Shovel with shovel head easy to replace
By using screw connections and ball bearing structures, the problem of difficulty in replacing the shovel head and handle is solved, enabling quick replacement of the shovel head and making it suitable for occasions requiring frequent replacement.
Patent Information
- Application Number
- CN202520446984.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-13
AI Technical Summary
The existing connection method between the shovel head and the handle makes replacement difficult and inefficient, especially in situations where frequent replacements are required.
It adopts a screw connection and ball bearing structure. Through the cooperation of the nut and the bushing, the ball bearing moves in the groove to realize the quick replacement of the shovel head, combined with the fixing effect of the spring and the snap ring.
It enables quick and convenient replacement of the shovel head, improves replacement efficiency, and is suitable for occasions where frequent replacement is required.
Smart Images
Figure CN223838147U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shovel technology, specifically to a shovel with an easily replaceable shovel head. Background Technology
[0002] A shovel is a tool used for digging, scooping, or moving materials such as soil, sand, and snow. It typically consists of a long handle and a metal head designed to be flat and wide for efficient digging motions.
[0003] Currently, the shovel head and handle are typically fixed using methods such as steel nails, screws, or forced installation. However, once connected, replacing the shovel head is difficult or inefficient. In situations requiring frequent shovel head replacement, such as archaeology, construction sites, and geological surveys, traditional shovels are inefficient. Therefore, we propose a shovel with an easily replaceable shovel head. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a shovel with an easily replaceable shovel head, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a shovel with an easily replaceable shovel head, comprising a shovel head, a short handle connected to the right end of the shovel head by a first screw, a nut fitted onto the surface of the short handle, a tapered groove provided at the left end of the nut, evenly distributed openings on the surface of the short handle, a fixing ring fixed inside the openings, a ball bearing inside the fixing ring, the inner wall of the nut fitting against all the ball bearings, evenly distributed anti-slip grooves on the surface of the nut, a bushing fitted inside the short handle, evenly distributed grooves on the left end of the bushing's circumference, the ball bearings located inside the grooves, an mounting ring fixed inside the nut and on the bushing's circumference, two mounting rings connected by a spring fitted onto the bushing's circumference, a retaining spring fitted onto the bushing's circumference, the retaining spring located between the short handle and the left mounting ring, and the bushing and short handle being adjacent by ball bearings.
[0006] Furthermore, a long handle is fixed to the right end inside the bushing by a second screw, which facilitates user operation.
[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: This shovel with an easily replaceable shovel head has the following advantages:
[0008] By setting a nut, when the shovel head needs to be replaced, pulling the nut to the right moves the bushing to the right. The bushing moving to the right will compress the balls, causing them to move away from the groove on the bushing surface. In this way, the short handle can be separated from the bushing. After separation, the short handle with the new shovel head is inserted between the bushing and the nut. At this time, the conical groove on the left end of the nut will compress all the balls, causing them to enter the groove on the circumference of the bushing. In this way, the replacement of the new shovel head can be completed, which is extremely convenient. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0010] Figure 2 This is a schematic diagram of the spring structure of this utility model.
[0011] In the diagram: 1. Shovel head, 2. First screw, 3. Ball bearing, 4. Snap ring, 5. Nut, 6. Spring, 7. Long handle, 8. Short handle, 9. Bushing, 10. Second screw, 11. Retaining ring, 12. Mounting ring. Detailed Implementation
[0012] 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.
[0013] Please see Figure 1-2 This embodiment provides a technical solution: a shovel with an easily replaceable shovel head, including a shovel head 1. A short handle 8 is connected to the right end of the shovel head 1 via a first screw 2. A nut 5 is fitted onto the surface of the short handle 8. A tapered groove is provided at the left end of the nut 5. The surface of the short handle 8 has evenly distributed openings, and a fixing ring 11 is fixed inside each opening. Ball bearings 3 are disposed inside the fixing ring 11. The inner wall of the nut 5 is in contact with all the ball bearings 3. Evenly distributed anti-slip grooves are provided on the surface of the nut 5. A bushing 9 is fitted inside the short handle 8. The left end of the circumferential surface of bushing 9 has evenly distributed grooves. The ball bearing 3 is located inside the grooves. The nut 5 is fixed with the mounting ring 12 on the circumferential surface of bushing 9. The two mounting rings 12 are connected by a spring 6. The spring 6 is sleeved on the circumferential surface of bushing 9. A retaining spring 4 is sleeved on the circumferential surface of bushing 9. The retaining spring 4 is located between the short handle 8 and the mounting ring 12 on the left. The right end of the inside of bushing 9 is fixed with a long handle 7 by a second screw 10. The long handle 7 is set to facilitate user use. The ball bearing 3 is set to make bushing 9 and short handle 8 adjacent.
[0014] The working principle of the easy-to-replace shovel head provided by this utility model is as follows: By setting the nut 5, when the shovel head 1 needs to be replaced, the nut 55 can be pulled to the right. The nut 55 compresses the spring 6 to the right, and at the same time pulls the bushing 9 to the right. The bushing 9 to the right will squeeze the ball bearings 3, causing them to move away from the groove opened on the surface of the bushing 9. In this case, the short handle 8 can be separated from the bushing 9. After separation, the short handle 8 with the new shovel head 1 is inserted between the bushing 9 and the nut 5. During the insertion process, the conical groove set on the left end of the nut 5 will squeeze all the ball bearings 3 into the groove opened on the circumference of the bushing 9. In this case, the replacement of the new shovel head 1 can be completed, which is extremely convenient. After connection, the nut 5 is fixed by the action of the retaining spring 4 and the spring 6. After fixing, it can be used for convenience.
[0015] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A shovel with an easily replaceable shovel head, characterized in that: The device includes a shovel head (1), the right end of which is connected to a short handle (8) by a first screw (2). A nut (5) is fitted onto the surface of the short handle (8). A tapered groove is provided on the left end of the nut (5). The surface of the short handle (8) has evenly distributed openings. A fixing ring (11) is fixed inside the openings. Ball bearings (3) are provided inside the fixing ring (11). The inner wall of the nut (5) is in contact with all the ball bearings (3). The surface of the nut (5) has evenly distributed anti-slip grooves. The short handle (8) is fitted with a bushing (9). The left end of the circumferential surface of the bushing (9) has evenly distributed grooves. The ball (3) is located inside the grooves. The nut (5) is fixed with a mounting ring (12) on the circumferential surface of the bushing (9). The two mounting rings (12) are connected by a spring (6). The spring (6) is fitted on the circumferential surface of the bushing (9). A retaining ring (4) is fitted on the circumferential surface of the bushing (9). The retaining ring (4) is located between the short handle (8) and the mounting ring (12) on the left side.
2. The shovel with an easily replaceable shovel head according to claim 1, characterized in that: The right end inside the bushing (9) is fixed with a long handle (7) by a second screw (10).