Internal hexagonal bolt screwing tool

Abstract

The utility model relates to the technical field of bolt screwing tools, and discloses an inside hexagonal bolt screwing tool which comprises a tool sleeve and an assembly block. The screwing block is in threaded fit in the device groove, so that the first wedge table on the circumference of the inner wall of the device groove is extruded in the second sliding groove to slidably extrude the second pressure spring, and the first wedge table can extrude the corresponding second wedge table below, so that the second wedge table can slide along the first sliding groove; in this way, the sliding rod can slide on the inner diameter of the sleeve opening along the inserting groove, and the six sets of clamping blocks on the inner diameter of the sleeve opening can draw close to the circle center, so that hexagon bolts of different sizes can be engaged and sleeved, and screwing work of the hexagon bolts of different sizes is achieved. According to the bolt screwing tool sleeve, the connecting block at the end, close to the sliding rod, of the clamping block can be disassembled through the fixing bolt, so that the clamping block can be disassembled from the end of the sliding rod to be replaced, the clamping block in the bolt screwing tool sleeve can be replaced in time after being seriously abraded, and the overall service life of a screwing tool is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt screwing tools, in particular to a hexagon socket bolt screwing tool. Background Art

[0002] A hexagon socket bolt tightening tool is a tool used to tighten or loosen hexagon socket bolts. It usually consists of a handle and a replaceable hexagon socket head to accommodate hexagon socket bolts of different sizes.

[0003] For example, the Chinese patent publication number CN219380504U discloses a tool for tightening hexagon socket bolts, which relates to the field of fastener technology and includes a conversion head and an open-end torque wrench. The cross-section of the conversion head is an equilateral hexagon and is adapted to the shape of the slot on the head of the hexagon socket bolt.

[0004] In the aforementioned reference, the remaining exposed portion of the adapter is clamped by a clamping head on an open-end torque wrench, and the desired tightening torque can be easily achieved with the open-end torque wrench, thereby conveniently achieving the tightening operation of the hexagon socket bolt and improving the control accuracy of the tightening torque.

[0005] However, when the existing hexagon socket bolt tightening tool is used, the internal spacing of the sleeve of the tightening tool head is unique, and it can only tighten hexagonal bolts of one size, resulting in the tightening tool being unable to be used for tightening hexagonal bolts of different sizes. In addition, if the hexagon socket of the sleeve of the tightening tool head is severely worn, the entire tightening tool cannot be used and has a short service life. Utility Model Content

[0006] The purpose of the utility model is to provide a hexagon socket bolt screwing tool, which can realize the screwing of hexagon socket bolts of different sizes, has a wide range of applications, and can replace the hexagon socket of the head sleeve in time after it is worn, thereby improving the overall service life of the screwing tool.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tool for tightening hexagon socket bolts, comprising a tool sleeve and an assembly block, a sleeve is provided in the middle of the assembly block, a device groove is opened between the tool sleeve and the assembly block, a screw block is installed in the device groove through a thread, a clamping block is provided at medium intervals on the inner wall of the sleeve, a sliding rod is movably installed at equal intervals on the inner diameter of the assembly block, the clamping block is fixedly installed with a connecting block near one end of the sliding rod, the connecting block is movably sleeved on one end of the sliding rod, a fixing bolt is installed at the connection point between the connecting block and the sliding rod through a thread, the sliding rod is fixedly connected to a second wedge at one end away from the clamping block, and a first wedge is slidably installed at equal intervals on the inner wall of the device groove.

[0008] Preferably, guide grooves are provided at equal intervals on the top of the assembly block, and the fixing bolts slide in the guide grooves.

[0009] Preferably, slots are formed on the inner diameter of the assembly block at equal intervals, and the slide bars are movably inserted into the corresponding inner walls of the slots.

[0010] Preferably, first sliding grooves are opened at equal intervals on the circumference of the bottom inner wall of the device groove, the second wedge slides in the inner wall of the first sliding groove, and a first compression spring is fixedly installed between the second wedge and the inner wall of the device groove.

[0011] Preferably, second sliding grooves are opened at equal intervals on the circumference of the inner wall of the device groove, the first wedge slides in the inner wall of the second sliding groove, and a second compression spring is fixedly installed between the first wedge and the inner wall of the second sliding groove.

[0012] Preferably, the contact surfaces of the second wedge platform and the corresponding first wedge platform are both inclined structures, and the bottom surface of the screw block is in contact with the first wedge platform.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model is to engage the screw block thread in the device groove, thereby squeezing the first wedge on the circumference of the inner wall of the device groove to slide and squeeze the second compression spring in the second sliding groove. The first wedge can squeeze the second wedge corresponding to the lower side, so that the second wedge can slide along the first sliding groove, so that the slide rod can slide along the slot on the inner diameter of the sleeve, and the six groups of clamping blocks on the inner diameter of the sleeve can move closer to the center of the circle, so that hexagonal bolts of different sizes can be bitten and set, and the hexagonal bolts of different sizes can be screwed;

[0015] The connecting block of the clamping block near one end of the sliding rod in the utility model can be disassembled by a fixing bolt, so that the clamping block can be disassembled from the end of the sliding rod and replaced, so that the clamping block in the sleeve of the bolt screwing tool can be replaced in time after being seriously worn, thereby improving the overall service life of the screwing tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the side sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the clamping block in the utility model;

[0019] Figure 4 for Figure 2 Schematic diagram of the locally enlarged structure at point A in the middle.

[0020] In the figure: 1. tool sleeve; 2. screw block; 3. clamping block; 4. slide rod; 5. first wedge; 11. sleeve; 12. assembly block; 13. installation groove; 120. guide groove; 121. fixing bolt; 122. slot; 31. connecting block; 41. second wedge; 42. first compression spring; 43. first slide groove; 51. second compression spring; 52. second slide groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] See also Figure 1-4 The utility model provides a technical solution: a hexagon socket bolt screwing tool, comprising a tool sleeve 1, an assembly block 12, a sleeve 11 is provided in the middle of the assembly block 12, a device groove 13 is provided between the tool sleeve 1 and the assembly block 12, a screwing block 2 is installed in the device groove 13 through a thread, clamping blocks 3 are provided at equal intervals on the inner wall of the sleeve 11, and sliding rods 4 are movably installed at equal intervals on the inner diameter of the assembly block 12;

[0023] The end of the clamping block 3 close to the slide rod 4 is fixedly mounted with a connecting block 31, which is movably sleeved on the end of the slide rod 4. A fixing bolt 121 is threadedly installed at the junction of the connecting block 31 and the slide rod 4. The end of the slide rod 4 away from the clamping block 3 is fixedly connected to the second wedge 41. The first wedge 5 is slidably mounted on the inner wall of the device groove 13 at equal intervals.

[0024] The clamping blocks 3 arranged at equal intervals on the inner diameter sleeve 11 of the tooling sleeve 1 form an inner hexagon, so that the bolt can be screwed after being engaged with the outside of the bolt;

[0025] By threading the screw block 2 into the device groove 13, the first wedge 5 on the circumference of the inner wall of the device groove 13 is squeezed to slide and squeeze the second compression spring 51 in the second slide groove 52. The first wedge 5 can squeeze the corresponding second wedge 41 below, so that the second wedge 41 can slide along the first slide groove 43. In this way, the slide rod 4 can slide along the slot 122 on the inner diameter of the sleeve 11. The six groups of clamping blocks 3 on the inner diameter of the sleeve 11 can move closer to the center of the circle, so that hexagonal bolts of different sizes can be bitten and set, thereby realizing the screwing of hexagonal bolts of different sizes;

[0026] The connecting block 31 at one end of the clamping block 3 close to the slide rod 4 can be disassembled by the fixing bolt 121, so that the clamping block 3 can be disassembled from the end of the slide rod 4 and replaced, so that the clamping block 3 in the bolt tightening tool sleeve 1 can be replaced in time after being severely worn, thereby improving the overall life of the tightening tool.

[0027] Among them, guide grooves 120 are opened at equal intervals on the top of the assembly block 12, and the fixing bolts 121 slide in the guide grooves 120. When the slide rod 4 drives the clamping block 3 to adjust the spacing, the fixing bolts 121 can slide synchronously along the guide grooves 120.

[0028] Among them, slots 122 are opened on the inner diameter of the assembly block 12 at equal intervals, and the slide rod 4 is movably inserted into the inner wall of the corresponding slot 122. The first slide grooves 43 are opened at equal intervals on the circumference of the bottom inner wall of the device groove 13. The second wedge 41 slides in the inner wall of the first slide groove 43. A first compression spring 42 is fixedly installed between the second wedge 41 and the inner wall of the device groove 13. Second slide grooves 52 are opened on the circumference of the inner wall of the device groove 13 at equal intervals. The first wedge 5 slides in the inner wall of the second slide groove 52. The first wedge 5 and the second slide groove A second compression spring 51 is fixedly installed between the inner walls of 52. The contact surfaces of the second wedge stage 41 and the corresponding first wedge stage 5 are both inclined structures. The bottom surface of the screw block 2 fits with the first wedge stage 5. The first wedge stage 5 squeezes the corresponding second wedge stage 41 below, so that the second wedge stage 41 can slide along the first slide groove 43. In this way, the slide rod 4 can slide along the slot 122 on the inner diameter of the sleeve 11. The six groups of clamping blocks 3 on the inner diameter of the sleeve 11 can move closer to the center of the circle, so that hexagonal bolts of different sizes can be bitten into the sleeve.

[0029] Working principle: When in use, the screw block 2 is threadedly engaged in the device groove 13, thereby squeezing the first wedge 5 on the circumference of the inner wall of the device groove 13 to slide and squeeze the second compression spring 51 in the second slide groove 52. The first wedge 5 can squeeze the corresponding second wedge 41 below, so that the second wedge 41 can slide along the first slide groove 43, so that the slide rod 4 can slide along the slot 122 on the inner diameter of the sleeve 11. The six groups of clamping blocks 3 on the inner diameter of the sleeve 11 can move closer to the center of the circle, so that hexagonal bolts of different sizes can be bitten and set, realizing the screwing of hexagonal bolts of different sizes;

[0030] In the present invention, the depth of the screw block 2 and the inner wall of the device groove 13 can be used to control the sliding displacement of the first wedge 5 on the second wedge 41, so that the six groups of slide rods 4 slide and drive the six groups of clamping blocks 3 to move and adjust the spacing, so that hexagonal bolts of different sizes can be engaged and assembled, thereby realizing the screwing of hexagonal bolts of different sizes.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes and modifications may be made to these embodiments without departing from the principles of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hexagon socket bolt tightening tool, comprising a tool sleeve (1) and an assembly block (12), characterized in that: A sleeve (11) is provided in the middle of the assembly block (12), and an installation groove (13) is provided between the tool sleeve (1) and the assembly block (12). A screw block (2) is installed in the installation groove (13) through a thread, and a clamping block (3) is provided at a medium interval on the inner wall of the sleeve (11). A sliding rod (4) is movably installed at an equal interval on the inner diameter of the assembly block (12), and a connecting block (31) is fixedly installed near one end of the sliding rod (4). The connecting block (31) is movably sleeved on one end of the sliding rod (4), and a fixing bolt (121) is installed at the connection between the connecting block (31) and the sliding rod (4) through a thread. The sliding rod (4) is fixedly connected to a second wedge platform (41) at one end away from the clamping block (3), and a first wedge platform (5) is slidably installed at an equal interval on the inner wall of the installation groove (13).

2. The hexagon socket bolt tightening tool according to claim 1, characterized in that: The top of the assembly block (12) is provided with guide grooves (120) at equal intervals, and the fixing bolts (121) slide in the guide grooves (120).

3. The hexagon socket bolt tightening tool according to claim 2, characterized in that: Slots (122) are provided at equal intervals through the inner diameter of the assembly block (12), and the slide rods (4) are movably inserted into the inner walls of the corresponding slots (122).

4. The hexagon socket bolt tightening tool according to claim 3, characterized in that: A first sliding groove (43) is provided at equal intervals on the circumference of the bottom inner wall of the device groove (13); the second wedge platform (41) slides in the inner wall of the first sliding groove (43); and a first compression spring (42) is fixedly installed between the second wedge platform (41) and the inner wall of the device groove (13).

5. The hexagon socket bolt tightening tool according to claim 4, characterized in that: Second sliding grooves (52) are provided at equal intervals on the circumference of the inner wall of the device groove (13); the first wedge platform (5) slides in the inner wall of the second sliding groove (52); and a second compression spring (51) is fixedly installed between the first wedge platform (5) and the inner wall of the second sliding groove (52).

6. The hexagon socket bolt tightening tool according to claim 5, characterized in that: The contact surfaces of the second wedge platform (41) and the corresponding first wedge platform (5) are both inclined structures, and the bottom surface of the screw block (2) is in contact with the first wedge platform (5).

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