torque wrench

Abstract

The utility model discloses a torsion wrench relates to the technical field of assembly tools, including handle, wrench head, circuit board and display module, the wrench head is connected in the handle, and the wrench head is used for driving fastener rotation, the circuit board is connected in the handle, and the display module includes display casing and prompt lamp, the display casing is connected in the handle, and the display casing is connected with the prompt board, the most convex area of prompt board is warning area, the prompt lamp is installed in the display casing or the handle, and is connected with the circuit board electricity, and the light of prompt lamp is exposed to the outside through the warning area, and the warning area is convex in the handle and the display casing is set from the prompt board to the handle and is away from the one end of wrench head, the technical scheme provided by the utility model is convenient for observing the light information of prompt lamp on torsion wrench, and the accuracy and efficiency of operation are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of assembly tools, and in particular to a torque wrench. Background Technology

[0002] Currently widely used electronic digital torque wrenches still have room for improvement in their user-friendly design. These wrenches typically integrate an LCD screen, function buttons, and status indicator lights on the front of the handle (the side facing the user). In ideal operating conditions, the screen displays the torque value in real time, while the status indicator lights (such as monochrome or tri-color LEDs) provide a visual signal when a preset torque value is reached, which is especially important in dimly lit or noisy working environments.

[0003] However, when operators need to insert torque wrenches into narrow gaps or deep areas of mechanical structures to tighten bolts in critical connections, the wrench often needs to be operated at a specific angle (even with the handle facing upwards or tilted) to accommodate the bolt's orientation and the confined space. At this time, because there is an angle, or even near parallel, between the operator's line of sight and the front of the wrench handle, the display screen and indicator lights located on the front of the handle are completely in a blind spot. As a result, the operator cannot directly read the torque value, nor can they easily perceive the light from the indicator lights. Consequently, the operator cannot obtain real-time completion prompts and cannot accurately judge the tightening status of the bolts, thus affecting the accuracy and efficiency of the operation. Utility Model Content

[0004] The main purpose of this utility model is to provide a torque wrench that facilitates observation of the indicator light information on the torque wrench, thereby improving the accuracy and efficiency of the operation.

[0005] To achieve the above objectives, the torque wrench proposed in this utility model includes:

[0006] handle;

[0007] A wrench head, which is connected to the handle, is used to drive the fastener to rotate;

[0008] Circuit board, the circuit board being connected to the handle; and

[0009] The display module includes a display housing and an indicator light. The display housing is connected to the handle, and an indicator plate is connected to the display housing. The most protruding area of ​​the indicator plate is a warning area. The indicator light is installed on the display housing or the handle and is electrically connected to the circuit board. The light emitted by the indicator light is exposed to the outside through the warning area. The warning area protrudes from the handle and the display housing from the indicator plate to the end of the handle opposite to the wrench head.

[0010] In one embodiment, the indicator light includes a first indicator light and a second indicator light, both of which are mounted on the display housing and are disposed opposite to the warning area. The first indicator light and the second indicator light emit different colors and / or brightness.

[0011] In one embodiment, the first indicator light is provided, and is used to issue a warning message when the torque value of the wrench head on the fastener is greater than a first preset torque value; the second indicator light is provided, and the two second indicator lights are respectively provided on both sides of the first indicator light, and are used to issue a warning message when the torque value of the wrench head on the fastener is between the first preset torque value and a second preset torque value, and the warning area corresponding to the first indicator light protrudes from the warning area corresponding to the second indicator light.

[0012] In one embodiment, the display housing is provided with a mounting groove, and the indicator light is installed in the mounting groove.

[0013] In one embodiment, the indicator panel is provided to protrude outward in an arc shape.

[0014] In one embodiment, the display housing is detachably connected to the handle.

[0015] In one embodiment, the display housing has a first mounting hole, and the handle has a second mounting hole. The display housing is attached to the handle via the first mounting hole, the second mounting hole, and a screw.

[0016] In one embodiment, the handle includes a first housing and a second housing, the wrench head is mounted on the first housing, the second housing is sleeved on the first housing, and the display housing is detachably connected to the second housing.

[0017] In one embodiment, the second housing includes an integrally formed mounting section and a gripping section, the display housing is mounted on the mounting section, and the gripping section is provided with a gripping groove for easy gripping by the user.

[0018] In one embodiment, the handle further includes a rear cover that is detachably mounted on the end of the grip section opposite to the mounting section.

[0019] The torque wrench of this utility model includes a handle, a wrench head, a circuit board, and a display module. The wrench head is connected to the handle and is used to drive the fastener to rotate. The circuit board is connected to the handle. The display module includes a display housing and an indicator light. The display housing is connected to the handle and has an indicator plate. The most protruding area of ​​the indicator plate is the warning area. The indicator light is installed on the display housing or the handle and is electrically connected to the circuit board. The light emitted by the indicator light is exposed through the warning area. The warning area protrudes from the handle and the display housing from the indicator plate to the end of the handle away from the wrench head. That is, the warning area is located at the highest point of the handle from the indicator part to the end of the handle away from the wrench head. This solves the problem that the indicator light cannot be seen when using a torque wrench in some special scenarios, making it easier to observe the light information of the indicator light on the torque wrench. This allows users to more quickly and accurately judge the fastener's tightening status, thereby improving the accuracy and efficiency of the operation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of a embodiment of the torque wrench provided by this utility model;

[0022] Figure 2 for Figure 1 Exploded view;

[0023] Figure 3 for Figure 1 The diagram shows a structural schematic of the housing from one perspective.

[0024] Figure 4 for Figure 1 The diagram shows a structural schematic of the casing from another perspective;

[0025] Figure 5 for Figure 1 A structural diagram from another perspective.

[0026] Explanation of icon numbers:

[0027] 10. Handle; 11. First housing; 12. Second housing; 121. Second mounting hole; 122. Mounting section; 123. Grip section; 1231. Grip groove; 14. Rear cover; 20. Wrench head; 30. Circuit board; 41. Display housing; 411. Mounting groove; 412. First mounting hole; 42. Indication panel; 421. Warning area; 43. Display screen; 50. Sound generating device.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] Figures 1 to 5 This utility model proposes a torque wrench, comprising:

[0033] Handle 10;

[0034] A wrench head 20 is connected to the handle 10 and is used to drive the fastener to rotate.

[0035] Circuit board 30, said circuit board 30 being connected to the handle 10; and

[0036] The display module includes a display housing 41 and an indicator light. The display housing 41 is connected to the handle 10, and an indicator plate 42 is connected to the display housing 41. The most protruding area of ​​the indicator plate 42 is a warning area 421. The indicator light is installed on the display housing 41 or the handle 10 and is electrically connected to the circuit board 30. The light emitted by the indicator light is exposed to the outside through the warning area 421. The warning area 421 protrudes from the handle 10 and the display housing 41 from the indicator plate 42 to the end of the handle 10 away from the wrench head 20.

[0037] The torque wrench in this utility model includes a handle 10, a wrench head 20, a circuit board 30, and a display module. The wrench head 20 is connected to the handle 10 and is used to drive the fastener to rotate. The circuit board 30 is connected to the handle 10. The display module includes a display housing 41 and an indicator light. The display housing 41 is connected to the handle 10, and an indicator plate 42 is connected to the display housing 41. The most protruding area of ​​the indicator plate 42 is the warning area 421. The indicator light is installed on the display housing 41 or the handle 10 and is electrically connected to the circuit board 30. The light emitted by the indicator light... The line is exposed through the warning area 421. The warning area 421 protrudes from the handle 10 and the display housing 41 from the indicator plate 42 to the end of the handle 10 away from the wrench head 20. That is, the warning area 421 is located at the highest point of the handle 10 from the indicator part to the end of the handle 10 away from the wrench head 20. This solves the problem that the warning light cannot be seen when using a torque wrench in some special scenarios. It makes it easier to observe the light information of the indicator light on the torque wrench, so that users can more quickly and accurately judge the fastening status of the fasteners, thereby improving the accuracy and efficiency of the operation.

[0038] Specifically, the indicator light includes a first indicator light and a second indicator light. Both the first indicator light and the second indicator light are installed on the display housing 41 and are disposed opposite to the warning area 421. The first indicator light and the second indicator light emit different colors and / or brightness.

[0039] Furthermore, the first indicator light is provided, used to issue a warning message when the torque value of the wrench head 20 on the fastener is greater than a first preset torque value; the second indicator light is provided in two places, respectively located on both sides of the first indicator light, used to issue a warning message when the torque value of the wrench head 20 on the fastener is between the first preset torque value and a second preset torque value. The warning area 421 corresponding to the first indicator light protrudes from the warning area 421 corresponding to the second indicator light. For example, the first indicator light emits a red light to remind users that when the torque of the torque wrench on the fastener is greater than the preset torque value, it indicates that the wrench head 20 has tightened the fastener and it is inconvenient to continue tightening the fastener, so the first indicator light emits a red light to remind users; the second indicator light emits a green light to remind users that when the torque of the torque wrench on the fastener is less than or equal to the preset torque value, it reminds users to continue tightening the wrench. The first indicator light and / or the second indicator light can be constantly lit or flashing, the colors of the first indicator light and the second indicator light can be changed, and the colors of the two second indicator lights can be different. It is further important to emphasize that since the red light alert is for when the torque of the fastener exceeds a preset torque value, its importance is significant. Therefore, the position of the first indicator light corresponding to the warning area 421 should protrude beyond the position of the second indicator light corresponding to the warning area 421. Of course, in other embodiments, the position of the first indicator light corresponding to the warning area 421 should be flush with the position of the second indicator light corresponding to the warning area 421.

[0040] The first preset torque value represents the torque value when the wrench head 20 has tightened the fastener, and the second preset torque value represents the torque value close to the first preset torque value, and the second preset torque value is less than the first preset torque value. The second preset torque value can be 50%, 70%, 80%, 85%, 90%, etc. of the first preset torque value.

[0041] Furthermore, the display housing 41 is provided with a mounting groove 411, and the indicator light is installed in the mounting groove 411. By installing the indicator light in the mounting groove 411, the stability and reliability of the indicator light are improved, and the possibility of the indicator light becoming loose is reduced. In one embodiment, there are three mounting grooves 411, one for the first indicator light and two for the second indicator light. Each of the first indicator light and the second indicator light is respectively provided in one mounting groove 411, and the two second indicator lights are located on both sides of the first indicator light.

[0042] Preferably, the indicator plate 42 is arranged in an outward arc shape. Understandably, this outward arc shape allows the light emitted by the indicator light to pass directly through the convex indicator plate 42, resulting in a stronger visual representation of the indicator light for the operator, thus improving the accuracy and efficiency of the operation. Conversely, if the indicator plate 42 were concave-convex, the light emitted by the indicator light would undergo multiple refractions and reflections, leading to a weakened light and making it difficult for the operator to observe the indicator light.

[0043] In one embodiment, the indicator panel 42 is integrally formed with the display housing 41. By integrally forming the indicator panel 42 and the display housing 41, the stability and reliability of the connection between the indicator panel 42 and the display housing 41 are improved, thereby reducing the possibility of the indicator panel 42 loosening or breaking. The indicator panel 42 and the display housing 41 can be two-color injection molded. Because the indicator panel 42 needs to allow light emitted by the indicator light to pass through, it is generally made of a light-transmitting material, such as glass, acrylic, or epoxy resin.

[0044] In one embodiment, the display housing 41 is detachably connected to the handle 10. By detachably connecting the display housing 41 to the handle 10, it is easier to remove the display housing 41, thereby facilitating the replacement and maintenance of components such as the circuit board 30 and indicator lights inside the handle 10, and thus increasing the service life of the torque wrench.

[0045] Specifically, the display housing 41 is provided with a first mounting hole 412, and the handle 10 is provided with a second mounting hole 121. The display housing 41 is fastened to the handle 10 through the first mounting hole 412, the second mounting hole 121, and screws. Screw fastening is simple, reliable, and stable, thereby improving the connection strength between the display housing 41 and the handle 10 and reducing the manufacturing cost of the torque wrench. In other embodiments, one of the display housing 41 and the handle 10 is provided with a snap-fit, and the other with a snap-fit ​​hole. The display housing 41 and the handle 10 are connected by the snap-fit ​​and snap-fit ​​hole, thus eliminating the need for other auxiliary tools and improving the efficiency of disassembly and assembly of the display housing 41.

[0046] Specifically, the handle 10 includes a first housing 11 and a second housing 12. The wrench head 20 is mounted on the first housing 11, and the second housing 12 is sleeved on the first housing 11. The display housing 41 is detachably connected to the second housing 12. The first housing 11 is used to connect the wrench head 20, and the second housing 12 is used for the operator to grip. By replacing different second housings 12, different users can easily grip and use the torque wrench, thereby improving the universality and convenience of the torque wrench and enhancing the user experience.

[0047] In one embodiment, the second housing 12 includes an integrally formed mounting section 122 and a grip section 123. The display housing 41 is mounted on the mounting section 122, and the grip section 123 is provided with a grip groove 1231, which facilitates the user's grip. By providing the grip groove 1231, it is easier for the user to apply force in a predetermined direction when using the torque wrench, thereby facilitating the user's use.

[0048] Furthermore, the handle 10 also includes a rear cover 14, which is detachably mounted on the end of the grip section 123 opposite to the mounting section 122. By providing the rear cover 14, the possibility of the second housing 12 moving towards the wrench head 20 due to excessive force applied by the user when using the torque wrench is reduced, thereby improving the stability of the torque wrench. The detachable connection between the rear cover 14 and the grip section 123 can be a threaded fixation, i.e., corresponding threaded sections are provided on both the rear cover 14 and the grip section 123 to achieve a threaded connection between them. Of course, the detachable connection between the rear cover 14 and the grip section 123 can also be a snap-fit ​​connection, screw fastening, etc.

[0049] In one embodiment, the display module further includes a display screen 43, which is electrically connected to the circuit board 30. The display screen 43 is mounted on the display housing 41, and the warning area 421 protrudes from the outer surface of the display screen 43. By setting the display screen 43, the operator can observe the torque value of the torque wrench, thereby facilitating operation and improving the applicability of the torque wrench. Simultaneously, by setting the display screen 43 below the warning area 421, the display screen 43 and its emitted light are prevented from obstructing the light information emitted by the indicator light, thus facilitating observation of the indicator light information on the torque wrench and improving the accuracy and efficiency of the operation.

[0050] Understandably, in extremely confined areas, the light cues emitted by the indicator lights may be difficult for operators to observe, or the light information may be weak. Therefore, in one embodiment, the torque wrench further includes a sound-emitting device 50, which is electrically connected to the circuit board 30 and mounted on the display housing 41. By further adding the sound-emitting device 50, the torque wrench can still provide cues in extreme environments, serving as a further auxiliary function to the indicator lights. This increases the reliability of the cues, thereby improving the reliability and stability of the torque wrench, and ultimately enhancing the accuracy and efficiency of the operation.

[0051] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A torque wrench, characterized in that, include: handle; A wrench head, which is connected to the handle, is used to drive the fastener to rotate; A circuit board, the circuit board being connected to the handle; as well as The display module includes a display housing and an indicator light. The display housing is connected to the handle, and an indicator plate is connected to the display housing. The most protruding area of ​​the indicator plate is a warning area. The indicator light is installed on the display housing or the handle and is electrically connected to the circuit board. The light emitted by the indicator light is exposed to the outside through the warning area. The warning area protrudes from the handle and the display housing from the indicator plate to the end of the handle opposite to the wrench head.

2. The torque wrench as described in claim 1, characterized in that, The indicator lights include a first indicator light and a second indicator light, both of which are mounted on the display housing and positioned opposite the warning area. The first indicator light and the second indicator light emit different colors and / or brightness.

3. The torque wrench as described in claim 2, characterized in that, The first indicator light is provided, and is used to issue a warning message when the torque value of the wrench head on the fastener is greater than a first preset torque value; the second indicator light is provided, and the two second indicator lights are respectively provided on both sides of the first indicator light, and are used to issue a warning message when the torque value of the wrench head on the fastener is between the first preset torque value and a second preset torque value, and the warning area corresponding to the first indicator light protrudes from the warning area corresponding to the second indicator light.

4. The torque wrench as described in claim 1, characterized in that, The display housing is provided with a mounting slot, and the indicator light is installed in the mounting slot.

5. The torque wrench as described in claim 1, characterized in that, The indicator panel is designed to protrude outwards in an arc shape.

6. The torque wrench as described in claim 1, characterized in that, The display housing is detachably connected to the handle.

7. The torque wrench as described in claim 6, characterized in that, The display housing has a first mounting hole, and the handle has a second mounting hole. The display housing is attached to the handle through the first mounting hole, the second mounting hole, and screws.

8. The torque wrench as described in claim 6, characterized in that, The handle includes a first housing and a second housing, the wrench head is mounted on the first housing, the second housing is sleeved on the first housing, and the display housing is detachably connected to the second housing.

9. The torque wrench as described in claim 8, characterized in that, The second housing includes an integrally formed mounting section and a gripping section. The display housing is mounted on the mounting section, and the gripping section is provided with a gripping groove, which facilitates the user's gripping.

10. The torque wrench as described in claim 9, characterized in that, The handle also includes a rear cover, which is detachably mounted on the end of the grip section opposite to the mounting section.

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