CN2569979Y - Structural improvement of one-way ratchet wrench - Google Patents

Abstract

The utility model relates to an improved structure of a one-way ratchet wrench, which is mainly characterized in that a matching block of the prior one-way ratchet wrench is improved, and the prior device is in a freely-arranged state, so that one side of the matching block is contacted with a ratchet surface of a ratchet wheel under the ratchet motion state, thereby influencing the smooth operation of the ratchet wheel; therefore, the utility model discloses correspond the tip of ratchet at the cooperation piece, the shaping has the concave structure of gomphosis, makes C type buckle can see through the gomphosis concave and the gomphosis of cooperation piece looks leans on to, and makes the cooperation piece keep being located the location, like this, can solve the defect that the cooperation piece interferes with the ratchet function, makes its in-service use needs that accord with one-way ratchet spanner.

Description

Structural improvement of one-way ratchet wrench

technical field

The utility model relates to a structural improvement of a one-way ratchet wrench. Specifically, the utility model is aimed at the matching block in the ratchet structure, and carries out the positioning design of the matching block to prevent the matching block from hindering the operation of the ratchet.

Background technique

In the hand tool industry, the ratchet wrench is one of the most commonly used hand tools. It has the advantages of time-saving and labor-saving operation, and is widely used; among them, the one-way ratchet wrench, in particular, has the advantages of simplified components and strong force. With many basic advantages such as high strength, low failure rate, and low price, it has become a dedicated researcher in the hand tool industry;

The existing one-way ratchet wrench, as shown in Figure 1 and Figure 2 (taken from the bulletin No. 443181), is usually formed with a setting groove 11 on the head of the wrench 10, so that it can be set for the ratchet 12, and in the setting groove 11 A setting space 111 is excavated on one side, so that it can be used for the configuration of components such as the clamping tooth block 13, the matching block 14, and the spring 15; wherein, the setting space 111 is usually milled into a slightly larger space shape, so that It is beneficial to the assembly of each component, and then the matching block 14 is arranged on the side of the clamping tooth block 13 as a restriction on the removal of the components (in addition, the clamping tooth block will jump during the use of the wrench, and the matching block can be used as a clamping tooth blocks);

It is worth noting that the matching block 14 of the existing one-way ratchet wrench is in a free setting mode, that is to say, the matching block 14 can move freely to a predetermined degree in the installation space 111; however, the matching block 14 can The structure of free movement will cause the situation that one side of the mating block 14 is in contact with the ratchet surface of the ratchet 12 when the ratchet 12 is in motion, and the state where the mating block 14 is in contact with the ratchet 12 will hinder the movement of the ratchet 12. Shortcomings of smooth operation (ratchet does not work smoothly);

It is worth mentioning that, as shown in Figure 2, the mating block 14 is subjected to the force of the spring 15, and the mating block 14 abuts against the ratchet tooth surface of the ratchet 12, especially when the ratchet 12 retracts and reverses, the mating block 14 and the ratchet 12 is more tightly fit, which will cause the ratchet to fail to operate smoothly;

After the above description, it can be understood that the structural design of the existing one-way ratchet wrench is not perfect, but there is a defect that the mating block hinders the operation of the ratchet, which urgently needs to be improved;

Utility model content

The main purpose of this utility model is to provide an improved one-way ratchet wrench structure. At the end of the mating block corresponding to the ratchet, a fitting concave structure is formed, so that the C-shaped buckle can be connected with the mating block through the fitting recess. The mating abuts to keep the mating block in position, so that the defect of the mating block interfering with the operation of the ratchet can be solved, making it meet the actual use requirements of the one-way ratchet wrench.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

An improved structure of a one-way ratchet wrench, which mainly includes:

The wrench is equipped with a ratchet wheel in the head setting groove, and is fastened between the ratchet wheel and the setting groove with a C-shaped buckle. A setting space is formed on one side of the setting groove, and a locking tooth is arranged in the setting space. Block, a matching block and spring, the clamping tooth block is located at one side of the setting space, and it can engage with the ratchet through the spring, the matching block is located at the other side of the setting space, and it corresponds to the the side of the bottom edge of the C-shaped buckle;

It is characterized in that: at the end of the mating block corresponding to the ratchet, a fitting concave structure is formed, so that the C-shaped clasp can fit and abut against the fitting block through the fitting recess, so that the fitting block can be kept in position.

The beneficial effect of the utility model is that: when the operation is implemented, a fitting concave structure is formed at the end of the mating block corresponding to the ratchet, so that the C-shaped buckle can fit and abut against the mating block through the fitting recess, The matching block is kept at a fixed position, so that the existing defects of the interference of the matching block and the operation of the ratchet can be solved.

Description of drawings

Fig. 1 is an exploded perspective view of an existing one-way ratchet wrench.

Fig. 2 is the sectional view of existing one-way ratchet wrench.

Fig. 3 is the exploded perspective view of the utility model.

Fig. 4 is the combined sectional view of the utility model.

Fig. 5 is a sectional view of the moving state of the clamping tooth block of the present utility model.

Fig. 6 is the exploded perspective view of another embodiment of the present utility model.

Fig. 7 is the combined state sectional view of Fig. 6.

Figure number part:

10 wrench 11 setting slot

111 setting space 12 ratchets

13 clamping tooth block 14 mating block

15 springs

20 wrench 21 setting slot

211 ring concave 22 setting space

221 setting 222 spring

223 top holding block 30 ratchet

301 ratchet 302 ring concave

40C buckle 50 mating block

501 matching groove 51 fitting concave

52 fitting pieces 60 clamping tooth blocks

601 matching groove 61 clamping teeth

62 notches

Detailed ways

For the utility model to achieve the above-mentioned purpose, the technology, means and other functions adopted, now give two preferred embodiments and cooperate with the drawings to describe in detail as follows. It is believed that the purpose, characteristics and other advantages of the utility model can be obtained through the embodiments Specific and in-depth understanding; please refer to Figure 3, as shown in Figure 4, the structure improvement of a one-way ratchet wrench provided by the embodiment of the utility model is mainly aimed at improving the structure of the matching block 50 located in the head of the wrench 20 Design; Wherein: the first embodiment:

The wrench 20 is equipped with a ratchet 30 in the groove 21 of the head, and a ring recess 211 is formed on the inner edge of the groove 21, and a ratchet 301 and a ring recess 302 are formed on the outer edge of the ratchet wheel 30. 40 is fastened to the ring recesses 302, 211 of the ratchet 30 and the setting groove 21 to restrict the ratchet 30 from moving out of the setting groove 21. On the side of the head of the wrench 20 corresponding to the ratchet 30, a setting space 22 is concavely formed. In the setting space 22 There is a mating block 50 and a clamping tooth block 60 inside. The clamping gear 60 is formed with a clamping tooth 61 and a notch 62 structure. The clamping gear 60 can pass through the clamping tooth 61 and the ratchet of the ratchet 30 301 are meshed with each other; a setting recess 221 is formed on one side of the setting space 22, and a spring 222 is used to cooperate with the holding block 223 to set it inside, and through the elastic force of the spring 222, it pushes against the holding block 223 and the clamping tooth block 60 The notches 62 are abutted against each other, so that the clamping tooth block 60 can be locked or idly rotated with the ratchet 30; It can abut against the notch 62 of the clamping tooth block 60 through the supporting surface, and the spring 222 is sleeved through the sleeve rod;

It is worth noting that the utility model is characterized in that the mating block 50 corresponds to the end of the ratchet 30, and is formed with a fitting concave 51 structure, so that the C-shaped buckle 40 can fit and abut against the fitting concave 51, so that the mating Block 50 remains in position;

After the above description, it can be seen that the utility model is mainly formed with a snap-in structure on the upper end side of the mating block 50, so that after the mating block 50 is assembled in the installation space 22, it can be locked through the engagement of the C-shaped buckle 40. Keep the matching block 50 in position; it is worth noting that after the matching block 50 is kept in position, the matching block 50 will not be in contact with the ratchet 301 surface of the ratchet 30, even if the ratchet 30 and the clamping tooth block 60 carry out the locking of the wrench 20. Turning operation, the mating block 50 will not contact the ratchet 301 of the ratchet 30 (as shown in Figure 5);

Another embodiment is listed below for illustration:

The matching form of the matching block 50, the spring 222 and the clamping tooth block 60 in the utility model can also be shown in Fig. Slots 501, 601, so that the spring 222 can be firmly arranged therebetween (so that the whole spring has a deflection of a predetermined angle), and a fitting piece 52 is extended laterally on the upper end surface of the matching block 50, and the side edges of the fitting piece 52 are arranged side by side. There is a fitting concave 51 structure, so that the C-shaped buckle 40 can be embedded with the matching card, so as to form another fitting positioning structure of the matching block 50 of the one-way ratchet 30 structure;

Wherein, the mating piece 52 extended on the mating block 50 can greatly increase the mating area of the mating block 50 and the C-shaped buckle 40 , thereby increasing the stability of the structure.

Claims (4)

1. A structural improvement of a one-way ratchet wrench, which mainly includes: The wrench is equipped with a ratchet wheel in the head setting groove, and is fastened between the ratchet wheel and the setting groove with a C-shaped buckle. A setting space is formed on one side of the setting groove, and a locking tooth is arranged in the setting space. Block, a matching block and spring, the clamping tooth block is located at one side of the setting space, and it can engage with the ratchet through the spring, the matching block is located at the other side of the setting space, and it corresponds to the the side of the bottom edge of the C-shaped buckle; It is characterized in that: at the end of the mating block corresponding to the ratchet, a fitting recess structure is formed so that the C-shaped buckle can fit and lean against the fitting block through the fitting recess, so that the fitting block can be kept in position. 2. The structural improvement of one-way ratchet wrench according to claim 1, characterized in that: the clamping tooth block can be formed with clamping teeth so that the clamping gear block can mesh with the ratchet teeth of the ratchet through the clamping teeth And the concave structure; and in the setting space, it can be formed so that the spring can be arranged in it with the top holding block, and the top holding block can be pushed against the concave of the clamping tooth block through the elastic force of the spring, so that the clamping tooth The block can engage with the setting recess of the ratchet. 3. The structural improvement of the one-way ratchet wrench according to claim 2, characterized in that the holding block can be shaped to have a holding surface at one end and a sleeve rod at the other end, through the holding surface and the clamping teeth The recesses of the blocks abut against each other, and the spring is sheathed through the sleeve rod. 4. The structural improvement of the one-way ratchet wrench according to claim 1, characterized in that: a corresponding matching groove can be provided on the side of the matching block and the clamping tooth block so that the spring can be stably arranged therebetween, and on the matching block A fitting piece is extended laterally on the end face, and a fitting concave structure is arranged on the side edge of the fitting piece, and a C-shaped buckle is embedded with a card to form a matching block fitting positioning structure of a one-way ratchet structure.

Images