一种简易可调链条扳手

Abstract

本实用新型涉及一种简易可调链条扳手。它解决了现有链条扳手拆卸效果差等技术问题。包括一端敞口且呈中空状的套管，套管敞口端一侧与链条的一端相连且链条另一端由套管敞口端穿入套管内侧，套管敞口端另一侧具有与敞口相连通的缺口，在缺口处通过转动安装结构设有外侧能延伸至敞口内且能与链条上的定位槽相卡接的定位齿轮，在套管敞口端具有缺口的一侧通过竖直可调结构活动设有位于定位齿轮下方且能将定位齿轮周向定位的齿轮制动螺栓。优点在于：链条一端焊接设置在套管上和通过焊接设置在套管上的转动安装组件，能够保证链条在拆卸过程中的拆卸效果。转动安装结构能够便于定位齿轮稳定转动设置在缺口内，保证定位齿轮对链条的卡接效果。

Claims

1. A simple adjustable chain wrench comprising a sleeve (1) which is open at one end (11) and is hollow, characterized in that, One side of the sleeve (1) opening (11) is connected to one end of the chain (2), and the other end of the chain (2) passes through the sleeve (1) opening (11) into the inside of the sleeve (1). The other side of the sleeve (1) opening (11) has a notch (12) that communicates with the opening (11). At the notch (12), a positioning gear (4) is provided by a rotating mounting structure (3) that can extend outward into the opening (11) and engage with the positioning groove (21) on the chain (2). On the side of the sleeve (1) opening (11) with the notch (12), a gear brake bolt (6) is movably provided by a vertically adjustable structure (5) located below the positioning gear (4) and capable of circumferentially positioning the positioning gear (4).

2. A simple adjustable chain spanner according to claim 1 wherein, The sleeve (1) has a cylindrical structure, and one end of the chain (2) is fixed by welding on the outside of one end of the sleeve (1).

3. A simple adjustable chain wrench as defined in claim 1, wherein The chain (2) has a plurality of sleeves (22) and the positioning grooves (21) are respectively formed between two adjacent sleeves (22).

4. A simple adjustable chain wrench as defined in claim 1, wherein The notch (12) is vertically set on one side of the opening (11) end of the sleeve (1) and the upper end of the notch (12) penetrates the opening (11) end of the sleeve (1). The positioning gear (4) has a number of teeth (41) and at least one tooth (41) is inserted into at least one positioning groove (21) of the chain (2).

5. A simple adjustable chain wrench as defined in claim 1 wherein, The rotating mounting structure (3) includes a gear fixing shaft (31) that is laterally arranged at the notch (12) via a rotating mounting assembly (7). The positioning gear (4) has a gear center hole (42) at its center, and the positioning gear (4) is rotatably connected to the gear fixing shaft (31) through the gear center hole (42).

6. A simple adjustable chain spanner according to claim 5 wherein, The rotating mounting assembly (7) includes two fixed seats (71) that are welded to each other on both sides of the notch (12), and the gear fixing shaft (31) is fixedly disposed between the two fixed seats (71).

7. A simple adjustable chain wrench as defined in claim 1 wherein, The gear brake bolt (6) is axially movable on the outside of the sleeve (1), and the gear brake bolt (6) is located directly below the positioning gear (4).

8. A simple adjustable chain wrench as defined in claim 1, wherein, The upper end of the gear brake bolt (6) has a brake part (61) that abuts against any one of the tooth grooves (43) in the positioning gear (4), and the diameter of the brake part (61) is smaller than the width of the tooth groove (43).

9. A simple adjustable chain wrench as defined in claim 1 wherein, The vertically adjustable structure (5) includes a fixing nut (51) fixed on the outside of the sleeve (1) by welding, and the gear brake bolt (6) passes vertically through the fixing nut (51) and is threadedly connected to the fixing nut (52).

10. The simple adjustable chain wrench according to claim 1, wherein, A positioning gap (8) is formed between the inner circumferential side of the opening (11) end of the sleeve (1) and the outer circumferential side of the positioning gear (4) extending into the opening (11) of the sleeve (1), allowing the chain (2) to pass through.

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