Digital display electronic force limiting torque wrench

Abstract

The utility model relates to the technical field of electronic torque wrenches, and discloses a digital display electronic force-limiting torque wrench which comprises a convenient replacement mechanism, a holding mechanism and a digital display mechanism, the convenient replacement mechanism is arranged at one end of the digital display mechanism, the holding mechanism is arranged at the other end of the digital display mechanism, the convenient replacement mechanism comprises a connecting cylinder, and the connecting cylinder is connected with the holding mechanism. A spring bottom plate is fixedly connected to one end of the interior of the connecting cylinder, a rotating base plate is fixedly connected to one end of the spring bottom plate, a through groove is fixedly connected to one end of the connecting cylinder, and abutting grooves are formed in the two sides of the end face of one side of the through groove. According to the spanner, the clamping block is inserted into the connecting cylinder and abuts against the rotating base plate, the base plate is pressed to enable the spring bottom plate to contract, space is provided for rotation of the clamping block, then the clamping block is rotated by 90 degrees to complete first-time fixing, and finally rapid installation of the spanner head is achieved through threaded connection. The dismounting process is reverse, and the working efficiency and the practicability of the wrench are improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic torque wrench technology, and in particular to a digital display electronic torque limiting wrench. Background Technology

[0002] A digital electronic torque limiter wrench is a precision tool that converts applied torque into a digital display using a built-in torque sensor, allowing users to accurately read and preset torque values. It features a torque limiting function; when the set torque is reached, the wrench signals and limits further force to prevent overtightening, ensuring the assembly quality of fasteners such as bolts and nuts. It is widely used in the automotive, machinery manufacturing, and repair industries.

[0003] However, some digital electronic torque limiters cannot replace other types of wrench heads. Even if the wrench head can be replaced, it is difficult to replace it conveniently. It takes a long time to replace the wrench head and tighten it, thus wasting manpower and working time. This problem reduces the practicality of the wrench.

[0004] Therefore, those skilled in the art have provided digital display electronic torque limiter wrenches to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a digital electronic torque limiter wrench. The wrench is operated by inserting a locking block at one end of the wrench head into the connecting cylinder along the shape of the through-slot opening until the locking block abuts against the rotating base. Then, pressing down on the base causes the spring plate to retract, providing space for the locking block to rotate. The locking block is then rotated 90 degrees clockwise against the rotating base. The wrench head is then lifted, and tension is used to engage the locking block into the abutment groove, completing the first fixing. Finally, the threaded rod on the outer wall of the connecting cylinder is rotated, forming a threaded connection between the threaded rod and the wrench head. This allows for quick installation of the wrench head. The disassembly process is the reverse, improving work efficiency and enhancing the wrench's practicality.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A digital display electronic torque limiter wrench includes a convenient replacement mechanism, a gripping mechanism, and a digital display mechanism. One end of the digital display mechanism is equipped with the convenient replacement mechanism, and the other end is equipped with the gripping mechanism. The convenient replacement mechanism includes a connecting cylinder. A spring base plate is fixedly connected to one end of the connecting cylinder, and a rotating base plate is fixedly connected to one end of the spring base plate. A through groove is fixedly connected to one end of the connecting cylinder, and abutment grooves are formed on both sides of one end face of the through groove. A wrench head is engaged with one end of the connecting cylinder, and a threaded hole is formed on one side of the outer wall of the wrench head. A locking block is fixedly connected to one end of the wrench head, and a threaded rod is threadedly connected to one side of the outer wall of the connecting cylinder.

[0008] Through the above technical solution, the wrench head is inserted into the connecting cylinder along the shape of the through groove opening until the wrench head abuts against the rotating base. Then, the base is pressed down to cause the spring base plate to retract, providing space for the wrench head to rotate. The wrench head is then rotated 90 degrees clockwise against the rotating base. The wrench head is then lifted, and the tension is used to push the wrench head into the abutment groove, completing the first fixing. Then, the threaded rod on the outer wall of the connecting cylinder is rotated to form a threaded connection between the threaded rod and the wrench head. This achieves quick installation of the wrench head. The disassembly process is the reverse, which improves work efficiency and enhances the practicality of the wrench.

[0009] Furthermore, the gripping mechanism includes a connecting rod, with fixing grooves on both sides of the outer wall of the connecting rod. A first fixing ring is fixedly connected to one end of the outer wall of the connecting rod. Handles are rotatably connected to both sides of the outer wall of the first fixing ring. Rubber pads are fixedly connected to one side of the outer wall of each of the two handles. Fixing blocks are fixedly connected to one side of the outer wall of each of the two handles. Buffer springs are fixedly connected to one side of the outer wall of each of the two handles. A second fixing ring is fixedly connected to one end of each of the two buffer springs.

[0010] Through the above technical solution, the wrench uses the first fixing ring as a rotation fulcrum to fix the two handles to both sides of the connecting rod, while the second fixing ring serves as the pressure point for the buffer spring, connecting the buffer spring to the handle. When using the wrench, the hand grips both handles, and the grips clamping together causes the buffer spring to be stressed and react on the palm, making the palm and handle fit more closely. The rubber pads on the handles prevent the palm from being bumped by the handles, making the grip more comfortable. The fixing blocks prevent the buffer spring from being stressed too much and causing problems, and also make the grip more stable. As a result, the operator can apply force more smoothly when using the wrench, the user experience is more comfortable, and the practicality of the wrench is improved.

[0011] Furthermore, the digital display mechanism includes a digital display body, a sensor is provided at one end of the digital display body, and a display panel is provided on one side end face of the digital display body;

[0012] Through the above technical solution, this setting enables the wrench to have an electronic display function, allowing workers to better control the force when operating the wrench.

[0013] Furthermore, the connecting cylinder is fixedly connected to the sensor;

[0014] Through the above technical solution, this design improves the overall strength of the wrench and enhances the stability of the wrench head.

[0015] Furthermore, when the spring base plate is not under pressure, it has already brought the rotating base plate against one end face of the through groove, and the groove depth of the abutment groove is only half that of the through groove;

[0016] Through the above technical solution, this setting enables the locking block to contact the rotating chassis in a timely manner and has sufficient rotation space, and it can also maintain a certain degree of stability after contact.

[0017] Furthermore, the height of the threaded rod is consistent with the height of the threaded hole after the wrench head is fixed;

[0018] The above technical solution ensures that the wrench head will not detach from the connecting cylinder due to spring compression when subjected to impact or vertical pressure.

[0019] Furthermore, one end of the connecting rod is provided with an electrical compartment, the interior of which is equipped with a battery, and one end of the connecting rod is provided with a rear cover;

[0020] Through the above technical solution, this setting ensures that the digital display component of the wrench has sufficient power supply.

[0021] Furthermore, the diameter of the first fixing ring is larger than the diameter of the second fixing ring;

[0022] The above technical solution allows the two grips to have space for the compression of the buffer springs, thus making the grip more comfortable.

[0023] This utility model has the following beneficial effects:

[0024] 1. The digital display electronic torque limiting wrench proposed in this utility model involves inserting a locking block at one end of the wrench head into the connecting cylinder along the shape of the through groove until the locking block abuts against the rotating base. Then, pressing down on the base causes the spring base plate to retract, providing space for the locking block to rotate. The locking block is then rotated 90 degrees clockwise against the rotating base. The wrench head is then lifted, and the tension is used to push the locking block into the abutment groove, completing the first fixing. Subsequently, the threaded rod on the outer wall of the connecting cylinder is rotated to form a threaded connection between the threaded rod and the wrench head, thereby achieving rapid installation of the wrench head. The disassembly process is the reverse, which improves work efficiency and enhances the practicality of the wrench.

[0025] 2. The digital display electronic torque limiter wrench proposed in this utility model uses a first fixed ring as a rotation fulcrum to fix two handles to both sides of the connecting rod, while the second fixed ring serves as a pressure point for the buffer spring, connecting the buffer spring to the handle. When using the wrench, the hand grips both handles, and the grips clamping down causes the buffer spring to be stressed and react on the palm, making the palm and handle fit more closely. The rubber pads on the handles prevent the palm from being hit by the handles, making the grip more comfortable. The fixed blocks prevent the buffer spring from being over-stressed and causing problems, and also make the grip more stable. As a result, the operator can apply force more smoothly when using the wrench, the user experience is more comfortable, and the practicality of the wrench is improved. Attached Figure Description

[0026] Figure 1 This is an isometric view of the digital display electronic torque limiting wrench proposed in this utility model.

[0027] Figure 2 This is an overall unfolded view of the digital display electronic torque limiting wrench proposed in this utility model;

[0028] Figure 3 This is a front view of the digital display electronic torque limiting wrench proposed in this utility model;

[0029] Figure 4 A diagram showing the convenient replacement mechanism of the digital display electronic torque limiter wrench proposed in this utility model;

[0030] Figure 5 This is a diagram showing the unfolded gripping mechanism of the digital display electronic torque limiter wrench proposed in this utility model.

[0031] Legend:

[0032] 1. Convenient replacement mechanism; 101. Connecting cylinder; 102. Spring base plate; 103. Rotating chassis; 104. Through groove; 105. Abutment groove; 106. Wrench head; 107. Threaded hole; 108. Snap-fit ​​block; 109. Threaded rod; 2. Grip mechanism; 201. Connecting rod; 202. Fixing groove; 203. Battery compartment; 204. Battery; 205. Rear cover; 206. First fixing ring; 207. Handle; 208. Rubber pad; 209. Fixing block; 210. Buffer spring; 211. Second fixing ring; 3. Digital display mechanism; 301. Digital display body; 302. Sensor; 303. Display panel. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Reference Figure 1-3 One specific embodiment provided by this utility model:

[0035] A digital display electronic torque limiting wrench includes a convenient replacement mechanism 1, a gripping mechanism 2, and a digital display mechanism 3. The convenient replacement mechanism 1 is located at one end of the digital display mechanism 3, and the gripping mechanism 2 is located at the other end. The convenient replacement mechanism 1 includes a connecting cylinder 101. A spring base plate 102 is fixedly connected to one end of the connecting cylinder 101, and a rotating base plate 103 is fixedly connected to one end of the spring base plate 102. A through groove 104 is fixedly connected to one end of the connecting cylinder 101. Abutment grooves 105 are provided on both sides of one end face of the through groove 104. A wrench head 106 is engaged with one end of the connecting cylinder 101. A threaded hole 107 is provided on one side of the outer wall of the wrench head 106. A locking block 108 is fixedly connected to one end of the wrench head 106. A threaded rod 109 is threadedly connected to one side of the outer wall of the connecting cylinder 101. By inserting the locking block 108 at one end of the wrench head 106 into the connecting cylinder 101 along the opening shape of the through groove 104 until the locking block 108 abuts against the rotating base 103, and then pressing down on the base 103 causes the spring base plate 102 to retract, providing space for the locking block 108 to rotate. Then, the locking block 108 is pressed against the rotating base 103 and rotated 90 degrees clockwise in any direction. Then, the wrench head 106 is lifted until the spring base plate 102 uses tension to push the locking block 108 into the abutment groove 105, completing the first fixing. Then, the threaded rod 109 provided on the outer wall of the connecting cylinder 101 is rotated so that the threaded rod 109 and the wrench head 106 form a threaded connection. This achieves quick installation of the wrench head 106. The disassembly process is the reverse, which improves work efficiency and enhances the practicality of the wrench.

[0036] Reference Figure 3-5The gripping mechanism 2 includes a connecting rod 201. Fixing grooves 202 are provided on both sides of the outer wall of the connecting rod 201. A first fixing ring 206 is fixedly connected to one end of the outer wall of the connecting rod 201. Handles 207 are rotatably connected to both sides of the outer wall of the first fixing ring 206. Rubber pads 208 and fixing blocks 209 are fixedly connected to one side of the outer wall of each of the two handles 207. Buffer springs 210 are fixedly connected to one side of the outer wall of each of the two handles 207. A second fixing ring 211 is fixedly connected to one end of each of the two buffer springs 210. The wrench uses the first fixing ring 206 as a fulcrum to fix the two handles 207 in place. The connecting rod 201 has two sides, and the second fixing ring 211 serves as the pressure point for the buffer spring 210, connecting the buffer spring 210 to the handle 207. When using the wrench, the hand holds the two handles 207. The grips 207 clamp the buffer spring 210, which is then subjected to force and reacts to the palm, making the palm fit the handle more closely. The rubber pad 208 on the handle prevents the palm from being bumped by the handle 207, making the grip more comfortable. The fixing block 209 prevents the buffer spring 210 from being subjected to excessive force and causes problems, and also makes the grip more stable. As a result, the operator can exert force more smoothly when using the wrench, the user experience is more comfortable, and the practicality of the wrench is improved.

[0037] The digital display mechanism 3 includes a digital display body 301, a sensor 302 is provided at one end of the digital display body 301, and a display panel 303 is provided on one side of the digital display body 301. This configuration enables the wrench to have an electronic display function, allowing the operator to better control the force when operating the wrench.

[0038] The connecting cylinder 101 is fixedly connected to the sensor 302, which improves the overall strength of the wrench and enhances the stability of the wrench head 106.

[0039] When not under pressure, the spring base plate 102 has already abutted the rotating base 103 against one end face of the through groove 104. The groove depth of the abutting groove 105 is only half that of the through groove 104. This setting allows the locking block 108 to contact the rotating base 103 in time and have enough rotation space, and can also maintain a certain stability after abutting.

[0040] The height of the threaded rod 109 is consistent with the height of the threaded hole 107 after the wrench head 106 is fixed. This setting ensures that the wrench head 106 will not detach from the connecting sleeve 101 due to spring compression when subjected to impact or vertical pressure.

[0041] One end of the connecting rod 201 is provided with a power compartment 203, and a battery 204 is installed inside the power compartment 203. One end of the connecting rod 201 is provided with a rear cover 205. This arrangement allows the digital display component of the wrench to have sufficient power supply.

[0042] The diameter of the first retaining ring 206 is larger than the diameter of the second retaining ring 211. This arrangement allows the two grips 207 to have space for the cushioning spring 210 to compress and cushion, thus making the hand grip more comfortable.

[0043] Working principle: The wrench inserts the locking block 108 at one end of the wrench head 106 into the connecting cylinder 101 along the opening shape of the through groove 104 until the locking block 108 abuts against the rotating base 103. Then, pressing down on the base 103 causes the spring base plate 102 to retract, providing space for the locking block 108 to rotate. The locking block 108 is then rotated 90 degrees clockwise against the rotating base 103. The wrench head 106 is then lifted until the spring base plate 102 uses tension to engage the locking block 108 into the abutment groove 105, completing the first fixing. Then, the threaded rod 109 on the outer wall of the connecting cylinder 101 is rotated, causing the threaded rod 109 to form a threaded connection with the wrench head 106, thus achieving… The quick installation and disassembly process of the wrench head 106 is the reverse. The wrench uses the first retaining ring 206 as a pivot point to fix the two handles 207 to both sides of the connecting rod 201. The second retaining ring 211 serves as the pressure point for the buffer spring 210, connecting the buffer spring 210 to the handles 207. When using the wrench, the hand holds the two handles 207. The grips 207 clamp the buffer spring 210, which is then subjected to force and reacts to the palm, making the palm fit the handle more closely. The rubber pads 208 on the handles prevent the palm from being bumped by the handles 207, making the grip more comfortable. The fixing block 209 prevents the buffer spring 210 from being subjected to excessive force and causes problems, and also makes the grip more stable.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A digital display electronic torque limiter wrench, comprising a convenient replacement mechanism (1), a gripping mechanism (2), and a digital display mechanism (3), characterized in that: One end of the digital display mechanism (3) is provided with a convenient replacement mechanism (1), and the other end of the digital display mechanism (3) is provided with a gripping mechanism (2). The convenient replacement mechanism (1) includes a connecting cylinder (101). One end of the connecting cylinder (101) is fixedly connected to a spring base plate (102). One end of the spring base plate (102) is fixedly connected to a rotating base plate (103). One end of the connecting cylinder (101) is fixedly connected to a through groove (104). Both sides of one end face of the through groove (104) are provided with abutment grooves (105). One end of the connecting cylinder (101) is engaged with a wrench head (106). One side of the outer wall of the wrench head (106) is provided with a threaded hole (107). One end of the wrench head (106) is fixedly connected to a snap-fit ​​block (108). One side of the outer wall of the connecting cylinder (101) is threadedly connected with a threaded rod (109).

2. The digital display electronic torque limiting wrench according to claim 1, characterized in that: The gripping mechanism (2) includes a connecting rod (201). The connecting rod (201) has a fixing groove (202) on both sides of its outer wall. A first fixing ring (206) is fixedly connected to one end of the outer wall of the connecting rod (201). A handle (207) is rotatably connected to both sides of the outer wall of the first fixing ring (206). A rubber pad (208) is fixedly connected to one side of the outer wall of each of the two handles (207). A fixing block (209) is fixedly connected to one side of the outer wall of each of the two handles (207). A buffer spring (210) is fixedly connected to one side of the outer wall of each of the two handles (207). A second fixing ring (211) is fixedly connected to one end of each of the two buffer springs (210).

3. The digital display electronic torque limiting wrench according to claim 1, characterized in that: The digital display mechanism (3) includes a digital display body (301), a sensor (302) is provided at one end of the digital display body (301), and a display panel (303) is provided on one side end face of the digital display body (301).

4. The digital display electronic torque limiting wrench according to claim 1, characterized in that: The connecting cylinder (101) is fixedly connected to the sensor (302).

5. The digital display electronic torque limiting wrench according to claim 1, characterized in that: When not under pressure, the spring base plate (102) has already brought the rotating base plate (103) against one end face of the through groove (104), and the groove depth of the abutment groove (105) is only half that of the through groove (104).

6. The digital display electronic torque limiting wrench according to claim 1, characterized in that: The height of the threaded rod (109) is consistent with the height of the threaded hole (107) after the wrench head (106) is fixed.

7. The digital display electronic torque limiting wrench according to claim 2, characterized in that: One end of the connecting rod (201) is provided with an electric compartment (203), and a battery (204) is provided inside the electric compartment (203). One end of the connecting rod (201) is provided with a back cover (205).

8. The digital display electronic torque limiting wrench according to claim 2, characterized in that: The diameter of the first fixing ring (206) is larger than the diameter of the second fixing ring (211).

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