin is installed in the blind hole at the end of the fixing seat, the bearing fixing pin is first inserted into the blind hole, and then the bearing washer is inserted into the bearing fixing pin to make it match with the end face of the bearing fixing pin, and the bearing is inserted into the bearing fixing pin until it fits with the bearing washer The end faces of the ring are fitted, and then the notch of the connecting rod ear faces outward and is tilted at an angle of 30 degrees so that the connecting rod guide rail clamps the bearing, and then the inner groove of the connecting rod is inserted into the large bearing, the bearing is inserted into the bearing fixing pin to clamp the connecting rod guide rail, and the sleeve is pressed into the internal through hole of the fixing cover, and the two through holes of the fixing cover are aligned with the fixing cover locating pin. Insert it until the end face of the fixing cover and the four end faces of the climbing boss of the fixing seat fit together, put the spring washer into the bolt and screw the bolt into the screw hole inside the climbing boss to complete the overall assembly. The sleeve is used to fix the gear set to ensure that the gear set will not fall out as the direction of the connecting rod changes. When the motor is running, the gear set is driven to rotate through the output shaft, and the large bearing drives the connecting rod up and down. The friction between the bearing and the connecting rod guide rail also ensures that the connecting rod will not fall out whether it is placed horizontally or vertically. The plunger cylinder connecting the plunger pump is clamped into the connecting rod ear and the annular groove, and the plunger pump can be driven to complete the paint spraying process. Compared with traditional metal materials, the connecting rod structure made of plastic material can effectively reduce the overall weight of the sprayer gearbox and is convenient to carry and move. At the same time, a connecting rod hanging ear is provided at the place where the connecting rod is connected to the plunger rod. The plunger rod can be quickly disassembled by pushing the plunger rod into the connecting rod hanging ear from the side. The structure that can quickly replace the plunger pump is adopted, which saves maintenance time and reduces unnecessary time loss caused by complicated and tedious disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a schematic diagram of the overall structure of a lightweight quick-release connecting rod mechanism.

[0016] Figure 2 The present invention is a schematic diagram of the internal structure of a lightweight quick-release connecting rod mechanism.

[0017] Figure 3 A lightweight quick-release connecting rod mechanism of the present invention Figure 1 Schematic diagram of the AA cross-sectional structure.

[0018] Figure 4 A lightweight quick-release connecting rod mechanism of the present invention Figure 1Schematic diagram of the BB cross-section structure.

[0019] Figure 5 The present invention is a schematic diagram of a gear set structure of a lightweight quick-release connecting rod mechanism.

[0020] Figure 6 The present invention is a schematic diagram of a connecting rod structure of a lightweight quick-release connecting rod mechanism.

[0021] In the figure: 1. fixing seat; 101. hanging ear; 102. annular groove; 2. fixing cover; 3. bolt; 4. spring washer; 5. motor; 6. fixing cover locating pin; 7. pressing sleeve; 8. bearing; 9. bearing fixing pin; 10. bearing washer; 11. connecting rod; 1101. connecting rod inner groove; 1102. connecting rod hanging ear; 1103. connecting rod guide rail; 12. bushing; 13. gear set; 1301. gear shaft; 1302. gear shaft washer; 1303. large bearing; 1304. gear; 1305. counterweight. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] like Figure 1-6 As shown, a lightweight quick-release connecting rod mechanism includes a fixing seat 1, a gear set 13, a connecting rod 11 and a motor 5. The bottom of the fixing seat 1 is provided with an annular groove 102 for installing a plunger pump. A shaft sleeve 12 is installed horizontally in the middle position of the fixing seat 1. The gear set 13 includes a gear shaft 1301, a large bearing 1303, a gear 1304 and a counterweight 1305. The end of the fixing seat 1 is connected to the motor 5. The fixing seat 1 is provided with a shaft Bearing 8, a gear 1304 is installed on the outer periphery of the gear shaft 1301 and a counterweight block 1305 is inserted on one side of the surface of the gear 1304, a large bearing 1303 is installed on the outer periphery of the gear shaft 1301 at one side of the gear 1304, a connecting rod inner groove 1101 is opened inside the connecting rod 11, a connecting rod ear 1102 connected to the plunger rod is set at the middle position of the bottom of the connecting rod 11, and connecting rod guide rails 1103 are opened on both sides of the surface of the connecting rod 11 in the vertical direction.

[0024] Wherein, both sides of the top of the fixing base 1 are integrally formed with hanging ears 101; the hanging ears 101 structure and the threaded holes opened inside are used to connect with the external rack components.

[0025] Among them, the mounting end of the fixing seat 1 is detachably connected with a fixing cover 2, and a bolt 3 and a fixing cover locating pin 6 are detachably connected between the fixing cover 2 and the fixing seat 1; a spring washer 4 is sleeved at the connection between the outer periphery of the bolt 3 and the fixing cover 2, a bearing fixing pin 9 is inserted between the bearing 8 and the fixing seat 1, and a bearing washer 10 is sleeved at the outer periphery of the bearing fixing pin 9; the fixing cover 2 plays a role of end sealing, and the fixing cover 2 is tightly fixed in place by the bolt 3 and the fixing cover locating pin 6 when installed. The spring washer 4 structure plays a role of connection and sealing at the connection, and the bearing washer 10 structure can improve the sealing of the connection after the bearing fixing pin 9 is installed in place.

[0026] The connecting rod 11 is made of plastic. The connecting rod 11 structure made of plastic can effectively reduce the overall weight of the sprayer equipment.

[0027] Among them, the ends of the bearings 8 are clamped with press sleeves 7, the sleeves 12 are connected to the gear shaft 1301 and the outer periphery of the gear shaft 1301 is sleeved with a gear shaft gasket 1302, the large bearing 1303 is installed inside the connecting rod inner groove 1101, and the connecting rod 11 is connected to the bearing 8 through the connecting rod guide 1103; the position of the bearing 8 is positioned by the cooperation of the press sleeve 7 and the bearing fixing pin 9, the gear shaft gasket 1302 plays a connecting and sealing role, the connecting rod inner groove 1101 is used to install the large bearing 1303 and limit it, and the connecting rod guide 1103 plays a connecting role between the connecting rod 11 and the bearing 8.

[0028] It should be noted that the present invention is a lightweight quick-release connecting rod mechanism. When a fixing base 1 is provided, a hanging ear 101 structure is provided on both sides of the top of the fixing base 1. The hanging ear 101 is connected to different racks through the threaded hole structure inside the hanging ear 101 to fix the entire mechanism. The fixing base 1 is connected to the motor 5 through the end connection component, and the output shaft of the motor 5 passes through the fixing base 1 to provide power for the equipment. The gear shaft 1301 is pressed into the center hole inside the gear 1304 by a hydraulic component, and then the counterweight block 1305 is installed on the surface of the gear 1304. The bearing 1303 is pressed into the gear shaft 1301 to make it fit with the end face of the gear 1304 to complete the assembly of the gear set 13. A through hole is provided in the center of the front end of the fixed seat 1 to press the sleeve 12 into it through the hydraulic assembly, and then the gear set 13 is installed with the counterweight block 1305 on one side toward the sleeve 12. The blind hole at the end of the fixed seat 1 is used to install the bearing fixing pin 9. First, insert the bearing fixing pin 9 into the blind hole, and then insert the bearing washer 10 into the bearing fixing pin 9 to make it fit with the end face of the bearing fixing pin 9. Insert the bearing 8 into the bearing fixing pin 9 until it is aligned with the bearing. The end faces of the washers 10 are fitted, and then the notch of the connecting rod hanging ear 1102 faces outwards, tilted at an angle of 30 degrees so that the connecting rod guide rail 1103 clamps the bearing 8, and then the connecting rod inner groove 1101 is inserted into the large bearing 1303, the bearing 8 is inserted into the bearing fixing pin 9 to clamp the connecting rod guide rail 1103, and the sleeve 12 is pressed into the internal through hole of the fixing cover 2, and the two through holes of the fixing cover 2 are aligned with the fixing cover locating pin 6 and inserted until the end face of the fixing cover 2 is fitted with the end faces of the four ascending bosses of the fixing seat 1, and the spring washer 4 is inserted into the bolt 3 and the bolt 3 is tightened to the inside of the ascending boss The whole assembly is completed in the screw hole. The shaft sleeve 12 is used to fix the gear set 13 to ensure that the gear set 13 will not fall out when the direction of the connecting rod 11 is changed. When the motor 5 is running, the output shaft drives the gear set 13 to rotate. The large bearing 1303 drives the connecting rod 11 to move up and down. The friction between the bearing 8 and the connecting rod guide rail 1103 also ensures that the connecting rod 11 will not fall out whether it is placed horizontally or vertically. The plunger cylinder is connected to the plunger pump and is inserted into the connecting rod hanging ear 1102 and the annular groove 102. The plunger pump can be driven to complete the spraying process of the paint. Compared with the traditional metal material, the connecting rod 11 structure made of plastic material can effectively reduce the overall weight of the sprayer gearbox, which is convenient to carry and move. At the same time, the connecting rod 11 is provided with a connecting rod hanging ear 1102 at the place where the connecting rod is connected to the plunger rod. The plunger rod can be quickly disassembled by pushing the plunger rod into the connecting rod hanging ear 1102 from the side. The structure that can quickly replace the plunger pump saves maintenance time and reduces unnecessary time loss caused by complex and cumbersome disassembly.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A lightweight quick-release connecting rod mechanism, comprising a fixing seat (1), characterized in that: The invention also comprises a gear set (13), a connecting rod (11) and a motor (5); an annular groove (102) for mounting a plunger pump is provided at the bottom of the fixing seat (1); a shaft sleeve (12) is horizontally mounted in the middle of the fixing seat (1); the gear set (13) comprises a gear shaft (1301), a large bearing (1303), a gear (1304) and a counterweight (1305); an end of the fixing seat (1) is connected to the motor (5); a bearing (8) is mounted inside the fixing seat (1); the gear shaft A gear (1304) is installed on the periphery of (1301) and a counterweight (1305) is inserted on one side of the surface of the gear (1304); a large bearing (1303) is installed on the periphery of the gear shaft (1301) at one side of the gear (1304); a connecting rod inner groove (1101) is provided inside the connecting rod (11); a connecting rod ear (1102) connected to the plunger rod is provided at the middle position of the bottom of the connecting rod (11); and connecting rod guide rails (1103) are provided on both sides of the surface of the connecting rod (11) in the vertical direction.

2. A lightweight quick-release connecting rod mechanism according to claim 1, characterized in that: Both sides of the top of the fixing seat (1) are integrally formed with hanging ears (101).

3. A lightweight quick-release connecting rod mechanism according to claim 1, characterized in that: The mounting end of the fixing seat (1) is detachably connected to a fixing cover (2), and a bolt (3) and a fixing cover positioning pin (6) are detachably connected between the fixing cover (2) and the fixing seat (1).

4. A lightweight quick-release connecting rod mechanism according to claim 3, characterized in that: A spring washer (4) is sleeved at the connection between the outer periphery of the bolt (3) and the fixing cover (2).

5. The lightweight quick-release connecting rod mechanism according to claim 1, characterized in that: A bearing fixing pin (9) is inserted between the bearing (8) and the fixing seat (1), and a bearing washer (10) is sleeved on the outer circumference of the bearing fixing pin (9).

6. A lightweight quick-release connecting rod mechanism according to claim 1, characterized in that: The connecting rod (11) is made of plastic.

7. A lightweight quick-release connecting rod mechanism according to claim 1, characterized in that: The ends of the bearings (8) are clamped with press sleeves (7), the shaft sleeves (12) are connected to the gear shaft (1301), and the outer circumference of the gear shaft (1301) is sleeved with a gear shaft washer (1302).

8. The lightweight quick-release connecting rod mechanism according to claim 1, characterized in that: The large bearing (1303) is installed inside the connecting rod inner groove (1101), and the connecting rod (11) is connected to the bearing (8) through the connecting rod guide rail (1103).

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