Anti-disassembly snap spring for foundation bolt of power transmission and transformation project and use method

Abstract

The invention relates to the technical field of power transmission project fasteners, in particular to a power transmission and transformation project foundation bolt anti-disassembly clamp spring and a using method. The power transmission and transformation project foundation bolt anti-disassembly clamp spring comprises a limiting part and an engaging part. The device is reasonable and compact in structure, when the device is used, two clamp heads of a clamp spring clamp are inserted into the left dismounting hole and the right dismounting hole correspondingly, an opening of the limiting part is opened with force, then a clamp spring is embedded into a thread groove of a foundation bolt at the upper end of a nut, after the clamp spring clamp is loosened, the opening of the limiting part becomes small, the meshing part abuts against the thread surface of a thread, and the nut is dismounted. In order to improve the anti-theft performance, the cross section of the left dismounting hole and the cross section of the right dismounting hole can be the same or different, and the cross section can be circular or polygonal. When the clamp spring is disassembled and assembled, the clamp spring can be disassembled only when the section of the head of the clamp spring pliers is identical to the sections of the left disassembling hole and the right disassembling hole, a conventional tool cannot disassemble the clamp spring, and therefore the nut stealing difficulty is increased.

Description

Technical Field

[0001] This invention relates to the field of fastener technology for power transmission engineering, specifically a detachable retaining spring for anchor bolts in power transmission and transformation engineering and its usage method. Background Technology

[0002] In current power transmission and transformation projects, the anchor bolts and nuts used to secure transmission towers rely primarily on two traditional technologies for preventing loosening and dismantling. The first is to roughen the threads of the anchor bolts: using a grinder to grind the external threads of the anchor bolts, destroying the thread integrity to prevent nut dismantling. This method permanently damages the anchor bolt structure, making the anchor bolts unusable and requiring replacement of the entire anchor bolt assembly for subsequent maintenance, increasing material costs. Furthermore, the degree of roughening is difficult to control; excessive roughening may weaken the anchor bolt strength, affecting the structural safety of the project. Thread roughening requires a grinder, and a single operation takes 5 minutes.

[0003] The second method is to use wire to fix it: use wire to tie the nut to the equipment base together, and restrict the rotation of the nut by physically hindering it. This method is cumbersome to operate, and it takes 5 to 8 minutes for a single person to fix a single set of anchor bolts. The efficiency is extremely low. The wire is also easily corroded and broken by the outdoor environment. The anti-tampering effect is short (usually 3-6 months). And the wire can be cut with ordinary pliers. The anti-tampering effect is poor and still cannot avoid the risk of the nut being stolen. Summary of the Invention

[0004] This invention provides an anti-disassembly snap ring for anchor bolts in power transmission and transformation projects and its usage method, which overcomes the shortcomings of the prior art. It can effectively solve the problems of existing bolt and nut anti-loosening and anti-disassembly methods, such as non-reusability, poor anti-theft effect, and cumbersome operation.

[0005] One of the technical solutions of the present invention is achieved through the following measures: a detachable retaining spring for anchor bolts in power transmission and transformation projects, comprising a limiting part and an engaging part. The limiting part is an arc shape with an opening facing forward. Several engaging parts are fixed at intervals on the inner side of the limiting part in a spiral distribution. The engaging parts can be engaged in the thread groove of the bolt. A left disassembly hole that runs vertically through the upper front part of the limiting part is provided, and a right disassembly hole that runs vertically through the upper right side of the limiting part is provided.

[0006] The following are further optimizations and / or improvements to one of the above-mentioned technical solutions: A left disassembly part can be fixed to the left side of the front part of the aforementioned limiting part, with a left disassembly hole located on the upper side of the left disassembly part. A right disassembly part can be fixed to the right side of the front part of the limiting part, with a right disassembly hole located on the upper side of the right disassembly part.

[0007] The thickness of the aforementioned limiting part can be 1.5 to 2 mm, and the width of the limiting part can be 3 to 4 mm.

[0008] Both the limiting part and the engaging part mentioned above can be made of spring steel.

[0009] The second technical solution of the present invention is achieved through the following measures: a method for using an anti-disassembly retaining spring for anchor bolts in power transmission and transformation projects, comprising the following steps: Step one, the installation process, includes: First, after the anchor bolts are passed through the mounting holes of the equipment base, tighten the nuts and pre-tighten them; The second step is to use a tool to clamp the limiting part and embed it into the thread gap between the nut and the anchor bolt until the engaging part is engaged in the thread groove of the anchor bolt. Third, gently tighten the nut to ensure the engagement part is secure; Step two, the disassembly process, includes: First, use a tool to insert into the left and right disassembly holes; The second step is to use tools to enlarge the opening of the limiting part until the inner diameter of the interlocking part is larger than the outer diameter of the anchor bolt. Third, remove the limiting part and retract it, then unscrew the nut.

[0010] This invention features a reasonable and compact structure. In use, the two heads of snap ring pliers are inserted into the left and right disassembly holes respectively. The opening of the limiting part is forcefully pried open, and then the snap ring is embedded into the threaded groove of the anchor bolt at the upper end of the nut. Releasing the snap ring pliers reduces the opening of the limiting part, causing the engaging part to abut against the threaded surface. This allows the snap ring to engage on the outside of the anchor bolt, and the lower end of the snap ring restricts the nut from moving upwards, thus preventing loosening. To enhance anti-theft performance, the cross-sections of the left and right disassembly holes can be the same or different, and can be circular or polygonal. The snap ring can only be removed when the head of the snap ring pliers has the same cross-section as the left and right disassembly holes; conventional tools cannot remove it, thereby reducing the risk of nut theft.

[0011] The anchor bolt anti-disassembly springs in this power transmission and transformation project can be repeatedly installed and removed more than 30 times without damaging the structure of the bolts and nuts. The bolts and nuts can be 100% recycled and reused, avoiding the additional costs caused by the scrapping of bolts and nuts and extending the service life of bolts and nuts.

[0012] The anti-disassembly snap ring for anchor bolts in this power transmission and transformation project does not damage the anchor bolts and nuts. The snap ring can be reused and has the advantages of convenient operation, low cost, and strong anti-disassembly effect, ensuring the long-term safety and stability of power transmission lines in the power transmission and transformation project. Attached Figure Description

[0013] Appendix Figure 1 This is a schematic diagram of the front sectional view of the structure when used in Embodiments 1 to 5 of the present invention.

[0014] Appendix Figure 2 This is a partial cross-sectional view of the limiting part in use according to embodiments one to five of the present invention.

[0015] Appendix Figure 3 This is a top view of the limiting part and the biting part in embodiments one to five of the present invention.

[0016] The codes in the attached diagram are as follows: 1 is the limiting part, 2 is the engaging part, 3 is the left disassembly hole, 4 is the right disassembly hole, 5 is the left disassembly part, 6 is the right disassembly part, 7 is the anchor bolt, and 8 is the nut. Detailed Implementation

[0017] The present invention is not limited to the following embodiments, and the specific implementation can be determined according to the technical solution of the present invention and the actual situation.

[0018] In this invention, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as the positional relationships of front, back, top, bottom, left, and right, which are based on the instructions attached. Figure 1 The orientation of the layout is determined by the direction of the map.

[0019] The present invention will be further described below with reference to embodiments and accompanying drawings: Example 1: As shown in the attached document Figure 1 , 2 As shown in Figure 3, the anti-disassembly snap ring for the anchor bolts of the power transmission and transformation project includes a limiting part 1 and an engaging part 2. The limiting part 1 is an arc shape with an opening facing forward. Several engaging parts 2 are fixed at intervals on the inner side of the limiting part 1 in a spiral distribution. The engaging parts 2 can be engaged in the thread groove of the bolt. The upper front part of the limiting part 1 is provided with a left disassembly hole 3 that runs vertically through the bolt, and the upper right side of the limiting part 1 is provided with a right disassembly hole 4 that runs vertically through the bolt.

[0020] The inner side of the limiting part 1 is fixed with a number of spirally distributed engagement parts 2. The engagement parts 2 can be engaged in the thread groove of the bolt, so that the engagement parts 2 can be locked with the thread groove wall of the bolt. When using the snap ring pliers, insert the two pliers into the left disassembly hole 3 and the right disassembly hole 4 respectively, forcefully open the opening of the limiting part 1, and then insert the snap ring into the thread groove of the anchor bolt 7 at the upper end of the nut 8. After releasing the snap ring pliers, the opening of the limiting part 1 becomes smaller, and the biting part 2 abuts against the thread surface. In this way, the snap ring is engaged on the outside of the anchor bolt 7, and the lower end face of the snap ring restricts the upward movement of the nut 8, thus preventing the nut 8 from loosening. In order to improve the anti-theft performance, the cross-sections of the left disassembly hole 3 and the right disassembly hole 4 can be the same or different. The cross-section can be circular or regular polygonal (such as equilateral triangle, square or regular hexagon). When removing and installing the snap ring, the head of the snap ring pliers must be the same as the cross-section of the left disassembly hole 3 and the right disassembly hole 4 to remove the snap ring. Conventional tools cannot remove it, thereby reducing the risk of the nut 8 being stolen.

[0021] The anchor bolt anti-disassembly springs of this power transmission and transformation project can be repeatedly installed and removed more than 30 times without damaging the structure of the bolts and nuts 8. The bolts and nuts 8 can be 100% recycled and reused, avoiding the additional costs caused by the scrapping of bolts and nuts 8 and extending the service life of bolts and nuts 8.

[0022] The anti-disassembly snap ring for the anchor bolts in this power transmission and transformation project does not damage the anchor bolts 7 and nuts 8. The snap ring can be reused and has the advantages of convenient operation, low cost and strong anti-disassembly effect, ensuring the long-term safety and stability of the power transmission lines in the power transmission and transformation project.

[0023] The anti-disassembly snap rings for the anchor bolts in the above-mentioned power transmission and transformation projects can be further optimized and / or improved according to actual needs: Example 2: As an optimization of the above examples, as shown in the appendix. Figure 3 As shown, a left disassembly part 5 is fixed to the left side of the front part of the limiting part 1, and a left disassembly hole 3 is provided on the upper side of the left disassembly part 5. A right disassembly part 6 is fixed to the right side of the front part of the limiting part 1, and a right disassembly hole 4 is provided on the upper side of the right disassembly part 6.

[0024] According to requirements, the left disassembly part 5, right disassembly part 6, limiting part 1, and engaging part 2 are integrated. During use, this design prevents the anti-disassembly spring for power transmission and transformation project anchor bolts from breaking during disassembly and assembly. It also increases the contact area between the lower end of the anti-disassembly spring and the nut 8, preventing the nut 8 from loosening. This anti-disassembly spring for power transmission and transformation project anchor bolts only embeds into the thread gap, without altering the original structure and dimensions of the anchor bolts 7 and nut 8, thus fully preserving the strength and integrity of the anchor bolts 7 and nut 8, further enhancing the structural safety of the power transmission and transformation project.

[0025] Example 3: As an optimization of the above examples, as shown in the appendix. Figure 2 , 3 As shown, the thickness of the limiting part 1 is 1.5 to 2 mm, and the width of the limiting part 1 is 3 to 4 mm.

[0026] During use, this setting allows it to be used with M16-M30 anchor bolts with a thread pitch of 2 to 3 mm, commonly used in power transmission and transformation projects.

[0027] Example 4: As an optimization of the above embodiment, both the limiting part 1 and the engaging part 2 are made of spring steel.

[0028] Based on requirements, the spring steel is 60Si2Mn spring steel, and the surfaces of the limiting part 1 and the engaging part 2 are passivated. This invention, with its high-hardness spring steel material and design compatible with snap ring pliers, makes it impossible for conventional tools to apply force to the anti-disassembly snap rings on the anchor bolts of power transmission and transformation projects. It is completely impossible for non-professionals to disassemble them, achieving an anti-disassembly success rate of over 98%. This completely eliminates the risk of nut 8 being stolen and reduces engineering safety accidents caused by missing bolts and nuts.

[0029] Example 5: As an optimization of the above examples, as shown in the appendix. Figure 1 , 2 As shown in Figure 3, the method of using the anti-disassembly snap ring for anchor bolts in power transmission and transformation projects includes the following steps: Step one, the installation process, includes: First, after the anchor bolts 7 pass through the mounting holes of the equipment base, tighten the nuts 8. The second step is to use a tool to clamp the limiting part 1 and embed the limiting part 1 into the thread gap between the nut 8 and the anchor bolt 7 until the engaging part 2 is engaged in the thread groove of the anchor bolt 7. Third step, gently tighten nut 8 to confirm that the engagement part 2 is locked; Step two, the disassembly process, includes: First, use a tool to insert into the left disassembly hole 3 and the right disassembly hole 4; The second step is to use a tool to enlarge the opening of the limiting part 1 until the inner diameter of the engaging part 2 is greater than the outer diameter of the anchor bolt 7. Third step, remove the limiting part 1 and retract it, then unscrew the nut 8.

[0030] Based on the requirements, the tool used is the existing and well-known snap ring pliers. The snap ring for preventing disassembly of anchor bolts in power transmission and transformation projects of this application only needs to be inserted into the thread gap of the anchor bolt. It can be operated by using snap ring pliers to snap it into the disassembly hole. The installation can be completed by a single person within 30 seconds. The installation efficiency is 10-16 times higher than that of traditional technology, which greatly reduces the labor and time costs of construction.

[0031] The production cost of a single set of anti-disassembly snap rings for anchor bolts in power transmission and transformation projects is only 2-3 yuan, and it can be reused for a long time without subsequent consumable expenses. The comprehensive cost of a single set of products is only 1 / 5-1 / 8 of that of traditional technologies, with significant cost-effectiveness advantages, making it suitable for large-scale promotion and application in power transmission and transformation projects.

[0032] The above technical features constitute various embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A type of anti-disassembly retaining spring for anchor bolts in power transmission and transformation projects, characterized in that... It includes a limiting part and an engaging part. The limiting part is an arc shape with an opening facing forward. Several engaging parts are fixed at intervals on the inner side of the limiting part in a spiral distribution. The engaging parts can be engaged in the thread groove of the bolt. The upper front part of the limiting part is provided with a left disassembly hole that runs through the top and bottom, and the upper right part of the limiting part is provided with a right disassembly hole that runs through the top and bottom.

2. The anti-disassembly retaining spring for anchor bolts in power transmission and transformation projects according to claim 1, characterized in that... A left disassembly part is fixed to the left side of the front part of the limiting part, and a left disassembly hole is located on the upper side of the left disassembly part. A right disassembly part is fixed to the right side of the front part of the limiting part, and a right disassembly hole is located on the upper side of the right disassembly part.

3. The anti-disassembly retaining spring for anchor bolts in power transmission and transformation projects according to claim 1 or 2, characterized in that... The thickness of the limiting part is 1.5 to 2 mm, and the width of the limiting part is 3 to 4 mm.

4. The anti-disassembly retaining spring for anchor bolts in power transmission and transformation projects according to claim 1 or 2, characterized in that... Both the limiting part and the engaging part are made of spring steel.

5. The anti-disassembly retaining spring for anchor bolts in power transmission and transformation projects according to claim 3, characterized in that... Both the limiting part and the engaging part are made of spring steel.

6. A method of using a detachable retaining spring for anchor bolts in power transmission and transformation projects as described in any one of claims 1 to 5, characterized in that... The steps include the following: Step one, the installation process, includes: First, after the anchor bolts are passed through the mounting holes of the equipment base, tighten the nuts and pre-tighten them; The second step is to use a tool to clamp the limiting part and embed it into the thread gap between the nut and the anchor bolt until the engaging part is engaged in the thread groove of the anchor bolt. Third, gently tighten the nut to ensure the engagement part is secure; Step two, the disassembly process, includes: First, use a tool to insert into the left and right disassembly holes; The second step is to use tools to enlarge the opening of the limiting part until the inner diameter of the interlocking part is larger than the outer diameter of the anchor bolt. Third, remove the limiting part and retract it, then unscrew the nut.

Images