Self-priming constant torque device suitable for narrow space

Abstract

The application discloses a self-suction fixed-torque device suitable for narrow space and relates to the technical field of clamping tools, and aims to solve the technical problem that in the prior art, when manually tightening nuts in narrow space, the tightening degrees of the nuts are different, which affects the installation process of the device. The self-suction fixed-torque device comprises a base plate, a motor and a transmission gear assembly. The output end of the transmission gear assembly is an insulating adsorption gear, and the insulating adsorption gear is used for adsorbing nuts to be installed. The transmission gear assembly is driven by the motor to drive the insulating adsorption gear to rotate and complete the installation of the nuts. The transmission gear assembly is arranged at the working end of the base plate, can be extended into the narrow space to complete the installation of the nuts, is simple to operate, is driven by the motor, the tightening degrees of the nuts are the same, and the installation process is ensured.

Description

Technical Field

[0001] This invention relates to the field of clamping tools, and more particularly to a self-priming constant torque device suitable for use in confined spaces. Background Technology

[0002] Many existing devices require limited installation space, and existing wrenches cannot be used to install nuts in such confined spaces.

[0003] In the current operation, operators manually tighten the nuts to complete the installation. Manual tightening of nuts is not only inefficient, but also results in inconsistent tightening of each nut, which affects the installation process of the device.

[0004] Therefore, providing a self-priming constant torque device suitable for narrow spaces to complete the installation of nuts in confined spaces is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] Based on the above analysis, the present invention aims to provide a self-priming constant torque device suitable for narrow spaces, in order to solve the technical problem in the prior art that in narrow spaces, operators need to manually tighten the nuts, which cannot guarantee the tightness of the nuts and affects the installation process.

[0006] The objective of this invention is mainly achieved through the following technical solutions:

[0007] This invention provides a self-priming constant torque device suitable for narrow spaces, comprising a base plate, a motor, and a transmission gear assembly; the base plate includes a non-working end and a working end that can extend into the narrow space; the transmission gear assembly is fixed on the working end and rotates under the drive of the motor; the output end of the transmission gear assembly is an insulated adsorption gear, which is used to adsorb the nut to be installed.

[0008] Furthermore, it also includes a cover plate, which is disposed opposite to the substrate; the transmission gear assembly is disposed between the cover plate and the substrate.

[0009] Furthermore, the cover plate has a through hole that matches the insulating adsorption gear.

[0010] Furthermore, the size of the through hole is larger than the size of the nut.

[0011] Furthermore, it also includes a support pad disposed between the substrate and the cover plate.

[0012] Furthermore, the transmission gear assembly also includes a drive gear, a transmission gear, and a limiting gear.

[0013] Furthermore, the drive gear is disposed at the output end of the motor.

[0014] Furthermore, the transmission gear meshes between the drive gear and the insulating adsorption gear.

[0015] Furthermore, the number of the limiting gears is two.

[0016] Furthermore, it also includes a battery, which is electrically connected to the motor.

[0017] Furthermore, it also includes a nut assembly mounted on the cover plate; the nut assembly includes a housing, a pushing part, and a rotating part; the housing is a cuboid structure with one open end, and the housing has a receiving space for accommodating nuts, with multiple nuts arranged linearly within the receiving space; a pushing part is provided at one end of the receiving cavity opposite to the opening, the pushing part including a first spring and a push plate, one end of the first spring being disposed on the end face of the receiving cavity opposite to the opening, and the other end of the first spring being disposed on one end face of the push plate; the other end face of the push plate abuts against the nuts disposed in the receiving space; the rotating part includes a rotating shaft, a rotating wheel, an inner ring, and an outer ring. The enclosure comprises a second spring, a wedge, and a toggle lever; the rotating shaft is vertically disposed on the lower end face of the housing, and the rotating wheel is sleeved on the rotating shaft; the rotating wheel drives the rotating shaft to rotate; the inner ring is sleeved on the rotating shaft and rotates with the rotating shaft, and the upper end face of the inner ring is provided with a sliding groove, which is arranged along the radial direction of the inner ring; the second spring is disposed in the sliding groove, one end of the second spring is disposed on the rotating shaft, and the other end of the second spring is disposed on the wedge; the outer ring is sleeved on the inner ring, and the inner wall of the outer ring is a wedge-shaped groove that matches the wedge; the toggle lever is disposed on the outer ring, and the two toggle levers are arranged at a 90° angle.

[0018] A slider is provided at the lower end of the box.

[0019] The cover plate has a groove at a position corresponding to the slider;

[0020] A transmission rod is provided on the cover plate, and the transmission rod is located near the working end; when the box reciprocates on the slide, the transmission rod is located on the movement path of the rotating wheel; the rotating wheel is provided with a first thread, and the transmission rod is provided with a second thread that matches the first thread, and the transmission rod meshes with the rotating wheel.

[0021] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0022] (1) The self-priming constant torque device for narrow spaces provided by the present invention, during use, adsorbs the nut to be installed onto the insulated adsorption gear; the working end is inserted into the narrow space of the nut to be installed, the motor is started, the motor drives the transmission gear assembly to rotate, the insulated adsorption gear rotates, and the nut rotates with the insulated adsorption gear, thus installing the nut into the narrow space of the device. This embodiment is assembled from simple parts, with a simple structure, convenient operation, and low manufacturing cost, and can complete the tightening of the nut with a constant torque without the aid of complex special equipment.

[0023] (2) The self-priming constant torque device for narrow spaces provided by the present invention has a nut assembly assembly on the cover plate. After the nut is installed, the box is pushed and the rotating part rotates under the action of the transmission rod. As the actuating rod rotates with the outer ring, it pushes the nut in the box to the through hole position of the cover plate and is attracted to the insulated adsorption gear under the attraction of the magnet, so as to install the second nut. The operator does not need to repeatedly pick up and install the nut. The nut assembly can be completed by pushing the box. The operation is simple and multiple nuts can be installed at the same time.

[0024] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0026] Figure 1 This is a schematic diagram of the structure of the self-priming constant torque device suitable for narrow spaces provided in Embodiment 1 of the present invention;

[0027] Figure 2 This is a schematic diagram of the transmission gear assembly in the self-priming constant torque device suitable for narrow spaces provided in Embodiment 1 of the present invention;

[0028] Figure 3 This is one of the structural schematic diagrams of the transmission gear assembly in the self-priming constant torque device suitable for narrow spaces provided in Embodiment 2 of the present invention;

[0029] Figure 4 This is the second schematic diagram of the transmission gear assembly in the self-priming constant torque device suitable for narrow spaces provided in Embodiment 2 of the present invention;

[0030] Figure 5 This is one of the structural schematic diagrams of the rotating part in the self-priming constant torque device suitable for narrow spaces provided in Embodiment 2 of the present invention;

[0031] Figure 6 This is the second schematic diagram of the rotating part in the self-priming constant torque device suitable for narrow spaces provided in Embodiment 2 of the present invention;

[0032] Figure 7 This is one of the structural schematic diagrams of the transmission gear assembly in the self-priming constant torque device suitable for narrow spaces provided in Embodiment 3 of the present invention;

[0033] Figure 8 This is the second schematic diagram of the transmission gear assembly in the self-priming constant torque device suitable for narrow spaces provided in Embodiment 3 of the present invention.

[0034] Figure label:

[0035] 1-Baseboard; 2-Motor; 21-Output shaft; 3-Transmission gear assembly; 31-Insulated adsorption gear; 311-Strong magnet; 32-Drive gear; 33-Transmission gear; 34-Limit gear; 4-Cover plate; 41-Through hole; 42-Slide groove; 43-Transmission rod; 44-Rack; 5-Support pad; 6-Battery; 7-Nut assembly assembly; 71-Box; 711-Baffle; 712-Rotating shaft; 713-Gear; 72-Pushing part; 721-First spring; 722-Push plate; 73-Rotating part; 731-Rotating shaft; 732-Rotating wheel; 733-Inner ring; 734-Outer ring; 735-Second spring; 736-Wedge block; 737-Actuating rod; 8-First bearing; 81-First groove; 9-Connecting shaft; 91-Matching block. Detailed Implementation

[0036] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of the present invention and are used together with the invention to illustrate the principles of the invention.

[0037] Example 1

[0038] This embodiment provides a self-priming constant torque device suitable for confined spaces. See [link to documentation]. Figures 1 to 2 The system includes a base plate 1, a motor 2, and a transmission gear assembly 3. The base plate 1 includes a non-working end and a working end that can extend into a narrow space. The transmission gear assembly 3 is fixed on the working end and is disposed at the output end of the motor 2. The output end of the transmission gear assembly 3 is an insulated adsorption gear 31, which is used to adsorb the nut to be installed.

[0039] A ring of strong magnets 311 is bonded to the upper end surface of the insulating adsorption gear 31, and the thickness of the strong magnets 311 is preferably 1 mm.

[0040] The self-priming torque-controlled device for confined spaces described in this embodiment involves adsorbing the nut to be installed onto the insulated adsorption gear 31. The working end is then inserted into the confined space containing the nut. The motor 2 is started, driving the transmission gear assembly 3 to rotate, which in turn rotates the insulated adsorption gear 31. The nut rotates with the insulated adsorption gear 31, thus installing the nut onto the device within the confined space. This embodiment is assembled from simple components, featuring a simple structure, convenient operation, and low manufacturing cost. It can achieve constant torque tightening of nuts without the need for complex specialized equipment.

[0041] The self-priming constant torque device in this embodiment also includes a cover plate 4, which is disposed opposite to the base plate 1; the transmission gear assembly 3 is disposed between the cover plate 4 and the base plate 1.

[0042] The cover plate 4 is fixedly connected to the base plate 1 by a fastener, and the transmission gear assembly 3 is disposed between the cover plate 4 and the base plate 1. The distance between the cover plate 4 and the base plate 1 is sufficient to allow the transmission gear assembly 3 to rotate.

[0043] In this embodiment, the cover plate 4 has a through hole 41, which matches the insulating adsorption gear 31.

[0044] The nut to be installed is mounted onto the insulated adsorption gear 31 through the through hole 41. During operation, the nut is placed onto the insulated adsorption gear 31 through the through hole 41, allowing for installation even in confined spaces; the operation is simple and quick.

[0045] In this embodiment, the size of the through hole 41 is larger than the size of the nut.

[0046] In this embodiment, a support pad 5 is also included, which is disposed between the substrate 1 and the cover plate 4.

[0047] The thickness of the support plate 5 is equal to the thickness of the transmission gear assembly 3, or the thickness of the support plate 5 is slightly larger than the thickness of the transmission gear assembly 3, to meet the rotation requirements of the transmission gear assembly 3.

[0048] In this embodiment, the transmission gear assembly 3 further includes a drive gear 32, a transmission gear 33, and a limiting gear 34.

[0049] The drive gear 32 is located at the output end of the motor 2. The motor 2 drives the drive gear 32 to rotate, and the drive gear 32 drives the transmission gear 33 to rotate. The transmission gear 33 meshes with the insulating adsorption gear 31, and the transmission gear 33 drives the insulating adsorption gear 31 to rotate. The insulating adsorption gear 31 drives the nut to be installed to rotate, thereby realizing the installation of the nut. The drive gear 32, the transmission gear 33, and the limiting gear 34 are fixed between the base plate 1 and the cover plate 4. The insulating adsorption gear 31 is engaged between the transmission gear 33 and the limiting gear 34. There are two limiting gears 34. The two limiting gears 34 and the transmission gear 33 form a triangular fixing area, which firmly fixes the insulating adsorption gear 31 between the limiting gear 34 and the transmission gear 33, and the fixing relationship is stable.

[0050] Example 2

[0051] The self-priming constant torque device suitable for confined spaces described in this embodiment is referred to... Figures 3 to 6 Based on Embodiment 1, it further includes a nut assembly 7 disposed on the cover plate 4; the nut assembly 7 includes a housing 71, a pushing part 72, and a rotating part 73; to better demonstrate the internal mechanism of the nut assembly 7, Figure 3 The box body 71 does not have a top surface. Figure 4 The box shown has an upper cover.

[0052] The box 71 is a cuboid structure with one open end. The box 71 has a space for accommodating nuts, and multiple nuts are arranged within this space. A pushing part 72 is provided at one end of the accommodating cavity opposite to the opening. The pushing part 72 includes a first spring 721 and a push plate 722. One end of the first spring 721 is located on the end face of the accommodating cavity opposite to the opening, and the other end is located on one end face of the push plate 722. The other end face of the push plate 722 abuts against the nuts arranged in the accommodating space. The box 71 serves as a storage device for spare nuts, and its size can be selected according to actual usage needs. The nuts can be arranged linearly within the accommodating space. When a spare nut is discharged from the opening, the first spring 721 pushes the push plate 722, which advances the candidate nuts to fill the gap. As long as there are spare nuts in the box, i.e., at the opening of the box 71, there is a spare nut that can be used at any time.

[0053] The rotating part 73 includes a rotating shaft 731, a rotating wheel 732, an inner ring 733, an outer ring 734, a second spring 735, a wedge block 736, and a lever 737, as shown below. Figure 5 and Figure 6As shown, the rotating shaft 731 is vertically arranged on the lower end surface inside the box 71. The rotating wheel 732 is sleeved on the rotating shaft 731, and the rotating shaft 731 rotates with the rotating wheel 732. The inner ring 733 is sleeved on the rotating shaft 731, and the inner ring 733 is located above the rotating wheel 732. The inner ring 733 rotates with the rotating shaft 731. The upper end surface of the inner ring 733 is provided with a sliding groove, which is arranged along the radial direction of the inner ring 733. The second spring 735 is provided... Within the groove, one end of the second spring 735 is mounted on the rotating shaft 731, and the other end of the second spring 735 is mounted on the wedge block 736; the outer ring 734 is fitted onto the inner ring 733, and the inner wall of the outer ring 734 is a wedge-shaped groove that matches the wedge block 736; the actuating rod 737 is mounted on the outer ring 734, and two adjacent actuating rods 737 are arranged at a 90° angle, and the space between the two actuating rods 737 forms a space for clamping the nut.

[0054] When the inner ring 733 rotates forward, the second spring is in an uncompressed state, and the wedge block 736 is matched and engaged in the wedge groove. During forward rotation, the wedge block 736 pushes against the wall of the wedge groove, and the wedge block 736 drives the outer ring 734 to rotate. When the box moves towards the working end, the inner ring 733 rotates forward, and the inner ring 733 can drive the outer ring 734 to rotate. The actuating rod 737 actuates the nut inside the box as the outer ring rotates. When the inner ring 733 rotates in the reverse direction... The wedge 736 cannot be locked in the wedge groove. The inclined surface of the wedge 736 and the inclined surface of the wedge groove are inclined surfaces that can move relative to each other. The wedge 736 slides along the groove wall of the wedge groove. The wedge 736 cannot drive the outer ring 734 to rotate, that is, the outer ring 734 cannot rotate in the opposite direction with the inner ring 733. When the box body moves away from the working end, the inner ring 733 rotates in the opposite direction under the drive of the rotating shaft 731. The inner ring cannot drive the outer ring to rotate, the actuating rod does not rotate, and the position of the nut inside the box body remains unchanged. By controlling the movement direction of the box body, the effect of whether to equip the nut inside the box body to the working end of the substrate is achieved.

[0055] In this embodiment, four actuating rods 737 are provided on the outer ring 734, forming four nut clamping spaces. When not rotating, the space clamping the nut is designated as the first space, and the spaces are designated as the second, third, and fourth spaces in a clockwise direction. When the inner ring 733 and the outer ring 734 rotate synchronously, the outer ring 734 drives the actuating rods 737 to rotate. The nut clamped between the two actuating rods 737 is discharged from the opening of the box 71 in accordance with the rotation of the actuating rods 737. That is, the first space rotates to the fourth space, and the original second space becomes the first space. At the same time, the push plate pushes the nut in the box to move towards the opening position, so that the two actuating rods 737 corresponding to the original second space rotate and clamp the pushed-up nut, thus completing the movement of the nut position.

[0056] A slider is provided on the lower end of the box body 71.

[0057] The cover plate 4 has a groove 42 at the position corresponding to the slider;

[0058] A transmission rod 43 is provided on the cover plate 4, and the transmission rod 43 is located near the working end; when the rotating wheel 732 reciprocates on the slide groove 42 with the box body 71, the transmission rod 43 is located on the movement path of the rotating wheel 732; the rotating wheel 732 is provided with a first thread, and the transmission rod 43 is provided with a second thread that matches the first thread, and the transmission rod 43 meshes with the rotating wheel 732.

[0059] A baffle 711 is provided at the opening of the box body 71. The baffle 711 is a plate that is thinner at the top and thicker at the bottom. The lower end of the baffle 711 is hinged to the lower end face of the box body 71 via a rotating shaft 712. A gear 713 is provided at one end of the rotating shaft 712. There is a certain gap between the lower end face of the gear 713 and the upper end of the cover plate. A rack 44 is provided on the upper end face of the cover plate 4, and the rack 44 matches the gear 713. When the gear 713 is not engaged with the rack 44, the baffle 711 is in a vertical position under the self-locking state of the rotating shaft. The baffle 711 prevents the nut from sliding out of the housing 71. When the housing 71 moves to the position of the rack 44, the gear 713 meshes with the rack and rotates. The gear 713 drives the rotating shaft 712 to rotate, and the rotating shaft 712 drives the baffle 711 to rotate. The baffle 711 changes from a vertical position to a horizontal position, and the horizontal baffle 711 has a slope. In the horizontal position, the height of the baffle 711 is lower than the height of the lower end face of the housing 71, allowing the nut to slide out along the slope of the baffle 711. As the housing moves toward the working end, the baffle 711 is set vertically to prevent the nut from sliding out of the housing 71. The rack 44 is set on the cover plate near the through hole. When the housing moves to the vicinity of the working end, the rack 44 and the gear 713 work together to open the baffle, ensuring that the nut slides out of the housing under the push of the lever 737.

[0060] In actual operation, 20-40 nuts of the same specification often need to be installed on the same device. After each nut is installed, another nut needs to be manually removed and placed on the insulated adsorption gear 31, which affects work efficiency. During the nut installation process, the nut assembly component 7 can automatically assemble the nut onto the insulated adsorption gear 31, reducing manual operation and improving labor efficiency.

[0061] Multiple nuts are arranged sequentially in the housing 71, with one end of each nut resting on the push plate 722 and the other end of each nut located at the opening of the housing 71. The rotating part 73 is matched with the nut located at the opening, and the two actuating rods 737 clamp the nut at a matching angle.

[0062] Example 3

[0063] The self-priming constant torque device suitable for confined spaces described in this embodiment is referred to... Figure 7 and Figure 8 Based on its first embodiment, a first bearing 8 and a connecting shaft 9 are arranged from top to bottom on the output shaft 21 of the motor 2; the connecting shaft 9 rotates coaxially with the output shaft 21. The first bearing 8 includes a first inner wall, a first ball, and a first outer wall, and the first groove 81 is formed on the first outer wall; in this embodiment, a second through hole is formed on the base plate 1 at a position corresponding to the driving gear 32, the first bearing 8 is disposed in the second through hole, the outer wall of the first bearing 8 rotates synchronously with the driving gear, the inner wall of the first bearing 8 is disposed in the second through hole, and the second through hole also includes a mating through hole that matches the mating block.

[0064] In use, the second through hole passes through the output shaft, aligning the mating through hole with the mating block. The mating block passes through the mating through hole and is inserted into the first groove 81. When the motor 2 starts working, the output shaft 21 rotates, driving the connecting shaft 9 to rotate. The connecting shaft 9 drives the mating block 91 to rotate, which in turn drives the outer wall of the first bearing 8 to rotate. This rotation of the outer wall drives the drive gear 32 to rotate, activating the transmission gear assembly 3 and causing the insulating adsorption gear 31 to rotate, ultimately completing the installation of the nut.

[0065] In this embodiment, multiple substrates 1 are included, each substrate 1 being equipped with a transmission gear assembly 3. Different substrates have insulating adsorption gears 31 capable of adsorbing nuts of different sizes. During use, if the size of the nut that the currently used insulating adsorption gear 31 can adsorb is insufficient for the current installation requirements, the substrate can be replaced. Along the axial direction of the output shaft 21, the currently used substrate 1 is pulled out, and a substrate 1 that meets the usage requirements is selected. The first groove 81 is aligned with the mating block, and the substrate 1 to be replaced is placed on the connecting shaft 9, completing the installation of the new substrate 1. During use, the operator can quickly replace the substrate 1 according to different nut sizes to adsorb nuts of different sizes, thereby achieving the installation of nuts of different sizes.

[0066] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A self-priming constant torque device suitable for use in a narrow space, characterized by, The utility model provides a nut assembly component, including base plate (1), motor (2), transmission gear assembly (3), cover plate (4) and nut assembly component (7), base plate (1) includes non -working end and the working end of the narrow space of being able to extend into, transmission gear assembly (3) is fixed on the working end, transmission gear assembly (3) is driven under the motor (2) rotation, the output end of transmission gear assembly (3) is insulating adsorption gear (31), and insulating adsorption gear (31) is used to adsorb the nut to be installed, cover plate (4) is seted up with through -hole (41), and through -hole (41) is matched with insulating adsorption gear (31), and the size of through -hole (41) is greater than the size of nut, The nut assembly component (7) includes a box body (71), a pushing part (72), and a rotating part (73). The box body (71) is an open-ended cuboid structure, and has a containing space for containing nuts in the box body (71). A plurality of nuts are arranged in the containing space. The pushing part (72) is arranged at an end of the containing space opposite to the opening. The pushing part (72) includes a first spring (721) and a push plate (722). One end of the first spring (721) is arranged on an end face of the containing space opposite to the opening, and the other end of the first spring (721) is arranged on one end face of the push plate (722). The other end face of the push plate (722) is arranged opposite to the nuts arranged in the containing space. The rotating part (73) includes a rotating rod (737). The included angle between the two rotating rods (737) forms a nut clamping space. When a spare nut is discharged from the opening, the first spring (721) pushes the push plate (722), and the push plate (722) pushes the nuts in the box body to move towards the opening position, so that the two rotating rods (737) corresponding to the original second space rotate and clamping the pushed nut at the same time, completing the movement of the nut position.

2. The self-priming constant torque device suitable for narrow space according to claim 1, characterized in that, The cover plate (4) is arranged opposite to the base plate (1). The transmission gear assembly (3) is arranged between the cover plate (4) and the base plate (1).

3. The self-priming constant torque device suitable for narrow space according to claim 2, characterized in that, A supporting pad (5) is further included and arranged between the base plate (1) and the cover plate (4).

4. The self-priming constant torque device suitable for narrow space according to claim 1, wherein, The transmission gear assembly (3) further includes a driving gear (32), a transmission gear (33), and a limiting gear (34).

5. The self-priming constant torque device suitable for narrow space according to claim 4, characterized in that, The driving gear (32) is arranged at the output end of the motor (2).

6. The self-priming constant torque device suitable for narrow space according to claim 5, characterized in that, The transmission gear (33) is engaged between the driving gear (32) and the insulating adsorption gear (31).

7. The self-priming constant torque device suitable for narrow space according to claim 4, wherein, The number of the limiting gears (34) is two.

8. The self-priming constant torque device suitable for narrow space according to claim 1, wherein, A battery (6) is further included and electrically connected with the motor (2).

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