Multi-functional elbow pneumatic assembly tool combination bit holder

Abstract

The utility model discloses a multifunctional elbow pneumatic assembly tool combined tool bit seat relates to elbow pneumatic assembly tool technical field, including the assembly seat, the upper end of assembly seat is provided with the assembly groove, the inner surface middle part of assembly groove is fixedly installed with the locating post, the inside plug connection of assembly groove is provided with the assembly cylinder, the lower end middle part of assembly cylinder is provided with the slot, the inner surface left and right sides of slot all are provided with the locating slot, the left and right sides surface of locating post all is provided with locking mechanism. Compared with the prior art, the multifunctional elbow pneumatic assembly tool combined tool bit seat is convenient and fast to disassemble and replace the end, can replace the end according to the model of different bolts, does not need to disassemble the end of tool, replaces the whole tool bit seat uniformly, greatly improves the flexibility and convenience of use, and simple installation mode can also guarantee the stability in use.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic assembly tools for elbows, specifically a multifunctional pneumatic assembly tool combination cutter head holder for elbows. Background Technology

[0002] The bit holder of a pneumatic screwdriver is often called a screwdriver bit; it refers to the replaceable tool head used on electric or pneumatic screwdrivers (air screwdrivers and power screwdrivers) for tightening or loosening screws. They are common fastening tools widely used in various repair and assembly work.

[0003] The existing multi-functional pneumatic assembly tool for elbows uses a combination cutter head holder, where the cutter head holder and the end for tightening the adapter bolt are integrated. The installation of the cutter head holder requires removing the top cover of the pneumatic screwdriver, connecting the cutter head holder end to the internal structure, and then replacing the cover to complete the installation. This assembly method makes it cumbersome to replace the entire cutter head holder when working with different bolt types, resulting in inconvenience and affecting efficiency.

[0004] Therefore, in view of this, we studied and improved the existing structure to propose a multi-functional elbow pneumatic assembly tool combination cutter head holder. Utility Model Content

[0005] The purpose of this utility model is to provide a multifunctional pneumatic assembly tool combination cutter head holder for elbows, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-functional pneumatic assembly tool combination cutter head holder, including an assembly base, an assembly groove at the upper end of the assembly base, a positioning post fixedly installed in the middle of the inner surface of the assembly groove, an assembly cylinder inserted into the assembly groove, a slot at the middle of the lower end of the assembly cylinder, positioning grooves on both the left and right sides of the inner surface of the slot, and locking mechanisms on both the left and right sides of the positioning post.

[0007] Preferably, the positioning post occupies the central space of the assembly groove, making the assembly groove an annular groove. The slot at the bottom of the assembly cylinder can be matched with the size of the positioning post, and the edge of the assembly cylinder can also be adapted to the annular groove space formed by the assembly groove.

[0008] Preferably, the locking mechanism includes a gathering cavity opened on both the left and right sides of the positioning post surface, a spring fixedly installed on the inner surface of each gathering cavity, and a locking block fixedly installed on the end of each spring near the opening of the gathering cavity.

[0009] Preferably, the opposite end of the locking block connected to the spring is located inside the assembly groove, and both the upper and lower surfaces of the locking block located inside the assembly groove are set as inclined surfaces.

[0010] Preferably, the locking block and the spring connection end slide inside the convergence cavity, and the upper and lower surfaces of the locking block at one end inside the convergence cavity are set as planes.

[0011] Preferably, the position of the locking block on the positioning post matches the position of the positioning groove inside the slot, and the depth of the positioning groove is greater than the length of the inclined part of the locking block.

[0012] Preferably, the upper end of the assembly cylinder is fixedly connected to an end head, which is a turning rod that matches the shape of the bolt.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes an assembly groove, a positioning post, an assembly cylinder, a slot, and a locking mechanism. The assembly cylinder is inserted into the assembly groove, at which point the positioning post is inserted into the slot. The bottom sidewall of the assembly cylinder uses an inclined surface to push the locking block into the convergence cavity, compressing the spring. When the assembly cylinder is fully inserted into the assembly groove, the locking block aligns with the positioning groove. Under the elastic force of the spring, the inclined portion of the locking block is pushed into the positioning groove. At this point, the positioning groove still has some redundant space. The spring's thrust can resist the weight of the end and the assembly cylinder, ensuring that the assembly cylinder, without external force, will not rely on its own weight to cause the locking block to contract and compress the spring. This ensures the installation of the end. Disassembly is only required manually by pulling the end; the applied force pushes the locking block from below using the inclined surface. Retraction, or disassembly, occurs during installation and rotation. The centrifugal force generated during rotation pulls the spring to extend further, causing the locking block to insert further into the positioning groove. The upper and lower planes of the locking block then partially enter the positioning groove, ensuring that the upper and lower edges of the positioning groove are aligned with the plane of the locking block during use. The plane only applies vertical force to the locking block, preventing lateral retraction and preventing the assembly cylinder and end cap from detaching during installation and use. This ensures stability during operation. The end cap is extremely easy and quick to disassemble and replace, allowing for independent replacement based on different bolt types without disassembling the tool end or replacing the entire cutter head. This greatly improves flexibility and convenience, and the simple installation method also guarantees stability during use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the disassembled structure of the end cap and assembly base of this utility model;

[0017] Figure 3This is a cross-sectional view of the assembly base and a cross-sectional structural diagram of the assembly cylinder of this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Assembly base; 2. Assembly slot; 3. Positioning post; 4. Assembly cylinder; 5. Slot; 6. Positioning slot; 7. Locking mechanism; 701. Retraction cavity; 702. Spring; 703. Locking block; 8. End. Detailed Implementation

[0020] 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.

[0021] like Figures 1-4 As shown, the multi-functional elbow pneumatic assembly tool combination cutter head holder includes an assembly base 1. The upper end of the assembly base 1 has an assembly groove 2. A positioning post 3 is fixedly installed in the middle of the inner surface of the assembly groove 2. An assembly cylinder 4 is inserted into the assembly groove 2. A slot 5 is opened in the middle of the lower end of the assembly cylinder 4. Positioning grooves 6 are opened on both the left and right sides of the inner surface of the slot 5. Locking mechanisms 7 are provided on both the left and right sides of the positioning post 3. An end head 8 is fixedly connected to the upper end of the assembly cylinder 4. The end head 8 is a turning rod that matches the shape of the bolt. The assembly cylinders 4 connected to different end heads 8 are the same.

[0022] The positioning post 3 occupies the central space of the assembly groove 2, making the assembly groove 2 form an annular groove. The slot 5 at the bottom of the assembly cylinder 4 can match the size of the positioning post 3, and the edge of the assembly cylinder 4 can also fit into the annular groove space formed by the assembly groove 2.

[0023] By adopting the above technical solution, the assembly cylinder 4 can be inserted into the assembly slot 2, and the positioning post 3 can be inserted into the slot 5, so that the assembly cylinder 4, the assembly slot 2, and the positioning post 3 are nested and inserted into each other.

[0024] Furthermore, the locking mechanism 7 includes a gathering cavity 701 opened on both the left and right sides of the surface of the positioning post 3. A spring 702 is fixedly installed on the inner surface of the gathering cavity 701. A locking block 703 is fixedly installed on the end of the spring 702 near the opening of the gathering cavity 701.

[0025] The opposite end of the locking block 703 connected to the spring 702 is located inside the assembly groove 2, and the upper and lower surfaces of the locking block 703 located inside the assembly groove 2 are both set as inclined surfaces; the position of the locking block 703 located on the positioning post 3 matches the opening position of the positioning groove 6 inside the slot 5, and the opening depth of the positioning groove 6 is greater than the length of the inclined part of the locking block 703.

[0026] By adopting the above technical solution, the bottom side wall of the assembly cylinder 4 will use the inclined surface to push the locking block 703 to retract into the gathering cavity 701, and cause the spring 702 to be compressed. When the assembly cylinder 4 is fully inserted into the assembly groove 2, the locking block 703 is aligned with the positioning groove 6. Under the elastic force of the spring 702 itself, the inclined part of the locking block 703 is pushed into the positioning groove 6, thereby connecting the assembly cylinder 4 with the assembly base 1.

[0027] The assembly base 1 rotates as a whole, and the entire assembly cylinder 4 is rotated by the insertion of the locking block 703 into the positioning groove 6.

[0028] Since the depth of the positioning groove 6 is greater than the length of the inclined part of the locking block 703, under the normal elastic restoring force of the spring 702, the locking block 703 will not be fully inserted into the positioning groove 6. During normal installation, only the upper and lower inclined parts of the locking block 703 are located in the positioning groove 6.

[0029] The thrust of spring 702 can resist the weight of end 8 plus assembly cylinder 4, so that the assembly cylinder 4 will not rely on its own weight to cause locking block 703 to contract and squeeze spring 702 without the influence of external force, thereby ensuring the installation of assembly cylinder 4.

[0030] During disassembly, only manual force is required to pull end 8. The applied force will push the locking block 703 to retract from below using the inclined surface, thus enabling disassembly.

[0031] Furthermore, the locking block 703 and the spring 702 are connected at the end of the locking block 703 and slide inside the gathering cavity 701, and the upper and lower surfaces of the locking block 703 at one end inside the gathering cavity 701 are set as planes.

[0032] By adopting the above technical solution, after installation and during rotation, the centrifugal force generated by rotation will pull the spring 702 to extend further. At this time, the locking block 703 will be further inserted into the positioning groove 6. The upper and lower plane parts of the locking block 703 will enter the positioning groove 6 in part, so that when in use, the upper and lower edges of the positioning groove 6 are opposite to the plane parts of the locking block 703. The plane will only apply vertical force to the locking block 703, and will not cause the locking block 703 to retract laterally, so that the assembly cylinder 4 and the end 8 will not fall off during installation and use.

[0033] Working Principle: When using this multi-functional elbow pneumatic assembly tool combination cutter head holder, firstly, the assembly base 1 is assembled with the pneumatic tool. After assembly, select the end head 8 that matches the current bolt model and insert the end head 8 into the assembly slot 2 through the assembly cylinder 4. At this time, the positioning pin 3 will be inserted into the slot 5. The bottom side wall of the assembly cylinder 4 will use the inclined surface to push the locking block 703 to retract into the converging cavity 701, and compress the spring 702. When the assembly cylinder 4 is fully inserted into the assembly slot 2, the locking block 703 is aligned with the positioning slot 6. Under the elastic force of the spring 702, the inclined part of the locking block 703 is pushed into the positioning slot 6. At this time, the positioning slot 6 still has some redundant space. The thrust of the spring 702 can resist the weight of the end head 8 plus the assembly cylinder 4, so that the assembly cylinder 4 will not rely on its own weight to retract and squeeze the spring 702 without the influence of external force, thus ensuring the installation of the end head 8. After installation, during rotation and use, the rotation generates a freewheeling force. The force of the spring 702 will further extend the locking block 703, which will then be further inserted into the positioning groove 6. At this time, the upper and lower planes of the locking block 703 will enter the positioning groove 6, so that during use, the upper and lower edges of the positioning groove 6 are opposite to the plane of the locking block 703. The plane will only apply vertical force to the locking block 703, and will not cause the locking block 703 to retract laterally. This ensures that the assembly cylinder 4 and the end head 8 will not fall off during installation and use, thus ensuring stability during use. After use, the tension of the spring 702 will cause the plane of the locking block 703 to retract into the retraction cavity 701. At this time, the locking block 703 is located inside the positioning groove 6 as a completely inclined part. During disassembly, only manual force is needed to pull the end head 8. The applied force can push the locking block 703 to retract from below using the inclined surface, thus disassembling the end head 8. This is the working principle of the multi-functional elbow pneumatic assembly tool combination cutter head seat.

Claims

1. A multi-functional pneumatic assembly tool for elbows, comprising an assembly base (1), characterized in that, The upper end of the assembly base (1) is provided with an assembly groove (2), and a positioning post (3) is fixedly installed in the middle of the inner surface of the assembly groove (2). An assembly cylinder (4) is inserted into the assembly groove (2), and a slot (5) is provided in the middle of the lower end of the assembly cylinder (4). Positioning grooves (6) are provided on both the left and right sides of the inner surface of the slot (5), and locking mechanisms (7) are provided on both the left and right sides of the positioning post (3).

2. The multifunctional elbow pneumatic assembly tool combination cutter head holder according to claim 1, characterized in that, The positioning post (3) occupies the central space of the assembly groove (2), making the assembly groove (2) form an annular groove. The slot (5) at the bottom of the assembly cylinder (4) can match the size of the positioning post (3), and the edge of the assembly cylinder (4) can also fit the annular groove space formed by the assembly groove (2).

3. The multifunctional elbow pneumatic assembly tool combination cutter head holder according to claim 1, characterized in that, The locking mechanism (7) includes a gathering cavity (701) on both the left and right sides of the surface of the positioning post (3). A spring (702) is fixedly installed on the inner surface of the gathering cavity (701). A locking block (703) is fixedly installed on the end of the spring (702) near the opening of the gathering cavity (701).

4. The multifunctional elbow pneumatic assembly tool combination cutter head holder according to claim 3, characterized in that, The opposite end of the locking block (703) connected to the spring (702) is located inside the assembly groove (2), and the upper and lower surfaces of the locking block (703) located inside the assembly groove (2) are both set as inclined surfaces.

5. The multifunctional elbow pneumatic assembly tool combination cutter head holder according to claim 3, characterized in that, The locking block (703) and the spring (702) are connected at the end of the locking block (703) and slide inside the gathering cavity (701), and the upper and lower surfaces of the locking block (703) at one end inside the gathering cavity (701) are set as planes.

6. The multifunctional elbow pneumatic assembly tool combination cutter head holder according to claim 3, characterized in that, The position of the locking block (703) on the positioning post (3) matches the position of the positioning groove (6) inside the slot (5), and the depth of the positioning groove (6) is greater than the length of the inclined part of the locking block (703).

7. The multifunctional elbow pneumatic assembly tool combination cutter head holder according to claim 1, characterized in that, The upper end of the assembly cylinder (4) is fixedly connected to an end head (8), which is a turning rod that matches the shape of the bolt.

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