A ratchet handle for easy access to bits

Abstract

This utility model discloses a ratchet handle for convenient bit storage and retrieval, aiming to provide a ratchet handle that improves the convenience and efficiency of bit storage and retrieval. It includes a handle housing, an output shaft within the housing's inner cavity, a chuck detachably connected to one end of the output shaft, the chuck being connected to one end of the handle housing, and a limit ring detachably connected to the other end of the output shaft; a bit sleeve sleeved to the output shaft, with several bit holders fitted over the sleeve, and a limit ring connected to the inner wall of the sleeve; a feed spring sleeved to the output shaft; a tail cap assembly rotatably connected to the handle housing, and engaging with one end of the bit sleeve; and a buffer seat engaging with the other end of the bit sleeve, abutting against the inner cavity of the handle housing. The advantages of this utility model are: enabling rapid storage and convenient replacement of multiple bits using a ratchet handle; saving time and effort with high operational efficiency.

Description

Technical Field

[0001] This utility model relates to the field of ratchet handle technology, and in particular to a ratchet handle for convenient access to bits. Background Technology

[0002] Traditional screwdrivers are usually one-piece structures with a single function. When screwing in screws of different sizes, multiple screwdrivers with different function bits are required, which is inconvenient for workers to carry and use, and also costly. To solve the above problems, a bit storage space needs to be designed in the handle to store multiple bits for use and to take them out when needed.

[0003] Chinese Patent Grant Announcement No.: CN 215037003 U, Grant Announcement Date: December 7, 2021. This utility model relates to a ratchet handle capable of accommodating screwdriver bits, and pertains to the field of screwdriver technology. It includes a handle body with a ratchet mechanism and a connecting rod mounted on the ratchet mechanism. The handle body has an internal receiving cavity, and a cover is located at the end of the receiving cavity away from the ratchet mechanism. A knob is rotatably connected to the cover, and a support post is mounted on the knob. Several tool holders are hinged to the support post. A pick-up and drop-off port communicating with the receiving cavity is located on the side wall of the handle body. The drawback of this technical solution is that the screwdriver bits need to be inspected and retrieved one by one, making storage and retrieval inconvenient, thus reducing the efficiency and convenience of using screwdriver bits.

[0004] In summary, ratchet handles have drawbacks such as inconvenient bit access and reduced efficiency. Utility Model Content

[0005] The present invention aims to overcome the shortcomings of existing ratchet handles, such as inconvenience in bit access and reduced efficiency, and provides a ratchet handle that improves the convenience of bit access and increases efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A ratchet handle for easy access to bits, comprising: The handle housing has an output shaft inside its cavity. One end of the output shaft is detachably connected to a chuck, which is connected to one end of the handle housing. The other end of the output shaft is detachably connected to a limit ring. A bit sleeve is sleeved with an output shaft. Several bit holders are sleeved on the outer side of the bit sleeve. Several bit holders are provided with several bit grooves. A limit ring is connected to the inner wall of the bit sleeve. The limit ring is slidably connected to the output shaft and movably connected to a limit convex ring. The discharge spring is sleeved with the output shaft. One end of the discharge spring abuts against the clamp, and the other end of the discharge spring abuts against the limit ring. The tail cap assembly is rotatably connected to the handle housing and is snapped into one end of the bit socket. The buffer seat engages with the other end of the bit sleeve and abuts against the inner cavity of the handle housing.

[0007] An output shaft is located on the central axis of the inner cavity of the handle housing. One end of the conveying shaft is fixed by a clamp connected to the handle housing. A bit sleeve is fitted onto the output shaft. The bit sleeve can reciprocate on the output shaft through its connection with the end cap assembly, thereby driving the bit holder to reciprocate and causing the bits in several bit slots to move synchronously. A discharge spring is fitted onto the output shaft. The end cap assembly unlocks and locks the bit sleeve by a rotating connection. After unlocking, the bit sleeve, which can move freely on the output shaft, releases the compressed discharge spring and pops out. The bit sleeve then automatically pops out of the inner cavity of the handle housing along the output shaft. The feed spring pushes the limiting ring to the limiting protrusion, where it is stopped, thus limiting the operation. This ensures that all bits placed in the bit holder are fed out of the inner cavity of the handle housing, allowing for convenient and quick storage or use of bits. Retracting the bit sleeve by pressing the tail cap assembly in the opposite direction recompresses the feed spring, and rotating it relocks the bit sleeve. The buffer seat, fitted onto the bit sleeve and moving outwards together, cushions the ejection speed, preventing the bits from falling out due to inertia and protecting the user from injury. It also provides auxiliary limiting for the bits and bit sleeve during retraction. This design achieves the effects of rapid storage and convenient use of multiple bits with the ratchet handle, saving time and effort, high operational efficiency, and efficient component assembly for stable operation.

[0008] Preferably, the bit slot is used to insert bit pieces, and the bit holder has a discharge side hole that communicates with the bit slot. The bit pieces are connected to anti-slip protrusions that are positioned within the discharge side hole. Different types of bit pieces are inserted into the bit slot for storage, and the discharge side hole is a side opening structure for each bit slot. The anti-slip protrusions at the opening allow for quick removal and insertion of the bit pieces into the bit slot, further improving the convenience of bit storage and use.

[0009] Preferably, the tail cap assembly includes an outer retaining ring, a limit strip connected to the inner wall of the handle housing at the tail end, and a limit threaded strip adapted to the limit strip connected to the inner wall of the outer retaining ring. The protruding limit threaded strip on the inner wall of the outer retaining ring allows it to be screwed into the limit strip during rotation, enabling the outer retaining ring to be quickly attached to the handle housing and quickly unscrewed by reverse rotation. This simplifies the structure and improves the efficiency of locking and unlocking the bit for storage and retrieval.

[0010] Preferably, the tail cap assembly includes a retaining ring 1, which is connected to the inner bottom of the outer fixing ring. The central axis of the retaining ring 1 coincides with that of the outer fixing ring. A connecting protrusion is connected to the surface of the bit sleeve, and the retaining ring 1 engages with the connecting protrusion. The retaining ring 1 is integrated with the center of the inner bottom of the outer fixing ring, allowing it to overcome stress and engage with the connecting protrusion when inserted into one end of the bit sleeve. This connects the tail cap assembly and the bit sleeve as a whole, preventing the tail cap assembly from detaching from the bit sleeve during use and eliminating the need for repeated docking. This achieves the effects of preventing accessory loss, simplifying operation, and improving the efficiency of locking and unlocking.

[0011] Preferably, the connecting ring surface is provided with a guide bevel, and the end of the bit sleeve is provided with several locking grooves. The outer surface of the connecting ring is inclined so that after the retaining ring is inserted, it contacts the guide bevel first and is guided along the guide bevel to the locking surface. The locking grooves are evenly distributed at the end of the bit sleeve. The locking grooves allow the bit sleeve to deform elastically after the retaining ring enters, preventing structural breakage. Simultaneously, the retaining ring's reset deformation after insertion makes the locking structure more secure, preventing the end cap assembly from detaching from the bit sleeve during use. This achieves the effect of improving the connection efficiency during assembly of the bit sleeve and the end cap assembly, and the connection strength after assembly.

[0012] Preferably, the output shaft has a mounting screw hole at its end, and a mounting screw is inserted into the limiting ring. The mounting screw is threaded into the mounting screw hole. The output shaft is bolted to the limiting ring with the mounting screw through the mounting screw hole, allowing the limiting ring to be quickly positioned at the end of the output shaft and providing a limiting effect. This connection method also facilitates the assembly of the bit socket. This improves the stability of assembly and disassembly / maintenance of components.

[0013] Preferably, the handle housing has a limiting boss, which is a protruding structure on the inner wall of the handle housing. The buffer seat abuts against the limiting boss. A retaining ring is connected to the outer side of the bit sleeve. One side of the buffer seat has a recessed groove, and the retaining ring engages with the recessed groove. The bit sleeve is connected to a limiting rod, which abuts against the other side of the buffer seat. The inner wall of the handle housing limits the buffer seat through the inwardly protruding limiting boss structure. The central opening of the buffer seat is for fitting onto the bit sleeve. The recessed groove is an indented groove on the inner wall of the central opening, allowing the retaining ring to enter the recessed groove and be positioned under stress. The limiting rod prevents the buffer seat from sliding on the bit sleeve. This improves the assembly efficiency and stability of the buffer seat.

[0014] Preferably, the outer surface of the buffer seat is in contact with the inner wall of the handle housing, and the outer surface of the buffer seat is provided with several anti-friction grooves. The buffer seat reduces its overall weight by creating several weight-reducing holes. Simultaneously, the outer surface of the buffer seat is in contact with the handle housing to cooperate with the limiting ring to maintain the horizontal movement of the bit sleeve. The evenly distributed anti-friction grooves on the outer surface prevent the surface of the buffer seat from completely contacting the inner wall of the handle housing, thus preventing excessive friction from overcoming the spring force and causing the bit sleeve to fail to eject or become stuck. It also reduces friction during insertion and retraction, preventing difficult retraction. This achieves the effect of ensuring that the bit's insertion and withdrawal maintain a suitable speed and preventing strenuous effort and jamming.

[0015] Preferably, the handle housing is fitted with an anti-slip sleeve, and both the anti-slip sleeve and the handle housing have anti-slip grooves. The anti-slip sleeve is made of rubber material, and the recessed anti-slip grooves on its surface increase the friction when the handle is gripped, thereby improving the operational stability of the end cap assembly. This ultimately improves the operating efficiency of the screwdriver bit.

[0016] The beneficial effects of this utility model are: it enables rapid storage and convenient replacement of multiple bits on the ratchet handle; it saves time and effort and has high operating efficiency; the components are assembled efficiently and facilitate stable operation; it simplifies the structure and improves the efficiency of locking and unlocking bits; it improves the efficiency of stable assembly and disassembly maintenance between accessories; and it ensures that the bits enter and exit at an appropriate speed, preventing laborious and jamming phenomena. Attached Figure Description

[0017] Figure 1 This is a perspective view of the utility model (closed state); Figure 2 yes Figure 1 Exploded view; Figure 3 yes Figure 1 A sectional view; Figure 4 This is a cross-sectional view showing the connection between the tail cap assembly, the bit sleeve, and the handle housing; Figure 5 This is a cross-sectional view of the connection between the buffer seat, the output shaft, and the bit sleeve; Figure 6 This is a schematic diagram of the end structure of the bit sleeve; Figure 7 yes Figure 3 The open state diagram.

[0018] In the diagram: 1. Handle housing, 2. Output shaft, 3. Chuck, 4. Limiting ring, 5. Bit sleeve, 6. Bit holder, 7. Bit groove, 8. Limiting ring, 9. Discharge spring, 10. Tail cap assembly, 11. Buffer seat, 12. Bit component, 13. Discharge side hole, 14. Anti-slip protrusion, 15. Outer fixing ring, 16. Limiting strip, 17. Limiting threaded strip, 18. Snap ring one, 19. Connecting ring, 20. Guide slope, 21. Locking groove, 22. Mounting screw hole one, 23. Mounting screw one, 24. Limiting boss, 25. Snap ring two, 26. Recessed groove, 27. Anti-friction groove, 28. Anti-slip sleeve, 29. Anti-slip groove one, 30. Weight reduction hole, 31. Anti-slip groove two, 32. Limiting rod. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of components illustrated in these embodiments do not limit the scope of this application. For ease of illustration, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, an element described as being “below” other elements or features would be positioned “up” other elements or features. Thus, the exemplary term “down” can include both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. It should also be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale. Techniques, processes, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, processes, and equipment should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.

[0022] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0023] Example 1: like Figures 1-3 As shown, a ratchet handle for convenient access to screwdriver bits includes a handle housing 1. An output shaft 2 is located within the inner cavity of the handle housing 1. A chuck 3 is detachably connected to one end of the output shaft 2 and is connected to one end of the handle housing 1. A limit ring 4 is detachably connected to the other end of the output shaft 2. A screwdriver bit sleeve 5 is sleeved with the output shaft 2. A plurality of screwdriver bit holders 6 are sleeved around the screwdriver bit sleeve 5. Each screwdriver bit holder 6 has a plurality of screwdriver bit grooves 7. A limit ring 8 is connected to the inner wall of the screwdriver bit sleeve 5. The output shaft 2 is slidably connected, and the limiting ring 8 is movably connected to the limiting protruding ring 4; the discharge spring 9 is sleeved with the output shaft 2, one end of the discharge spring 9 abuts against the chuck 3, and the other end of the discharge spring 9 abuts against the limiting ring 8; the tail cap assembly 10 is rotatably connected to the handle housing 1, and the tail cap assembly 10 is snapped into one end of the bit sleeve 5; the buffer seat 11 is snapped into the other end of the bit sleeve 5, and the buffer seat 11 abuts against the inner cavity of the handle housing 1.

[0024] like Figure 2 , 3 As shown, a bit slot 7 is connected to a bit piece 12, and a bit holder 6 is provided with a discharge side hole 13. The discharge insertion hole is connected to the bit slot 7, and the bit piece 12 is connected to an anti-slip protrusion 14, which is placed inside the discharge side hole 13.

[0025] like Figures 2-5 As shown, the tail cap assembly 10 includes an outer retaining ring 15, a limiting strip 16 is connected to the inner wall of the tail end of the handle housing 1, and a limiting threaded strip 17 adapted to the limiting strip 16 is connected to the inner wall of the outer retaining ring 15. The tail cap assembly 10 includes a retaining ring 18, which is connected to the inner bottom of the outer retaining ring 15. The central axis of the retaining ring 18 coincides with that of the outer retaining ring 15. A connecting protrusion ring 19 is connected to the surface of the bit sleeve 5, and the retaining ring 18 engages with the connecting protrusion ring 19.

[0026] like Figure 6 As shown, the surface of the connecting convex ring 19 is provided with a guide slope 20, and the port of the bit sleeve 5 is provided with several locking grooves 21.

[0027] like Figure 2 , 3 As shown, the end of the output shaft 2 is provided with a mounting screw hole 22, and the limiting ring 4 is inserted with a mounting screw 23, which is threadedly connected to the mounting screw hole 22.

[0028] like Figure 3 , 5 As shown, the handle housing 1 is provided with a limiting boss 24, which is a protruding structure on the inner wall of the handle housing 1. The buffer seat 11 abuts against the limiting boss 24. The outer side of the bit sleeve 5 is connected with a retaining ring 25. One side of the buffer seat 11 is provided with a recessed groove 26. The retaining ring 25 engages with the recessed groove 26. The bit sleeve 5 is connected with several limiting rods 32, which abut against the other side of the buffer seat 11.

[0029] like Figure 2 , 3 As shown, the outer side of the buffer seat 11 is in contact with the inner wall of the handle housing 1, and the outer side of the buffer seat 11 is provided with several anti-friction grooves 27.

[0030] like Figure 1 As shown, the handle housing 1 is covered with an anti-slip sleeve 28, and both the anti-slip sleeve 28 and the handle housing 1 are provided with anti-slip grooves 29.

[0031] like Figures 1-7 As shown: The connecting convex ring 19 and the bit sleeve 5 are an integral structure. The guide slope 20 is connected to the surface of the bit sleeve 5, so that the retaining ring 18 can be quickly inserted into the connecting convex ring 19 along the guide slope 20.

[0032] The end face of the buffer seat 11 is provided with several weight-reducing holes 30 to reduce the overall weight of the ratchet handle and improve the user experience.

[0033] The surface of the outer fixing ring 15 is provided with several anti-slip grooves 31 to prevent the tail cap assembly 10 from slipping and becoming unscrewable when rotating; the limiting threaded strip 17 and the limiting strip 16 form an internal and external thread structure to fix the tail cap assembly 10 to the tail end of the handle housing 1 by screwing.

[0034] The chuck 3 is an existing ratchet handle chuck structure with a ratchet mechanism and is fixedly connected to the handle housing 1. The output shaft 2 is screwed onto the chuck 3 via a threaded connection.

[0035] The ejector spring 9 is an existing spring structure. The length of the ejector spring 9 in its relaxed state is longer than the length of the output shaft 2, ensuring that the ejector spring 9 has sufficient elasticity to push the bit sleeve 5 out of the handle housing 1.

[0036] Several slots are opened on the other end face of the bit sleeve 5 so that the bit sleeve 5 has the same effect as the locking groove 21 when connected to the buffer seat 11, so as to improve the assembly stability between the parts.

[0037] In use: Rotate the outer retaining ring 15 of the tail cap assembly 10 to disengage the limiting threaded strip 17 from the limiting strip 16, thereby unlocking the bit sleeve 5. Then, under the elastic force of the released discharge spring 9, the limiting ring 8 is pushed, causing the bit sleeve 5 to move along the output shaft 2 outwards from the handle housing 1, exposing all the bit pieces 12 on the bit holder 6 (e.g., Figure 7 As shown, the bit 12 can be operated. After the bit 12 is taken out or stored, the tail cap assembly 10 is pressed back in the opposite direction, so that the discharge spring 9 is pressed again by the limiting ring 8. After reaching the limit, the outer fixing ring 15 is rotated to screw the limiting threaded strip 17 into the limiting strip 16, thus completing the convenient storage and retrieval of the bit 12 on the ratchet handle.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A ratchet handle for convenient access to screwdriver bits, characterized in that, include The handle housing (1) has an output shaft (2) in its inner cavity. One end of the output shaft (2) is detachably connected to a chuck (3). The chuck (3) is connected to one end of the handle housing (1), and the other end of the output shaft (2) is detachably connected to a limit ring (4). A bit sleeve (5) is sleeved with an output shaft (2). A plurality of bit seats (6) are sleeved on the outer side of the bit sleeve (5). A plurality of bit grooves (7) are provided on the bit seats (6). A limiting ring (8) is connected to the inner wall of the bit sleeve (5). The limiting ring (8) is slidably connected to the output shaft (2). The limiting ring (8) is movably connected to the limiting protrusion ring (4). The discharge spring (9) is sleeved with the output shaft (2), one end of the discharge spring (9) abuts against the clamp (3), and the other end of the discharge spring (9) abuts against the limiting ring (8); Tail cap assembly (10), the tail cap assembly (10) is rotatably connected to the handle housing (1), and the tail cap assembly (10) is snapped into one end of the bit sleeve (5); The buffer seat (11) is engaged with the other end of the bit sleeve (5) and abuts against the inner cavity of the handle housing (1).

2. The ratchet handle for convenient access to bit storage according to claim 1, characterized in that, The bit slot (7) is connected to a bit piece (12), the bit holder (6) is provided with a discharge side hole (13), the discharge side hole (13) is connected to the bit slot (7), the bit piece (12) is connected to an anti-slip protrusion (14), and the anti-slip protrusion (14) is placed in the discharge side hole (13).

3. The ratchet handle for convenient access to bit storage according to claim 1, characterized in that, The tail cap assembly (10) includes an outer fixing ring (15), and a limiting strip (16) is connected to the inner wall of the tail end of the handle housing (1). The inner wall of the outer fixing ring (15) is connected to a limiting threaded strip (17) that is adapted to the limiting strip (16).

4. A ratchet handle for convenient access to bit storage according to claim 3, characterized in that, The tail cap assembly (10) includes a retaining ring (18), which is connected to the inner bottom of the outer fixing ring (15). The central axis of the retaining ring (18) coincides with that of the outer fixing ring (15). A connecting protrusion (19) is connected to the surface of the bit sleeve (5), and the retaining ring (18) engages with the connecting protrusion (19).

5. A ratchet handle for convenient access to bit storage according to claim 4, characterized in that, The surface of the connecting protrusion (19) is provided with a guide slope (20), and the port of the bit sleeve (5) is provided with several locking grooves (21).

6. A ratchet handle for convenient access to bit storage according to claim 1, characterized in that, The output shaft (2) has a mounting screw hole (22) at its end, and the limiting ring (4) is connected to a mounting screw (23), which is threadedly connected to the mounting screw hole (22).

7. A ratchet handle for convenient access to bit storage according to claim 1, characterized in that, The handle housing (1) is provided with a limiting boss (24), which is a protruding structure on the inner wall of the handle housing (1). The buffer seat (11) abuts against the limiting boss (24). The outer side of the bit sleeve (5) is connected with a retaining ring (25). One side of the buffer seat (11) is provided with a recessed groove (26). The retaining ring (25) engages with the recessed groove (26). The bit sleeve (5) is connected with a limiting rod (32), which abuts against the other side of the buffer seat (11).

8. A ratchet handle for convenient access to bit storage according to claim 1, characterized in that, The outer side of the buffer seat (11) is in contact with the inner wall of the handle housing (1), and the outer side of the buffer seat (11) is provided with several friction-reducing grooves (27).

9. A ratchet handle for convenient access to bit storage according to claim 1, characterized in that, The handle housing (1) is covered with an anti-slip sleeve (28), and both the anti-slip sleeve (28) and the handle housing (1) are provided with an anti-slip groove (29).

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