Bolt anti-loosening line rapid marking tool

Abstract

The invention relates to the technical field of identification, and provides a bolt anti-loosening line rapid marking tool which comprises a pressing part, a shell, an ink supply part and a marking part, the pressing part is movably arranged at one end of the shell, the shell is provided with a fixing cavity, and a fixing table is arranged in the fixing cavity to divide the fixing cavity into a first cavity body and a second cavity body; the ink supply part is movably arranged in the first cavity, the pressing part is elastically connected with the ink supply part, one end of the lineation part penetrates through the fixing table in the first cavity and can move in the axial direction of the shell, the other end of the lineation part is located in the second cavity, the ink supply part is connected with the lineation part, and a counter is arranged on the shell and corresponds to the ink supply part in position. The pressing part acts on the ink supply part and drives the lineation part to lineate, and each lineation is counted by the counter, so that the lineation convenience is improved, and the maintenance progress is not influenced. The pressing part is elastically connected with the ink supply part, the pressing part is bounced under the elastic force of energy storage, and the ink supply part and the scribing part are driven to reset.

Description

Technical Field

[0001] This invention belongs to the field of marking technology, and specifically relates to a tool for quickly marking bolt anti-loosening lines. Background Technology

[0002] In the production, assembly, operation, and maintenance of electromechanical products (such as motors, construction machinery, and rail transit equipment), marking hexagonal bolts at critical connection points with anti-loosening lines is a necessary procedure to ensure the safe and stable operation of equipment. According to industry standards, this anti-loosening marking must form a continuous straight line across the top and side of the hexagonal bolt head, the top and side of the washer, and the surface of the electromechanical product. This line must be precisely aligned with the same side of the bolt and nut. Its core value lies not only in visually demonstrating that the bolt has reached the specified tightening torque according to process requirements, but also in serving as a crucial basis for subsequent product acceptance, warehousing, transportation, and maintenance inspections. By observing whether the lines are misaligned, it is possible to quickly determine whether the bolt has loosened due to vibration, load changes, or other factors, directly impacting the operational reliability and safety of the electromechanical product.

[0003] Currently, the industry still widely uses the traditional method of manually marking bolt anti-loosening lines. The procedure involves the operator holding an oil-based marker or industrial marker and visually aligning the marking path on the top and side surfaces of the bolt head, the top and side surfaces of the washer, and the surface of the electromechanical product. The operator then manually controls the pen tip to attempt to draw continuous straight lines on these areas. While this method requires no specialized equipment and is still applicable in simple scenarios with a small number of bolts, its limitations become fully apparent when facing large-scale production and complex maintenance of electromechanical products. It can no longer meet the demands for efficient and accurate marking. Specific shortcomings are as follows: Poor ease of operation: Limited applicable scenarios. The marking areas for bolt anti-loosening lines (top and side of the bolt head, top and side of the washer, and the surface of electromechanical products) are naturally stepped. Operators need to constantly adjust their hand posture and force angle to allow the marker tip to simultaneously contact multiple surfaces at different heights. Moreover, in the production and maintenance of electromechanical products, the number of bolts that need to be marked is usually large (tens to hundreds on a single machine). Long-term repetitive operation can easily lead to hand fatigue, further reducing operational efficiency. More importantly, when the bolt is located in a recessed part of the product (such as inside the equipment housing or in a narrow space between components), the marker pen barrel can easily interfere with surrounding components, making it difficult for operators to insert the pen tip into the designated position, or even impossible to complete the marking operation, seriously affecting the maintenance progress.

[0004] Low marking accuracy: affecting function and appearance. Because it relies entirely on manual control by operators and lacks positioning and guiding structures, the drawn anti-loosening lines often have problems such as tilting, breaks, and uneven thickness. Some lines deviate from the designated side direction of the bolt and nut due to hand tremors, making it difficult to accurately determine whether the bolt is loose during subsequent maintenance. Some lines have breaks at the transition points of steps (such as the junction of the bolt head side and the washer top surface), losing the integrity of the anti-loosening mark. These problems not only reduce the functional value of the anti-loosening mark, but also affect the appearance quality of electromechanical products due to the irregular lines, failing to meet the production standards of high-end electromechanical products.

[0005] In summary, existing manual marking pen line drawing solutions have significant shortcomings in terms of ease of operation, marking accuracy, and scenario adaptability. They cannot meet the efficiency requirements of large-scale production of electromechanical products, nor can they guarantee the accuracy of anti-loosening markings during maintenance. There is an urgent need for a new bolt anti-loosening line marking technology solution that can solve the above problems, improve marking efficiency and accuracy, and adapt to complex production and maintenance scenarios. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a quick marking tool for bolt anti-loosening lines, comprising: a pressing part, a housing, an ink supply part, and a marking part. The pressing part is movably disposed on one end of the housing. The housing has a fixed cavity, and a fixed platform is provided within the fixed cavity to divide the fixed cavity into a first cavity and a second cavity. The ink supply part is movably disposed within the first cavity. The pressing part and the ink supply part are elastically connected. One end of the marking part passes through the fixed platform within the first cavity and can move along the axial direction of the housing, while the other end is located within the second cavity. The ink supply part and the marking part are connected, and a counter is provided on the housing corresponding to the position of the ink supply part.

[0007] Furthermore, the counter is a mechanical counter or an electronic counter, and a counting display window is provided on the side wall of the housing to view the number of times the line is drawn in real time.

[0008] Furthermore, it also includes an elastic element, one end of which is fitted onto the ink supply part, and the other end is connected to the pressing part.

[0009] Furthermore, two stepped structures are provided on the marked section.

[0010] Furthermore, the ink supply unit includes an ink supply cavity and an ink supply disk. One end of the ink supply cavity is elastically connected to the pressing part, and the other end is connected to the ink supply disk. The ink supply disk is connected to the scribing part.

[0011] Furthermore, the ink supply disc includes an ink supply body and an ink-absorbing body. One end of the ink supply body is connected to the ink supply cavity, and the other end is connected to the ink-absorbing body and extends into the interior of the ink supply body. The ink-absorbing body is connected to the scribing section.

[0012] Furthermore, the ink supply chamber includes a housing and a piston rod disposed within the housing, the piston rod being connected to a protrusion on the pressing part.

[0013] Furthermore, the second cavity is externally fitted with the corresponding marking bolt.

[0014] Furthermore, the pressing stroke of the pressing part is 5-10mm, and the compression of the elastic element after pressing is greater than 80% of the pressing stroke.

[0015] Furthermore, a first rotating rod is provided on the pressing part, a receiving cavity is provided inside the rotating rod, and a second rotating rod is provided inside the receiving cavity. The first rotating rod and the second rotating rod mesh with each other, and the second rotating rod is connected to the ink supply part.

[0016] The bolt anti-loosening line quick marking tool provided by this invention has the following advantages compared with the prior art: The second cavity of the housing, which mates with the bolt and nut on the surface of the electromechanical product, must remain stationary. The second cavity completely encloses the bolt, nut, and washer. Manually pressing the pressing part causes the ink supply unit to move axially along the housing. Simultaneously, the ink supply unit applies an axial force to the marking unit and supplies ink to it. When the marking unit contacts the surface of the electromechanical product, a line is marked. At this point, the counter increments by 1, completing one count. This marking method offers higher accuracy compared to purely manual marking. Releasing the pressing part causes it to spring back under stored elastic force due to the elastic connection between it and the ink supply unit, returning the ink supply unit and marking unit to their initial positions, ready for the next marking count. This method improves the convenience of marking and does not affect the maintenance schedule.

[0017] Other features and advantages of the invention will be set forth in the following description, 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 pointed out in the description and the drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the overall shape of the bolt anti-loosening line quick marking tool in an embodiment of the present invention is shown; Figure 2 An exploded view of the bolt anti-loosening line quick marking tool in an embodiment of the present invention is shown; Figure 3A schematic diagram of the interior of the bolt anti-loosening line quick marking tool housing in an embodiment of the present invention is shown; Figure 4 A schematic cross-sectional view of the bolt anti-loosening line quick marking tool in an embodiment of the present invention is shown; Figure 5 A schematic diagram of the internal structure of the bolt anti-loosening line quick marking tool in an embodiment of the present invention is shown.

[0020] In the figure, 1 is the pressing part; 2 is the housing; 20 is the fixing platform; 21 is the fixing cavity; 211 is the first cavity; 212 is the second cavity; 3 is the ink supply part; 31 is the ink supply cavity; 32 is the ink supply disk; 321 is the ink supply body; 322 is the staining body; 4 is the scribing part; 5 is the counter; and 6 is the elastic element. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figure 1 and Figure 2 As shown, the present invention provides a quick marking tool for bolt anti-loosening lines, comprising: a pressing part 1, a housing 2, an ink supply part 3, and a marking part 4. The pressing part 1 is movably disposed on one end of the housing 2, and the housing 2 has a fixing cavity 21. See details below. Figure 3 A fixed platform 20 is provided in the fixed cavity 21 to divide the fixed cavity 21 into a first cavity 211 and a second cavity 212. The ink supply part 3 is movably disposed in the first cavity 211. The pressing part 1 is elastically connected to the ink supply part 3. One end of the scribing part 4 passes through the fixed platform 20 in the first cavity 211 and can move along the axial direction of the housing 2. The other end is located in the second cavity 212. The ink supply part 3 and the scribing part 4 are connected. A counter 5 is provided on the housing 2 and corresponds to the position of the ink supply part 3 to count the number of times the position of the ink supply part 3 moves up and down and record the number of scribings.

[0023] The second cavity 212 completely encloses the bolt, nut, and washer. Manually pressing the pressing part 1 causes the ink supply part 3 to move axially along the housing 2. Simultaneously, the ink supply part 3 applies an axial force to the marking part 4 and supplies ink to it. When the marking part 4 contacts the surface of the electromechanical product, a line is marked. At this time, the counter 5 increments by 1, completing one count. Releasing the pressing part 1 causes it to spring back under the stored elastic force due to the elastic connection between it and the ink supply part 3, returning the ink supply part 3 and the marking part 4 to their initial positions, ready for the next marking count. This marking method offers higher accuracy compared to purely manual marking. It also improves the convenience of marking and is more adaptable to complex production and maintenance scenarios.

[0024] In this embodiment, the counter 5 is either a mechanical counter or an electronic counter, and a counting display window is provided on the side wall of the column to view the number of lines drawn in real time. Optionally, the electronic counter 5 is powered by a button battery with a battery life of more than 2 years, and a low battery flashing reminder is added to it to adapt to long-term batch drawing scenarios. By automatically counting after each line is drawn and viewing it in real time in the display window, the problem of "missed / repeated lines" can be solved, and work efficiency can be improved.

[0025] For details, please refer to [link / reference]. Figure 2 and Figure 4 In this embodiment, an elastic element 6 is also included. One end of the elastic element 6 is sleeved on the ink supply part 3, and the other end is connected to the pressing part 1. Optionally, the elastic element 6 is a spring or a torsion spring. When the pressing part 1 and the ink supply part 3 are directly pressed, the elastic element 6 is selected as a spring; when the pressing part 1 and the ink supply part 3 are rotated, a torsion spring is selected. In addition, the ink supply part 3 is provided with a stepped structure, and the elastic element 6 is disposed on the stepped structure to lock the elastic element 6 in place. The other end is sleeved on the protruding structure of the pressing part 1.

[0026] For details, please refer to [link / reference]. Figure 5 Furthermore, the scribing section 4 is provided with two stepped structures. These two stepped structures can adapt to stepped areas on the surface of bolts / washers / products, forming a continuous straight line with a width of 1.0-1.2mm. This solves the problem of "unstraight lines," meaning that scribing lines on the surface of bolts / washers / products using the stepped structures will not result in unstraight lines. Optionally, the scribing section 4 is made of rigid polyurethane foam.

[0027] For details, please refer to [link / reference]. Figure 2 In this embodiment, the ink supply unit 3 includes an ink supply cavity 31 and an ink supply disk 32. One end of the ink supply cavity 31 is elastically connected to the pressing part 1, and the other end is connected to the ink supply disk 32. The ink supply disk 32 is connected to the scribing part 4. It should be noted that the ink supply cavity 31 is used to store and uniformly deliver ink, and the ink can be uniformly delivered to the scribing part 4 through the ink supply disk 32, thereby solving the problem of "uneven ink distribution when scribing lines by hand".

[0028] In this embodiment, the ink supply disk 32 includes an ink supply body 321 and an ink-absorbing body 322. One end of the ink supply body 321 is connected to the ink supply cavity 31, and the other end is connected to the ink-absorbing body 322 and extends into the interior of the ink supply body 321. The ink-absorbing body 322 is connected to the marking section 4. Optionally, the ink supply body 321 can be a ceramic structure or a metal or alloy structure that is not prone to rust, and it is a ring structure. It has an oil inlet end and an oil outlet end hole on both sides of the structure. The ink-absorbing body 322 has an oil-absorbing column that cooperates with the oil outlet end hole. The ink-absorbing body 322 is also a ring structure and is made of degreased cotton. The ink can be evenly delivered to the marking section 4 through the ink-absorbing body 322. In addition, the ink supply body 321 stores ink, and the ink-absorbing body 322 evenly absorbs and transfers it to the marking section 4 to prevent ink overflow. Optionally, the fixing cavity 21 can be eliminated, and the ink supply unit 3 and the scribing unit 4 can be directly connected, specifically through the dye body 322 directly connected to the scribing unit 4. This also enables the scribing unit 4 to be driven to scribing lines.

[0029] In this embodiment, the ink supply chamber 31 includes a housing and a piston rod disposed within the housing. The piston rod is connected to a protrusion on the pressing part 1. By connecting the piston rod to the protrusion on the pressing part 1, pressing pushes the ink to the ink supply disk 32, achieving quantitative ink supply. When there is no ink, a certain amount of ink can be added by removing the piston rod, thereby enabling the ink supply chamber 31 to be reused and saving costs.

[0030] Furthermore, the second cavity 212 engages with the corresponding scribing bolt. With no looseness in the engagement between the second cavity 212 and the bolt, the lower end of the scribing section 4 initially contacts the product surface, and the stepped structure aligns with the junction of the top and side surfaces of the bolt head for scribing.

[0031] In this embodiment, the pressing stroke of the pressing part 1 is 5-10mm, and the compression of the elastic element 6 after pressing is greater than 80% of the pressing stroke. It should be noted that the elastic element 6 stores energy when the pressing part 1 is pressed, and after being released, the elastic element 6 drives the tool to reset, with a reset time of less than or equal to 1.5s, thus improving the "rapid continuous scribing" requirement. Furthermore, the elastic element 6 can be made of stainless steel, with a free length of 50mm; the compression is 42mm (greater than 80% of the stroke) when the pressing stroke is 8mm.

[0032] In this embodiment, a first rotating rod is provided on the pressing part 1, a receiving cavity is provided inside the rotating rod, and a second rotating rod is provided inside the receiving cavity. The first rotating rod meshes with the second rotating rod, and the second rotating rod is connected to the ink supply part 3. It should be noted that the present invention has two ways to drive the marking part 4 to draw lines. The first method is the direct pressing described above, which will not be described again here. Here, the pressing part 1 is rotated, which drives the first rotating rod to rotate. Since the receiving cavity is provided with the second rotating rod, the first rotating rod meshes with the second rotating rod, which can drive the second rotating rod to move linearly in the opposite direction along its own axis, thereby ultimately driving the marking part 4 to draw lines, realizing the conversion of the rotational motion of the pressing part 1 into linear motion.

[0033] Key assembly processes: Insert the protrusion of the pressing part 1 into the groove at the top of the piston rod (it can be an interference fit or a clearance fit depending on actual needs) to ensure that the piston rod moves down synchronously when pressed; Adjust the meshing position of the first rotating rod (inner side of the pressing part 1) and the second rotating rod (top of the ink supply cavity 31) so that the counter 5 trigger rod rotates once for every rotation of the rotating rod (corresponding to a pressing stroke of 8mm), thereby realizing the linkage of pressing and counting.

[0034] The connection between the ink supply unit 3 and the scribing unit 4.

[0035] The upper end of the ink supply body 321 is aligned with the oil outlet of the outer shell of the ink supply cavity 31 to ensure that the ink flows smoothly in subsequent connections; The lower end of the dye body 322 is in close contact with the upper end of the scribing part 4 to ensure uniform ink transfer; The scribing part 4 is passed through the guide hole in the center of the fixed platform 20 to ensure that the scribing part 4 can slide along the axial direction of the housing 2, and the lower end extends to the second cavity 212. The step position is aligned with the stepped surface of the bolt head and the washer.

[0036] Assembly of Counter 5 The counter 5 is fixed to the counting mounting slot on the side wall of the housing 2 with screws; A transparent acrylic display window is installed on the side wall of housing 2 at the position corresponding to counter 5 to ensure that the displayed numbers are clearly visible. The edges of the window are sealed with sealant to prevent ink contamination.

[0037] Operating steps Step 1: Tool Positioning Holding the housing 2, align the second cavity 212 with the bolt to be marked, and slowly lower the tool so that the bolt, nut and washer are fully inserted into the second cavity 212 until the bottom of the housing 2 is in contact with the surface of the electromechanical product. After confirming that the second cavity 212 is in good fit with the bolt, the lower end of the scribing part 4 begins to contact the product surface, and the stepped structure is aligned with the junction of the top and side surfaces of the bolt head.

[0038] Step 2: Press to drive and supply ink Manually press down on the pressing part 1 until the target stroke is reached: The pressing part 1 drives the protrusion to push the piston rod down, compressing the elastic element 6, and pushing the ink in the ink supply chamber 31 toward the ink supply disk 32. The ink flows into the ink supply body 321 through the ink outlet of the ink supply chamber 31. After being absorbed by the dye body 322, it is evenly transferred to the scribing part 4. The scribing part 4 moves down along the guide hole of the fixed platform 20 under the push of the ink supply part 3.

[0039] Step 3: Draw and count the steps. When the pressing part 1 reaches its maximum stroke, the two steps of the scribing part 4 are engaged: Step up: top and side surfaces of the bolt head, top surface of the washer; Step down: The side of the washer is against the surface of the electromechanical product; The ink absorbed by the rigid sponge forms a continuous, straight anti-loosening line at the bonding area; At the same time, counter 5 is triggered, and the count increases from 0 to 1. This can be viewed in real time through the display window on the side wall of housing 2, completing one line counting cycle.

[0040] Step 4: Reset and Continuous Operation When the pressing part 1 is released, the elastic element 6 returns to its original position, causing the pressing part 1, piston rod, ink supply part 3 and scribing part 4 to move upward synchronously, and the scribing part 4 detaches from the scribing surface. Remove the tool and check the quality of the lines (no breaks, no ink overflow). If you need to continue drawing lines, repeat steps 1-3. Counter 5 will automatically accumulate the number of times. A single ink refill can complete 60-80 lines (meeting the requirements of "batch drawing").

[0041] Additionally, a snap-fit ​​structure (three snap-fits evenly distributed circumferentially) can be added to the inner wall of the second cavity 212 of the housing 2 to accommodate plastic bushings with different inner diameters. M12 bolt: Bushing inner diameter 18mm; M14 bolt: Bushing inner diameter 20mm; M20 bolt: Bushing inner diameter 26mm; The bushing height is consistent with the second cavity 212, and the inner wall is provided with anti-slip texture to prevent loosening when installing the bolts; The step spacing of the marked section 4 is adjusted according to the bolt specifications (M12: 12mm, M14: 14mm, M20: 18mm) to ensure that the step is adapted to the stepped part of the corresponding bolt.

[0042] Effect of setting up a snap-lock structure Adaptation efficiency: Bushing replacement time is less than 30 seconds, eliminating the need to replace the entire tool, thus reducing operating costs; Marking quality: The straightness deviation of the marks on bolts of different specifications is less than 0.5mm / meter, which meets the "standardization" requirement.

[0043] The scope of protection of this invention is not limited to the above embodiments. Any adjustments based on the core requirement of "one-time rapid marking and solving the problem of marking in stepped areas" and that do not exceed the scope of the original disclosure are all within the scope of protection. If a square head bolt is required, the second cavity 212 bushing can be designed as square (to fit the shape of the square head bolt), and the 4 steps of the scribing part can be adjusted according to the height of the square head. The ink supply chamber 31 can be replaced with a replaceable ink bladder, which can complete 80-100 lines with a single ink refill, further improving battery life.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quick marking tool for bolt lock wire, characterized in that, Include: Pressing part (1), shell (2), ink supply part (3) and scribing part (4), the pressing part (1) is movably arranged on one end of the shell (2), the shell (2) has a fixed cavity (21), a fixed table (20) is arranged in the fixed cavity (21) to separate the fixed cavity (21) into a first cavity (211) and a second cavity (212), the ink supply part (3) is movably arranged in the first cavity (211), the pressing part (1) and the ink supply part (3) are elastically connected, one end of the scribing part (4) passes through the fixed table (20) in the first cavity (211) and can move along the axial direction of the shell (2), the other end is located in the second cavity (212), the ink supply part (3) and the scribing part (4) are connected, and a counter (5) is arranged on the shell (2) and corresponds to the position of the ink supply part (3).

2. The bolt lock wire quick marking tool according to claim 1, wherein, The counter (5) is a mechanical counter (5) or an electronic counter (5), and a counting display window is arranged on the side wall of the shell (2) to view the scribing times in real time.

3. The bolt lock wire quick marking tool of claim 1, wherein, It also includes a resilient element (6), one end of which is sleeved on the ink supply part (3), and the other end is connected with the pressing part (1).

4. The bolt lock wire quick scribe tool of claim 1, wherein, Two stepped structures are arranged on the scribing part (4).

5. The bolt lock wire quick marking tool of claim 1, wherein, The ink supply part (3) includes an ink supply cavity (31) and an ink supply disc (32), one end of the ink supply cavity (31) is elastically connected with the pressing part (1), the other end is communicated with the ink supply disc (32), and the ink supply disc (32) is connected with the scribing part (4).

6. The bolt lock wire quick marking tool of claim 5, wherein, The ink supply disc (32) includes an ink supply body (321) and an infection body (322), one end of the ink supply body (321) is communicated with the ink supply cavity (31), the other end is connected with the infection body (322) and extends into the inside of the ink supply body (321), and the infection body (322) is connected with the scribing part (4).

7. The bolt lock wire quick marking tool of claim 5, wherein, The ink supply cavity (31) includes a shell and a piston rod arranged in the shell, and the piston rod is connected with the protrusion on the pressing part (1).

8. The bolt lock wire quick scribe tool of claim 1, wherein, The second cavity (212) is matched with the corresponding scribing bolt.

9. The bolt lock wire quick marking tool of claim 3, wherein, The pressing stroke of the pressing part (1) is 5-10mm, and the compression amount of the elastic element (6) after pressing is greater than 80% of the pressing stroke.

10. The bolt lock wire quick marking tool of claim 1, wherein, A first rotating rod is arranged on the pressing part (1), a containing cavity is arranged in the rotating rod, a second rotating rod is arranged in the containing cavity, the first rotating rod is engaged with the second rotating rod, and the second rotating rod is connected with the ink supply part (3).

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