Adjustable clasp fixer

Abstract

The application relates to an adjustable light guide fixing device, which comprises a fixing device base, a light guide fixing arm, a fixing structure and a lock structure. The lock structure on the fixing device base is matched with a cross arm to be fixed. The light guide fixing arm comprises a sliding part and a hook part. The sliding part slides in a hole of the base, and the relative sliding is limited through the fixing structure, so that the length can be adjusted to meet the installation requirement. The lock structure comprises a first lock plate, a second lock plate and an insertion plate, etc. The lock structure can realize the opening and closing of a lock opening, and is convenient and firm to install. A two-stage telescopic structure is arranged, which comprises a fixing arm base, a sliding arm and a locking assembly, and can realize stepless adjustment, and is more widely applicable.

Description

Technical Field

[0001] This invention relates to the field of fastening devices, and more specifically, to an adjustable link fastener. Background Technology

[0002] Link is a simple and practical high-voltage switchgear widely used for power isolation and maintenance of power distribution lines. Safety precautions must be taken during operation and regular maintenance is required.

[0003] Outdated links and links with family-related defects have caused serious grounding and short-circuit problems, becoming one of the main causes of power distribution network failures. The risk of link detachment is characterized by its lack of limitations on service life, supplier brand, and detection methods, making it difficult to manage. Detachment is particularly common with 20kV links due to their heavy weight. Therefore, regular maintenance of aging links is necessary, along with the installation of link retainers for maintenance, and replacement of the retainers when necessary. To meet users' demands for high-quality power services, it is essential to reduce the frequency and duration of power outages caused by link replacement work; therefore, it is crucial to improve the installation efficiency of link retainers.

[0004] Chinese Patent Publication No. CN112038206A, published on December 4, 2020, discloses an invention entitled "Link Auxiliary Fixing Device". This application discloses a link fixer that requires the snap-fit ​​part to be engaged with the crossarm that fixes the link during use. During the snap-fit ​​process, due to the long and thin snap-fit ​​interface, the snap-fit ​​part is difficult to adapt to the crossarm, resulting in low installation efficiency. In addition, this link fixer can only be adapted to flat crossarms and cannot be adapted to the installation of crossarms of other shapes. Summary of the Invention

[0005] This invention overcomes the following shortcomings of existing link fasteners: (1) inconvenient installation, low installation efficiency, leading to increased labor costs; (2) only adaptable to crossarms of specific shapes; (3) unable to adjust the length of the link according to its position, resulting in poor applicability. An adjustable link fastener is provided, which is easy to install and significantly improves installation efficiency compared to existing link fasteners; it can adapt to crossarms of different shapes and is firmly installed after being fitted with the crossarm; and its length can be adjusted according to the position of the link, making it highly applicable.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an adjustable link fixator, comprising: The fixing base includes a locking structure and a base hole; the locking structure cooperates with the crossbeam to fix the fixing base to the crossbeam; Link fixing arm, including a sliding part that is slidably disposed in the base hole and a hook part that surrounds the periphery of the link bar; A fixed structure restricts the relative sliding of the sliding part within the base hole.

[0007] The adjustable link holder in this application uses a locking structure to fix it to the crossarm, which is easy to install and can significantly improve installation efficiency compared to existing link holders. The sliding part is slidably set in the base hole, which can adjust the length of the link fixing arm. The length of the link fixing arm can be adjusted according to the actual situation to meet various installation requirements. It can be adapted to crossarms of different shapes and is firmly installed after being fitted with the crossarm. The length can be adjusted according to the position of the link, making it highly applicable.

[0008] Preferably, the Link fixed arm also includes a fixed arm base, a sliding arm, and a locking assembly; An adjustment hole is provided on the fixed arm base, and the direction of the adjustment hole is the same as the direction of the hole in the base. The sliding arm slides within the adjustment hole. The sliding part is located on the base of the fixed arm; the hook part is located at the end of the sliding arm away from the adjustment hole. The locking component restricts the movement of the sliding arm within the adjustment hole.

[0009] The fixed arm base, sliding arm, and locking assembly work together to form a two-stage telescopic structure, which extends the range of extension and has a wider range of applications.

[0010] Preferably, the locking structure includes a first locking plate, a second locking plate, and a insert plate disposed on the base of the retainer, wherein the first locking plate and the second locking plate cooperate to form a locking opening; the insert plate passes through the first locking plate and the second locking plate. The first lock plate is equipped with a locking element that cooperates with the insert plate. The locking element fixes the insert plate, and the lock opening is in an open or closed state.

[0011] The lock can cooperate with the latch plate, and by pushing the lock, the lock can be in the open or closed state.

[0012] Preferably, the lock is slidably disposed along the length of the first lock plate; the lock has a first locking part and a second locking part, and the insert plate has a first locking part and a second locking part; the first locking part cooperates with the first locking part to open the lock; the second locking part cooperates with the second locking part to close the lock.

[0013] By pushing the locking element along the first locking plate, the locking element can cooperate with the insertion plate and limit the insertion plate, thereby opening or closing the lock.

[0014] Preferably, the first card part is an insertion port on both sides in the width direction of the insertion plate, and the first locking part is an insertion plate that cooperates with the insertion ports on both sides; The second card part is a card head located at the end of the insert plate, and the second locking part is a card slot that cooperates with the card head.

[0015] If the insert plate directly engages with the slot, it can be limited to keep the lock open; if the slot directly engages with the latch, it can keep the lock closed.

[0016] Preferably, a protrusion is provided on the first locking plate; a clamping plate is provided on the locking member to clamp the protrusion on both sides; when the first locking part cooperates with the first locking part, the second locking part and the second locking part, the clamping plate clamps the protrusion on both sides.

[0017] When the first locking part, the first locking part, the second locking part, and the second locking part are engaged, the clamping plate can clamp onto both sides of the protrusion to prevent the clamping plate from disengaging from the protrusion, thus ensuring the locking state of the lock on the insert plate and fixing the lock.

[0018] Preferably, the locking component includes: The locking plate has an engagement part at its end, which engages with the side wall of the sliding arm; The locking limit plate is inserted into the side wall groove of the locking plate to restrict the movement of the locking plate, so that the locking plate and the sliding arm remain engaged.

[0019] A rack is provided along the length of the sliding arm on its side wall, and a locking tooth is provided at the end of the locking plate to mesh with the rack. When the end of the locking plate abuts against the sliding arm and the rack and the locking tooth mesh with each other, the sliding arm can be limited. When the locking plate is separated from the sliding arm, the limiting effect disappears, and the sliding arm can slide normally within the adjustment hole to adjust the extension state of the sliding arm and achieve stepless adjustment of the extension length of the sliding arm.

[0020] Preferably, the fixed arm base is provided with a first mounting hole and a second mounting hole; The first mounting hole is connected to the side wall of the adjustment hole, and the locking plate is slidably set in the first mounting hole; The second mounting hole is connected to the side wall of the first mounting hole, and the locking limit plate is slidably disposed in the second mounting hole.

[0021] The locking plate and the locking limit plate are located in the first mounting hole and the second mounting hole, respectively, making the overall structure more compact.

[0022] Preferably, the locking limit plate and the side wall groove of the locking plate are interference fit.

[0023] When the locking limit plate is inserted into the side wall groove, the locking limit plate will not easily fall out of the side wall groove, and can continuously maintain the limit of the locking plate.

[0024] Preferably, the fixing structure includes several fixing bolts with a first hole along the length of the sliding part, a second hole on both sides of the base hole, and fixing bolts passing through the first and second holes; the sliding part slides in the base hole, and the fixing bolts are connected to the nuts after passing through the first and second holes.

[0025] When it is necessary to adjust the length of the linker fixed arm extension, the fixing bolt can be removed, and then the sliding part can be slid in the base hole. When it slides to a specific position, the fixing bolt is inserted from the second hole on one side of the retainer base, then through the first hole, and finally out through the other side of the retainer base to connect with the nut. This will fix the sliding part to the base hole and prevent relative sliding.

[0026] Compared with the prior art, the beneficial effects of the present invention are: (1) The adjustable link fastener in this application adopts a locking structure to fix the crossbeam, which has the characteristics of convenient installation. Compared with the existing link fastener, it can significantly improve the installation efficiency; it can also adapt to crossbeams of different shapes, and it is firmly installed after being matched with the crossbeam; it can adjust the length according to the position of the link, and has strong applicability. (2) The sliding part and the base hole cooperate to form a first-level telescopic structure, and the fixed arm base, sliding arm and locking assembly cooperate to form a second-level telescopic structure. The sliding arm extends a longer range and has a wider range of applications. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0028] Figure 2 This is a three-dimensional structural diagram of the present invention from another perspective.

[0029] Figure 3 This is an exploded view of the present invention.

[0030] Figure 4 This is an exploded view of the present invention from another angle.

[0031] Figure 5 This is a cross-sectional view of the present invention.

[0032] Figure 6 This is a three-dimensional structural diagram of the fixture base and insert plate of the present invention.

[0033] Figure 7 This is a three-dimensional structural diagram of the fixed arm base of the present invention.

[0034] In the diagram: 1. Fixture base; 11. Base hole; 111. Inner limiting strip. 2. Locking structure, 21. First locking plate, 211. First through hole, 22. Second locking plate, 221. Second through hole, 23. Insert plate, 231. Insertion port, 232. Clip head, 24. Locking component, 241. Side plate, 242. Side small plate, 243. Slide groove, 244. Locking plate, 245. Insert plate, 246. Slot, 247. Clamping plate, 25. Protrusion; 3. Link fixed arm; 31. Sliding part; 311. Upper sliding part; 312. Lower sliding part; 313. Limiting protrusion; 32. Hook part; 33. Fixed arm base; 331. Adjustment hole; 332. Guide bar; 333. First mounting hole; 334. Second mounting hole; 34. Sliding arm; 341. Guide groove; 342. Rack. 4. Fixing structure, 41. First hole, 42. Second hole, 43. Fixing bolt; 5. Locking components, 51. Locking plate, 511. Locking teeth, 512. Side wall groove, 513. Pull ring, 52. Locking limit plate, 521. Push-pull plate; 6. Socket. Detailed Implementation

[0035] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings: Example 1: Refer to Figures 1 to 7 As shown, an adjustable link fastener includes: The fixture base 1 includes a locking structure 2 and a base hole 11; the locking structure 2 cooperates with the crossbeam to fix the fixture base 1 on the crossbeam. Link fixing arm 3 includes a sliding part 31 that is slidably disposed in the base hole 11 and a hook part 32 that surrounds the periphery of the link bar; The fixing structure 4 restricts the relative sliding of the sliding part 31 within the base hole 11.

[0036] The sliding part 31 is slidably disposed in the base hole 11, which can adjust the length of the link fixing arm 3. The length of the link fixing arm 3 can be adjusted according to the actual situation to meet various installation requirements. In addition, it can cooperate with the crossarm by means of a locking mechanism, which can improve installation efficiency, reduce labor installation costs, and adapt to crossarms of different shapes, making it more practical.

[0037] The sliding part 31 is elongated, and in this embodiment, the sliding part 31 is cuboid in shape. The base hole 11 is a rectangular hole that mates with the sliding part 31. The rectangular hole mates with the cuboid sliding part 31, which can effectively restrict the relative rotation of the sliding part 31 within the base hole 11.

[0038] In one embodiment, the sliding part 31 is divided into two parts, namely an upper sliding part 311 and a lower sliding part 312. The width of the lower sliding part 312 is greater than the width of the upper sliding part 311. Inside the base hole 11, inner limiting strips 111 are provided on both sides of the base hole 11 along its length direction. When the sliding part 31 slides in the base hole 11, the lower sliding part 312 slides between the inner limiting strip 111 and the side wall of the sliding hole. The inner limiting strip 111 plays a limiting role for the lower sliding part 312.

[0039] A limiting protrusion 313 is provided on the upper end face of the sliding part 31 away from the base hole 11. The limiting protrusion 313 can limit the sliding part 31. When the sliding part 31 slides to the deepest part of the base hole 11, the limiting protrusion 313 abuts against the end of the base hole 11.

[0040] The fixing structure 4 is used to limit the position of the sliding part 31 within the base hole 11. In this embodiment, the fixing structure 4 includes several fixing bolts 43 that are provided with a first hole 41 along the length direction of the sliding part 31, second holes 42 that pass through both sides of the base hole 11, and first holes 41 and second holes 42 that pass through the first holes 41 and second holes 42. The sliding part 31 slides within the base hole 11, the first holes 41 and second holes 42 are provided through the sliding part, and the fixing bolts 43 are connected to the nuts after passing through the first holes 41 and second holes 42.

[0041] Specifically, the first hole 41 is provided in the lower sliding part 312, and several first holes 41 are evenly distributed along the length of the lower sliding part 312. When it is necessary to adjust the extension length of the link fixing arm 3, the fixing bolt 43 can be removed, and then the sliding part 31 can be slid in the base hole 11. When it slides to a specific position, the fixing bolt 43 is inserted from the second hole 42 on one side of the fixing base 1, then through the first hole 41, and finally out from the other side of the fixing base 1 to connect with the nut. This fixes the sliding part 31 to the base hole 11 and prevents relative sliding.

[0042] In one embodiment, the locking structure 2 includes a first locking plate 21, a second locking plate 22 and an insert plate 23 disposed on the retainer base 1. The first locking plate 21 and the second locking plate 22 cooperate to form a locking opening; the insert plate 23 passes through the first locking plate 21 and the second locking plate 22. A locking element 24 is provided on the first locking plate 21 to cooperate with the insert plate 23. The locking element 24 fixes the insert plate 23, and the lock is in an open or closed state.

[0043] In this embodiment, the first locking plate 21 and the second locking plate 22 are located at the upper and lower ends of the fixture base 1, respectively, and the first locking plate 21 and the second locking plate 22 are arranged in parallel. The first locking plate 21 and the second locking plate 22 cooperate to form a locking opening. The first locking plate 21, the second locking plate 22 and the hook portion 32 are located at both ends of the fixture base 1, respectively.

[0044] A first through hole 211 is provided on the first locking plate 21, and a second through hole 221 is provided on the second locking plate 22. The insert plate 23 passes through the first through hole 211 from above the first locking plate 21 and then exits through the second through hole 221, closing the lock formed by the first locking plate 21 and the second locking plate 22. In this embodiment, the cross-section of the insert plate 23 is rectangular, therefore the first through hole 211 and the second through hole 221 are both set as rectangular structures adapted to the insert plate 23.

[0045] In order to keep the lock open when installing the adjustable link retainer and to lock the lock firmly onto the crossarm after installation so that the lock remains closed, a locking member 24 is provided for fixing the insert plate 23. The locking member 24 can cooperate with the insert plate 23 to keep the lock in the open and closed state.

[0046] Specifically, the lock member 24 is slidably disposed along the length direction of the first lock plate 21; a first lock part 241 and a second lock part 242 are provided on the lock member 24, and a first latching part 231 and a second latching part 232 are provided on the insert plate 23; the first latching part 231 cooperates with the first lock part 241 to open the lock; the second latching part 232 cooperates with the second lock part 242 to close the lock.

[0047] In this embodiment, the locking member 24 has a plate-like structure and can slide along the upper surface of the first locking plate 21. Side plates 243 extending downwards and sliding along the sides of the first locking plate 21 are provided on both sides of the locking member 24. Small side plates 244 are provided on the inner side of the side plates 243, and these small side plates 244 cooperate with the locking member 24 to form a sliding groove 245. The sliding groove 245 slides along the edge of the first locking plate 21. A latch plate 246 perpendicular to the locking member 24 is provided on the side away from the link fixing arm 3. The first locking part 241 and the second locking part 242 are disposed on the latch plate 246.

[0048] In this embodiment, the first card part 231 is a slot on both sides of the width direction of the insert plate 23, and the first locking part 241 is an insert plate 247 that cooperates with the slots on both sides; the insert plate 247 is disposed on both sides of the locking plate 246.

[0049] The second card part 232 is a card head provided at the end of the insert plate 23, and the second locking part 242 is a card groove 248 that cooperates with the card head.

[0050] The locking head and the insertion port are located at opposite ends of the insertion plate 23. When the lock needs to be kept open, the lock plate can be pulled open so that the insertion port corresponds to the position of the first lock plate 21. Then, the locking member 24 is pushed towards the insertion plate 23 to insert the insertion plate 23 into the insertion port.

[0051] When the crossbeam is installed in the lock, and the lock needs to be kept closed, the insert plate 23 can be pulled so that it passes through the second lock plate 22. Then, the lock piece 24 is pushed to slide towards the insert plate 23, so that the slot 248 is matched with the locking head and the insert plate 23 is fixed, thus keeping the lock closed.

[0052] In addition, the card head can not only cooperate with the card slot 248 to form a limiting structure, but the design of the card head can also facilitate the movement of the insert plate 23.

[0053] In practical use, in order for the locking member 24 to continuously limit the position of the insert plate 23, the fit between the first locking part 231 and the first locking part 241, and between the second locking part 232 and the second locking part 242, can be set as an interference fit, so that the locking member 24 can continuously lock the insert plate 23. In this embodiment, a protrusion 25 is provided on the first locking plate 21; a clamping plate 247 is provided on the locking member 24 to clamp the two sides of the protrusion 25; when the first locking part 231 is engaged with the first locking part 241, the second locking part 232, and the second locking part 242, the clamping plate 247 clamps the two sides of the protrusion 25.

[0054] The protrusion 25 is positioned corresponding to the first through hole 211, which passes through the protrusion 25. The clamping plate 247 can clamp the protrusion 25 on both sides when the first locking part 231 engages with the first locking part 241, the second locking part 232, and the second locking part 242, preventing the clamping plate 247 from disengaging from the protrusion 25, ensuring the locking state of the lock 24 against the insert plate 23, and fixing the lock 24.

[0055] In addition, the protrusion 25 makes the first through hole 211 form a long groove, which ensures that when the insert plate 23 slides along the first through hole 211, the insert plate 23 can remain perpendicular to the first locking plate 21, making it convenient for the insert plate 23 to be inserted into the second through hole 221.

[0056] The operating principle of this application is as follows: First, adjust the extension length of the link fixing arm 3 as needed; remove the fixing bolt 43, and then let the sliding part 31 slide in the base hole 11. When it slides to a specific position, insert the fixing bolt 43 through the second through hole 221 on one side of the fixing base 1, then through the first through hole 211, and finally out from the other side of the fixing base 1 to connect with the nut. This will fix the sliding part 31 to the base hole 11 and prevent relative sliding.

[0057] Then pull the insert plate 23 so that the socket corresponds to the position of the first locking plate 21. Then push the locking piece 24 to slide towards the insert plate 23, inserting the insert plate 23 into the socket, keeping the lock open. Then put the crossbeam into the lock. At the same time, wrap the hook part 32 around the outer wall of the link bar to fix the link in place and prevent the link from falling. After the crossbeam is installed in the lock, the insert plate 23 can be pulled so that it passes through the second lock plate 22. Then, the lock piece 24 is pushed to slide towards the insert plate 23, so that the slot 248 is matched with the card head and the insert plate 23 is fixed, thus keeping the lock in a closed state.

[0058] The adjustable link fastener in this application uses a locking structure 2 to fix it to the crossarm, which is easy to install and can significantly improve installation efficiency compared with existing link fasteners. It can also be adapted to crossarms of different shapes and is firmly installed after being fitted with the crossarm. The length can be adjusted according to the position of the link, making it highly adaptable.

[0059] Example 2: Refer to Figures 1 to 7 As shown, an adjustable link fastener includes: The fixture base 1 includes a locking structure 2 and a base hole 11; the locking structure 2 cooperates with the crossbeam to fix the fixture base 1 on the crossbeam. Link fixing arm 3 includes a sliding part 31 that is slidably disposed in the base hole 11 and a hook part 32 that surrounds the periphery of the link bar; The fixing structure 4 restricts the relative sliding of the sliding part 31 within the base hole 11.

[0060] The sliding part 31 is slidably disposed in the base hole 11, which can adjust the length of the link fixing arm 3. The length of the link fixing arm 3 can be adjusted according to the actual situation to meet various installation requirements. In addition, it can cooperate with the crossarm by means of a locking mechanism, which can improve installation efficiency, reduce labor installation costs, and adapt to crossarms of different shapes, making it more practical.

[0061] The sliding part 31 is elongated, and in this embodiment, the sliding part 31 is cuboid in shape. The base hole 11 is a rectangular hole that mates with the sliding part 31. The rectangular hole mates with the cuboid sliding part 31, which can effectively restrict the relative rotation of the sliding part 31 within the base hole 11.

[0062] In one embodiment, the sliding part 31 is divided into two parts, namely an upper sliding part 311 and a lower sliding part 312. The width of the lower sliding part 312 is greater than the width of the upper sliding part 311. Inside the base hole 11, inner limiting strips 111 are provided on both sides of the base hole 11 along its length direction. When the sliding part 31 slides in the base hole 11, the lower sliding part 312 slides between the inner limiting strip 111 and the side wall of the sliding hole. The inner limiting strip 111 plays a limiting role for the lower sliding part 312.

[0063] A limiting protrusion 313 is provided on the upper end face of the sliding part 31 away from the base hole 11. The limiting protrusion 313 can limit the sliding part 31. When the sliding part 31 slides to the deepest part of the base hole 11, the limiting protrusion 313 abuts against the end of the base hole 11.

[0064] The fixing structure 4 is used to limit the position of the sliding part 31 within the base hole 11. In this embodiment, the fixing structure 4 includes several fixing bolts 43 that are provided with a first hole 41 along the length direction of the sliding part 31, second holes 42 that pass through both sides of the base hole 11, and first holes 41 and second holes 42 that pass through the first holes 41 and second holes 42. The sliding part 31 slides within the base hole 11, the first holes 41 and second holes 42 are provided through the sliding part, and the fixing bolts 43 are connected to the nuts after passing through the first holes 41 and second holes 42.

[0065] Specifically, the first hole 41 is provided in the lower sliding part 312, and several first holes 41 are evenly distributed along the length of the lower sliding part 312. When it is necessary to adjust the extension length of the link fixing arm 3, the fixing bolt 43 can be removed, and then the sliding part 31 can be slid in the base hole 11. When it slides to a specific position, the fixing bolt 43 is inserted from the second hole 42 on one side of the fixing base 1, then through the first hole 41, and finally out from the other side of the fixing base 1 to connect with the nut. This fixes the sliding part 31 to the base hole 11 and prevents relative sliding.

[0066] In one embodiment, the locking structure 2 includes a first locking plate 21, a second locking plate 22 and an insert plate 23 disposed on the retainer base 1. The first locking plate 21 and the second locking plate 22 cooperate to form a locking opening; the insert plate 23 passes through the first locking plate 21 and the second locking plate 22. A locking element 24 is provided on the first locking plate 21 to cooperate with the insert plate 23. The locking element 24 fixes the insert plate 23, and the lock is in an open or closed state.

[0067] In this embodiment, the first locking plate 21 and the second locking plate 22 are located at the upper and lower ends of the fixture base 1, respectively, and the first locking plate 21 and the second locking plate 22 are arranged in parallel. The first locking plate 21 and the second locking plate 22 cooperate to form a locking opening. The first locking plate 21, the second locking plate 22 and the hook portion 32 are located at both ends of the fixture base 1, respectively.

[0068] A first through hole 211 is provided on the first locking plate 21, and a second through hole 221 is provided on the second locking plate 22. The insert plate 23 passes through the first through hole 211 from above the first locking plate 21 and then exits through the second through hole 221, closing the lock formed by the first locking plate 21 and the second locking plate 22. In this embodiment, the cross-section of the insert plate 23 is rectangular, therefore the first through hole 211 and the second through hole 221 are both set as rectangular structures adapted to the insert plate 23.

[0069] In order to keep the lock open when installing the adjustable link retainer and to lock the lock firmly onto the crossarm after installation so that the lock remains closed, a locking member 24 is provided for fixing the insert plate 23. The locking member 24 can cooperate with the insert plate 23 to keep the lock in the open and closed state.

[0070] Specifically, the lock member 24 is slidably disposed along the length direction of the first lock plate 21; a first lock part 241 and a second lock part 242 are provided on the lock member 24, and a first latching part 231 and a second latching part 232 are provided on the insert plate 23; the first latching part 231 cooperates with the first lock part 241 to open the lock; the second latching part 232 cooperates with the second lock part 242 to close the lock.

[0071] In this embodiment, the locking member 24 has a plate-like structure and can slide along the upper surface of the first locking plate 21. Side plates 243 extending downwards and sliding along the sides of the first locking plate 21 are provided on both sides of the locking member 24. Small side plates 244 are provided on the inner side of the side plates 243, and these small side plates 244 cooperate with the locking member 24 to form a sliding groove 245. The sliding groove 245 slides along the edge of the first locking plate 21. A latch plate 246 perpendicular to the locking member 24 is provided on the side away from the link fixing arm 3. The first locking part 241 and the second locking part 242 are disposed on the latch plate 246.

[0072] In this embodiment, the first card part 231 is a slot on both sides of the width direction of the insert plate 23, and the first locking part 241 is an insert plate 247 that cooperates with the slots on both sides; the insert plate 247 is disposed on both sides of the locking plate 246.

[0073] The second card part 232 is a card head provided at the end of the insert plate 23, and the second locking part 242 is a card groove 248 that cooperates with the card head.

[0074] The locking head and the insertion port are located at opposite ends of the insertion plate 23. When the lock needs to be kept open, the lock plate can be pulled open so that the insertion port corresponds to the position of the first lock plate 21. Then, the locking member 24 is pushed towards the insertion plate 23 to insert the insertion plate 23 into the insertion port.

[0075] When the crossbeam is installed in the lock, and the lock needs to be kept closed, the insert plate 23 can be pulled so that it passes through the second lock plate 22. Then, the lock piece 24 is pushed to slide towards the insert plate 23, so that the slot 248 is matched with the locking head and the insert plate 23 is fixed, thus keeping the lock closed.

[0076] In addition, the card head can not only cooperate with the card slot 248 to form a limiting structure, but the design of the card head can also facilitate the movement of the insert plate 23.

[0077] In practical use, in order for the locking member 24 to continuously limit the position of the insert plate 23, the fit between the first locking part 231 and the first locking part 241, and between the second locking part 232 and the second locking part 242, can be set as an interference fit, so that the locking member 24 can continuously lock the insert plate 23. In this embodiment, a protrusion 25 is provided on the first locking plate 21; a clamping plate 247 is provided on the locking member 24 to clamp the two sides of the protrusion 25; when the first locking part 231 is engaged with the first locking part 241, the second locking part 232, and the second locking part 242, the clamping plate 247 clamps the two sides of the protrusion 25.

[0078] The protrusion 25 is positioned corresponding to the first through hole 211, which passes through the protrusion 25. The clamping plate 247 can clamp the protrusion 25 on both sides when the first locking part 231 engages with the first locking part 241, the second locking part 232, and the second locking part 242, preventing the clamping plate 247 from disengaging from the protrusion 25, ensuring the locking state of the lock 24 against the insert plate 23, and fixing the lock 24.

[0079] In addition, the protrusion 25 makes the first through hole 211 form a long groove, which ensures that when the insert plate 23 slides along the first through hole 211, the insert plate 23 can remain perpendicular to the first locking plate 21, making it convenient for the insert plate 23 to be inserted into the second through hole 221.

[0080] The operating principle of this application is as follows: First, adjust the extension length of the link fixing arm 3 as needed; remove the fixing bolt 43, and then let the sliding part 31 slide in the base hole 11. When it slides to a specific position, insert the fixing bolt 43 through the second through hole 221 on one side of the fixing base 1, then through the first through hole 211, and finally out from the other side of the fixing base 1 to connect with the nut. This will fix the sliding part 31 to the base hole 11 and prevent relative sliding.

[0081] Then pull the insert plate 23 so that the socket corresponds to the position of the first locking plate 21. Then push the locking piece 24 to slide towards the insert plate 23, inserting the insert plate 23 into the socket, keeping the lock open. Then put the crossbeam into the lock. At the same time, wrap the hook part 32 around the outer wall of the link bar to fix the link in place and prevent the link from falling. After the crossbeam is installed in the lock, the insert plate 23 can be pulled so that it passes through the second lock plate 22. Then, the lock piece 24 is pushed to slide towards the insert plate 23, so that the slot 248 is matched with the card head and the insert plate 23 is fixed, thus keeping the lock in a closed state.

[0082] Reference Figures 1 to 7 As shown, this embodiment is similar to the structure in embodiment 1. The difference is that in embodiment 1, the sliding part 31 and the base hole 11 cooperate to form a first-level telescopic structure. Although this telescopic structure can adjust the length of the link fixed arm 3 so that it can be adjusted according to the actual situation, the fixing bolt 43 needs to be removed during the adjustment process, which is inconvenient. In addition, the spacing between several first through holes 211 is large, which cannot achieve continuous and stepless adjustment of the length of the link fixed arm 3.

[0083] Therefore, in this embodiment, a two-stage telescopic structure is provided. Specifically, the Link fixed arm 3 also includes a fixed arm base 33, a sliding arm 34, and a locking component 5; the fixed arm base 33, the sliding arm 34, and the locking component 5 cooperate to form a two-stage telescopic structure, which extends the range of extension and has a wider range of applications.

[0084] Specifically, an adjustment hole 331 is provided on the fixed arm base 33. The setting direction and opening direction of the adjustment hole 331 are the same as the direction of the base hole 11. The sliding arm 34 slides in the adjustment hole 331.

[0085] The sliding part 31 is provided on the fixed arm base 33; the hook part 32 is provided at the end of the sliding arm 34 away from the adjustment hole 331.

[0086] Locking component 5 restricts the movement of sliding arm 34 within adjustment hole 331.

[0087] The fixed arm base 33 is hollow, and an adjustment hole 331 is formed inside the fixed arm base 33. Guide strips 332 are provided on both sides of the adjustment hole 331, and guide grooves 341 that cooperate with the guide strips 332 are provided on both sides of the sliding arm 34. When the sliding arm 34 slides in the adjustment hole 331, the guide grooves 341 slide along the guide strips 332, making the sliding arm 34 slide more stably in the adjustment hole 331.

[0088] In one embodiment, the locking assembly 5 includes a locking plate 51 and a locking limiting plate 52. The end of the locking plate 51 is provided with an engaging portion that engages with the side wall of the sliding arm 34. The locking limiting plate 52 is inserted into the side wall groove 512 of the locking plate 51 to restrict the movement of the locking plate 51, so that the locking plate 51 and the sliding arm 34 remain engaged.

[0089] To enable stepless adjustment of the extension length of the sliding arm 34, a rack 342 is provided on the side wall of the sliding arm 34 along its length direction in this embodiment. A locking tooth 511, which meshes with the rack 342, is provided at the end of the locking plate 51. When the end of the locking plate 51 abuts against the sliding arm 34 and the rack 342 and the locking tooth 511 mesh, the sliding arm 34 is limited. When the locking plate 51 is separated from the sliding arm 34, the limiting effect disappears, and the sliding arm 34 can slide normally within the adjustment hole 331, adjusting the extension state of the sliding arm 34.

[0090] The locking limit plate 52 is used to keep the locking plate 51 in contact with the sliding arm 34. When the locking limit plate 52 is inserted into the side wall groove 512, the locking limit plate 52 restricts the sliding of the locking plate 51. The rack 342 meshes with the locking tooth 511, and the limit plate locks the sliding arm 34. When the locking limit plate 52 is disengaged from the side wall groove 512, the locking plate 51 can slide, and the rack 342 separates from the locking tooth 511, so that the sliding distance of the sliding arm 34 in the adjustment hole 331 can be adjusted.

[0091] The fixed arm base 33 is provided with a first mounting hole 333 and a second mounting hole 334.

[0092] The first mounting hole 333 is connected to the side wall of the adjustment hole 331, and the first mounting hole 333 is perpendicular to the adjustment hole 331. The locking plate 51 is slidably disposed in the first mounting hole 333. The end of the locking plate 51 away from the sliding arm 34 extends from the bottom of the first mounting hole 333 and is provided with a pull ring 513, which facilitates pulling or pushing the locking plate 51 to slide in the first mounting hole 333.

[0093] The second mounting hole 334 is connected to the side wall of the first mounting hole 333, and the second mounting hole 334 is perpendicular to the side wall of the first mounting hole 333. The locking limit plate 52 is slidably disposed in the second mounting hole 334. The end of the locking limit plate 52 away from the locking plate 51 extends out of the second mounting hole 334 and is provided with a push-pull plate 521 to facilitate pushing and pulling the locking limit plate 52.

[0094] In this embodiment, the locking limiting plate 52 and the side wall groove 512 of the locking plate 51 are interference-fitted. Therefore, when the locking limiting plate 52 is inserted into the side wall groove 512, the locking limiting plate 52 will not easily fall out of the side wall groove 512, thus continuously limiting the locking plate 51. Alternatively, a tension spring can be provided between the push-pull plate 521 and the fixed arm base 33, continuously pulling the push-pull plate 521 towards the side wall groove 512, which can also achieve the above purpose.

[0095] The adjustable link fastener in this application uses a locking structure 2 to fix it to the crossarm, which is easy to install and can significantly improve installation efficiency compared with existing link fasteners. It can also be adapted to crossarms of different shapes and is firmly installed after being fitted with the crossarm. The length can be adjusted according to the position of the link, making it highly adaptable.

[0096] Example 3: This example is similar in structure to Example 1 or Example 2, except that the base 1 of the fixture is also provided with two insertion holes 6, and the side wall of the insertion hole 6 is provided with a vertical groove along the axis of the perforation. The insertion holes 6 facilitate the use of tools to move the adjustable link fixture to the crossbeam for installation.

[0097] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications may be made without departing from the technical solutions described in the claims.

Claims

1. An adjustable link retainer, characterized in that, include: The retainer base includes a locking mechanism and a base hole; The locking mechanism works with the crossbeam to fix the fixture base onto the crossbeam; Link fixing arm, including a sliding part that is slidably disposed in the base hole and a hook part that surrounds the periphery of the link bar; A fixed structure restricts the relative sliding of the sliding part within the base hole.

2. The adjustable link retainer according to claim 1, characterized in that, Link's fixed arm also includes a fixed arm base, a sliding arm, and a locking assembly; An adjustment hole is provided on the fixed arm base, and the direction of the adjustment hole is the same as the direction of the hole in the base. The sliding arm slides within the adjustment hole. The sliding part is located on the base of the fixed arm; the hook part is located at the end of the sliding arm away from the adjustment hole. The locking component restricts the movement of the sliding arm within the adjustment hole.

3. The adjustable link retainer according to claim 1, characterized in that, The locking structure includes a first locking plate, a second locking plate, and a insert plate disposed on the base of the retainer. The first locking plate and the second locking plate cooperate to form a locking opening. The insert plate passes through the first locking plate and the second locking plate. The first lock plate is equipped with a locking element that cooperates with the insert plate. The locking element fixes the insert plate, and the lock opening is in an open or closed state.

4. The adjustable link retainer according to claim 3, characterized in that, The lock is slidably disposed along the length of the first lock plate; the lock has a first locking part and a second locking part, and the insert plate has a first locking part and a second locking part; the first locking part cooperates with the first locking part to open the lock; the second locking part cooperates with the second locking part to close the lock.

5. The adjustable link retainer according to claim 4, characterized in that, The first card part is a slot on both sides in the width direction of the insert plate, and the first locking part is an insert plate that cooperates with the slots on both sides; The second card part is a card head located at the end of the insert plate, and the second locking part is a card slot that cooperates with the card head.

6. The adjustable link retainer according to claim 5, characterized in that, A protrusion is provided on the first locking plate; a clamping plate is provided on the locking component to clamp the protrusion on both sides; when the first locking part cooperates with the first locking part, the second locking part and the second locking part, the clamping plate clamps the protrusion on both sides.

7. The adjustable linker according to any one of claims 2 to 6, characterized in that, The locking components include: The locking plate has an engagement part at its end, which engages with the side wall of the sliding arm; The locking limit plate is inserted into the side wall groove of the locking plate to restrict the movement of the locking plate, so that the locking plate and the sliding arm remain engaged.

8. The adjustable link retainer according to claim 7, characterized in that, The fixed arm base is provided with a first mounting hole and a second mounting hole; The first mounting hole is connected to the side wall of the adjustment hole, and the locking plate is slidably set in the first mounting hole; The second mounting hole is connected to the side wall of the first mounting hole, and the locking limit plate is slidably disposed in the second mounting hole.

9. The adjustable link retainer according to claim 7, characterized in that, The locking limit plate and the side wall groove of the locking plate are interference fit.

10. The adjustable linker according to any one of claims 1 to 6, characterized in that, The fixing structure includes several fixing bolts with a first hole along the length of the sliding part, a second hole on both sides of the base hole, and fixing bolts passing through the first and second holes; the sliding part slides in the base hole, and the fixing bolts are connected to the nuts after passing through the first and second holes.

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