Detachable and replaceable socket spanner
By designing a replaceable socket wrench, using chrome vanadium steel to make the claw bar and fixing it with a cap, the problem of increased cost and poor flexibility caused by claw bar wear in socket wrenches is solved, achieving a high degree of flexibility and low cost.
Patent Information
- Application Number
- CN202511642949.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2026-02-06
AI Technical Summary
Existing socket wrenches become unusable due to severe wear of the claw shank during use, leading to increased production costs and reduced flexibility.
Design a replaceable socket wrench, including a cylinder and multiple claw bars. The claw bars are fixed by a cover, allowing the number of claw holes to be selected as needed to form socket wrenches with different numbers of claws. The claw bars are made of chrome vanadium steel to improve strength and wear resistance.
It reduces production costs, improves the flexibility and lifespan of socket wrenches, reduces the frequency of claw bar replacements, and increases production efficiency.
Smart Images
Figure CN121468435A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of wrenches, in particular to a detachable sleeve wrench. BACKGROUND
[0002] The cargo hold area of a self-unloading ship is composed of four bottom pointed cargo holds, and nearly 4000 square meters of wear-resistant plates are installed on the slope surface. Each square meter of wear-resistant plate needs to be installed with 15-20 M8 fixing bolts, and nearly 4000 square meters of wear-resistant plates need to be installed with about 65000 fixing bolts. When installing these bolts, a special sleeve wrench (three-jaw or four-jaw sleeve wrench) needs to be used. Since the working intensity is relatively large, each sleeve wrench cannot be used continuously after tightening 2000-3000 bolts due to the serious wear of the claw rod at the front end of the sleeve wrench. The sleeve wrench purchased from the wear-resistant plate manufacturer is also relatively expensive, so the production cost will increase due to the high consumption, and the existing sleeve wrench is an integral type, and the number of claw rods cannot be increased or decreased, so the flexibility is poor. SUMMARY
[0003] In view of the deficiencies of the prior art, the present application aims to provide a detachable sleeve wrench which can reduce production cost and has high flexibility.
[0004] To achieve the above-mentioned purpose, the detachable sleeve wrench adopts the technical scheme of:
[0005] A detachable sleeve wrench comprises a cylinder body and a plurality of claw rods. A first avoiding hole is formed at the front end of the cylinder body, and a clamping hole coaxial with the cylinder body is formed at the tail end of the cylinder body. Twelve claw holes are formed around the clamping hole and the first avoiding hole, which are uniformly arranged in a circle around the axis of the cylinder body. The claw holes are used for inserting the claw rods. The tail part of the claw rod is provided with a hanging table. The tail side of the claw hole is provided with a limiting groove matched with the hanging table. The tail end of the cylinder body is detachably connected with a cover. The cover is provided with a second avoiding hole. When the claw rod is limited in the claw hole by the cover, the front end of the claw rod protrudes from the front end surface of the cylinder body.
[0006] Preferably, the cover is in a cylindrical shape, the second avoiding hole is formed in the middle part of the bottom wall of the cover, the inner side wall of the cover is provided with an internal thread, and the outer side wall of the cylinder body is provided with an external thread matched with the internal thread.
[0007] Preferably, the cover is in a flat shape, the second avoiding hole is formed in the middle part of the cover, a plurality of bolt through holes are formed in the edge of the cover and are uniformly arranged in a circle, a threaded hole corresponding to the bolt through hole is formed at the tail end of the cylinder body, and the cover is fixed to the cylinder body by bolts.
[0008] Preferably, the clamping hole is in a square shape, and a semispherical clamping pit is formed in the side wall of the clamping hole.
[0009] Preferably, the barrel, the cover are made of 45 steel, and the claw rod is made of chrome vanadium steel.
[0010] Compared with the prior art, the present application has the following advantages:
[0011] 1. Three or four of the twelve claw holes are selected according to the need, the claw rod is inserted, and the cover is fixed, thereby forming a three-claw sleeve wrench or a four-claw sleeve wrench, which is high in flexibility; when a claw rod is seriously worn, the claw rod can be replaced, thereby reducing the production cost.
[0012] 2. The claw rod is made of chrome vanadium steel, so that the strength, hardness and wear resistance are improved, the service life of the claw rod is prolonged, the replacement frequency of the claw rod is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a top view of the detachable sleeve wrench of embodiment one of the present application.
[0014] Figure 2 is an A-A sectional view of Figure 1 .
[0015] Figure 3 is a structural schematic view of the barrel of embodiment one.
[0016] Figure 4 is a structural schematic view of the cover of embodiment one.
[0017] Figure 5 is a top view of the detachable sleeve wrench of embodiment two of the present application.
[0018] Figure 6 is a B-B sectional view of Figure 5 .
[0019] Figure 7 is a four-claw schematic view of the detachable sleeve wrench of the present application.
[0020] Figure 8 is a three-claw schematic view of the detachable sleeve wrench of the present application.
[0021] wherein 1 barrel, 11 first avoiding hole, 12 clamping hole, 13 semispherical clamping pit, 14 claw hole, 15 limiting groove, 16 external thread, 17 threaded hole, 2 claw rod, 21 hanging table, 3 cover, 31 second avoiding hole, 32 internal thread, 33 bolt through hole. DETAILED DESCRIPTION
[0022] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. After reading this invention, any modifications of the invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.
[0023] Example 1, as Figures 1-4 As shown, a replaceable socket wrench includes a cylinder 1 and multiple claw bars 2. The cylinder is made of 45# steel, and the claw bars are made of chrome vanadium steel. A first clearance hole 11 is provided at the front end of the cylinder, and a locking hole 12, coaxial with the cylinder, is provided at the rear end of the cylinder. The locking hole is square, and a hemispherical locking recess 13 is provided on one side wall of the locking hole. Twelve claw holes 14 are provided around the locking hole and the first clearance hole, and are evenly arranged circumferentially around the axis of the cylinder. The claw holes are... The claw rod is inserted, and the tail end of the claw rod is integrally formed with a mounting platform 21. A limiting groove 15 that matches the mounting platform is opened on the tail side of the claw hole. The tail end of the cylinder is detachably connected to a cover 3. The cover is cylindrical and is also made of 45 steel. A second clearance hole 31 is opened in the middle of the bottom wall of the cover. An internal thread 32 is machined on the inner side wall of the cover. An external thread 16 that matches the internal thread is opened on the outer side wall of the cylinder. When the cover restricts the claw rod in the claw hole, the front end of the claw rod protrudes from the front end face of the cylinder.
[0024] Example 1, as Figures 5-6 As shown, the difference from Embodiment 1 is the connection method between the cap and the cylinder. In this embodiment, the cap is flat, a second clearance hole is opened in the middle of the cap, four bolt through holes 33 are evenly arranged in a circle on the edge of the cap, and threaded holes 17 corresponding to the bolt through holes are opened at the tail end of the cylinder. The cap is fixed to the cylinder by bolts.
[0025] The specific working process and principle of this invention are as follows: Figure 7 As shown, select four claw holes arranged in a cross shape as needed, insert the claw shank sequentially, and then use a sealing plate to fix the claw shank in the claw holes, thus forming a four-jaw socket wrench; Figure 8 As shown, similarly, three claw holes at 120° angles to each other are selected, and the claw shank is inserted sequentially. A sealing plate is then used to fix the claw shank within the claw holes, forming a three-jaw socket wrench. If needed, six claw holes at 60° angles to each other can also be selected, and the claw shank inserted sequentially, then secured with a sealing plate, forming a six-jaw socket wrench. During use, when a claw shank becomes severely worn, only that individual shank needs to be replaced, rather than the entire wrench, reducing wear and tear and lowering production costs. The claw shank is made of chrome vanadium steel, while the cylinder and sealing cap are made of 45# steel—"using the best steel where it matters most"—further reducing costs. The strength, hardness, and wear resistance of the claw shank are improved, naturally increasing its service life and reducing the frequency of replacement, thus improving production efficiency.
Claims
1. A replaceable socket wrench, characterized in that: The device includes a cylinder and multiple claw rods. The front end of the cylinder has a first clearance hole, and the rear end of the cylinder has a snap-fit hole coaxial with the cylinder. Around the snap-fit hole and the first clearance hole, there are twelve claw holes. The twelve claw holes are evenly arranged in a circle around the axis of the cylinder. The claw holes are used to insert the claw rods. The tail end of the claw rod is provided with a mounting platform. The tail side of the claw hole is provided with a limiting groove that cooperates with the mounting platform. The tail end of the cylinder is detachably connected to a cap. The cap has a second clearance hole. When the cap restricts the claw rods in the claw holes, the front end of the claw rods protrudes from the front end face of the cylinder.
2. The replaceable socket wrench according to claim 1, characterized in that: The cover is cylindrical, with a second clearance hole located in the middle of the bottom wall of the cover. The inner wall of the cover is provided with an internal thread, and the outer wall of the cylinder is provided with an external thread that matches the internal thread.
3. The replaceable socket wrench according to claim 1, characterized in that: The cover is flat, the second clearance hole is opened in the middle of the cover, and multiple bolt holes are evenly arranged in a circle on the edge of the cover. The tail end of the cylinder is provided with threaded holes that correspond one-to-one with the bolt holes. The cover is fixed to the cylinder by bolts.
4. The replaceable socket wrench according to claim 1, characterized in that: The snap-fit hole is square, and a hemispherical snap-fit pit is formed on one side wall of the snap-fit hole.
5. The replaceable socket wrench according to claim 1, characterized in that: The cylinder and cover are made of No. 45 steel, and the claw rod is made of chrome vanadium steel.