Disassembling and assembling tool for fan assembly of parking heater

Abstract

A dismounting tool for a parking heater fan assembly comprises a fastening hoop, a pushing sleeve, a supporting ring and a door support. Mounting holes are formed in the two ends of the door support respectively, a worm gear lead screw lifting machine is mounted at the top of the door support, a lead screw of the worm gear lead screw lifting machine is arranged in the vertical direction, a top shaft is fixed to the lower end of the lead screw of the worm gear lead screw lifting machine, and two side arms of the door support are symmetrically arranged relative to the lead screw of the worm gear lead screw lifting machine. In conclusion, the tool mainly comprises the door support, the fastening hoop, the worm gear lead screw lifting machine, the pushing sleeve, the supporting ring and the like, the door support serves as a basic frame of the whole tool, and a disassembling notch and an assembling notch in the door support are used for positioning the fastening hoop to ensure that the fastening hoop is correctly installed on a target component; by using the tool, an operator can complete disassembly and assembly of the fan assembly more safely and more efficiently.

Description

Technical Field

[0001] The utility model belongs to the technical field of parking heaters, and particularly relates to a disassembly and assembly tool for a parking heater fan assembly. Background Art

[0002] The parking heater fan assembly is responsible for transferring the heat generated by the parking heater to the vehicle interior through air to achieve the purpose of preheating. Under cold weather conditions, the parking heater can heat the vehicle when the engine is not running, which is very helpful for improving driving comfort and reducing engine wear during cold starts; the utility model patent with the patent number ZL202020065694.8 discloses a motor assembly of a parking heater. As Figure 1 shown, the motor assembly of the parking heater includes a motor base 1, a motor 2, a wind wheel 4, a fan 5 and a connecting piece 9. The motor 2 is installed in the motor base 1. The wind wheel 4 and the fan 5 are respectively installed at both ends of the main shaft of the motor 2 in a tightly-fitting manner. The more professional name of the wind wheel 4 in the industry is an internal impeller, and the more professional name of the fan 5 in the industry is a fan. The connecting piece 9 (also called a fan cross in the industry) is installed on the motor base 1 in a tightly-fitting manner. When the motor 2 is damaged, the motor 2 needs to be replaced, and the rest of the components can be reused. The internal impeller, the fan and the fan cross are all installed in a tightly-fitting manner. There is no special tool for disassembly and installation. Operators usually use tools such as crowbars and hammers. This method is extremely easy to damage each component, and disassembly and installation are time-consuming and laborious, with low work efficiency. Content of the Utility Model

[0003] The utility model aims to provide a disassembly and assembly tool for a parking heater fan assembly, and solve the technical problem that it is time-consuming and laborious to disassemble and install the motor of the parking heater fan assembly in the prior art.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A disassembly and assembly tool for a parking heater fan assembly includes a fastening hoop, a pushing sleeve, a support ring and a door bracket;

[0006] Installation holes are respectively arranged at both ends of the door bracket. A worm gear screw jack is installed at the top of the door bracket. The screw of the worm gear screw jack is arranged in the vertical direction, and a top shaft is fixed at the lower end of the screw of the worm gear screw jack. The two side arms of the door bracket are symmetrically arranged with respect to the screw of the worm gear screw jack. A pair of disassembly notches and a pair of assembly notches are arranged on the door bracket. The disassembly notches are located above the assembly notches. The pair of disassembly notches and the pair of assembly notches are correspondingly arranged on the two side arms of the door bracket. Perforations are arranged at the disassembly notches and the assembly notches, and fixing bolts are inserted through the perforations;

[0007] The fastening hoop includes two hoop members. Docking portions are provided at both ends of the hoop members. A rectangular clamping block is fixed in the middle of the outer arc of the hoop member. A threaded hole adapted to the fixing bolt is provided on the rectangular clamping block. The docking portions at both ends of the two hoop members are docked, and the docking portions of the two hoop members are fixedly connected by a locking bolt;

[0008] The fastening hoop can be installed on two disassembly notches or two assembly notches. When installed, the rectangular clamping block is located within the disassembly notch or the assembly notch and is fixed by a fixing bolt;

[0009] The push sleeve is a sleeve structure with an open bottom. A vertical shaft is fixed at the center of the top of the push sleeve;

[0010] The upper outer diameter of the support ring is greater than the lower outer diameter, the upper inner diameter of the support ring is less than the lower inner diameter, and an inner edge is formed between the upper and lower inner walls of the support ring.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model mainly includes components such as a door bracket, a fastening hoop, a worm gear screw jack, a push sleeve, and a support ring. The door bracket serves as the basic framework of the entire tool. The disassembly notches and assembly notches on the door bracket are used to position the fastening hoop to ensure its correct installation on the target component; The worm gear screw jack drives the screw rod to move up and down by manually rotating the handwheel, thereby providing the required jacking force; The fastening hoop is composed of two hoop members and is used to clamp the built-in impeller or assist in fixing the fan cross and the fan. The rectangular clamping block on the hoop member cooperates with the fixing bolt on the door bracket to ensure the stability of the hoop during operation; The push sleeve is used to guide and apply force to the fan cross and the fan during the assembly process to ensure their accurate installation; The support ring is used to support the built-in impeller to prevent it from skewing during the assembly process; The whole set of tools is small and convenient, and the operator can disassemble and assemble the fan assembly more safely and efficiently. Description of the Drawings

[0012] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0013] Figure 1 is a structural schematic diagram of the motor assembly of a prior art parking heater;

[0014] Figure 2 is a structural schematic diagram of the door bracket;

[0015] Figure 3 is a structural schematic diagram of the worm gear screw jack;

[0016] Figure 4 is a structural schematic diagram of the fastening hoop;

[0017] Figure 5 is a structural schematic diagram of the pushing sleeve;

[0018] Figure 6 is a structural schematic diagram of the support ring. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] The following further describes the present invention in detail in conjunction with the embodiments.

[0021] A specific embodiment of a disassembly and assembly tool for a parking heater fan assembly provided by the present invention:

[0022] As Figure 2 shown, the disassembly and assembly tool for the parking heater fan assembly includes a fastening hoop 10, a pushing sleeve 11, a support ring 12 and a door bracket 13;

[0023] Installation holes 14 are respectively arranged at both ends of the door bracket 13. A worm gear screw jack 15 is installed at the top of the door bracket 13. The screw rod of the worm gear screw jack 15 is arranged in the vertical direction. The worm gear screw jack 15 is a prior art. As Figure 3 shown, it mainly includes a hand wheel 16, a screw rod 17, a ball nut 18 and a worm 19. By rotating the hand wheel 16, the screw rod 17 can be driven to lift through the worm 19 and the ball nut 18. A top shaft 20 is fixed to the lower end of the screw rod 17 of the worm gear screw jack 15. The two side arms of the door bracket 13 are symmetrically arranged with respect to the screw rod 17 of the worm gear screw jack 15. A pair of disassembly notches 21 and a pair of assembly notches 22 are arranged on the door bracket 13. The disassembly notches 21 are located above the assembly notches 22. The pair of disassembly notches 21 and the pair of assembly notches 22 are correspondingly arranged on the two side arms of the door bracket 13. Through holes are arranged at the disassembly notches 21 and the assembly notches 22, and fixing bolts 23 are inserted into the through holes;

[0024] As Figure 4 shown, the fastening hoop 10 includes two hoop members 24. Docking parts 27 are arranged at both ends of the hoop member 24. A rectangular clamping block 25 is fixed in the middle of the outer arc of the hoop member 24. A threaded hole adapted to the fixing bolt 23 is opened on the rectangular clamping block 25. The docking parts 27 at both ends of the two hoop members 24 are docked, and the docking parts 27 of the two hoop members 24 are fixedly connected by a locking bolt 26;

[0025] The fastening hoop 10 can be installed on either of the two disassembly notches 21 or on the two assembly notches 22. During installation, the rectangular clamping block 25 is located within the disassembly notch 21 or the assembly notch 22 and is fixed by the fixing bolt 23;

[0026] As Figure 5 shown, the pushing sleeve 11 is a sleeve structure with an open bottom, and a vertical shaft 28 is fixedly installed at the center of the top of the pushing sleeve 11;

[0027] As Figure 6 shown, the upper outer diameter of the support ring 12 is larger than the lower outer diameter, the upper inner diameter of the support ring 12 is smaller than the lower inner diameter, and an inner edge 29 is formed between the upper and lower inner walls of the support ring 12.

[0028] When disassembling the motor using the disassembly and assembly tool for the parking heater blower assembly of this embodiment, the door bracket 13 can be fixed on a flat tabletop through the mounting holes 14 and bolts. First, the fastening hoop 10 is sleeved on the outer periphery of the built-in impeller and fixed using the locking bolt 26. Then, the fastening hoop 10 is installed on the two disassembly notches 21 and fixed by the fixing bolt 23. After installation, the axis of the top shaft 20 at the lower end of the lead screw 17 of the worm screw jack 15 coincides with the axis of the motor main shaft of the parking heater blower assembly. Then, turn the handwheel 16 to lower the lead screw 17. The top shaft 20 generates a top pressure on the motor main shaft of the parking heater blower assembly, and the motor of the parking heater blower assembly starts to move downward until the built-in impeller is detached from the motor main shaft, completing the disassembly of the built-in impeller.

[0029] When assembling a new motor with the built-in impeller, fan, and blower cross, first fix the fastening hoop 10 at the lower part of the support ring 12. The fastening hoop 10 is fixed on the two assembly notches 22. Place the built-in impeller within the support ring 12, and the inner edge 29 supports the built-in impeller. Then, align the lower end of the motor main shaft with the hole of the built-in impeller and the upper end of the motor main shaft with the top shaft 20. Turn the handwheel 16, and the top shaft 20 pushes the motor main shaft downward, enabling the lower end of the motor main shaft to be pressed into the hole of the built-in impeller to complete the installation of the built-in impeller. Immediately install the blower cross. Place the blower cross on the motor base, and position the pushing sleeve 11 above the blower cross, ensuring that the vertical shaft 28 of the pushing sleeve 11 corresponds to the top shaft 20 vertically. Turn the handwheel 16, and the top shaft 20 moves downward to push the pushing sleeve 11. The pushing sleeve 11 applies force to the blower cross, finally installing the blower cross on the motor base. Immediately install the fan. Initially place the fan on the upper end of the motor main shaft, position the pushing sleeve 11 on the fan, and turn the handwheel 16 again. The top shaft 20 pushes the pushing sleeve 11, and the pushing sleeve 11 applies force to the fan, finally installing the fan on the upper end of the motor main shaft.

[0030] It should be noted that in this text, terms such as "including", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. Parking heater blower assembly disassembly and assembly tool, characterized in that: It includes a fastening hoop, a jacking sleeve, a support ring and a door bracket; Installation holes are respectively arranged at both ends of the door bracket. A worm gear screw jack is installed at the top of the door bracket. The screw of the worm gear screw jack is arranged in the vertical direction, and a top shaft is fixed at the lower end of the screw of the worm gear screw jack. The two side arms of the door bracket are symmetrically arranged with respect to the screw of the worm gear screw jack. A pair of disassembly notches and a pair of assembly notches are arranged on the door bracket. The disassembly notches are located above the assembly notches. The pair of disassembly notches and the pair of assembly notches are correspondingly opened on the two side arms of the door bracket. Through holes are arranged at the disassembly notches and the assembly notches, and fixing bolts are inserted into the through holes; The fastening hoop includes two hoop members. Docking parts are arranged at both ends of the hoop member. A rectangular clamping block is fixed in the middle of the outer arc of the hoop member. A threaded hole adapted to the fixing bolt is opened on the rectangular clamping block. The docking parts at both ends of the two hoop members are docked, and the docking parts of the two hoop members are fixedly connected by locking bolts; The fastening hoop can be installed on the two disassembly notches or on the two assembly notches. During installation, the rectangular clamping block is located in the disassembly notch or the assembly notch and is fixed by the fixing bolt; The jacking sleeve is a sleeve structure with an open bottom, and a vertical shaft is fixed at the center of the top of the jacking sleeve; The upper outer diameter of the support ring is larger than the lower outer diameter, the upper inner diameter of the support ring is smaller than the lower inner diameter, and an inner edge is formed between the upper and lower inner walls of the support ring.

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