A new type of car repair hammer
By designing a pull hammer head with a ring-shaped connecting block and a U-shaped connecting part, the problems of traditional pull hammer heads being limited in function, operation, and connection are solved, enabling diversified use of the tool and precise operation, thereby improving maintenance efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGZHOU GUDE NEW ENERGY APPLIANCE CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-26
AI Technical Summary
Existing automotive repair pull-out hammers have limited functionality, restricted operation, unstable connections, and insufficient precision, making it difficult to meet diverse repair needs and safety requirements.
A pull hammer head including an annular connecting block and a U-shaped connecting part was designed. The tool can be flexibly replaced and securely connected through bolt connection and clearance fit, and is equipped with a limiting structure to ensure operational accuracy.
It enables diversified use of tools, stable connections, and precise operation, improving maintenance efficiency and safety while reducing workload and risk.
Smart Images

Figure CN224274939U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile repair, and in particular to a novel automobile repair pull hammer head. Background Technology
[0002] In the field of automotive repair, pull hammers are commonly used tools, primarily for disassembling parts and correcting deformed components. However, existing automotive repair pull hammers have the following shortcomings:
[0003] Single function
[0004] Traditional pull hammers are usually a one-piece structure, with the hammer head and handle fixedly connected. This makes it difficult to quickly change to a suitable tool for different repair scenarios (such as disassembly of precision parts, repair of body dents, loose bolts, etc.), requiring the carrying of multiple special tools and increasing the burden on repair personnel.
[0005] Operational limitations
[0006] The interior space of a car is complex, and traditional pull hammers, due to their fixed structure, are difficult to operate at multiple angles in narrow spaces (such as corners of the engine compartment and gaps between chassis components), making it difficult to complete some repair work efficiently.
[0007] Safety hazards
[0008] The existing connection structure of pull hammers mostly relies on welding or simple threaded connections, which are prone to loosening and falling off under frequent hammering or strong operation, which may cause injury to maintenance personnel and damage automotive parts.
[0009] Insufficient precision
[0010] When adjusting or calibrating precision components, traditional pull hammers lack an effective angle locking mechanism, making it difficult to guarantee operational accuracy and easily leading to further damage to components or improper installation. Summary of the Invention
[0011] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.
[0012] To achieve the above objectives, the first aspect of this utility model proposes a novel automotive repair pull hammer head, comprising: an annular connecting block and a hand handle, the hand handle comprising a connecting part and a hand handle, the connecting part being U-shaped, the connecting part having a threaded connecting hole through it, the annular connecting block being connected to the connecting part by bolts, and the annular connecting block having a connecting hole on its side with a tool attached thereto.
[0013] As an improvement, a threaded limiting hole is provided on one side of the connecting part, and a limiting bolt is provided in the threaded limiting hole.
[0014] As an improvement, the number of connecting holes is not less than two and they are evenly distributed on the annular connecting block.
[0015] As an improvement, the inner hole of the annular connecting block is fitted with a clearance fit to the bolt.
[0016] Beneficial effects
[0017] Flexible structure and diverse functions: The new pull hammer head has multiple connection holes on the side of the ring connecting block, which can be connected to different types of implementation tools, such as hammers of different shapes and materials, clamps, etc., to achieve multiple uses in one device, meet various operation needs such as striking, stretching, and clamping, significantly expand the application range of the pull hammer head, and improve the versatility and practicality of the tool.
[0018] Stable and reliable connection: Bolts are used to connect the annular connecting block to the threaded connection hole of the U-shaped connecting part. The clearance fit between the inner hole of the annular connecting block and the bolt makes the connection structure more stable and can withstand greater external impact. During long-term use and high-intensity operation, it effectively prevents parts from loosening or falling off, ensuring the safety of operators and extending the service life of the hammer head.
[0019] Precise positioning and efficient operation: The threaded positioning holes and positioning bolts on the side of the connecting part form a positioning structure. When operating at a specific angle or position, the component can be fixed and limited by tightening the positioning bolts, ensuring the accuracy and stability of the operation process, reducing errors caused by component shaking, and improving work efficiency and quality. It is especially suitable for operation scenarios with high requirements for operational precision. Attached Figure Description
[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:
[0021] Figure 1 This is a schematic diagram of the structure of an automotive repair hammer head according to an embodiment of the present invention;
[0022] Figure 2 This is a schematic diagram of the annular connecting block structure of an automotive repair hammer head according to an embodiment of the present invention;
[0023] Figure 3 This is a schematic diagram of the hand handle structure of an automotive repair hammer head according to an embodiment of the present invention. Detailed Implementation
[0024] The embodiments of this utility model are described in detail below. Examples of these 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 this utility model, and should not be construed as limiting this utility model.
[0025] like Figure 1-3 The repairman took out the new type of car repair hammer head, which has an annular connecting block 1 with a diameter of 60mm and 4 M10 specification connecting holes 11 evenly distributed on the circumference.
[0026] Align the threaded connection hole 211 of the U-shaped connecting part 21 with the center hole of the annular connecting block 1, and insert the M12 high-strength bolt 4. Since the inner hole of the annular connecting block 1 and the bolt 4 are clearance fit, the annular connecting block 1 can still rotate flexibly relative to the connecting part 21 after the bolt 4 is tightened.
[0027] According to the repair needs, a rubber hammer (implementation tool 3) is installed on one of the connection holes 11 for non-destructive hammering during door deformation repair; a metal pry bar with anti-slip teeth (implementation tool 3) is installed on the other connection hole 11 to assist in disassembling rusted bolts.
[0028] II. Door Deformation Repair Procedure
[0029] The repairman holds the handpiece 22 and rotates the annular connecting block 1 to a suitable angle so that the rubber hammer head is aligned with the deformed part of the car door.
[0030] To ensure a stable and precise striking angle, the maintenance personnel tightened the limiting bolt 213 in the threaded limiting hole 212 on the side of the connecting part 21, so that the end of the limiting bolt 213 abutted against the bolt 4, thus fixing the angle of the annular connecting block 1.
[0031] By applying appropriate force with the handheld part 22, the deformed area of the car door is repeatedly struck with a rubber hammer. Due to the material properties of the rubber hammer, damage to the car paint is avoided while repairing the car door. During the striking process, thanks to the limiting structure, the annular connecting block 1 maintains a fixed angle, eliminating the need for frequent adjustments by the repair personnel. The operation is efficient and precise, quickly restoring the car door to its original shape.
[0032] III. Engine Bolt Removal Procedure
[0033] After the door repair was completed, the repairman loosened the limiting bolt 213, rotated the annular connecting block 1, adjusted the metal pry bar with anti-slip teeth to a position that was easy to operate, and then tightened the limiting bolt 213 again to fix the angle.
[0034] Due to the narrow space in the engine compartment, traditional tools are difficult to use. However, thanks to the flexible angle adjustment design of the U-shaped connecting part 21 and the annular connecting block 1, maintenance personnel can easily insert the metal pry bar into the narrow space to hold the rusted bolts.
[0035] By utilizing the anti-slip teeth on the metal pry bar to increase friction, and applying a large torque through the handheld part 22, the rusted bolt was successfully loosened and removed. Throughout the disassembly process, the stable connection structure between the annular connecting block 1 and the connecting part 21, as well as the double protection of the clearance fit and the limiting bolt 213, ensured that the hammer head remained stable even under large external forces, without loosening or falling off, thus ensuring the safe and smooth progress of the maintenance work.
[0036] Through practical application in this automotive repair, the new automotive repair pull hammer head, with its replaceable tools, flexible angle adjustment, stable connection, and precise positioning, efficiently completed the door repair and bolt removal work. Compared with the traditional pull hammer head, it significantly improved the efficiency and quality of automotive repair, while reducing the workload and safety risks for repair personnel.
[0037] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0039] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. A new type of automobile repairing puller head, characterized in that, include: It includes an annular connecting block (1) and a hand handle (2). The hand handle (2) includes a connecting part (21) and a hand handle (22). The connecting part (21) is U-shaped and has a threaded connecting hole (211) through it. The annular connecting block (1) is connected to the connecting part (21) by a bolt (4). The side of the annular connecting block (1) has a connecting hole (11) and an implementation tool (3) is connected to the connecting hole (11).
2. A new type of automobile repairing puller head according to claim 1, characterized in that, One side of the connecting part (21) is provided with a threaded limiting hole (212), and a limiting bolt (213) is provided in the threaded limiting hole (212).
3. The novel automotive repair hammer head according to claim 1, characterized in that, The number of connecting holes (11) is not less than two and they are evenly distributed on the annular connecting block (1).
4. A novel automotive repair hammer head according to claim 1, characterized in that, The inner hole of the annular connecting block (1) is clearance-fitted with the bolt (4).