Fastening wrench capable of recording number of fastening turns

Abstract

The utility model relates to the technical field of wrenches, in particular to a fastening wrench capable of recording the number of fastening turns, which comprises a handle, a support block and an operating mechanism, the handle is provided with an indicating block, the support block is mounted on one side of the handle far away from a workpiece and rotatably connected with the handle, and an angle graduated scale is arranged on the peripheral surface of the support block. The indicating block abuts against the peripheral face of the angle graduated scale, the angle graduated scale is used for recording the number of fastening turns of the handle, the operating mechanism is installed on the side, close to a workpiece, of the handle and comprises an adjusting part, a limiting part and two fasteners, the adjusting part is connected with the handle, the limiting part is connected with the adjusting part, and the two fasteners are connected with the adjusting part. According to the fastening handle, the number of fastening turns of the handle can be recorded through the angle graduated scale, the situation that a workpiece is not installed in place or excessively installed is avoided, the distance between the two fastening pieces can be quantitatively adjusted through the limiting part, and the fastening handle can improve the installation effect and the installation efficiency of the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of wrench technology, and in particular to a tightening wrench with a recordable number of tightening turns. Background Technology

[0002] Stainless steel ferrules, VCR connectors, and other structures requiring rotational installation necessitate the use of tools such as wrenches. Currently, ordinary wrenches have the following shortcomings in this regard:

[0003] 1. The number of rotations required during the installation of stainless steel ferrules and VCR connectors cannot be calculated and can only be judged based on the operator's experience. This will affect the installation effect of stainless steel ferrules and VCR connectors (i.e., too few rotations will result in the stainless steel ferrules and VCR connectors not being installed properly, while too many rotations will result in the stainless steel ferrules and VCR connectors being over-installed and damaged).

[0004] 2. The dimensions of common stainless steel ferrules and VCR connectors are fixed, and ordinary wrenches cannot be adjusted accordingly. Each time, the wrench can only be clamped onto the stainless steel ferrule or VCR connector, and then the opening size can be manually adjusted to fit the stainless steel ferrule or VCR connector. This operation will affect the installation efficiency of stainless steel ferrules and VCR connectors. Utility Model Content

[0005] To address the shortcomings of existing production technologies, the applicant provides a tightening wrench with a recordable number of tightening turns. By improving the wrench structure, the number of tightening turns can be recorded and the wrench opening size can be quantitatively adjusted to improve the installation effect and efficiency of the workpiece.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A tightening wrench with a recordable number of tightening turns includes: a handle, a support block, and an operating mechanism. The handle is provided with an indicator block. The support block is installed on the side of the handle away from the workpiece and is rotatably connected to the handle. An angle scale is provided on the outer peripheral surface of the support block. The indicator block abuts against the outer peripheral surface of the angle scale. The angle scale is used to record the number of tightening turns of the handle. The operating mechanism is installed on the side of the handle close to the workpiece. The operating mechanism includes: an adjusting part, a limiting part, and two fasteners. The adjusting part is connected to the handle, the limiting part is connected to the adjusting part, and both fasteners are connected to the adjusting part. The adjusting part is used to drive the two fasteners to move relative to each other or towards each other. The limiting part is used to quantitatively adjust the distance between the two fasteners.

[0008] Therefore, the number of tightening turns of the handle can be recorded by the angle scale, which can prevent the workpiece from being installed in the wrong position or over-installed. The distance between the two fasteners can be quantitatively adjusted by the limiting part. Compared with the existing ordinary handle, this fastening handle has a simple structure and is easy to operate, so as to improve the installation effect and efficiency of the workpiece.

[0009] As a further improvement to the above technical solution: the adjusting part includes: a fixed block, a bidirectional threaded rod, and two sliders. The fixed block is connected to the handle, the bidirectional threaded rod is rotatably connected to the fixed block, and the two sliders are respectively located on both sides of the bidirectional threaded rod and threadedly connected to the bidirectional threaded rod. The fastener is connected to the slider. By rotating the bidirectional threaded rod, the relative movement or opposite movement of the two sliders is driven, so as to realize the relative movement or opposite movement of the two fasteners.

[0010] As a further improvement to the above technical solution: the adjustment part further includes a handle, one end of the bidirectional threaded rod extending to the outside of the fixed block and connected to the handle. By rotating the handle, the bidirectional threaded rod rotates. Thus, by rotating the handle, the bidirectional threaded rod rotates, causing the two sliders to move relative to each other or towards each other, thereby driving the two fasteners to move relative to each other or towards each other. In this way, the distance between the two fasteners can be adjusted, allowing the entire tightening wrench to adapt to the installation of different types of workpieces.

[0011] As a further improvement to the above technical solution: the limiting part includes: multiple first limiting grooves and a first limiting rod. The multiple first limiting grooves are all formed on the side wall of the fixing block, and are arranged in an equally spaced ring. The first limiting rod is mounted on the handle and slidably connected to it. The first limiting rod is inserted into different first limiting grooves to achieve quantitative adjustment of the distance between the two fasteners. Thus, when the first limiting rod is released from the first limiting groove, the handle can rotate to quantitatively adjust the distance between the two fasteners; when the first limiting rod is inserted into the first limiting groove, the handle cannot rotate, and the distance between the two fasteners no longer changes. In this way, the workpiece can be clamped, and the workpiece can be installed by rotating the handle.

[0012] As a further improvement to the above technical solution: the handle has a mounting groove, and a one-way rotation mechanism is embedded in the mounting groove. The one-way rotation mechanism is used to control the one-way rotation of the handle.

[0013] As a further improvement to the above technical solution: the one-way rotation mechanism includes a limiting block and a rotating block. The limiting block is installed inside the handle. The operating mechanism is connected to the limiting block. The rotating block is located inside the limiting block and is rotatably connected to the limiting block. The rotating block is connected to the support block.

[0014] As a further improvement to the above technical solution: the limiting block has a plurality of second limiting grooves on the side near the rotating block, and the plurality of second limiting grooves are distributed in a ring with equal spacing.

[0015] As a further improvement to the above technical solution: multiple limiting members are provided on the side of the rotating block near the limiting block, and the multiple limiting members are distributed in a ring with equal spacing.

[0016] As a further improvement to the above technical solution: a second limiting rod and a spring are also provided on one side of the limiting member. One end of the second limiting rod is connected to the limiting member, and the other end of the second limiting rod is inserted into the limiting member and slidably connected to the limiting member. The spring is sleeved on the second limiting rod, and both ends of the spring are connected to the limiting member and the second limiting rod, respectively. Thus, through the cooperation of the second limiting groove and the limiting member, it can be ensured that the entire tightening wrench can only rotate in one direction and cannot rotate in the opposite direction. Therefore, when recording the number of tightening turns, the entire tightening wrench will not reverse, thereby improving the recording accuracy of the number of tightening turns. Furthermore, through the cooperation of the spring and the second limiting rod, when the limiting member rotates in the direction of rotation to abut against the side wall of the second limiting groove, the limiting member can rotate relative to the rotating block, thus allowing the limiting member to smoothly reach the next second limiting groove.

[0017] As a further improvement to the above technical solution: the fastener has an inclined surface on the side away from the operating mechanism. This inclined surface allows the distance between the two fasteners to gradually decrease to a distance that matches the workpiece, thus facilitating the placement of the entire tightening wrench onto the workpiece to be installed.

[0018] The beneficial effects of this utility model are as follows:

[0019] The angle scale can record the number of tightening turns of the handle, preventing the workpiece from being installed incorrectly or excessively. The limiting part can quantitatively adjust the distance between two fasteners. Compared with existing ordinary handles, this fastening handle has a simple structure and is easy to operate, thereby improving the installation effect and efficiency of the workpiece.

[0020] This utility model also has the following advantages:

[0021] 1. This utility model allows the bidirectional threaded rod to rotate by rotating the handle, which in turn causes the two sliders to move relative to each other or towards each other, thereby driving the two fasteners to move relative to each other or towards each other. In this way, the distance between the two fasteners can be adjusted, so that the entire fastening wrench can be adapted to the installation of different types of workpieces.

[0022] 2. When the first limiting rod is released from the first limiting groove, the handle can rotate to quantitatively adjust the distance between the two fasteners; when the first limiting rod is inserted into the first limiting groove, the handle cannot rotate, and the distance between the two fasteners no longer changes. In this way, the workpiece can be clamped, and the workpiece can be installed by rotating the handle.

[0023] 3. This utility model, through the cooperation of the second limiting groove and the limiting member, ensures that the entire tightening wrench can only rotate in one direction and cannot rotate in the opposite direction. Thus, when recording the number of tightening turns, the entire tightening wrench will not reverse, thereby improving the recording accuracy of the number of tightening turns. In addition, through the cooperation of the spring and the second limiting rod, when the limiting member rotates in the direction of rotation to abut against the side wall of the second limiting groove, the limiting member can rotate relative to the rotating block, thus allowing the limiting member to smoothly reach the next second limiting groove. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of the fastening wrench of the present invention, which allows for recording the number of fastening turns.

[0025] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of a local structure at point A;

[0026] Figure 3 An exploded view of the fastening wrench of this utility model, which allows for recording the number of tightening turns.

[0027] Figure 4 This is an exploded view of the operating mechanism of this utility model;

[0028] Figure 5 This is a schematic diagram of the unidirectional rotation mechanism of this utility model;

[0029] Figure 6 This is a top view of the unidirectional rotation structure of this utility model.

[0030] Among them: 1. Handle;

[0031] 101. Indicator block; 102. Mounting slot;

[0032] 2. Support block;

[0033] 201. Angle ruler;

[0034] 3. Operating mechanism;

[0035] 4. Adjustment section;

[0036] 401. Fixing block; 402. Double-ended threaded rod; 403. Slider; 404. Handle;

[0037] 5. Limiting part;

[0038] 501, First limiting groove; 502, First limiting rod;

[0039] 6. Fasteners;

[0040] 601. Incline;

[0041] 7. One-way rotation mechanism;

[0042] 8. Limit block;

[0043] 801, Second limiting groove;

[0044] 9. Rotating block;

[0045] 901, Limiting component; 902, Second limiting rod; 903, Spring. Detailed Implementation

[0046] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0047] like Figures 1 to 6 The diagram shows the preferred embodiment of this utility model. This embodiment of the tightening wrench, capable of recording the number of tightening turns, includes: a handle 1, a support block 2, and an operating mechanism 3. The handle 1 is provided with an indicator block 101. The support block 2 is installed on the side of the handle 1 away from the workpiece and is rotatably connected to the handle 1. An angle scale 201 is provided on the outer circumferential surface of the support block 2. The indicator block 101 abuts against the outer circumferential surface of the angle scale 201, which is used to record the number of tightening turns of the handle 1. The operating mechanism 3 is installed on the side of the handle 1 close to the workpiece. The operating mechanism 3 includes: an adjusting part 4, a limiting part 5, and two fasteners 6. The adjusting part 4 is connected to the handle 1, the limiting part 5 is connected to the adjusting part 4, and both fasteners 6 are connected to the adjusting part 4. The adjusting part 4 is used to drive the two fasteners 6 to move relative to each other or towards each other, and the limiting part 5 is used to quantitatively adjust the distance between the two fasteners 6. Therefore, the number of tightening turns of the handle 1 can be recorded by the angle scale 201, which can prevent the workpiece from being installed in the wrong position or over-installed. The distance between the two fasteners 6 can be quantitatively adjusted by the limiting part 5. Compared with the existing ordinary handle 1, the fastening handle 1 has a simple structure and is easy to operate, so as to improve the installation effect and installation efficiency of the workpiece.

[0048] In other words, the workpieces to be operated in this application (i.e., stainless steel ferrules and VCR connectors) have a specific degree of tightening and several specific dimensions. During installation, the number of tightening turns and dimensions of the stainless steel ferrules and VCR connectors can be determined. Therefore, by recording the number of tightening turns of the handle 1 using the angle scale 201, the number of tightening turns of the stainless steel ferrules and VCR connectors can be recorded. This ensures that the number of rotation turns of the stainless steel ferrules and VCR connectors is neither too few (too few will result in the stainless steel ferrules and VCR connectors not being installed properly) nor too many (too many will result in the stainless steel ferrules and VCR connectors being over-installed and damaged), thereby improving the installation effect of the stainless steel ferrules and VCR connectors. The distance between the two fasteners 6 is quantitatively adjusted by the limiting part 5. In this way, the distance between the two fasteners 6 can be adjusted to a distance that matches the stainless steel ferrules and VCR connectors in one go, without having to rotate continuously for adjustment, until the two fasteners 6 clamp the stainless steel ferrules and VCR connectors to be installed, thereby improving the installation efficiency of the stainless steel ferrules and VCR connectors.

[0049] In this embodiment, the adjustment unit 4 includes: a fixed block 401, a bidirectional threaded rod 402, two sliders 403, and a handle 404. The fixed block 401 is connected to the handle 1, the bidirectional threaded rod 402 is rotatably connected to the fixed block 401, the two sliders 403 are located on both sides of the bidirectional threaded rod 402 and are threadedly connected to the bidirectional threaded rod 402; the fastener 6 is connected to the sliders 403. By rotating the bidirectional threaded rod 402, the relative movement or opposite movement of the two sliders 403 is driven, so as to realize the relative movement or opposite movement of the two fasteners 6. One end of the bidirectional threaded rod 402 extends to the outside of the fixed block 401 and is connected to the handle 404. By rotating the handle 404, the bidirectional threaded rod 402 is rotated. Therefore, by rotating the handle 404, the bidirectional threaded rod 402 is rotated, which in turn causes the two sliders 403 to move relative to each other or towards each other, thereby driving the two fasteners 6 to move relative to each other or towards each other. In this way, the distance between the two fasteners 6 can be adjusted, so that the entire fastening wrench can be adapted to the installation of different types of workpieces.

[0050] In this embodiment, the limiting part 5 includes: a plurality of first limiting grooves 501 and a first limiting rod 502. The plurality of first limiting grooves 501 are all formed on the side wall of the fixing block 401, and the plurality of first limiting grooves 501 are arranged in an equally spaced ring. The first limiting rod 502 is mounted on the handle 404 and is slidably connected to the handle 404. The first limiting rod 502 is inserted into different first limiting grooves 501 to achieve quantitative adjustment of the distance between the two fasteners 6. Thus, when the first limiting rod 502 is released from the constraint of the first limiting groove 501, the handle 404 can rotate to quantitatively adjust the distance between the two fasteners 6; when the first limiting rod 502 is inserted into the first limiting groove 501, the handle 404 cannot rotate. At this time, the distance between the two fasteners 6 no longer changes. In this way, the workpiece can be clamped, and the workpiece can be installed by rotating the handle 1.

[0051] In this embodiment, eight first limiting grooves 501 are provided, which can realize the spacing adjustment of the stainless steel ferrule and VCR connector in eight positions.

[0052] In this embodiment, the handle 1 has a mounting groove 102, and a one-way rotation mechanism 7 is embedded in the mounting groove 102. The one-way rotation mechanism 7 is used to control the one-way rotation of the handle 1.

[0053] In this embodiment, the one-way rotation mechanism 7 includes: a limiting block 8 and a rotating block 9. The limiting block 8 is installed inside the handle 1, and the operating mechanism 3 is connected to the limiting block 8. The rotating block 9 is located inside the limiting block 8 and is rotatably connected to the limiting block 8. The rotating block 9 is connected to the support block 2. Multiple second limiting grooves 801 are provided on the side of the limiting block 8 near the rotating block 9, and the multiple second limiting grooves 801 are distributed in a ring with equal spacing. Multiple limiting grooves are provided on the side of the rotating block 9 near the limiting block 8. Positioning component 901, multiple positioning components 901 are distributed in a ring with equal spacing; a second positioning rod 902 and a spring 903 are also provided on one side of the positioning component 901. One end of the second positioning rod 902 is connected to the positioning component 901, and the other end of the second positioning rod 902 is inserted into the positioning component 901 and slidably connected with the positioning component 901. The spring 903 is sleeved on the second positioning rod 902, and both ends of the spring 903 are connected to the positioning component 901 and the second positioning rod 902 respectively. Therefore, through the cooperation between the second limiting groove 801 and the limiting member 901, it can be ensured that the entire tightening wrench can only rotate in one direction and cannot rotate in the opposite direction. In this way, when recording the number of tightening turns, the entire tightening wrench will not rotate backward, thereby improving the recording accuracy of the number of tightening turns. In addition, through the cooperation between the spring 903 and the second limiting rod 902, when the limiting member 901 rotates in the rotation direction to abut against the side wall of the second limiting groove 801, the limiting member 901 can rotate relative to the rotating block 9, so that the limiting member 901 can smoothly reach the next second limiting groove 801.

[0054] In this embodiment, a slope 601 is provided on the side of the fastener 6 away from the operating mechanism 3. Thus, the slope 601 gradually reduces the distance between the two fasteners 6 to a distance that matches the workpiece, thereby facilitating the placement of the entire tightening wrench on the workpiece to be installed.

[0055] The installation process of this utility model workpiece (stainless steel ferrule, VCR connector) is as follows: First, according to the model of the workpiece to be installed, obtain the number of tightening turns required for tightening and the size of the workpiece; then, according to the size of the workpiece, control the adjusting part 4 and the limiting part 5 to adjust the distance between the two fasteners 6 to a distance that matches the workpiece; then, clamp the two fasteners 6 at both ends of the workpiece to hold the workpiece; finally, turn the handle 1 to drive the operating mechanism 3 to rotate, and tighten the workpiece. The indicator block 101 rotates with the handle 1. Each rotation of the indicator block 101 indicates one tightening turn of the workpiece. When the number of rotations of the indicator block 101 matches the number of tightening turns required for the workpiece, it indicates that the workpiece is tightened. At this time, stop turning the handle 1 and move the entire tightening wrench away from the workpiece to allow the fasteners 6 to disengage from the workpiece, thus completing the workpiece tightening operation.

[0056] In summary, this utility model can record the number of tightening turns of the handle 1 through the angle scale 201, avoiding improper or excessive installation of the workpiece. The limiting part 5 can quantitatively adjust the distance between the two fasteners 6. Compared with the existing ordinary handle 1, this fastening handle 1 has a simple structure and is easy to operate, thereby improving the installation effect and efficiency of the workpiece.

[0057] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A tightening wrench with a recordable number of tightening turns, characterized in that, include: A handle (1), wherein the handle (1) is provided with an indicator block (101); Support block (2), the support block (2) is installed on the side of the handle (1) away from the workpiece and is rotatably connected to the handle (1). An angle scale (201) is provided on the outer peripheral surface of the support block (2). The indicator block (101) abuts against the outer peripheral surface of the angle scale (201). The angle scale (201) is used to record the number of tightening turns of the handle (1). An operating mechanism (3) is mounted on the side of the handle (1) near the workpiece, and the operating mechanism (3) includes: The unit comprises an adjustment part (4), a limiting part (5), and two fasteners (6). The adjustment part (4) is connected to the handle (1), the limiting part (5) is connected to the adjustment part (4), and both fasteners (6) are connected to the adjustment part (4). The adjustment part (4) is used to drive the two fasteners (6) to move relative to each other or towards each other. The limiting part (5) is used to quantitatively adjust the distance between the two fasteners (6).

2. The tightening wrench with a recordable number of tightening turns as described in claim 1, characterized in that: The adjustment unit (4) includes: The device includes a fixed block (401), a bidirectional threaded rod (402), and two sliders (403). The fixed block (401) is connected to the handle (1), the bidirectional threaded rod (402) is rotatably connected to the fixed block (401), and the two sliders (403) are located on both sides of the bidirectional threaded rod (402) and are threadedly connected to the bidirectional threaded rod (402). The fastener (6) is connected to the slider (403). By rotating the bidirectional threaded rod (402), the relative movement or opposite movement of the two sliders (403) is driven, so as to realize the relative movement or opposite movement of the two fasteners (6).

3. The tightening wrench with a recordable number of tightening turns as described in claim 2, characterized in that: The adjustment unit (4) further includes: The handle (404) extends one end of the bidirectional threaded rod (402) to the outside of the fixed block (401) and is connected to the handle (404). By rotating the handle (404), the bidirectional threaded rod (402) is rotated.

4. The tightening wrench with a recordable number of tightening turns as described in claim 3, characterized in that: The limiting part (5) includes: Multiple first limiting grooves (501) and first limiting rods (502) are provided. The multiple first limiting grooves (501) are all opened on the side wall of the fixed block (401), and the multiple first limiting grooves (501) are arranged in an equally spaced ring. The first limiting rods (502) are installed on the handle (404) and are slidably connected to the handle (404). The first limiting rod (502) is inserted into different first limiting grooves (501) to achieve quantitative adjustment of the distance between the two fasteners (6).

5. The tightening wrench with a recordable number of tightening turns as described in claim 1, characterized in that: The handle (1) has a mounting groove (102), and a one-way rotation mechanism (7) is embedded in the mounting groove (102). The one-way rotation mechanism (7) is used to control the handle (1) to rotate in one direction.

6. The tightening wrench with a recordable number of tightening turns as described in claim 5, characterized in that: The unidirectional rotation mechanism (7) includes: The limiting block (8) and the rotating block (9) are installed inside the handle (1), the operating mechanism (3) is connected to the limiting block (8), the rotating block (9) is located inside the limiting block (8) and is rotatably connected to the limiting block (8), and the rotating block (9) is connected to the support block (2).

7. The tightening wrench with a recordable number of tightening turns as described in claim 6, characterized in that: The limiting block (8) has multiple second limiting grooves (801) on one side near the rotating block (9), and the multiple second limiting grooves (801) are distributed in a ring with equal spacing.

8. The tightening wrench with a recordable number of tightening turns as described in claim 7, characterized in that: The rotating block (9) has multiple limiting members (901) on one side near the limiting block (8), and the multiple limiting members (901) are distributed in a ring with equal spacing.

9. The tightening wrench with a recordable number of tightening turns as described in claim 8, characterized in that: A second limiting rod (902) and a spring (903) are also provided on one side of the limiting member (901). One end of the second limiting rod (902) is connected to the limiting member (901), and the other end of the second limiting rod (902) is inserted into the limiting member (901) and slidably connected to the limiting member (901). The spring (903) is sleeved on the second limiting rod (902), and both ends of the spring (903) are connected to the limiting member (901) and the second limiting rod (902) respectively.

10. The tightening wrench with a recordable number of tightening turns as described in claim 1, characterized in that: The fastener (6) has a bevel (601) on the side away from the operating mechanism (3).

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