Rhinestone gearbox structure

Abstract

The utility model relates to the technical field of water drill gear box structures, in particular to a water drill gear box structure which comprises a water drill main body used for punching, a rotor is arranged in the water drill main body, a large gear is arranged at one end of the rotor, a head shell is arranged on the outer side of the large gear, a middle cover is arranged on one side of the head shell, and a copper pipe is arranged in the middle cover. An output shaft is arranged on the outer side of the copper pipe, an elastic check ring for a hole is tightly attached between the output shaft and the copper pipe, a water seal is tightly attached to one side of the elastic check ring for the hole, a flat key is arranged on one side of the large gear, and a first through hole and a U-shaped groove are formed in one side of the middle cover. The water seal is simple in structure and matched with the first through hole for use, the copper pipe is accurately fixed, deformation of the copper pipe is small, and therefore the service life of the water seal is prolonged, and accumulated water at the copper pipe can be discharged through the second through hole by arranging the second through hole.

Description

Technical Field

[0001] The utility model relates to the technical field of water drill gear box structures, in particular to a water drill gear box structure. Background Art

[0002] A handheld water drill is a handheld power tool, mainly used for drilling holes in hard materials such as concrete, masonry, and tiles. The gearbox of a handheld water drill is a mechanical transmission device, mainly used to transmit power and adjust the rotation speed. The gearbox is composed of multiple gears, thereby realizing the functions of power transmission and speed regulation.

[0003] In order to prevent water from entering the gearbox of a water drill, a copper tube is usually connected externally, and then a water seal is set at both ends of the output shaft. Since the copper tube is fixed by the water seals at both ends of the output shaft, the copper tube at the water inlet end is easily deformed by external force, which makes the water seal easily damaged. In addition, the position of the water inlet of the copper tube is unreasonable. During use, the copper tube is easily bumped and deformed, resulting in the water inlet part being unusable. Therefore, a water drill gearbox structure is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide a water drill gear box structure to solve the problems of easy damage of water seal and unreasonable position of copper pipe water inlet.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A water drill gearbox structure includes a water drill rig main body for drilling holes, a rotor is provided in the water drill rig main body, a large gear is provided at one end of the rotor, a head shell is provided on the outside of the large gear, an intermediate cover is provided on one side of the head shell, a copper tube is provided in the intermediate cover, an output shaft is provided on the outside of the copper tube, a hole elastic ring is tightly fitted between the output shaft and the copper tube, a water seal is tightly fitted on one side of the hole elastic ring, a flat key is provided on one side of the large gear, and a first through hole and a U-shaped groove are opened on one side of the intermediate cover.

[0007] Preferably, one end of the copper tube is fixed through a first through hole opened on one side of the middle cover, and the other end of the copper tube is fixed through two water seals. The water seal is fixed by an elastic retaining ring through a hole in the hole wall at the front end of the output shaft.

[0008] Preferably, a first oil seal is provided between the head shell and the output shaft, a second oil seal is provided between the middle cover and the output shaft, and a third oil seal is provided between the middle cover and the rotor.

[0009] Preferably, a sealing ring is provided between the head shell and the middle cover, and one end of the rotor is arranged in the middle cover.

[0010] Preferably, the inner hole of the large gear is interference-fitted with the outer circle of the output shaft through a flat key, and an annular groove is provided on the large gear.

[0011] Preferably, the copper tube has two ninety-degree bends as a whole, and the water inlet end of the copper tube is placed on the switch side of the water drilling rig body.

[0012] Preferably, second through holes are provided on both sides of the first through hole provided in the middle cover, and the second through holes are arranged in a U shape.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] In the utility model, the output shaft, head shell, large gear, intermediate cover, copper tube, rotor, elastic retaining ring for hole, water seal and water drill body are provided, so that one end of the copper tube is conveniently fixed. The first through hole is provided and the copper tube has two ninety-degree bends, which facilitates the fixation of the other end of the copper tube. The water inlet end of the copper tube is placed on the switch side of the water drill body, which improves the fixing accuracy of the copper tube, reduces the deformation of the copper tube, and extends the service life of the water seal. The second through hole is provided so that water accumulated in the copper tube can be discharged through the second through hole. The flat key and annular groove are provided, and since the inner hole of the large gear is interference fit with the outer circle of the output shaft through the flat key, the annular groove is provided on the large gear and can be disassembled by a puller. The first oil seal, second oil seal, third oil seal and sealing ring are provided, and the sealing effect between the head shell and the output shaft, the sealing effect between the intermediate cover and the output shaft, the sealing effect between the intermediate cover and the rotor, and the sealing effect between the head shell and the intermediate cover are increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 Schematic diagram of the structure at A;

[0017] Figure 3 For this utility model Figure 1 Schematic diagram of the structure at B;

[0018] Figure 4 For this utility model Figure 1 Schematic diagram of the aa structure;

[0019] Figure 5 This is a schematic diagram of the first through hole structure of the utility model;

[0020] Figure 6 For this utility model Figure 5 Schematic diagram of the bb structure;

[0021] Figure 7This is a schematic diagram of the structure of the large gear of the utility model;

[0022] Figure 8 For this utility model Figure 7 Schematic diagram of the cc structure;

[0023] Figure 9 This is a schematic diagram of the copper tube structure of the utility model.

[0024] In the figure: 1. output shaft; 2. head shell; 3. large gear; 4. middle cover; 5. copper tube; 6. rotor; 7. elastic retaining ring for hole; 8. water seal; 9. first oil seal; 10. flat key; 11. second oil seal; 12. third oil seal; 13. annular groove; 14. first through hole; 15. second through hole; 16. U-shaped groove; 17. sealing ring; 18. water drill body. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0028] See also Figure 1-9 , the utility model provides a technical solution:

[0029] A water drill gearbox structure includes a water drill rig main body 18 for drilling holes, a rotor 6 is provided in the water drill rig main body 18, a large gear 3 is provided at one end of the rotor 6, a head shell 2 is provided on the outside of the large gear 3, an intermediate cover 4 is provided on one side of the head shell 2, a copper tube 5 is provided in the intermediate cover 4, an output shaft 1 is provided on the outside of the copper tube 5, a hole elastic retaining ring 7 is tightly fitted between the output shaft 1 and the copper tube 5, a water seal 8 is tightly fitted on one side of the hole elastic retaining ring 7, a flat key 10 is provided on one side of the large gear 3, a first through hole 14 and a U-shaped groove 16 are opened on one side of the intermediate cover 4, the water seal 8 is provided, and is used in conjunction with the first through hole 14 to accurately fix the copper tube 5, and the deformation of the copper tube 5 is small, thereby extending the service life of the water seal 8.

[0030] One end of the copper tube 5 is fixed through the first through hole 14 opened on one side of the intermediate cover 4, and the other end of the copper tube 5 is fixed by two water seals 8. The water seal 8 is fixed with an elastic retaining ring 7 through a hole in the hole wall at the front end of the output shaft 1, so as to facilitate the fixation of one end of the copper tube 5; a first oil seal 9 is provided between the head shell 2 and the output shaft 1, a second oil seal 11 is provided between the intermediate cover 4 and the output shaft 1, and a third oil seal 12 is provided between the intermediate cover 4 and the rotor 6, so as to increase the sealing effect between the head shell 2 and the output shaft 1, the intermediate cover 4 and the output shaft 1, and the intermediate cover 4 and the rotor 6; between the head shell 2 and the intermediate cover 4 A sealing ring 17 is provided, and one end of the rotor 6 is arranged in the middle cover 4 to facilitate the rotation of the rotor 6; the inner hole of the large gear 3 is interference fit with the outer circle of the output shaft 1 through the flat key 10, and an annular groove 13 is provided on the large gear 3, which is convenient for disassembly by aligning the annular groove 13 with the puller; the copper tube 5 has two ninety-degree bends as a whole, and the water inlet end of the copper tube 5 is placed on the switch side of the water drill body 18, so that the position of the copper tube 5 is reasonable; second through holes 15 are provided on both sides of the first through hole 14 opened in the middle cover 4, and the second through holes 15 are U-shaped, which is convenient for fixing the other end of the copper tube 5.

[0031] Working process: When the water drill body 18 is in use, the external power supply of the water drill body 18 is powered on, the user holds the handle of the water drill body 18, aligns the output shaft 1 with the position where the hole needs to be drilled, and starts the switch of the water drill body 18. The rotor 6 drives the large gear 3 and the output shaft 1 to rotate at high speed to perform the drilling process. During the drilling process, the copper tube 5 effectively dissipates heat inside the water drill body 18. Since the copper tube 5 has two ninety-degree bends as a whole, and the middle cover 4 is provided with a first through hole 14, the specification of the first through hole 14 is φ6, the water inlet end of the copper tube 5 is placed on the switch side of the water drill body 18, and the other end is sealed by two water seals 8. The copper tube 5 is fixed in place, thereby effectively fixing the copper tube 5 and improving the fixing accuracy of the copper tube 5. When the large gear 3 needs to be disassembled, the user can use a puller to align the annular groove 13 for disassembly. The accumulated water at the copper tube 5 can be discharged through the second through hole 15. The first oil seal 9 increases the sealing effect between the head shell 2 and the output shaft 1. The second oil seal 11 increases the sealing effect between the middle cover 4 and the output shaft 1. The third oil seal 12 increases the sealing effect between the middle cover 4 and the rotor 6. The water seal 8 is provided and used in conjunction with the first through hole 14 to accurately fix the copper tube 5. The deformation of the copper tube 5 is small, thereby extending the service life of the water seal 8.

[0032] Any matters not described in detail in this specification are prior art known to those skilled in the art. Standard parts used in this utility model are commercially available, and special-shaped parts can be customized according to the description in the specification and the accompanying drawings. The specific connection methods of each part are all conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment are all conventional models in the prior art, and the circuit connections use conventional connection methods in the prior art, which will not be described in detail here.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water drill gearbox structure, comprising a water drill body (18) for drilling holes, characterized in that: The water drill body (18) is provided with a rotor (6), one end of the rotor (6) is provided with a large gear (3), the outer side of the large gear (3) is provided with a head shell (2), one side of the head shell (2) is provided with an intermediate cover (4), a copper tube (5) is provided in the intermediate cover (4), the outer side of the copper tube (5) is provided with an output shaft (1), a hole elastic ring (7) is tightly fitted between the output shaft (1) and the copper tube (5), one side of the hole elastic ring (7) is tightly fitted with a water seal (8), one side of the large gear (3) is provided with a flat key (10), and one side of the intermediate cover (4) is provided with a first through hole (14) and a U-shaped groove (16).

2. The water drill gear box structure according to claim 1, characterized in that: One end of the copper tube (5) is fixed through a first through hole (14) opened on one side of the middle cover (4), and the other end of the copper tube (5) is fixed through two water seals (8). The water seal (8) is fixed by an elastic retaining ring (7) through a hole in the front end hole wall of the output shaft (1).

3. The water drill gear box structure according to claim 1, characterized in that: A first oil seal (9) is provided between the head shell (2) and the output shaft (1), a second oil seal (11) is provided between the intermediate cover (4) and the output shaft (1), and a third oil seal (12) is provided between the intermediate cover (4) and the rotor (6).

4. The water drill gear box structure according to claim 1, characterized in that: A sealing ring (17) is provided between the head shell (2) and the middle cover (4), and one end of the rotor (6) is arranged inside the middle cover (4).

5. The water drill gear box structure according to claim 1, characterized in that: The inner hole of the large gear (3) is interference-fitted with the outer circle of the output shaft (1) via a flat key (10), and an annular groove (13) is provided on the large gear (3).

6. The water drill gear box structure according to claim 1, characterized in that: The copper tube (5) has two ninety-degree bends as a whole, and the water inlet end of the copper tube (5) is placed on the switch side of the water drilling machine body (18).

7. The water drill gear box structure according to claim 1, characterized in that: Second through holes (15) are provided on both sides of the first through hole (14) provided on the middle cover (4), and the second through holes (15) are arranged in a U shape.

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