Ratchet type torque wrench special for dentistry

Abstract

The utility model discloses a ratchet type torque wrench special for dentistry, which comprises a wrench handle, an outer sleeve is arranged in front of the wrench handle, an elastic rod is arranged below the wrench handle, a plug column is arranged at one end of the elastic rod, a scale rod is arranged in the middle of the elastic rod, and a push handle is arranged at the other end of the elastic rod. A through hole is formed in the surface of the outer sleeve, a ratchet wheel assembly is installed in the through hole and comprises a hexagonal gear, a check ring is arranged on the back face of the hexagonal gear, and a single lock toothed bar is arranged in cooperation with the hexagonal gear. The rod portion of the single lock tooth rod is sleeved with a spring, torsion transmission is carried out through the bending strength of the titanium alloy rod, accurate control over torque is guaranteed, too tight or too loose is effectively prevented, and accuracy and safety of dental surgery are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a special ratchet torque wrench for dentistry. Background Art

[0002] Among the surgical instruments used in implant surgery, the torque ratchet wrench is a basic instrument that is used very frequently. It is also an instrument that requires very high component precision and assembly accuracy.

[0003] Existing ratchet torque wrenches do not have precise control over torque; they are either too loose or too tight, and safety during surgery cannot be guaranteed. Utility Model Content

[0004] In view of the above problems, the present invention aims to provide a ratchet torque wrench specially used for dentistry.

[0005] To achieve this technical purpose, the solution of the utility model is: a ratchet torque wrench specially used for dentistry, including a wrench handle, a sleeve is provided in front of the wrench handle, an elastic rod is provided below the wrench handle, a plug is provided at one end of the elastic rod, a scale rod is provided in the middle of the elastic rod, and a push handle is provided at the other end of the elastic rod.

[0006] Preferably, a through hole is provided on the surface of the outer sleeve, a ratchet assembly is installed in the through hole, the ratchet assembly includes a hexagonal gear, a retaining ring is provided on the back of the hexagonal gear, a single-way locking tooth rod is provided in cooperation with the hexagonal gear, and the rod portion of the single-way locking tooth rod is sleeved with a spring.

[0007] Preferably, a through hole is provided inside the outer sleeve, a groove is provided at the front end of the lever handle, the head of the one-way lock tooth rod is installed in the through hole of the outer sleeve and abuts against the hexagonal gear, and the tail of the rod of the one-way lock tooth rod and the tail of the spring are installed in the groove of the lever handle.

[0008] Preferably, the outer wall of the lever handle is provided with slots, which are used to install the plug and the scale rod respectively. The surface of the scale rod is provided with a scale groove and marked with scales, and the elastic rod passes through the scale groove.

[0009] Preferably, the elastic rod is a titanium alloy rod.

[0010] The beneficial effects of the present utility model are:

[0011] Torque is transmitted through the bending strength of the elastic rod, ensuring precise control of torque, effectively preventing over-tightening or over-loosening, and ensuring the accuracy and safety of dental surgery.

[0012] The ratchet design enables the wrench to be quickly adjusted to the required angle, greatly saving operation time and improving work efficiency.

[0013] The main body of the wrench rod is made of high-strength material and is durable; the titanium alloy rod has excellent bending strength and corrosion resistance, ensuring the accuracy and stability of torque transmission.

[0014] The handle of the wrench rod conforms to the principles of ergonomics, is comfortable to hold, and does not easily cause fatigue. It can maintain stability and accuracy of operation even after long-term use.

[0015] The product surface is smooth, not easily contaminated by dirt, easy to clean and disinfect, and meets the hygiene requirements of medical devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 An exploded schematic diagram of the ratchet assembly;

[0018] Figure 3 Schematic diagram of the scale groove.

[0019] In the figure: 1, handle 2, outer sleeve 3, elastic rod 4, ratchet assembly 41, hexagonal gear 42, retaining ring 43, one-way lock gear 44, spring 5, plug 6, scale rod 61, scale groove 7, push handle. DETAILED DESCRIPTION

[0020] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0021] As shown in the figure, the specific embodiment of the present invention is a ratchet torque wrench specially used for dentistry, including a wrench handle 1, a sleeve 2 is provided in front of the wrench handle 1, an elastic rod 3 is provided below the wrench handle 1, a plug 5 is provided at one end of the elastic rod 3, a scale rod 6 is provided in the middle of the elastic rod 3, and a push handle 7 is provided at the other end of the elastic rod 3.

[0022] A through hole is provided on the surface of the outer sleeve 2, and a ratchet assembly 4 is installed in the through hole. The ratchet assembly 4 includes a hexagonal gear 41, a retaining ring 42 is provided on the back of the hexagonal gear 41, and a single-way locking tooth rod 43 is provided in cooperation with the hexagonal gear 41. The rod part of the single-way locking tooth rod 43 is sleeved with a spring 44.

[0023] A through hole is provided inside the outer sleeve 2, and a groove is provided at the front end of the lever handle 1. The head of the single-way lock tooth rod 43 is installed in the through hole of the outer sleeve 2 and abuts against the hexagonal gear 41. The tail of the rod of the single-way lock tooth rod 43 and the tail of the spring 44 are installed in the groove of the lever handle 1.

[0024] The outer wall of the lever handle 1 is provided with slots for mounting the plunger 5 and the scale rod 6 . The scale rod 6 has a scale groove 61 on its surface marked with scales, and the elastic rod 3 passes through the scale groove 61 .

[0025] The elastic rod 3 is a titanium alloy rod.

[0026] Working principle: Torque is transmitted through the bending strength of the elastic rod 3. When torque is applied to the handle, the ratchet assembly 4 transmits the torque to the elastic rod 3. The elastic rod 3 bends accordingly according to the torque value preset on the scale rod 6, thereby achieving precise torque control. When the preset torque value is reached, the wrench will send a signal or generate feedback. When the diameter of the elastic rod 3 exceeds the current range of the scale, it means that the torque used exceeds the expected usage value, reminding the doctor to stop applying torque to prevent overtightening or overloosening and improve safety.

Claims

1. A ratchet torque wrench for dentistry, characterized in that: The invention comprises a lever handle (1), a jacket (2) is arranged in front of the lever handle (1), an elastic rod (3) is arranged below the lever handle (1), a plug (5) is arranged at one end of the elastic rod (3), a scale rod (6) is arranged in the middle of the elastic rod (3), and a push handle (7) is arranged at the other end of the elastic rod (3).

2. A ratchet torque wrench for dentistry according to claim 1, characterized in that: A through hole is provided on the surface of the outer sleeve (2), a ratchet assembly (4) is installed in the through hole, the ratchet assembly (4) comprises a hexagonal gear (41), a retaining ring (42) is provided on the back of the hexagonal gear (41), a single-way locking tooth rod (43) is provided in cooperation with the hexagonal gear (41), and a spring (44) is sleeved on the rod portion of the single-way locking tooth rod (43).

3. A dental ratchet torque wrench according to claim 2, characterized in that: A through hole is provided inside the outer sleeve (2), a groove is provided at the front end of the lever handle (1), the head of the one-way locking tooth rod (43) is installed in the through hole of the outer sleeve (2) and abuts against the hexagonal gear (41), and the tail of the rod of the one-way locking tooth rod (43) and the tail of the spring (44) are installed in the groove of the lever handle (1).

4. The dental ratchet torque wrench according to claim 1, characterized in that: The outer wall of the lever handle (1) is provided with slotted holes, and the slotted holes are used to install the plug (5) and the scale rod (6) respectively. The surface of the scale rod (6) is provided with a scale groove (61) and marked with scales, and the elastic rod (3) passes through the scale groove (61).

5. The dental ratchet torque wrench according to claim 1, characterized in that: The elastic rod (3) is a titanium alloy rod.

Images