Ratchet torque wrench

Abstract

The utility model relates to the technical field of medical instrument structures, in particular to a ratchet torque wrench which comprises a wrench base body and a torque rod which extend along an axis X. The wrench base body and the torque rod are of an integrated structure. The wrench is characterized in that the head of the wrench base body is subjected to integral linear cutting to form a tool connecting handle containing cavity for containing a tool part and a pawl, the tip end of the pawl extends into the tool connecting handle containing cavity, and the tip end of the pawl is matched with the tool part inserted into the tool connecting handle containing cavity. The device has the advantages of simple structure, convenience in use, no need of disassembly, quick cleaning and disinfection, high transmission precision and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of medical device structures, in particular to a ratchet torque wrench with simple structure, convenient use, no need for disassembly and assembly, fast cleaning and disinfection, and high transmission accuracy. Background Art

[0002] As is known to all, in order to meet the surgical hygiene requirements during surgery, surgical instruments need to be sterilized before use. Ratchet wrench is a commonly used dental instrument. If the ratchet wrench structure is too complicated, it will affect its cleaning, disinfection and assembly. The ratchet structure of the ratchet wrench on the market is relatively complicated, and the process of disassembly, cleaning, disinfection and reassembly of these structures will have the risk of contamination and surgical risks. Although the application number is 2013200021511, the patent name is ratchet wrench and the application number is 2016211170689, the patent name is a new type of ratchet torque wrench, the two only fix the ratchet to the body through the pin shaft, but it still needs to be disassembled for cleaning, disinfection and reassembly. Therefore, there is still a risk of contamination, which will increase the problem of long cleaning time, and the problem of low ratchet transmission accuracy will also occur during the disassembly and reassembly process. Summary of the invention

[0003] The utility model aims to solve the above-mentioned deficiencies in the prior art and to provide a ratchet torque wrench which has a simple structure, is easy to use, does not require disassembly and assembly, is quick to clean and disinfect, and has high transmission accuracy.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A ratchet torque wrench comprises a wrench base and a torque rod extending along an axis X, wherein the wrench base and the torque rod are an integral structure, and is characterized in that the head of the wrench base is integrally wire cut to form a tool handle accommodating cavity and a pawl for accommodating a tool component, the tip of the pawl extends into the tool handle accommodating cavity, and the tip of the pawl cooperates with the tool component inserted into the tool handle accommodating cavity.

[0006] The ratchet formed by wire cutting in the utility model comprises a ratchet head and a ratchet elastic part, one end of the ratchet elastic part is connected to the wrench base, and the other end of the ratchet elastic part is integrally connected with the ratchet head.

[0007] The ratchet formed by the wire cutting of the utility model is placed in a ratchet containing cavity formed by the wire cutting and communicated with the tool handle containing cavity.

[0008] The pawl containing chamber described in the utility model comprises a pawl head accommodating chamber and a pawl elastic part accommodating chamber, one end of the pawl head accommodating chamber is open and communicated with the tool handle accommodating chamber, and a snap-in groove is provided on the other side of the pawl head accommodating chamber, one end of the pawl head extends through the opening of the pawl head accommodating chamber and extends into the tool handle accommodating chamber, and the other end of the pawl head extends into the snap-in groove, one end of the pawl elastic part of the pawl is integrally connected with the pawl head, and the other end of the pawl elastic part extends into the pawl elastic part accommodating chamber and is integrally connected with the side wall of the pawl elastic part accommodating chamber.

[0009] The tail of the wrench base of the utility model is connected to a scale element, and the tail of the torque rod is connected to a pointer indicating the scale of the scale element.

[0010] The tail of the torque rod of the utility model is connected to the scale element, and the tail of the wrench base is connected to the pointer indicating the scale of the scale element.

[0011] The tail end of the torque rod of the utility model is connected to the handle.

[0012] The utility model has the advantages of simple structure, convenient use, no need for disassembly and assembly, rapid cleaning and disinfection, high transmission accuracy, etc. due to the adoption of the above structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 yes Figure 1 main view.

[0015] Figure 3 yes Figure 2 A partial enlarged view of part A.

[0016] Figure 4 It is another structural schematic diagram of the utility model.

[0017] Figure 5 yes Figure 4 main view.

[0018] Figure 6 yes Figure 5 A partial enlarged view of part B. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] As shown in the accompanying drawings, a ratchet torque wrench comprises a wrench base 1 and a torque rod 2 extending along an axis X, wherein the wrench base 1 and the torque rod 2 are an integral structure, and is characterized in that the head of the wrench base 1 is integrally formed by wire cutting to form a tool handle accommodating cavity 3 and a pawl 4 for accommodating a tool component, the tip of the pawl 4 extends into the tool handle accommodating cavity 3, and the tip of the pawl 4 cooperates with the tool component inserted into the tool handle accommodating cavity 3.

[0021] Furthermore, the pawl 4 formed by the wire cutting comprises a pawl head 5 and a pawl elastic portion 6 , one end of the pawl elastic portion 6 is connected to the wrench base 1 , and the other end of the pawl elastic portion 6 is integrally connected to the pawl head 5 .

[0022] Furthermore, the pawl 4 formed by the wire cutting is placed in a pawl containing cavity formed by the wire cutting and connected to the tool handle accommodating cavity 3 .

[0023] Furthermore, the pawl containing chamber includes a pawl head accommodating chamber 7 and a pawl elastic part accommodating chamber 8, one end of the pawl head accommodating chamber 7 is open and connected to the tool handle accommodating chamber 3, and the other side of the pawl head accommodating chamber 7 is provided with a snap-in groove 12, one end of the pawl head 5 extends through the opening of the pawl head accommodating chamber 7 and extends into the tool handle accommodating chamber 3, and the other end of the pawl head 5 extends into the snap-in groove 12, one end of the pawl elastic part 6 of the pawl 4 is integrally connected with the pawl head 5, and the other end of the pawl elastic part 6 extends into the pawl elastic part accommodating chamber 8 and is integrally connected with the side wall of the pawl elastic part accommodating chamber 8.

[0024] Furthermore, the tail of the wrench base 1 is connected to a scale element 9 , and the tail of the torque rod 2 is connected to a pointer 10 indicating the scale of the scale element 9 .

[0025] Furthermore, the tail of the torque rod 2 is connected to the scale element 9, and the tail of the wrench base 1 is connected to the pointer 10 indicating the scale of the scale element 9.

[0026] Furthermore, the tail end of the torque rod 2 is connected to the handle 11 .

[0027] The handle accommodating cavity and the pawl 4 in the ratchet torque wrench described above are structures formed as a whole by integral wire cutting, and the pawl 4 structure is integrally formed with the wrench base 1. There is no need for disassembly and assembly operations during the entire use process, and there will be no unclean cleaning due to bacteria generated during the disassembly and assembly process. Therefore, the wrench only needs to be cleaned, and there are no redundant parts. The cleaning and disinfection speed is fast, and good transmission accuracy can be guaranteed. The transmission accuracy will not change due to the disassembly and reassembly process. Due to the adoption of the above-mentioned structure, the utility model has the advantages of simple structure, easy use, no need for disassembly and assembly, fast cleaning and disinfection, and high transmission accuracy. Example

[0028] A ratchet torque wrench, comprising a wrench base 1 and a torque rod 2 extending along an axis X, wherein the wrench base 1 and the torque rod 2 are an integral structure, wherein the head of the wrench base 1 is integrally formed by wire cutting to form a tool handle accommodating cavity 3 and a pawl 4 for accommodating a tool component, wherein the tip of the pawl 4 extends into the tool handle accommodating cavity 3, and the tip of the pawl 4 cooperates with the tool component inserted into the tool handle accommodating cavity 3, wherein the pawl 4 formed by wire cutting comprises a pawl head 5 and a pawl elastic portion 6, wherein one end of the pawl elastic portion 6 is connected to the wrench base 1, and the other end of the pawl elastic portion 6 is integrally connected to the pawl head 5, wherein the pawl 4 formed by wire cutting is placed on the wire cutting A pawl containing cavity is formed which is connected with the tool handle accommodating cavity 3, and the pawl containing cavity includes a pawl head accommodating cavity 7 and a pawl elastic portion accommodating cavity 8. One end of the pawl head accommodating cavity 7 is open and connected with the tool handle accommodating cavity 3, and the other side of the pawl head accommodating cavity 7 is provided with a clamping groove 12. One end of the pawl head 5 extends through the opening of the pawl head accommodating cavity 7 and extends into the tool handle accommodating cavity 3, and the other end of the pawl head 5 extends into the clamping groove 12. One end of the pawl elastic portion 6 of the pawl 4 is integrally connected with the pawl head 5, and the other end of the pawl elastic portion 6 extends into the pawl elastic portion accommodating cavity 8 and is integrally connected with the side wall of the pawl elastic portion accommodating cavity 8.

[0029] The wire cutting forming process of the above-mentioned pawl head accommodating chamber 7, the pawl elastic portion accommodating chamber 8, the pawl head 5, the pawl elastic portion 6 and the tool handle accommodating chamber 3 is as follows: Figure 3 As shown, taking A as the starting point, it passes through B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, and S in sequence, and cuts toward the position of the pawl 4 with point S as the end point, and then pulls out the cut part, and finally forms the pawl head accommodating cavity 7, the pawl elastic part accommodating cavity 8, the pawl head 5, the pawl elastic part 6 and the tool handle accommodating cavity 3, thereby realizing the integrated molding of the pawl 4 and the wrench base 1.

[0030] The wire cutting forming process of the above-mentioned pawl head accommodating chamber 7, the pawl elastic portion accommodating chamber 8, the pawl head 5, the pawl elastic portion 6 and the tool handle accommodating chamber 3 is as follows: Figure 6 As shown, the pawl head accommodating cavity 7, the pawl elastic portion accommodating cavity 8, the pawl head 5, the pawl elastic portion 6 and the tool handle accommodating cavity 3 are formed by wire cutting, so that the pawl 4 and the wrench base 1 are integrally formed.

[0031] There are two ways to connect the scale element 9 in the ratchet torque wrench. The first way is: the tail of the wrench base 1 is connected to the scale element 9, and the tail of the torque rod 2 is connected to the pointer 10 indicating the scale of the scale element 9 ( Figure 1 shown);

[0032] The second connection mode is: the tail of the torque rod 2 is connected to the scale element 9, and the tail of the wrench base 1 is connected to the pointer 10 indicating the scale of the scale element 9 ( Figure 4 ),

[0033] The handles 11 in the above two connection modes are both connected to the tail end of the torque rod 2 .

[0034] The ratchet torque wrench in which the pawl 4 and the wrench base 1 are integrally formed as described above can realize the function of the pawl 4 while also reducing the process of disassembly and installation during use.

[0035] The connection relationship between the above-mentioned pawl elastic part and the pawl elastic part accommodating cavity is not limited to the above-mentioned Figure 3 and Figure 6 The two forms described above are within the protection scope of this patent as long as they can achieve integrated wire cutting and the structure in which the pawl elastic part can achieve elastic deformation and reset in the pawl elastic part accommodating cavity.

Claims

1. A ratchet torque wrench, comprising a wrench base and a torque rod extending along an axis X, wherein the wrench base and the torque rod are an integrated structure, characterized in that The head of the wrench base is integrally wire cut to form a tool handle accommodating cavity and a pawl for accommodating a tool component. The tip of the pawl extends into the tool handle accommodating cavity, and the tip of the pawl cooperates with the tool component inserted into the tool handle accommodating cavity.

2. A ratchet torque wrench according to claim 1, characterized in that The pawl formed by wire cutting comprises a pawl head and a pawl elastic part, one end of the pawl elastic part is connected to the wrench base, and the other end of the pawl elastic part is integrally connected to the pawl head.

3. A ratchet torque wrench according to claim 2, characterized in that The ratchet formed by the wire cutting is placed in a ratchet containing cavity formed by the wire cutting and communicated with the tool handle containing cavity.

4. A ratchet torque wrench according to claim 3, characterized in that The pawl containing chamber includes a pawl head accommodating chamber and a pawl elastic part accommodating chamber. One end of the pawl head accommodating chamber is open and connected to the tool handle accommodating chamber. A snap-in groove is provided on the other side of the pawl head accommodating chamber. One end of the pawl head extends through the opening of the pawl head accommodating chamber and extends into the tool handle accommodating chamber, and the other end of the pawl head extends into the snap-in groove. One end of the pawl elastic part of the pawl is integrally connected with the pawl head, and the other end of the pawl elastic part extends into the pawl elastic part accommodating chamber and is integrally connected with the side wall of the pawl elastic part accommodating chamber.

5. A ratchet torque wrench according to claim 1, characterized in that The tail of the wrench base is connected to a scale element, and the tail of the torque rod is connected to a pointer indicating the scale of the scale element.

6. A ratchet torque wrench according to claim 1, characterized in that The tail of the torque rod is connected to a scale element, and the tail of the wrench base is connected to a pointer indicating the scale of the scale element.

7. A ratchet torque wrench according to claim 1, characterized in that The tail end of the torque rod is connected to the handle.

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