CN203936841U

CN203936841U - Ratchet spanner

Info

Publication number: CN203936841U
Application number: CN201420361338.5U
Authority: CN
Inventors: 郭南初; 佟中根
Original assignee: Suzhou Vocational University
Current assignee: Suzhou Vocational University
Priority date: 2014-07-02
Filing date: 2014-07-02
Publication date: 2014-11-12
Anticipated expiration: 2024-07-02

Abstract

The utility model relates to a ratchet wrench, which comprises a handle and a head; the head is arranged at one end of the handle; the center of the head is provided with a first through hole; the inner wall of the first through hole is evenly distributed with a plurality of The first groove; each first groove is provided with a spring; the upper part of each spring is provided with a key; the key contains two opposite and parallel vertical surfaces, and the top of the key In the shape of an arc, the central angle of the arc is not greater than 90 degrees; one end of the top of the key is tangent to the vertical surface of the key, and the other end is arranged on the other vertical surface of the key; the first A valve core is arranged in the through hole; the center of the valve core is provided with a hexagonal through hole; a plurality of second grooves are evenly distributed on the outer circumference of the valve core, and the bottom of the second groove is in contact with the key The top of the ratchet wrench is consistent so that the key can be inserted into the second groove; the nut can be tightened continuously after the nut is clamped on one side of the ratchet wrench of the utility model, and the nut can be continuously loosened after the nut is clamped after the wrench is turned over. .

Description

ratchet wrench

技术领域 technical field

本实用新型涉及一种扳手的改进，特别是一种可通过一次装夹螺母即能连续旋紧或旋松螺母的棘轮扳手。 The utility model relates to an improvement of a wrench, in particular to a ratchet wrench which can continuously tighten or loosen the nut by clamping the nut once.

背景技术 Background technique

目前的扳手，包含手柄；所述手柄的前部设置有扳手头；所述扳手头，包含第一锁紧部、第二锁紧部；所述第一锁紧部与第二锁紧部之间的距离可以调节，以使其适应不同的规格的螺母；这种扳手在使用时，先调节第一锁紧部、第二锁紧部之间的距离锁紧螺母，再旋转手柄，使螺母旋紧或旋松，但再次旋转螺母时，必须先将扳手头从螺母上取消，调节好角度后，再次套入螺母，才能旋转螺母，因而使用比较繁琐；特别是在螺母的使用空间比较狭小的情形，这种扳手可能会施展不开，而无法工作。为此，我们研发了一种可通过一次装夹螺母即能连续旋紧或旋松螺母的棘轮扳手。 The current wrench includes a handle; the front part of the handle is provided with a wrench head; the wrench head includes a first locking part and a second locking part; The distance between them can be adjusted to adapt to nuts of different specifications; when using this wrench, first adjust the distance between the first locking part and the second locking part to lock the nut, and then rotate the handle to make the nut Tighten or loosen, but when turning the nut again, the wrench head must be removed from the nut first, and after the angle is adjusted, the nut can be inserted again before the nut can be rotated, so the use is more cumbersome; especially when the space for the nut is relatively narrow In some cases, this wrench may not be able to be used and cannot work. For this reason, we have developed a ratchet wrench that can continuously tighten or loosen the nut by clamping the nut once.

实用新型内容 Utility model content

针对上述存在的技术问题，本实用新型的目的是：提出了一种可通过一次装夹螺母即能连续旋紧或旋松螺母的棘轮扳手。 In view of the above-mentioned technical problems, the purpose of this utility model is to propose a ratchet wrench which can continuously tighten or loosen the nut by clamping the nut once.

本实用新型的技术解决方案是这样实现的：棘轮扳手，包含手柄、头部；所述头部设置在手柄的一端；所述头部的中心设置有第一通孔；所述第一通孔的内壁上均布有多个第一凹槽；每个第一凹槽中均设置有弹簧；每根弹簧的上部均设置有卡键；所述卡键包含有两相对且相互平行的竖直面，所述卡键的顶部成圆弧状，其圆弧中心角不大于90度；所述卡键的顶部的一端与卡键的竖直面相切，另一端设置在卡键的另一竖直面上；所述第一通孔内设置有阀芯；所述阀芯的中心设置有六角形通孔；所述阀芯的外圆周上均布有多个第二凹槽，所述第二凹槽的底部与卡键的顶部形成一致，以便卡键能插入第二凹槽中。 The technical solution of the utility model is realized in the following way: the ratchet wrench includes a handle and a head; the head is arranged at one end of the handle; the center of the head is provided with a first through hole; the first through hole A plurality of first grooves are evenly distributed on the inner wall of the first groove; a spring is arranged in each first groove; a key is provided on the upper part of each spring; the key includes two opposite and parallel vertical On the surface, the top of the key is arc-shaped, and the central angle of the arc is not greater than 90 degrees; one end of the top of the key is tangent to the vertical surface of the key, and the other end is arranged on the other vertical surface of the key. On the straight face; a spool is arranged in the first through hole; a hexagonal through hole is arranged in the center of the spool; a plurality of second grooves are evenly distributed on the outer circumference of the spool, and the first The bottom of the second groove is consistent with the top of the key, so that the key can be inserted into the second groove.

优选的，所述第一凹槽的底部的中心均设置有第一凸起；所述第一凸起插入弹簧的底部。 Preferably, the center of the bottom of the first groove is provided with a first protrusion; the first protrusion is inserted into the bottom of the spring.

优选的，所述卡键的底部设置有第二凸起；所述第二凸起插入弹簧的顶部。 Preferably, the bottom of the key is provided with a second protrusion; the second protrusion is inserted into the top of the spring.

优选的，所述头部的两侧分别设置有盖板；所述盖板用螺钉固定在头部上。 Preferably, cover plates are respectively provided on both sides of the head; the cover plates are fixed on the head with screws.

优选的，设置第一通孔的内壁上的第一凹槽有6个；设置阀芯的外圆周上的第二凹槽有6个。 Preferably, there are six first grooves on the inner wall of the first through hole; six second grooves on the outer circumference of the valve core. the

由于上述技术方案的运用，本实用新型与现有技术相比具有下列优点： Due to the application of the above-mentioned technical solution, the utility model has the following advantages compared with the prior art:

本实用新型的棘轮扳手的一面装夹螺母后即可连续拧紧螺母，而将扳手翻转后再装夹螺母，即可连续拧松螺母；本实用新型结构简单，实用，操作方便。 The ratchet wrench of the utility model can continuously tighten the nut after clamping the nut on one side of the ratchet wrench, and then clamp the nut after turning the wrench over, and then can continuously loosen the nut; the utility model has the advantages of simple structure, practicality and convenient operation.

附图说明 Description of drawings

下面结合附图对本实用新型技术方案作进一步说明： Below in conjunction with accompanying drawing, technical scheme of the utility model is further described:

附图1为本实用新型所述的棘轮扳手的主视图； Accompanying drawing 1 is the front view of ratchet wrench described in the utility model;

附图2为本实用新型所述的棘轮扳手拧紧状态时的剖视图； Accompanying drawing 2 is the sectional view when the ratchet wrench described in the utility model tightens state;

附图3为本实用新型所述的棘轮扳手拧送状态时的剖视图； Accompanying drawing 3 is the cross-sectional view when the ratchet wrench described in the utility model twists and sends state;

其中：1、手柄；2、头部；3、第一通孔；4、第一凹槽；5、第一凸起；6、弹簧；7、卡键；8、第二凸起；9、阀芯；10、第二凹槽；11、六角形通孔；12、盖板；13、螺钉。 Among them: 1. handle; 2. head; 3. first through hole; 4. first groove; 5. first protrusion; 6. spring; 7. key; 8. second protrusion; 9. Spool; 10, second groove; 11, hexagonal through hole; 12, cover plate; 13, screw. the

具体实施方式 Detailed ways

下面结合附图来说明本实用新型。 The utility model is described below in conjunction with accompanying drawing.

如附图1-3所示为本实用新型所述的棘轮扳手，包含手柄1、头部2；所述头部2设置在手柄1的一端；所述头部的中心设置有第一通孔3；所述第一通孔3的内壁上均布有多个第一凹槽4；本实施例中，所述第一凹槽4有6个；每个第一凹槽4的底部的中心均设置有第一凸起5；每个第一凹槽4中均设置有弹簧6、所述第一凸起5插入弹簧6的底部；每根弹簧6的上部均设置有卡键7；所述卡键7包含有两相对且相互平行的竖直面，所述卡键7的顶部成圆弧状，其圆弧中心角不大于90度；所述卡键7的顶部的一端与卡键7的竖直面相切，另一端设置在卡键7的另一竖直面上；所述卡键7的底部设置有第二凸起8；所述第二凸起8插入弹簧6的顶部；所述第一通孔3内设置有阀芯9；所述阀芯9的中心设置有六角形通孔11；所述阀芯9的外圆周上均布有多个第二凹槽10，本实施例中，设置阀芯9的外圆周上的第二凹槽10有6个；所述第二凹槽10的底部与卡键7的顶部形成一致，以便卡键7能插入第二凹槽中；所述头部2的两侧分别设置有盖板12；所述盖板12用螺钉13固定在头部2上。 Shown in accompanying drawing 1-3 is the ratchet wrench described in the utility model, comprises handle 1, head 2; Said head 2 is arranged on one end of handle 1; The center of said head is provided with first through hole 3; a plurality of first grooves 4 are evenly distributed on the inner wall of the first through hole 3; in this embodiment, there are six first grooves 4; the center of the bottom of each first groove 4 All are provided with a first protrusion 5; each first groove 4 is provided with a spring 6, and the first protrusion 5 is inserted into the bottom of the spring 6; the upper part of each spring 6 is provided with a key 7; Described card key 7 comprises two opposite and mutually parallel vertical surfaces, and the top of described card key 7 is arc-shaped, and its arc center angle is not more than 90 degrees; One end of the top of described card key 7 and card key The vertical surface of 7 is tangent, and the other end is arranged on the other vertical surface of the key 7; the bottom of the key 7 is provided with a second protrusion 8; the second protrusion 8 is inserted into the top of the spring 6; The first through hole 3 is provided with a spool 9; the center of the spool 9 is provided with a hexagonal through hole 11; the outer circumference of the spool 9 is evenly distributed with a plurality of second grooves 10, this In the embodiment, there are six second grooves 10 on the outer circumference of the spool 9; the bottom of the second grooves 10 is consistent with the top of the key 7, so that the key 7 can be inserted into the second groove In the middle; the two sides of the head 2 are provided with cover plates 12 respectively; the cover plates 12 are fixed on the head 2 with screws 13 .

使用时，如附图2所示，顺时针旋转手柄1；卡键7可将力传递给阀芯9，即可拧紧螺母，当逆时针旋转手柄1时，头部2会沿阀芯9打滑，从而可以以此来调节手柄1的位置，为下一次拧紧螺母做好准备；如果需要拧松螺母时，则可将本实用新型的棘轮扳手反转过来，如附图3所示，此时，逆时针旋转手柄1；卡键7可将力传递给阀芯9，即可拧松螺母，当顺时针旋转手柄1时，头部2会沿阀芯9打滑，从而可以以此来调节手柄1的位置，为下一次拧松螺母做好准备； When in use, as shown in Figure 2, rotate the handle 1 clockwise; the key 7 can transmit the force to the valve core 9, and the nut can be tightened. When the handle 1 is rotated counterclockwise, the head 2 will slide along the valve core 9 , so that the position of the handle 1 can be adjusted to prepare for the next tightening of the nut; , rotate the handle 1 counterclockwise; the key 7 can transmit the force to the valve core 9, and then the nut can be loosened. When the handle 1 is rotated clockwise, the head 2 will slide along the valve core 9, so that the handle can be adjusted 1 position, ready for the next loosening of the nut;

以上仅是本实用新型的具体应用范例，对本实用新型的保护范围不构成任何限制。凡采用等同变换或者等效替换而形成的技术方案，均落在本实用新型权利保护范围之内。 The above are only specific application examples of the utility model, and do not constitute any limitation to the protection scope of the utility model. All technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the utility model.

Claims

1. ratchet spanner, comprises handle, head; Described head is arranged on one end of handle; It is characterized in that: the center of described head is provided with the first through hole; On the inwall of described the first through hole, be evenly equipped with multiple the first grooves; In each the first groove, be provided with spring; The top of every spring is provided with card key; Described card key includes two relatively and the vertical plane being parallel to each other, and it is circular-arc that the top of described card key becomes, and its center of arc angle is not more than 90 degree; The one end at the top of described card key and the vertical plane of card key are tangent, and the other end is arranged on another vertical plane of card key; In described the first through hole, be provided with spool; The center of described spool is provided with hexagon through hole; On the excircle of described spool, be evenly equipped with multiple the second grooves, it is consistent that the bottom of described the second groove and the top of card key form, so that card key can be inserted in the second groove.

2. ratchet spanner according to claim 1, is characterized in that: the center of the bottom of described the first groove is provided with the first projection; The bottom that described the first projection is inserted spring.

3. ratchet spanner according to claim 1 and 2, is characterized in that: the bottom of described card key is provided with the second projection; The top that described the second projection is inserted spring.

4. ratchet spanner according to claim 3, is characterized in that: the both sides of described head are respectively arranged with cover plate; Described cover plate is screwed on head.

5. ratchet spanner according to claim 4, is characterized in that: the first groove arranging on the inwall of the first through hole has 6; The second groove arranging on the excircle of spool has 6.