An electric wrench that is easy to lubricate.

Abstract

This utility model relates to the field of power tool technology and discloses an electric wrench that facilitates the addition of lubricating oil. It includes a housing, a handle fixedly mounted on the bottom of the housing, a battery holder at the bottom of the handle, a mounting cover on one side of the housing, an oil-sealing assembly on the top of the mounting cover, and a storage and delivery assembly on the top of the housing. This utility model achieves oil sealing by incorporating the oil-sealing assembly. When the storage and delivery assembly is in operation, lubricating oil enters the threaded pipe through hose one and hose two. Under pressure, the pressing plate, sliding rod, and sealing plate descend, compressing the spring. The lubricating oil then enters the oil delivery pipe through the oil inlet and into the mounting cover, lubricating the internal gear reduction and impact structures. This facilitates the addition of lubricating oil while preventing leakage during use, thus achieving the effect of oil sealing.

Description

Technical Field

[0001] This utility model relates to the field of power tool technology, specifically to an electric wrench that is easy to add lubricating oil to. Background Technology

[0002] An electric wrench is a power tool widely used in industrial assembly, construction maintenance and other fields. It uses an electric motor as a power source and converts rotational motion into strong torque through a transmission mechanism to achieve quick assembly and disassembly of bolts and nuts. Compared with traditional manual wrenches, it has the advantages of high efficiency and labor saving, precise and controllable torque, and applicability to various working conditions. It can significantly improve work efficiency and reduce labor intensity. It is commonly found in automobile manufacturing, bridge construction, and machinery maintenance, and is an indispensable and powerful assistant in modern mechanized operations.

[0003] In the existing technology, electric wrenches are used in the production of home appliances and equipment. They are used to quickly tighten the outer shell of home appliances such as refrigerators and air conditioners and to assemble internal parts, thereby improving production efficiency. However, when lubricating the electric wrench, the shell needs to be disassembled and reinstalled, which makes the lubrication efficiency slow. In addition, special lubrication tools are required when the electric wrench needs to be lubricated, and lubrication cannot be performed at any time.

[0004] Therefore, an electric wrench that is easy to add lubricating oil was proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an electric wrench that is easy to add lubricating oil to, which solves the technical problems of slow lubrication efficiency caused by the need to disassemble and reinstall the housing when lubricating the electric wrench, and the need for special lubrication tools when lubricating the electric wrench, which prevents the lubrication operation from being carried out at any time. It achieves the purpose of sealing, storing and transporting lubricating oil.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric wrench that facilitates the addition of lubricating oil, comprising a housing, a handle fixedly installed at the bottom of the housing, a battery holder provided at the bottom of the handle, a mounting cover provided on one side of the housing, an oiling sealing assembly provided at the top of the mounting cover, and a storage and conveying assembly provided at the top of the housing.

[0007] Preferably, the refueling sealing assembly specifically includes: an oil supply pipe, connected to and installed on the top of the mounting cover; a sleeve, connected to and installed on the top of the oil supply pipe; a threaded pipe I, connected to and installed on the top of the sleeve; a fixed disc, fixedly installed between the inner walls of the sleeve and the extrusion disc, and slidably connected between the inner walls of the threaded pipe I; a small rotary joint, disposed on the top of the housing; a hose I, connected to and installed on one side of the small rotary joint; a hose II, connected to and installed on the other side of the small rotary joint; and a connecting cover, connected to and installed on the other end of hose I.

[0008] Preferably, the outer wall of the threaded pipe is threadedly connected to a threaded cap, a sealing gasket is fixedly installed on the top of the inner wall of the threaded cap, and oil inlets are evenly spaced on the top circumference of the fixed plate.

[0009] Preferably, a slide rod is fixedly installed at the bottom of the extrusion disc, the bottom of the slide rod movably passes through the top of the fixed disc and extends to the bottom of the fixed disc, and a sealing disc is fixedly installed at the bottom of the slide rod, the top of the sealing disc being in contact with the bottom of the fixed disc.

[0010] Preferably, a spring is movably sleeved on the outer wall of the slide rod. One end of the spring is fixedly connected to the bottom of the extrusion plate, and the other end of the spring is fixedly connected to the top of the fixed plate. The other end of the second hose is connected to the top of the first threaded cap. Through the cooperation of the first threaded hose and the first threaded cap, oil can be directly unscrewed from the top of the mounting cover. At the same time, it can be used in conjunction with the storage and conveying assembly to perform oiling operations without disassembling the shell or internal parts, avoiding the cumbersome steps of disassembling and lubricating traditional electric wrenches. The sealing gasket combined with the threaded structure can prevent lubricating oil from overflowing or external dust from entering during oiling. The design of the extrusion plate and the spring forms a pressing and oil supply linkage. Under the action of the storage and conveying assembly, when the extrusion plate is pressed, the slide rod drives the sealing plate to move down, opening the oil inlet of the fixed plate for oil supply. After releasing, the spring returns to its original position, and the sealing plate closes the oil inlet to prevent oil leakage. A small rotary joint connects the first hose and the second hose, which can rotate and disassemble the first threaded cap to achieve the effect of oiling and sealing.

[0011] Preferably, the storage and conveying assembly specifically includes: an oil box, fixedly installed on the top of the housing; an observation window, located on the front of the oil box; and a threaded tube, connected to and installed on the top of the oil box.

[0012] Preferably, one side of the oil box has a through hole, the other side of the oil box is connected to the other side of the connecting cover, the outer wall of the threaded tube is threadedly connected to the threaded cover, the top of the inner wall of the threaded cover is fixedly installed with a sealing plug, and the inner walls of the through hole are fixedly installed with an internal threaded sleeve.

[0013] Preferably, the inner wall of the internal threaded sleeve is threadedly connected to a threaded rod. One end of the threaded rod is fixedly mounted with a knob, and the other end of the threaded rod is rotatably connected to a push plate. A sealing sleeve is fixedly fitted on the outer wall of the push plate. The outer wall of the sealing sleeve fits against the inner wall of the oil box. A fixed quantity of lubricating oil can be stored in the oil box, and the oil level can be viewed in real time through an observation window, reducing the frequency of refilling. The design of the threaded rod and the push plate allows the push plate to be manually pushed to squeeze the lubricating oil in the oil box into the delivery pipe. The sealing sleeve fits against the inner wall of the oil box to prevent lubricating oil leakage, thereby achieving the effect of storage and delivery.

[0014] This invention provides an electric wrench that facilitates the addition of lubricating oil. It offers the following advantages: (1) This utility model can perform oiling and sealing by setting an oiling and sealing component. When the storage and conveying component is working, the lubricating oil enters the threaded pipe through hose one and hose two. Under the action of pressure, the pressing plate, slide bar and sealing plate are pushed down, the spring is compressed, and the lubricating oil enters the oil delivery pipe through the oil delivery port. After entering the installation cover, it lubricates the internal gear reduction structure and impact structure, which facilitates the addition of lubricating oil and prevents the lubricating oil from leaking out during use, thereby achieving the effect of oiling and sealing. (2) This utility model can transport lubricating oil by setting up a storage and transport component. Rotate the threaded cover two and add lubricating oil to the oil box through the threaded tube two. During transport, rotate the knob to drive the threaded rod to rotate. Under the action of the inner threaded sleeve, push the push plate and sealing sleeve to move, push the lubricating oil in the oil box into the connecting cover and hose one, and then transport the oil. No disassembly is required, and temporary oiling can be done quickly. This reduces the process of disassembling and reinstalling the shell, and makes it convenient and quick to complete the oiling steps, thereby achieving the effect of storage and transport. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural diagram of the oil pipeline of this utility model; Figure 3 This is a cross-sectional structural diagram of the threaded cap of this utility model; Figure 4 This is a partial structural diagram of the oil inlet of this utility model; Figure 5 This is a partial structural diagram of the storage and transport component of this utility model.

[0016] In the diagram: 1. Housing, 2. Handle, 3. Battery holder, 4. Mounting cover, 5. Oil filling and sealing assembly, 511. Oil pipe, 512. Sleeve, 513. Threaded pipe I, 514. Threaded cap I, 515. Fixing plate, 516. Oil inlet, 517. Extrusion plate, 518. Slide rod, 519. Sealing plate, 5111. Spring, 5112. Small rotary joint, 5113. Hoses I, 5114. Hoses II, 5115. Connecting cover, 6. Storage and conveying assembly, 611. Oil box, 612. Observation window, 613. Threaded pipe II, 614. Threaded cap II, 615. Sealing plug, 616. Internal threaded sleeve, 617. Threaded rod, 618. Knob, 619. Push plate, 6111. Sealing sleeve. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Example 1

[0019] Addressing the current problems of slow lubrication efficiency due to the need to disassemble and reassemble the housing when lubricating electric wrenches, and the requirement for specialized lubrication tools that prevent on-the-spot lubrication, this invention provides a preferred embodiment of an electric wrench that facilitates the addition of lubricating oil. Figure 1-5 As shown: An electric wrench that facilitates the addition of lubricating oil includes a housing 1, a handle 2 fixedly mounted on the bottom of the housing 1, a battery holder 3 provided at the bottom of the handle 2, a mounting cover 4 provided on one side of the housing 1, an oil sealing assembly 5 provided on the top of the mounting cover 4, and a storage and delivery assembly 6 provided on the top of the housing 1.

[0020] The refueling sealing assembly 5 specifically includes: an oil supply pipe 511, connected to the top of the mounting cover 4; a sleeve 512, connected to the top of the oil supply pipe 511; a threaded pipe 513, connected to the top of the sleeve 512; a fixed disc 515, fixedly installed between the inner walls of the sleeve 512 and the compression disc 517, slidably connected between the inner walls of the threaded pipe 513; a small rotary joint 5112, located on the top of the housing 1; a hose 5113, connected to one side of the small rotary joint 517; a hose 5114, connected to the other side of the small rotary joint 517; and a connecting cover 5115, connected to the other end of the hose 5113.

[0021] The outer wall of the threaded pipe 513 is threadedly connected to a threaded cap 514. A sealing gasket is fixedly installed on the top of the inner wall of the threaded cap 514. Oil inlets 516 are evenly spaced and equidistantly opened on the top circumference of the fixed plate 515.

[0022] A slide rod 518 is fixedly installed at the bottom of the extrusion plate 517. The bottom of the slide rod 518 moves through the top of the fixed plate 515 and extends to the bottom of the fixed plate 515. A sealing plate 519 is fixedly installed at the bottom of the slide rod 518. The top of the sealing plate 519 is in contact with the bottom of the fixed plate 515.

[0023] A spring 5111 is movably sleeved on the outer wall of the slide rod 518. One end of the spring 5111 is fixedly connected to the bottom of the extrusion plate 517, and the other end of the spring 5111 is fixedly connected to the top of the fixed plate 515. The other end of the second hose 5114 is connected to the top of the first threaded cap 514.

[0024] In this example, lubricating oil can be sealed by setting up the oil sealing assembly 5. When the storage and delivery assembly 6 is working, lubricating oil enters the threaded pipe 513 through the first hose 5113 and the second hose 5114. Under the action of pressure, the pressing plate 517, the slide bar 518 and the sealing plate 519 are pushed down, the spring 5111 is compressed, and the lubricating oil enters the oil delivery pipe 511 through the oil delivery port 516. Then it enters the mounting cover 4 to lubricate the internal gear reduction structure and impact structure, thereby achieving the function of oil sealing. Example 2

[0025] Based on Embodiment 1, a preferred embodiment of the electric wrench provided by this utility model that facilitates the addition of lubricating oil is provided, for example... Figure 1-5 As shown: The storage and conveying assembly 6 specifically includes: an oil box 611, which is fixedly installed on the top of the housing 1; an observation window 612, which is set on the front of the oil box 611; and a threaded tube 613, which is connected to and installed on the top of the oil box 611.

[0026] One side of the oil box 611 has a through hole, and the other side of the oil box 611 is connected to the other side of the connecting cover 5115. The outer wall of the threaded tube 613 is threadedly connected to the threaded cover 614. The top of the inner wall of the threaded cover 614 is fixedly installed with a sealing plug 615. An internal threaded sleeve 616 is fixedly installed between the inner walls of the through hole.

[0027] The inner wall of the internal threaded sleeve 616 is threadedly connected to a threaded rod 617. A knob 618 is fixedly installed at one end of the threaded rod 617, and a push plate 619 is rotatably connected to the other end of the threaded rod 617. A sealing sleeve 6111 is fixedly fitted on the outer wall of the push plate 619, and the outer wall of the sealing sleeve 6111 fits against the inner wall of the oil box 611.

[0028] In this example, the lubricating oil can be conveyed by setting up the storage and conveying component 6. By rotating the threaded cover 614, lubricating oil is added to the oil box 611 through the threaded tube 613. During conveying, rotating the knob 618 drives the threaded rod 617 to rotate. Under the action of the inner threaded sleeve 616, the push plate 619 and the sealing sleeve 6111 are pushed to move, pushing the lubricating oil in the oil box 611 into the connecting cover 5115 and the hose 5113, and then the oil is conveyed. No disassembly is required, and temporary refilling can be done quickly, thereby achieving the function of storage and conveying.

[0029] Working principle: First, when adding lubricating oil, rotate the threaded cap 614 to add lubricating oil to the oil box 611 through the threaded tube 613. The lubricating oil capacity can be observed through the observation window 612. The threaded cap 614 and the sealing plug 615 are in a reset seal. When it is necessary to transport lubricating oil to the gear reduction structure and impact structure inside the mounting cover 4, rotate the knob 618 to drive the threaded rod 617 to rotate. Under the action of the inner threaded sleeve 616, the push plate 619 and the sealing sleeve 6111 are pushed to move, pushing the lubricating oil in the oil box 611 into the connecting cover 5115 and the first hose 5113. No disassembly is required, and temporary refilling can be done quickly. The lubricating oil enters the threaded tube 513 through the first hose 5113 and the second hose 5114. Under the action of pressure, the pressing plate 517, the slide rod 518, and the sealing plate 519 are pushed down, the spring 5111 is compressed, and the lubricating oil is transported through the oil delivery system. The oil inlet 516 enters the oil pipe 511 and then enters the mounting cover 4 to lubricate the internal gear reduction structure and impact structure. Then, the knob 618 and threaded rod 617 are rotated in the opposite direction to retract the push plate 619. The spring 5111 releases its stored energy, causing the extrusion plate 517, slide rod 518, and sealing plate 519 to rise. The sealing plate 519 seals the oil inlet 516 to prevent the lubricating oil from flowing back. The threaded cover 514 is rotated to rotate the hose 5114 and the small rotary joint 5112. The sealing ring of the threaded cover 514 separates from the threaded pipe 513, allowing the threaded cover 514 to be disassembled. At the same time, the extrusion plate 517 can be pressed with a tool to allow the lubricating oil to enter directly from the threaded pipe 513, thereby achieving the functions of refueling, sealing, storage, and transportation. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electric wrench that facilitates the addition of lubricating oil, comprising a housing (1), characterized in that: A handle (2) is fixedly installed at the bottom of the housing (1), a battery holder (3) is provided at the bottom of the handle (2), a mounting cover (4) is provided on one side of the housing (1), an oil sealing assembly (5) is provided at the top of the mounting cover (4), and a storage and conveying assembly (6) is provided at the top of the housing (1); the oil sealing assembly (5) specifically includes: The oil pipeline (511) is connected to the top of the mounting cover (4); Sleeve (512) is connected to the top of oil pipeline (511); Threaded pipe 1 (513) is connected to the top of sleeve (512); The fixed plate (515) is fixedly installed between the inner walls of the sleeve (512). The extrusion disc (517) is slidably connected between the inner walls of the threaded tube (513); A small rotary joint (5112) is disposed on the top of the housing (1); Hose 1 (5113) is connected to one side of the small rotary joint (5112); Hose 2 (5114) is connected to the other side of the small rotary joint (5112); Connecting cover (5115), which is connected to the other end of hose one (5113).

2. The electric wrench for easy addition of lubricating oil according to claim 1, characterized in that: The outer wall of the threaded pipe (513) is threadedly connected to the threaded cap (514), and a sealing gasket is fixedly installed on the top of the inner wall of the threaded cap (514). The top circumference of the fixed plate (515) is evenly provided with oil inlets (516).

3. The electric wrench for easy addition of lubricating oil according to claim 2, characterized in that: A slide rod (518) is fixedly installed at the bottom of the extrusion disc (517). The bottom of the slide rod (518) moves through the top of the fixed disc (515) and extends to the bottom of the fixed disc (515). A sealing disc (519) is fixedly installed at the bottom of the slide rod (518). The top of the sealing disc (519) is in contact with the bottom of the fixed disc (515).

4. The electric wrench for easy addition of lubricating oil according to claim 3, characterized in that: The outer wall of the slide rod (518) is movably fitted with a spring (5111). One end of the spring (5111) is fixedly connected to the bottom of the extrusion plate (517), and the other end of the spring (5111) is fixedly connected to the top of the fixed plate (515). The other end of the second hose (5114) is connected to the top of the first threaded cap (514).

5. An electric wrench for easy addition of lubricating oil according to claim 1, characterized in that: The storage and delivery component (6) specifically includes: Oil box (611) is fixedly installed on the top of housing (1); An observation window (612) is located on the front of the oil box (611); The threaded tube 2 (613) is connected to the top of the oil box (611).

6. An electric wrench for easy addition of lubricating oil according to claim 5, characterized in that: One side of the oil box (611) has a through hole, and the other side of the oil box (611) is connected to the other side of the connecting cover (5115). The outer wall of the threaded tube (613) is threadedly connected to the threaded cover (614). The top of the inner wall of the threaded cover (614) is fixedly installed with a sealing plug (615). An internal threaded sleeve (616) is fixedly installed between the inner walls of the through hole.

7. An electric wrench for easy addition of lubricating oil according to claim 6, characterized in that: The inner wall of the internal threaded sleeve (616) is threadedly connected to a threaded rod (617). A knob (618) is fixedly installed at one end of the threaded rod (617), and a push plate (619) is rotatably connected to the other end of the threaded rod (617). A sealing sleeve (6111) is fixedly fitted on the outer wall of the push plate (619), and the outer wall of the sealing sleeve (6111) is in contact with the inner wall of the oil box (611).

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