Torque wrench capable of adjusting sound
By setting a rotation limiting assembly and ratchet actuator in the torque wrench, using the cooperation of small springs and steel balls to generate sound to understand the torque adjustment situation, solving the problem of difficulty in observing the torque scale in dark environments, and improving the convenience of use.
Patent Information
- Application Number
- CN202422142908.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-09-02
AI Technical Summary
In dark environments or in environments where the torque scale is inconvenient to observe, it is difficult to understand the torque adjustment situation by observing the torque scale, which leads to inconvenient use of the torque wrench.
By providing a rotation limiting assembly and a ratchet actuator in the torque wrench, a "click" sound is generated through irregular contact of the steel ball on the side wall of the main pipe by using the cooperation of the small spring and the steel ball, so as to understand the adjustment of the preset torque value without observing the scale.
In dark environments or in environments where the torque scale is inconvenient to observe, the adjustment of the preset torque value of the torque wrench can be effectively understood, which improves the convenience of use in these environments.
Smart Images
Figure CN222958494U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of torque wrenches, and particularly relates to a torque wrench for adjusting sound. Background Art
[0002] A torque wrench is a type of wrench. Among them, the mechanical sound alarm type uses the lever principle. When the torque reaches the set torque, there will be a "bang" sound of mechanical collision. After that, the wrench will become a dead end. If more force is applied, an over-force phenomenon will occur.
[0003] When tightening bolts of different materials and specifications, different torques are required. Therefore, it is necessary to adjust the preset torque of the torque wrench. By rotating the handle and the execution part relative to each other, the preset torque of the torque wrench can be adjusted.
[0004] Generally, a torque scale is set on the existing torque wrench. By observing the scale, it is convenient to understand the adjustment of the torque. However, in a dark environment or an environment where it is not convenient to observe the torque scale, it is very difficult to understand the adjustment of the torque by observing the torque scale. Therefore, it is not convenient to use. Summary of the Utility Model
[0005] The purpose of the embodiment of the utility model is to provide a torque wrench for adjusting sound, aiming at solving the problem that it is very difficult to understand the torque adjustment situation by observing the torque scale in a dark environment or an environment where it is not convenient to observe the torque scale.
[0006] The utility model is realized as follows. A torque wrench for adjusting sound includes a plastic handle, and also includes: a main pipe, a ratchet execution component and a rotation limiting component arranged on the main pipe. One end of the main pipe is rotatably connected inside the plastic handle; the rotation limiting component includes a plurality of sunk grooves annularly and evenly arranged on the side wall of the main pipe, and the rotation limiting component is used to limit the relative rotation of the plastic handle with respect to the main pipe; the ratchet execution component is used to rotate the bolt, and the rotating plastic handle adjusts the preset torque of the ratchet execution component; a placement hole is arranged on the side wall of the plastic handle, and a first steel ball and a small spring are arranged in the placement hole, and the small spring pushes the first steel ball against the side wall of the main pipe.
[0007] A further technical solution is that the rotation limiting component further includes a round hole arranged on the side wall of the plastic handle, and a second steel ball is movably connected in the round hole; a lock is movably sleeved on the plastic handle. When the inner wall of the lock contacts the second steel ball, the second steel ball is located in the sunk groove and the round hole on the side wall of the plastic handle; an annular accommodation groove is arranged on the inner wall of the lock. When the annular accommodation groove coincides with the second steel ball, the rotating plastic handle relative to the main pipe pushes the second steel ball into the annular accommodation groove and the round hole on the side wall of the plastic handle.
[0008] Further technical solution: A connecting piece is fixed at one end of the clinker handle close to the main pipe; the connecting piece is used to prevent the lock from disengaging from the end close to the main pipe; a lock spring is fixedly connected to the end of the lock away from the connecting piece, and the end of the lock spring is fixed on the clinker handle; an installation sunk groove is arranged on the side wall of the clinker handle, an elastic steel wire is arranged in the installation sunk groove, and two annular positioning grooves are arranged on the inner wall of the lock, and the elastic steel wire cooperates with the two annular positioning grooves.
[0009] Further technical solution: A secondary scale ring is fixedly connected to the end of the connecting piece away from the clinker handle, and both the secondary scale ring and the connecting piece are movably sleeved on the main pipe.
[0010] Further technical solution: The ratchet execution component includes a ratchet handle, the ratchet handle is rotationally connected in the main pipe through a snap ring pin, and a nut is fixed in the main pipe through a pin; a nut insert is slidably connected in the clinker handle, a screw rod is fixed on the nut insert, the screw rod penetrates through and is threadedly connected to the nut, a gasket is rotationally connected to the end of the nut close to the main pipe, and a main spring and a slider block are sequentially arranged between the gasket and the ratchet handle.
[0011] Further technical solution: A tail cover is pluggably connected to the end of the clinker handle away from the main pipe.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] When the rotating clinker handle drives the small spring and the first steel ball to rotate relative to the main pipe, since the small spring pushes the first steel ball against the side wall of the main pipe, when the first steel ball moves on the side wall of the main pipe, the first steel ball will frequently enter and disengage from the sunk groove, and a "click" sound will occur when the first steel ball contacts the irregular side wall of the main pipe. Thus, the adjustment situation of the preset torque value of the ratchet execution component can be understood through the sound emitted by the first steel ball when it contacts the irregular side wall of the main pipe. Compared with the prior art of observing the scale to understand the adjustment of the preset torque of the torque wrench, the present utility model can understand the adjustment situation of the preset torque of the torque wrench in a dark environment or an environment where it is not convenient to observe the torque scale, thereby facilitating the use of the torque wrench. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic structural diagram of a torque wrench with adjustable sound provided by the present utility model;
[0015] Figure 2 provided by the present utility model Figure 1 is a schematic structural diagram from a top view angle;
[0016] Figure 3 provided by the present utility model Figure 1 is a schematic diagram of the internal structure of the main pipe and the clinker handle in the present utility model;
[0017] Figure 4 For the present utility model Figure 1 Schematic structural diagram of the auxiliary scale ring and the connecting piece in it;
[0018] Figure 5 For the present utility model Figure 5 Schematic structural diagram of the auxiliary scale ring and the connecting piece from another perspective in it;
[0019] Figure 6 For the present utility model Figure 1 Schematic structural diagram of the connecting piece and the plastic handle in it;
[0020] Figure 7 For the present utility model Figure 1 Schematic internal structural diagram of the lock and the plastic handle in it;
[0021] Figure 8 For the present utility model Figure 1 Schematic structural diagram of the lock and the plastic handle from another perspective in it;
[0022] Figure 9 For the present utility model Figure 1 Schematic internal structural diagram of the lock in it;
[0023] Figure 10 For the present utility model Figure 1 Schematic structural diagram of the plastic handle and the end cap in it.
[0024] In the drawings: driving block 1, ratchet handle 2, reversing button 3, circlip pin 4, main pipe 5, sinking groove 501, auxiliary scale ring 6, positioning groove 601, positioning annular groove 602, connecting piece 7, positioning protrusion 701, elastic clamping groove 702, positioning buckle 703, positioning slot 704, lock 8, annular accommodating groove 801, annular positioning groove 802, main spring 9, plastic handle 10, installation sinking groove 1001, elastic steel wire 1002, positioning card 1003, positioning insert block 1004, positioning groove 1005, limiting groove 1006, pin 11, screw 12, nut insert 13, end cap 14, limiting buckle 1401, limiting protrusion 1402, maintenance groove 1403, nut 15, gasket 16, steel ball one 17, small spring 18, lock spring 19, steel ball two 20. Detailed implementation manners
[0025] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0026] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.
[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 and Figure 9 As shown, a torque wrench for adjusting sound is provided by an embodiment of the utility model, including a clinker handle 10, and also including: a main pipe 5, and a ratchet actuator and a rotation limiting assembly arranged on the main pipe 5, one end of the main pipe 5 is rotatably connected in the clinker handle 10; the rotation limiting assembly includes a plurality of sink grooves 501 evenly arranged in an annular manner on the side wall of the main pipe 5, and the rotation limiting assembly is used to limit the rotation of the clinker handle 10 relative to the main pipe 5; the ratchet actuator is used to rotate the bolt, and the rotating clinker handle 10 adjusts the preset torque of the ratchet actuator; a placement hole is provided on the side wall of the clinker handle 10, and a steel ball 17 and a small spring 18 are arranged in the placement hole, and the small spring 18 pushes the steel ball 17 against the side wall of the main pipe 5.
[0028] In the embodiment of the utility model, when the preset torque value of the torque wrench is adjusted, the rotation limiting component releases the restriction on the rotation of the clinker handle 10 relative to the main pipe 5, and the clinker handle 10 is rotated. The rotating clinker handle 10 adjusts the preset torque of the ratchet actuator. The rotating clinker handle 10 will also drive the small spring 18 and the steel ball 17 to rotate relative to the main pipe 5. Since the small spring 18 pushes the steel ball 17 against the side wall of the main pipe 5, when the steel ball 17 moves on the side wall of the main pipe 5, the steel ball 17 will frequently move forward. When the steel ball 17 enters and leaves the groove 501, a "click" sound is produced when it contacts the irregular side wall of the main pipe 5. Thus, the adjustment of the preset torque value of the ratchet actuator can be understood through the sound of the steel ball 17 contacting the irregular side wall of the main pipe 5. Compared with the existing method of using an observation scale to understand the adjustment of the preset torque of the torque wrench, the utility model can understand the adjustment of the preset torque of the torque wrench in a dark environment or an environment where it is inconvenient to observe the torque scale, thereby facilitating the use of the torque wrench.
[0029] like Figures 1-9As shown, as a preferred embodiment of the utility model, the rotation limiting assembly also includes a circular hole provided on the side wall of the clinker handle 10, in which a steel ball 20 is movably connected, and the diameter of the steel ball 20 is equal to the sum of the thickness of the side wall of the clinker handle 10 and the depth of the sink 501; a lock buckle 8 is movably provided on the clinker handle 10, and when the inner wall of the lock buckle 8 contacts the steel ball 20, the steel ball 20 is located in the circular hole on the side wall of the sink 501 and the clinker handle 10; the inner wall of the lock buckle 8 is provided with a There is an annular receiving groove 801, the depth of which is less than the diameter of the steel ball 20. When the annular receiving groove 801 and the steel ball 20 coincide with each other, the clinker handle 10 rotates relative to the main pipe 5, and the steel ball 20 is pushed into the annular receiving groove 801 and the circular hole on the side wall of the clinker handle 10. The diameter of the steel ball 20 is respectively greater than the thickness of the side wall of the lock buckle 8, the depth of the sinking groove 501 and the depth of the annular receiving groove 801; the end of the clinker handle 10 close to the main pipe 5 is fixed with a connecting piece 7, and the connecting piece A positioning buckle 703 and a positioning slot 704 are provided on the inner wall of the clinker handle 10. A positioning card 1003 and a positioning plug 1004 are fixed to the end of the clinker handle 10 close to the connecting member 7. The positioning plug 1004 is inserted into the positioning slot 704 to limit the relative rotation of the connecting member 7 and the clinker handle 10. The positioning card 1003 hooks the positioning buckle 703 to limit the relative distance between the connecting member 7 and the clinker handle 10. The connecting member 7 is used to limit the lock buckle 8 from being separated from the end close to the main pipe 5. ; The end of the limiting lock 8 away from the connecting piece 7 is fixedly connected to a lock spring 19, and the end of the lock spring 19 is fixed on the clinker handle 10. The side wall of the clinker handle 10 is provided with an installation groove 1001, and an elastic steel wire 1002 is provided in the installation groove 1001. There are two installation grooves 1001 and two elastic steel wires 1002. Two annular positioning grooves 802 are provided on the inner wall of the lock 8, and the elastic steel wire 1002 cooperates with the two annular positioning grooves 802.
[0030] In the embodiment of the present utility model, in the initial state, the latch spring 19 pushes the latch 8, the latch 8 abuts against the connecting member 7, the inner wall of the latch 8 contacts the second steel ball 20, the elastic wire 1002 is stuck in one of the annular positioning grooves 802, the second steel ball 20 is located in the sinking groove 501 and the round hole on the side wall of the plastic handle 10, so as to limit the relative rotation of the main pipe 5 and the plastic handle 10; pulling the latch 8 away from the main pipe 5, the latch 8 overcomes the elastic force of the latch spring 19 and moves until the elastic wire 1002 is stuck in another annular positioning groove 802, which can prevent the latch spring 19 from pushing the latch 8 to move reversely and reset. When the annular accommodating groove 801 coincides with the second steel ball 20, the plastic handle 10 rotating relative to the main pipe 5 pushes the second steel ball 20 into the annular accommodating groove 801 and the round hole on the side wall of the plastic handle 10, so as to release the limitation of the relative rotation of the main pipe 5 and the plastic handle 10; when the main pipe 5 and the plastic handle 10 are fixedly connected again, push the latch 8 reversely, and with the assistance of the elastic force of the latch spring 19, the latch 8 abuts against the connecting member 7, the inner wall of the latch 8 contacts the second steel ball 20, the inner wall of the latch 8 pushes the second steel ball 20 into the sinking groove 501 and the round hole on the side wall of the plastic handle 10, and the elastic wire 1002 is stuck in one of the installation sinking grooves 1001.
[0031] As Figures 1-5 shown, as a preferred embodiment of the present utility model, a secondary scale ring 6 is fixedly connected to one end of the connecting member 7 away from the plastic handle 10. The secondary scale ring 6 and the connecting member 7 are both movably sleeved on the main pipe 5. A positioning groove 601 and a positioning annular groove 602 are arranged on the inner wall of the secondary scale ring 6. A positioning protrusion 701 and an elastic clamping groove 702 are arranged on the side wall of the connecting member 7 close to the secondary scale ring 6. The positioning protrusion 701 is inserted into the positioning groove 601 to limit the relative rotation of the secondary scale ring 6 and the connecting member 7, and the elastic clamping groove 702 is stuck in the positioning annular groove 602 to limit the relative separation of the secondary scale ring 6 and the connecting member 7.
[0032] In the embodiment of the present utility model, a torsion scale can be arranged on the side wall of the secondary scale ring 6 or the main pipe 5. When adjusting the preset torsion value of the torque wrench, the rotating plastic handle 10 drives the connecting member 7 to rotate, and the connecting member 7 drives the secondary scale ring 6 to rotate. When the secondary scale ring 6 rotates relative to the main pipe 5, observe the change of the preset torsion value of the torque wrench.
[0033] As Figures 1-3As shown, as a preferred embodiment of the present utility model, the ratchet execution component includes a ratchet handle 2, the ratchet handle 2 is rotatably connected in the main pipe 5 through a circlip pin 4, and a nut 15 is fixed in the main pipe 5 through a pin 11; a nut insert 13 is slidably connected in the clinker handle 10, a screw 12 is fixed on the nut insert 13, the screw 12 penetrates and is threadedly connected in the nut 15, a gasket 16 is rotatably connected to one end of the nut 15 close to the main pipe 5, and a main spring 9 and a slider block are sequentially arranged between the gasket 16 and the ratchet handle 2. Driving blocks 1 and reversing buttons 3 are respectively installed at both ends of the ratchet handle 2, and the driving block 1 can be connected to sleeves of various specifications.
[0034] In the embodiment of the present utility model, the internal structure of the ratchet handle 2 and the structure between the ratchet handle 2 and the main spring 9 both adopt existing technologies, and the present utility model will not describe them in detail. By changing the compression degree of the main spring 9, the preset torque value of the ratchet handle 2 is adjusted; when adjusting the ratchet handle 2 and the preset torque value, rotate the clinker handle 10, the clinker handle 10 drives the nut insert 13 to rotate, the nut insert 13 drives the screw 12 to rotate, and the rotating screw 12 moves on the nut 15 by means of screw transmission, thereby adjusting the compression amount of the main spring 9 by the screw 12. When the rotating screw 12 moves relative to the nut 15, the screw 12 drives the nut insert 13 to move in the clinker handle 10. The mating cross-section of the nut insert 13 and the inner wall of the clinker handle 10 is a regular polygon, and the nut insert 13 can only move in the clinker handle 10 and cannot rotate.
[0035] As Figure 10 As shown, as a preferred embodiment of the present utility model, a tail cover 14 is pluggably connected to one end of the clinker handle 10 away from the main pipe 5. A positioning groove 1005 and a limiting groove 1006 are provided at one end of the clinker handle 10 away from the main pipe 5. A limiting buckle 1401 and a limiting protrusion 1402 are provided at one end of the tail cover 14 close to the clinker handle 10. The limiting buckle 1401 hooks the positioning groove 1005 to limit the tail cover 14 from moving away from the clinker handle 10. The limiting protrusion 1402 is inserted into the limiting groove 1006 to limit the rotation of the tail cover 14 on the clinker handle 10. A maintenance groove 1403 is provided on the clinker handle 10.
[0036] In the embodiment of the present utility model, the tail cover 14 can be pried open by inserting a tool into the maintenance groove 1403 to repair the inside of the clinker handle 10.
[0037] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A torque wrench for adjusting sound, comprising a clinker handle, characterized in that: Also includes: A main pipe, and a ratchet actuator and a rotation limiting assembly provided on the main pipe, one end of the main pipe being rotatably connected in the clinker handle; The rotation limiting assembly includes a plurality of evenly arranged annular grooves on the side wall of the main pipe, and the rotation limiting assembly is used to limit the rotation of the clinker handle relative to the main pipe; The ratchet actuator is used to rotate the bolt, and the rotating clinker handle adjusts the preset torque of the ratchet actuator; A placement hole is arranged on the side wall of the clinker handle, a steel ball 1 and a small spring are arranged in the placement hole, and the small spring pushes the steel ball 1 to press against the side wall of the main pipe.
2. The torque wrench for adjusting sound according to claim 1, characterized in that: The rotation limiting assembly also includes a round hole provided on the side wall of the clinker handle, and a second steel ball is movably connected in the round hole; The movable sleeve on the clinker handle is provided with a lock buckle, and when the inner wall of the lock buckle contacts the second steel ball, the second steel ball is located in the circular holes on the sink and the side wall of the clinker handle; An annular receiving groove is arranged on the inner wall of the lock buckle. When the annular receiving groove and the second steel ball overlap, the clinker handle rotates relative to the main pipe to push the second steel ball into the annular receiving groove and the circular hole on the side wall of the clinker handle.
3. The torque wrench for adjusting sound according to claim 2, characterized in that: A connecting piece is fixed to one end of the clinker handle close to the main pipe; The connecting piece is used to limit the lock buckle from being disengaged from the end close to the main pipe; One end of the limiting lock away from the connecting piece is fixedly connected to a lock spring, and the end of the lock spring is fixed on the clinker handle; The side wall of the clinker handle is provided with a mounting groove, an elastic steel wire is provided in the mounting groove, and two annular positioning grooves are provided on the inner wall of the lock buckle, and the elastic steel wire cooperates with the two annular positioning grooves.
4. The sound-adjustable torque wrench according to claim 3, characterized in that: The end of the connecting piece away from the clinker handle is fixedly connected with a secondary scale ring, and the secondary scale ring and the connecting piece are movably sleeved on the main pipe.
5. The sound-adjustable torque wrench according to claim 1, characterized in that: The ratchet actuator comprises a ratchet handle, the ratchet handle is rotatably connected to the main pipe via a snap pin, and a nut is fixed to the main pipe via a pin; A nut insert is slidably connected in the clinker handle, a screw is fixed on the nut insert, the screw passes through and is threadedly connected in the nut, a gasket is rotatably connected at one end of the nut close to the main pipe, and a main spring and a slider block are sequentially arranged between the gasket and the ratchet handle.
6. The torque wrench for adjusting sound according to claim 1, characterized in that: The end of the clinker handle away from the main pipe is plug-in connected with a tail cover.