Slotted nut dismounting tool and spanner
By designing a slotted nut removal and installation tool for electric wrenches, and combining the jaws with the electric wrench, the problem of space constraints and time-consuming and labor-intensive disassembly of slotted nuts is solved, achieving a time-saving and labor-saving disassembly and installation effect.
Patent Information
- Application Number
- CN202520447747.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-14
AI Technical Summary
In the existing technology, the disassembly of slotted nuts is limited by space, making it difficult to complete and requiring time-consuming and laborious manual force.
Design a tool for disassembling and assembling slotted nuts, including a connecting seat and a disassembly head, which are connected by an electric wrench. The tool uses a chuck to engage the slotted nut in the slotted nut groove, and disassembly and assembly are achieved by operating the electric wrench.
It reduces space requirements, saves time and effort in assembling and disassembling slotted nuts, and allows for replacement of the disassembly head if damaged, thus reducing processing costs and material waste.
Smart Images

Figure CN223834461U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of disassembly and assembly tools, and more specifically, to a slotted nut disassembly and assembly tool and a wrench. Background Technology
[0002] Many component connections require fasteners such as bolts and nuts, including fasteners consisting of bolts and slotted nuts. However, when it is necessary to remove slotted nuts, existing crescent wrenches are limited by space and cannot complete the disassembly task in relatively narrow spaces; moreover, a large amount of force needs to be applied manually to remove the slotted nuts, which is time-consuming and laborious. Utility Model Content
[0003] The technical problem solved by this utility model is how to improve the problem that the disassembly of slotted nuts is difficult to complete due to space constraints, and the problem that the disassembly of existing slotted nuts requires manual action, which is time-consuming and labor-intensive.
[0004] The embodiments of this utility model can be implemented as follows:
[0005] This utility model provides a slotted nut disassembly and assembly tool, which is connected to an electric wrench and used to disassemble slotted nuts. The slotted nut disassembly and assembly tool includes:
[0006] Connecting bracket for connecting to the electric wrench;
[0007] The disassembly head includes a body and at least two claws; the center of the body has a through hole for avoiding screws; the body is detachably connected to the connecting seat, the claws are located on the side of the body away from the connecting seat, and at least two of the claws are spaced apart to engage in the slots of the slotted nut.
[0008] The advantages of the slotted nut disassembly and assembly tool provided by this utility model compared to the prior art include:
[0009] When this slotted nut removal and installation tool is mounted on an electric wrench, the jaws can be directly inserted into the slots of the slotted nut, and then the slotted nut can be removed or installed by operating the electric wrench. On one hand, as long as the tool can be mounted on the slotted nut, removal and installation can be completed, reducing the space requirements for disassembling and installing slotted nuts and thus improving the impact of space constraints. On the other hand, the removal and installation of slotted nuts can be completed directly using an electric wrench, saving time and effort. Therefore, this slotted nut removal and installation tool can improve the problem of space constraints hindering the removal of slotted nuts in existing technologies, and the time-consuming and labor-intensive problem of requiring manual removal.
[0010] In addition, since the disassembly head is detachably mounted to the connector, if the disassembly head is damaged, it can be directly replaced, which is convenient to operate, reduces processing steps, reduces processing costs, and also reduces material waste and costs.
[0011] Optionally, the main body is annular, and the main body has an annular mounting end face in its axial direction. The claws are disposed on the mounting end face, and at least two of the claws are arranged at equal intervals along the annular path of the mounting end face.
[0012] Optionally, in the radial direction of the annular path of the mounting end face, the width of the mounting end face is greater than the thickness of the claw; the side of the claw away from the center of the annular path is coplanar with the outer side of the main body.
[0013] Optionally, the connecting seat has a plurality of protruding locking blocks on the end face near the main body; the main body has a plurality of locking slots at one end near the connecting seat that are adapted to the plurality of locking blocks; the plurality of locking blocks are inserted into the plurality of locking slots one by one.
[0014] Optionally, the main body has multiple assembly holes that penetrate the main body; the slotted nut disassembly and assembly tool also includes multiple connectors; the multiple connectors pass through the multiple assembly holes one by one and are detachably connected to the connecting seat.
[0015] Optionally, in the axial direction of the main body, the mounting hole corresponds to the slot; the top of the card block is provided with a threaded hole adapted to the connector.
[0016] Optionally, the center of the connector has a clearance space corresponding to the through hole.
[0017] Optionally, a notch is provided on the side wall of the connecting seat in the radial direction, and the notch communicates with the clearance space.
[0018] Optionally, the bottom wall of the connecting seat has a protruding connecting part, and the connecting part has a square hole adapted to the electric wrench.
[0019] A wrench comprising the aforementioned slotted nut removal and installation tool.
[0020] The wrench provided by this utility model adopts the above-mentioned slotted nut disassembly and assembly tool. The beneficial effects of this wrench compared with the prior art are the same as the beneficial effects of the above-mentioned slotted nut disassembly and assembly tool compared with the prior art, and will not be repeated here. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the slotted nut disassembly and assembly tool provided in this embodiment;
[0023] Figure 2 This is a schematic diagram of the disassembly head provided in this embodiment;
[0024] Figure 3 This is a schematic diagram of the connector provided in this embodiment.
[0025] Icons: Slotted nut disassembly and assembly tool 10, connecting seat 100, locking block 110, threaded hole 111, clearance space 120, notch 130, connecting part 140, disassembly head 200, main body 210, mounting end face 201, through hole 211, slot 212, assembly hole 213, pawl 220. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0029] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0030] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0031] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0032] Please refer to the following: Figures 1 to 3 This embodiment provides a slotted nut removal and installation tool 10 and a wrench using the slotted nut removal and installation tool 10. The slotted nut removal and installation tool 10 and the wrench can be used to remove and install slotted nuts. Furthermore, the slotted nut removal and installation tool 10 and the wrench can improve the problem in the prior art where the removal of slotted nuts is difficult due to space constraints, and the problem that the removal of existing slotted nuts requires manual force, which is time-consuming and laborious.
[0033] In this embodiment, the slotted nut removal and installation tool 10 includes a connecting seat 100 and a removal head 200. The connecting seat 100 is used to connect with an electric wrench; the removal head 200 includes a body 210 and at least two claws 220; the body 210 has a through hole 211 at its center for avoiding screws; the body 210 is detachably connected to the connecting seat 100, and the claws 220 are located on the side of the body 210 away from the connecting seat 100, and at least two claws 220 are spaced apart to engage in the slots of the slotted nut.
[0034] When disassembling and assembling slotted nuts, the connecting seat 100 and the disassembly head 200 can be assembled first, that is, the main body 210 can be assembled onto the connecting seat 100. Then, the slotted nut disassembly and assembly tool 10 can be assembled onto the electric wrench to complete the wrench assembly. After the jaws 220 on the main body 210 are inserted into the slots of the slotted nut, the connecting seat 100 and the disassembly head 200 can be rotated as a whole by running the electric wrench, thereby realizing the disassembly and assembly of the slotted nut.
[0035] As described above, when the slotted nut removal and installation tool 10 is mounted on an electric wrench, the jaws 220 can be directly inserted into the slots of the slotted nut, and then the slotted nut can be removed or installed by operating the electric wrench. On one hand, as long as the slotted nut removal and installation tool 10 can be mounted on the slotted nut, the removal and installation of the slotted nut can be completed, reducing the space requirements for removing and installing slotted nuts and thus improving the impact of space constraints on removal and installation. On the other hand, the removal and installation of slotted nuts can be completed directly using an electric wrench, saving time and effort. Therefore, the slotted nut removal and installation tool 10 can improve the problem in the prior art where the removal of slotted nuts is difficult due to space constraints, and the problem of the time-consuming and labor-intensive process of removing existing slotted nuts by manual force.
[0036] It is worth noting that the number of jaws 220 is at least two. Since the number of slots on different slotted screws varies, and the number of jaws 220 on the disassembly head 200 provided in this embodiment can be selected according to the actual number of slotted screws, the disassembly head 200 provided in this embodiment can have various specifications. Different specifications of disassembly heads 200 have different numbers of jaws 220, so the corresponding disassembly head 200 can be selected according to the actual situation of the slotted nut. Of course, in some embodiments, the disassembly head 200 with two jaws 220 can also be used on slotted nuts with four slots.
[0037] In addition, since the chuck 220 in the slotted nut removal tool 10 is a relatively easy part to be damaged, the removal head 200 is manufactured separately and is detachably assembled to the connector 100. If the removal head 200 is damaged, it can be directly replaced, which is convenient to operate, reduces processing steps, reduces processing costs, and also reduces material waste and costs. At the same time, it is easy to standardize the removal head 200, which is beneficial for subsequent replacement.
[0038] In this embodiment, the main body 210 is annular, and the center of the annular main body 210 forms the aforementioned through hole 211. This through hole 211 can avoid the screw corresponding to the slotted nut, facilitating the screwing in and out of the slotted nut. The main body 210 has an annular mounting end face 201 in its axial direction, and claws 220 are provided on the mounting end face 201, with at least two claws 220 arranged at equal intervals along the annular path of the mounting end face 201. Arranging the claws 220 at equal intervals along the mounting end face 201 facilitates their correspondence with the multiple slots on the slotted nut, making it convenient for the disassembly head 200 to engage with the slotted nut.
[0039] Of course, in some embodiments, the multiple claws 220 on the mounting end face 201 can also be spaced out. For example, the mounting end face 201 is provided with three claws 220, where the arc required between two adjacent claws 220 is 180°. In this case, the disassembly head 200 can be used to disassemble and assemble the slotted nuts with four slots.
[0040] Furthermore, in the radial direction of the annular path of the mounting end face 201, the width of the mounting end face 201 is greater than the thickness of the jaw 220; the side of the jaw 220 away from the center of the annular path is coplanar with the outer side of the main body 210. On the one hand, this can prevent objects on the bolt from affecting the slot of the jaw 220 when it is inserted into the slotted nut, ensuring a stable fit between the jaw 220 and the slotted nut; on the other hand, it can also be seen as increasing the thickness of the main body 210, improving the overall strength, and reducing the probability of damage to the disassembly head 200 during disassembly and assembly.
[0041] Of course, in other embodiments, the thickness of the claw 220 may also be equal to the width of the mounting end face 201.
[0042] In this embodiment, a plurality of locking blocks 110 are protruding on the end face of the connector 100 near the main body 210; a plurality of slots 212 adapted to the locking blocks 110 are opened at one end of the main body 210 near the connector 100; the plurality of locking blocks 110 are inserted into the plurality of slots 212 in a corresponding manner. Of course, it can also be seen that the locking blocks 110 are formed by protrusion at one end of the main body 210 near the connector 100, and the slots 212 are opened on the connector 100.
[0043] By engaging the locking block 110 and the locking slot 212, during the operation of the electric wrench that causes the connecting seat 100 to rotate the disassembly head 200, the locking block 110 and the locking slot 212 can bear part of the force, preventing all the force from being concentrated on the connection structure between the disassembly head 200 and the connecting seat 100, thus preventing the connection stability between the disassembly head 200 and the connecting seat 100 from being compromised. Furthermore, the locking block 110 and the locking slot 212, through their positioning function during assembly, can improve the assembly efficiency of the disassembly head 200 and the connecting seat 100.
[0044] In this embodiment, the locking blocks 110 and the slots 212 are evenly distributed along the circumferential path, which helps the locking blocks 110 to be subjected to uniform force and prevents local damage. In addition, the width of the locking blocks 110 is equal everywhere in the axial direction of the connecting seat 100, that is, the locking blocks 110 can be regarded as square blocks; in other embodiments, the locking blocks 110 can also be set as trapezoidal, triangular or other shapes.
[0045] Furthermore, the main body 210 has multiple assembly holes 213 that penetrate the main body 210; the slotted nut disassembly and assembly tool 10 also includes multiple connectors (not shown in the figure); the multiple connectors pass through the multiple assembly holes 213 one by one and are detachably connected to the connecting seat 100. By having multiple connectors pass through the main body 210 and then connect to the connecting seat 100, the connection stability between the main body 210 and the connecting seat 100 can be further improved, ensuring stable disassembly and assembly of the slotted nut.
[0046] Furthermore, in the axial direction of the main body 210, the mounting hole 213 corresponds to the slot 212; the top of the locking block 110 has a threaded hole 111 adapted to the connector. In other words, the connector can be a screw, which passes through the main body 210 and engages with the threaded hole 111 to achieve the connection between the main body 210 and the connecting seat 100. By aligning the mounting hole 213 with the slot 212 and opening the threaded hole 111 on the locking block 110, the extension length of the mounting hole 213 can be shortened, thus allowing for a wider range of connector options and helping to reduce design costs.
[0047] It is worth noting that the mounting hole 213 is formed on the mounting end face 201 and is located between two adjacent latches 220. Based on this, generally, the latches 220 correspond to the grooves between two adjacent latch blocks 110. It should be understood that in other embodiments, the latches 220 may also correspond to the latch slots 212, so that the mounting hole 213 corresponds to the grooves between adjacent latch blocks 110.
[0048] In this embodiment, the connecting seat 100 has a clearance space 120 at its center corresponding to the through hole 211. When the bolt corresponding to the slotted nut is too long, the clearance space 120 can be used to avoid the bolt, which facilitates the disassembly and assembly of the slotted nut and improves the applicability of the slotted nut disassembly and assembly tool 10.
[0049] Furthermore, a notch 130 is provided radially on the side wall of the connecting seat 100, and the notch 130 communicates with the clearance space 120. The notch 130 allows observation of the bolt corresponding to the slotted nut extending into the clearance space 120, which helps to determine whether the slotted nut should continue to be screwed in, thus avoiding damage to the connecting seat 100 by the bolt and also preventing the bolt from being damaged.
[0050] In this embodiment, the bottom wall of the connecting seat 100 is provided with a connecting part 140, and the connecting part 140 has a square hole adapted to the electric wrench. When assembling the slotted nut removal and installation tool 10, simply insert the square hole into the output shaft of the electric wrench.
[0051] Based on the slotted nut disassembly and assembly tool 10 provided above, this embodiment also provides a wrench that adopts the slotted nut disassembly and assembly tool 10. This wrench can also improve the problem that the disassembly of slotted nuts is affected by space limitations in the prior art, making it difficult to complete the disassembly, as well as the problem that the existing slotted nuts require manual disassembly, which is time-consuming and laborious.
[0052] In summary, the slotted nut removal and installation tool 10 and wrench provided in this embodiment allow the jaws 220 to be directly inserted into the slots of the slotted nut, and then the slotted nut can be removed or installed by operating an electric wrench. On one hand, as long as the slotted nut removal and installation tool 10 can be fitted onto the slotted nut, the removal and installation of the slotted nut can be completed, reducing the space requirements for removing and installing the slotted nut and thus improving the impact of space constraints on removal and installation. On the other hand, the removal and installation of the slotted nut can be completed directly by an electric wrench, saving time and effort. Therefore, the slotted nut removal and installation tool 10 can improve the problem in the prior art where the removal of slotted nuts is difficult due to space constraints, and the problem of the time-consuming and labor-intensive process of removing existing slotted nuts by manual intervention.
[0053] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A slotted nut removal and installation tool (10), for connection to an electric wrench and for removing slotted nuts, characterized in that, The slotted nut removal and installation tool (10) includes: Connecting base (100) for connecting to the electric wrench; The disassembly head (200) includes a body (210) and at least two claws (220); the body (210) has a through hole (211) at its center for avoiding screws; the body (210) is detachably connected to the connecting seat (100), the claws (220) are located on the side of the body (210) away from the connecting seat (100), and at least two of the claws (220) are spaced apart for engaging in the slots of the slotted nut.
2. The slotted nut disassembly and assembly tool (10) according to claim 1, characterized in that, The main body (210) is annular, and the main body (210) has an annular mounting end face (201) in its axial direction. The claws (220) are provided on the mounting end face (201), and at least two of the claws (220) are arranged at equal intervals along the annular path of the mounting end face (201).
3. The slotted nut disassembly and assembly tool (10) according to claim 2, characterized in that, In the radial direction of the annular path of the mounting end face (201), the width of the mounting end face (201) is greater than the thickness of the claw (220); the side of the claw (220) away from the center of the annular path is coplanar with the outer side of the body (210).
4. The slotted nut disassembly and assembly tool (10) according to claim 1, characterized in that, The connecting seat (100) has a plurality of locking blocks (110) protruding on the end face of the main body (210); the main body (210) has a plurality of slots (212) that are adapted to the plurality of locking blocks (110) at one end of the connecting seat (100); the plurality of locking blocks (110) are inserted into the plurality of slots (212) one by one.
5. The slotted nut disassembly and assembly tool (10) according to claim 4, characterized in that, The main body (210) has a plurality of assembly holes (213) through which the plurality of assembly holes (213) pass. The slotted nut disassembly and assembly tool (10) also includes a plurality of connectors. The plurality of connectors pass through the plurality of assembly holes (213) one by one and are detachably connected to the connector (100).
6. The slotted nut disassembly and assembly tool (10) according to claim 5, characterized in that, In the axial direction of the main body (210), the mounting hole (213) corresponds to the slot (212); the top of the card block (110) is provided with a threaded hole (111) that is adapted to the connector.
7. The slotted nut disassembly and assembly tool (10) according to claim 1, characterized in that, The connecting seat (100) has a clearance space (120) at its center corresponding to the through hole (211).
8. The slotted nut disassembly and assembly tool (10) according to claim 7, characterized in that, The connecting seat (100) has a notch (130) in the radial direction on its side wall, and the notch (130) communicates with the clearance space (120).
9. The slotted nut disassembly and assembly tool (10) according to claim 1, characterized in that, The bottom wall of the connecting seat (100) is provided with a connecting part (140), and the connecting part (140) is provided with a square hole adapted to the electric wrench.
10. A wrench, characterized in that, Includes the slotted nut removal and installation tool (10) as described in any one of claims 1-9.