Electric wrench capable of detecting torque of scaffold fastener during operation

Abstract

The utility model discloses an electric wrench capable of detecting the torque of a scaffold fastener during operation, which belongs to the field of electric wrenches and comprises an electric wrench body and a torque sensor arranged on one side of the electric wrench body. The lantern ring and the electric wrench body are fixed through a clamping piece, the side wall of an output shaft of the electric wrench body is fixedly sleeved with a driving gear, the side wall of an output shaft of the torque sensor is fixedly sleeved with a driven gear, the driven gear is meshed with the driving gear, and a control screen is arranged at the top of the electric wrench body. Through the arrangement of the torque sensor, when the electric wrench operates, the driven gear is driven to rotate through the driving gear, the effect of driving the output shaft of the torque sensor to rotate is achieved, the effect of torque detection can be achieved, workers can detect and check the torque in real time conveniently, and the torque accuracy of scaffold fastener installation can be kept easily.

Description

Technical Field

[0001] The utility model relates to the field of electric wrenches, and more specifically to an electric wrench which can detect the torque of scaffold fasteners while operating. Background Art

[0002] During the construction of the fastener-type steel pipe scaffolding in the construction project, an electric wrench is usually used to rotate and position the fasteners. The torque value of the fasteners is an important part of the stability of the overall scaffolding erection.

[0003] At present, when installing fastener-type steel pipe scaffolding on construction sites, workers often use electric wrenches to reinforce fasteners based on experience, which may not ensure that the torque value of each fastener meets the specification requirements, and subsequent testing and adjustment are required, which reduces work efficiency. Therefore, in order to solve the above problems, we proposed an electric wrench that can detect the torque of scaffolding fasteners while working. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an electric wrench that can detect the torque of scaffolding fasteners while working, and adopts the following technical solutions:

[0005] An electric wrench capable of detecting the torque of a scaffold fastener while working, comprising an electric wrench body and a torque sensor arranged on one side of the electric wrench body, a collar is arranged on a side wall fixing sleeve of the torque sensor, and the collar and the electric wrench body are fixed by a clamp, a driving gear is arranged on a side wall fixing sleeve of an output shaft of the electric wrench body, a driven gear is arranged on a side wall fixing sleeve of an output shaft of the torque sensor, the driven gear is meshed with the driving gear, and a control screen is arranged on the top of the electric wrench body;

[0006] The clamping member includes a first half ring and a second half ring hinged to the side wall of the ring. The first half ring and the second half ring are symmetrically distributed on the side wall of the ring. Rubber pads are fixedly installed on the inner walls of the first half ring and the second half ring on the opposite side. A positioning and fixing component is provided between the first half ring and the second half ring away from the side of the ring.

[0007] By adopting the above technical solution, when the equipment is used, the staff places the torque sensor on the side wall of the electric wrench body, and covers it on the side wall of the electric wrench body through the first half ring and the second half ring. Then, through the cooperation of the positioning and fixing components, the first half ring and the second half ring can be fixedly spliced, and then the torque sensor can be fixedly installed, so that the driven gear and the driving gear are engaged. Then, the staff installs the fastener through the electric wrench body, the electric wrench body drives the driving gear to rotate, the driving gear drives the driven gear to rotate, and the driven gear drives the torque sensor output shaft to rotate, which can play the role of testing the torque. The data is transmitted to the control screen through electrical signals, which is convenient for the staff to view in real time, which is conducive to maintaining the accuracy of the fastener rotation torque.

[0008] The staff can connect the alarm in the prior art to the torque sensor, and then adjust the torque range through the control screen. When the torque sensor detects that the torque reaches the specified range, the alarm sounds an alarm to remind the staff to stop the operation of the electric wrench body.

[0009] Furthermore, the positioning and fixing assembly includes a support block fixedly installed on the side of the first half ring away from the collar, a clamping block is fixedly installed on the bottom end of the support block, a mounting block is fixedly installed on the side of the second half ring away from the collar, and a clamping groove matching the clamping block is provided on the top of the mounting block, a movable groove is provided on the inner wall of one side of the clamping groove, and a fixed block is slidably installed in the movable groove, a first spring is fixedly connected between the inner wall of the side opposite to the movable groove at one end of the fixed block away from the clamping block, a fixing groove matching the end opposite to the fixed block is provided on the side wall of the clamping block, a toggle block is fixedly installed on the side of the fixed block away from the second half ring, and the toggle block slides through the movable groove at the side away from the fixed block, and an ejection assembly is provided in the clamping groove.

[0010] By adopting the above technical scheme, the staff places the torque sensor on the side wall of the electric wrench body, and then sleeves the first half ring and the second half ring on the side wall of the electric wrench body to splice the first half ring and the second half ring. When the first half ring moves toward the second half ring, the block installed on the side wall of the first half ring moves into the slot opened at the top of the mounting block installed on the side wall of the second half ring. When the block moves into the slot, the block pushes the fixed block to slide into the movable slot, and the fixed block pushes the first spring to contract, and the block pushes the ejection assembly to slide to the bottom of the slot. When the block is completely engaged with the slot, the fixed block moves to the outside of the movable slot under the elastic force of the first spring, and the end of the fixed block is engaged with the fixed slot opened on the side wall of the block, which can play the role of fixing the block, and then play the role of positioning and splicing the first half ring and the second half ring, so as to achieve the effect of installing the torque sensor.

[0011] When the torque sensor needs to be disassembled, the staff pulls the fixed block to slide into the movable groove by using the toggle block, so that the end of the fixed block is disengaged from the fixed groove opened on the side wall of the card block. Then the card block pops out of the slot under the action of the ejection assembly, so that the first half ring and the second half ring are disengaged from the splicing state, thereby achieving the function of disassembling the torque sensor.

[0012] Furthermore, the fixed block is fixedly mounted with sliders at the top and bottom near one end of the first spring, and the inner walls at the top and bottom of the movable groove are provided with sliding grooves matching the sliders on the same side.

[0013] By adopting the above technical solution, when the fixed block slides in the movable groove, the fixed block slides with the sliding block in the sliding groove on the same side. The cooperation between the sliding block and the sliding groove is conducive to maintaining the sliding stability of the fixed block and helps to prevent the fixed block from leaving the movable groove.

[0014] Furthermore, the ejection assembly includes an ejection plate slidably mounted in the slot, and a second spring is fixedly connected between the bottom end of the ejection plate and the inner wall of the bottom end of the slot.

[0015] By adopting the above technical solution, when the card block slides into the card slot, the card block pushes the ejection plate to move toward the bottom of the card slot, and the ejection plate pushes the second spring to contract. When the fixed block is disengaged from the card block, the ejection plate pushes the card block to slide toward the outside of the card slot under the elastic force of the second spring, thereby assisting in the disassembly of the first half ring and the second half ring.

[0016] Furthermore, limiting blocks are fixedly installed on both sides of the ejection plate, and the inner wall of the slot is provided with limiting grooves matching the limiting blocks on the same side.

[0017] By adopting the above technical solution, when the ejector plate slides in the card slot, the ejector plate slides in the limit groove with the limit block. The cooperation between the limit block and the limit groove is conducive to maintaining the sliding stability of the ejector plate and helps to prevent the ejector plate from affecting the sliding of the fixed block.

[0018] Furthermore, it is characterized in that: two symmetrically distributed positioning blocks are fixedly installed on the side wall of the electric wrench body, and positioning holes matching the positioning blocks in the same group are opened on the opposite sides of the first half ring and the second half ring.

[0019] By adopting the above technical solution, when the staff buckles the first half ring and the second half ring on the side wall of the electric wrench body, the positioning block installed on the side wall of the electric wrench body engages with the positioning holes opened on the side walls of the first half ring and the second half ring, which plays a role in positioning and fixing the first half ring and the second half ring, which is beneficial to maintaining the stability of the splicing of the first half ring and the second half ring.

[0020] Furthermore, a plug rod is fixedly mounted on one side of the collar close to the electric wrench body, and a slot matching the plug rod is formed on the side wall of the electric wrench body.

[0021] By adopting the above technical solution, the staff places the torque sensor on the side wall of the electric wrench body, and places the plug rod installed on the side wall of the ring into the slot opened on the side wall of the electric wrench body. The plug rod and the slot are engaged to position the torque sensor, which is convenient for the staff to install later.

[0022] In summary, the utility model includes the following beneficial technical effects:

[0023] (1) In the present invention, by setting a torque sensor, when the electric wrench is running, the driving gear drives the driven gear to rotate, which drives the output shaft of the torque sensor to rotate, thereby detecting the torque, which is convenient for the staff to detect and view in real time, and is conducive to maintaining the torque accuracy of the scaffolding fastener installation.

[0024] (2) In the present invention, by setting the positioning and fixing component, the first half ring box and the second half ring are positioned and fixed, and then the torque sensor is assembled, which is convenient for the subsequent torque detection of the electric wrench body and the subsequent disassembly of the staff.

[0025] (3) In the utility model, the positioning block and the positioning hole opened on the side wall of the clamping member cooperate to position the first half ring and the second half ring, which is beneficial to maintaining the stability of the splicing of the first half ring and the second half ring. The insertion rod and the slot opened on the side wall of the electric wrench body cooperate to position and fix the torque sensor, which is beneficial to improving the accuracy of the installation of the torque sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an electric wrench capable of detecting the torque of scaffold fasteners while operating from a first perspective;

[0027] Figure 2 It is a cross-sectional view of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the second viewing angle of the utility model;

[0029] Figure 4 It is a cross-sectional view of the installation block in the utility model;

[0030] Figure 5 For this utility model Figure 4 A magnified view of middle;

[0031] Figure 6 It is an exploded view of part of the structure of the utility model.

[0032] Description of the numbers in the figure:

[0033] 1. Electric wrench body; 2. Clamping piece; 21. First half ring; 211. Support block; 212. Clamping block; 22. Second half ring; 221. Mounting block; 222. Clamping slot; 2221. Movable slot; 2222. First spring; 2223. Fixed block; 2224. Second spring; 2225. Ejector plate; 3. Ring; 4. Torque sensor; 5. Driven gear; 6. Driving gear; 7. Positioning block; 8. Insert rod. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0035] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] The following is combined with Figure 1-6 The utility model is described in further detail.

[0038] See also Figure 1-6, an electric wrench that can detect the torque of scaffold fasteners while working, including an electric wrench body 1 and a torque sensor 4 arranged on one side of the electric wrench body 1, a side wall fixing sleeve of the torque sensor 4 is provided with a collar 3, and the collar 3 and the electric wrench body 1 are fixed by a clamping piece 2, a side wall fixing sleeve of the output shaft of the electric wrench body 1 is provided with a driving gear 6, and a side wall fixing sleeve of the output shaft of the torque sensor 4 is provided with a driven gear 5, and the driven gear 5 is meshed with the driving gear 6, and a control panel is provided on the top of the electric wrench body 1. When the device is used, the staff places the torque sensor 4 on the side wall of the electric wrench body 1, and installs the torque sensor 4 on the side wall of the electric wrench body 1 through the clamping piece 2, so that the driven gear 5 is engaged with the driving gear 6. The gear 5 is meshed with the driving gear 6. Then, the staff installs the fastener through the electric wrench body 1. The electric wrench body 1 drives the driving gear 6 to rotate. The driving gear 6 drives the driven gear 5 to rotate. The driven gear 5 drives the output shaft of the torque sensor 4 to rotate, which can play a role in testing the torque. The data is transmitted to the control screen through electrical signals, which is convenient for the staff to view in real time, which is conducive to maintaining the accuracy of the fastener rotation torque. The staff can connect the alarm in the prior art with the torque sensor 4, and then adjust the torque range through the control screen. When the torque sensor 4 detects that the torque reaches the specified range, the alarm sounds an alarm to remind the staff to stop the operation of the electric wrench body 1.

[0039] The clamping member 2 includes a first half ring 21 and a second half ring 22 hinged to the side wall of the collar 3, the first half ring 21 and the second half ring 22 are symmetrically distributed on the side wall of the collar 3, and rubber pads are fixedly installed on the inner walls of the first half ring 21 and the second half ring 22 on the opposite side, and a positioning and fixing component is provided between the first half ring 21 and the second half ring 22 away from the collar 3. The positioning and fixing component includes a support block 211 fixedly installed on the side of the first half ring 21 away from the collar 3, a clamping block 212 is fixedly installed on the bottom end of the support block 211, and a mounting block 221 is fixedly installed on the side of the second half ring 22 away from the collar 3, and the mounting block A slot 222 matching the block 212 is provided at the top of 221, a movable slot 2221 is provided on an inner wall on one side of the slot 222, and a fixed block 2223 is slidably installed in the movable slot 2221, a first spring 2222 is fixedly connected between the inner wall of the fixed block 2223 on the side opposite to the movable slot 2221 and away from the end of the block 212, a fixing slot matching the end opposite to the fixing block 2223 is provided on the side wall of the block 212, a toggle block is fixedly installed on the side of the fixing block 2223 away from the second half ring 22, and the toggle block slides through the movable slot 2221 on the side away from the fixed block 2223.

[0040] The staff places the torque sensor 4 on the side wall of the electric wrench body 1, and then sleeves the first half ring 21 and the second half ring 22 on the side wall of the electric wrench body 1 to splice the first half ring 21 and the second half ring 22. When the first half ring 21 moves toward the second half ring 22, the block 212 installed on the side wall of the first half ring 21 moves into the slot 222 opened on the top of the mounting block 221 installed on the side wall of the second half ring 22. When the block 212 moves into the slot 222, the block 212 pushes the fixed block 2223 to slide into the movable slot 2221. , and the fixed block 2223 pushes the first spring 2222 to contract, and the clamping block 212 pushes the ejection assembly to slide to the bottom of the clamping slot 222. When the clamping block 212 is completely engaged with the clamping slot 222, the fixed block 2223 moves to the outside of the movable slot 2221 under the elastic force of the first spring 2222, and the end of the fixed block 2223 is engaged with the fixed slot on the side wall of the clamping block 212, which can play the role of fixing the clamping block 212, and then play the role of positioning and splicing the first half ring 21 and the second half ring 22, so as to achieve the effect of installing the torque sensor 4.

[0041] The fixed block 2223 is fixedly installed with sliding blocks at the top and bottom of one end near the first spring 2222, and the top inner wall and the bottom inner wall of the movable groove 2221 are provided with sliding grooves matching the sliding block on the same side. When the fixed block 2223 slides in the movable groove 2221, the fixed block 2223 slides in the sliding groove on the same side with the sliding block. The cooperation of the sliding block and the sliding groove is conducive to maintaining the sliding stability of the fixed block 2223 and helps to prevent the fixed block 2223 from escaping from the movable groove 2221.

[0042] An ejection assembly is provided in the slot 222, and the ejection assembly includes an ejection plate 2225 slidably installed in the slot 222, and a second spring 2224 is fixedly connected between the bottom end of the ejection plate 2225 and the inner wall of the bottom end of the slot 222. When the block 212 slides into the slot 222, the block 212 pushes the ejection plate 2225 to move toward the bottom of the slot 222, and the ejection plate 2225 pushes the second spring 2224 to contract. Limiting blocks are fixedly installed on both sides of the ejection plate 2225, and a limiting groove matching the limiting block on the same side is provided on the inner wall of the slot 222. When the ejection plate 2225 slides in the slot 222, the ejection plate 2225 slides in the limiting groove with the limiting block. The cooperation of the limiting block and the limiting groove is conducive to maintaining the sliding stability of the ejection plate 2225 and helps to prevent the ejection plate 2225 from affecting the sliding of the fixed block 2223.

[0043] When the torque sensor 4 needs to be removed, the staff pulls the fixed block 2223 to slide into the movable groove 2221 by the toggle block, so that the end of the fixed block 2223 is disengaged from the fixed groove opened on the side wall of the clamping block 212. Subsequently, the ejection plate 2225 pushes the clamping block 212 to slide to the outside of the clamping groove 222 under the elastic force of the second spring 2224, which can assist in the disassembly of the first half ring 21 and the second half ring 22, and further remove the torque sensor 4.

[0044] Two symmetrically distributed positioning blocks 7 are fixedly installed on the side wall of the electric wrench body 1, and positioning holes matching the positioning blocks 7 of the same group are opened on the opposite sides of the first half ring 21 and the second half ring 22. A plug rod 8 is fixedly installed on the side of the ring 3 close to the electric wrench body 1, and a slot matching the plug rod 8 is opened on the side wall of the electric wrench body 1. The staff places the torque sensor 4 on the side wall of the electric wrench body 1, so that the plug rod 8 installed on the side wall of the ring 3 is placed inside the slot opened in the side wall of the electric wrench body 1. Through the engagement of the plug rod 8 and the slot, the torque sensor 4 is positioned, which is convenient for the staff to install later. Subsequently, when the staff buckles the first half ring 21 and the second half ring 22 on the side wall of the electric wrench body 1, the positioning blocks 7 installed on the side wall of the electric wrench body 1 are engaged with the positioning holes opened in the side walls of the first half ring 21 and the second half ring 22, which plays a role in positioning and fixing the first half ring 21 and the second half ring 22, which is beneficial to maintaining the stability of the splicing of the first half ring 21 and the second half ring 22.

[0045] The implementation principle of the embodiment of the utility model is: when the equipment is used, the staff places the torque sensor 4 on the side wall of the electric wrench body 1, and covers the side wall of the electric wrench body 1 through the first half ring 21 and the second half ring 22. Then, through the cooperation of the positioning and fixing components, the first half ring 21 and the second half ring 22 can be fixedly spliced, and then the torque sensor 4 can be fixedly installed, so that the driven gear 5 is meshed with the driving gear 6. Then, the staff installs the fastener through the electric wrench body 1, the electric wrench body 1 drives the driving gear 6 to rotate, the driving gear 6 drives the driven gear 5 to rotate, and the driven gear 5 drives the output shaft of the torque sensor 4 to rotate, which can play a role in testing the torque. The data is transmitted to the control screen through electrical signals, which is convenient for the staff to view in real time, which is conducive to maintaining the accuracy of the fastener rotation torque.

[0046] The staff can connect the alarm in the prior art to the torque sensor 4, and then adjust the torque range through the control screen. When the torque sensor 4 detects that the torque reaches the specified range, the alarm sounds an alarm to remind the staff to stop the operation of the electric wrench body 1.

[0047] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An electric wrench capable of detecting the torque of a scaffold fastener while operating, comprising an electric wrench body (1) and a torque sensor (4) arranged on one side of the electric wrench body (1), Features: The torque sensor (4) side wall fixing sleeve is provided with a collar (3), and the collar (3) and the electric wrench body (1) are fixed by a clamp (2); the electric wrench body (1) output shaft side wall fixing sleeve is provided with a driving gear (6); the torque sensor (4) output shaft side wall fixing sleeve is provided with a driven gear (5), the driven gear (5) and the driving gear (6) are meshed; and a control panel is provided on the top of the electric wrench body (1); The clamping member (2) comprises a first half ring (21) and a second half ring (22) which are hinged to the side wall of the collar (3); the first half ring (21) and the second half ring (22) are symmetrically distributed on the side wall of the collar (3); rubber pads are fixedly installed on the inner walls of the first half ring (21) and the second half ring (22) on the opposite sides; and a positioning and fixing component is provided between the first half ring (21) and the second half ring (22) on the side away from the collar (3).

2. According to claim 1, an electric wrench capable of detecting the torque of scaffolding fasteners while operating, Features: The positioning and fixing assembly comprises a support block (211) fixedly mounted on a side of the first half ring (21) away from the collar (3); a clamping block (212) is fixedly mounted on the bottom end of the support block (211); a mounting block (221) is fixedly mounted on a side of the second half ring (22) away from the collar (3); a clamping groove (222) matching the clamping block (212) is formed at the top of the mounting block (221); an inner wall of one side of the clamping groove (222) is formed with a movable groove (2221); and a fixed block (2221) is slidably mounted in the movable groove (2221). 2223), a first spring (2222) is fixedly connected between the inner wall of the fixed block (2223) at one end away from the clamping block (212) and opposite to the movable groove (2221), a fixing groove matching the end opposite to the fixed block (2223) is opened on the side wall of the clamping block (212), a toggle block is fixedly installed on the side of the fixed block (2223) away from the second half ring (22), and the toggle block slides through the movable groove (2221) at the side away from the fixed block (2223), and an ejection assembly is provided in the clamping groove (222).

3. An electric wrench capable of detecting the torque of scaffold fasteners while operating according to claim 2, Features: The fixed block (2223) is fixedly mounted with sliding blocks at the top and bottom of one end close to the first spring (2222), and the top inner wall and the bottom inner wall of the movable groove (2221) are provided with sliding grooves matching the sliding block on the same side.

4. According to claim 2, an electric wrench capable of detecting the torque of scaffolding fasteners while operating, Features: The ejection assembly comprises an ejection plate (2225) slidably mounted in the slot (222), and a second spring (2224) is fixedly connected between the bottom end of the ejection plate (2225) and the inner wall of the bottom end of the slot (222).

5. An electric wrench capable of detecting the torque of scaffold fasteners while operating according to claim 4, Features: Limiting blocks are fixedly installed on both sides of the ejection plate (2225), and the inner wall of the clamping slot (222) is provided with a limiting slot matching the limiting block on the same side.

6. The electric wrench capable of detecting the torque of scaffold fasteners while operating according to claim 1, Features: Two symmetrically distributed positioning blocks (7) are fixedly mounted on the side wall of the electric wrench body (1); positioning holes matching the positioning blocks (7) of the same group are provided on opposite sides of the first half ring (21) and the second half ring (22).

7. An electric wrench capable of detecting the torque of scaffold fasteners while operating according to claim 1, Features: A plug rod (8) is fixedly mounted on one side of the collar (3) close to the electric wrench body (1), and a slot matching the plug rod (8) is provided on the side wall of the electric wrench body (1).

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