Auxiliary support insulating cross arm for insulated bucket truck

Abstract

The utility model discloses an auxiliary support insulating cross arm for insulating bucket arm car relates to insulating cross arm technical field, including first clamping plate, first fixed peg, insulating pole, connecting head and connecting groove, first clamping plate side sets up limiting mechanism, limiting mechanism includes second fixed peg, second clamping plate, adjusting clamp, spring, third fixed peg and guide rod, the guide rod is installed in second clamping plate side, the spring is installed in guide rod side, adjusting clamp is installed in second clamping plate side, third fixed peg is installed in adjusting clamp side, second fixed peg is installed in first clamping plate side, adjusting clamp and the midline sliding connection of second clamping plate, can be according to bucket arm car component specification flexible adjustment position, adapts to different vehicle models, and the left side equilateral triangle included angle can closely fit component and prevent skidding, and the right side rectangular round peg head then avoids sharp edge to scratch operator, and the man-machine interaction safety is promoted.

Description

Technical Field

[0001] This utility model relates to the field of insulating crossarm technology, specifically to an insulating crossarm for an auxiliary support of an insulating bucket arm vehicle. Background Technology

[0002] The insulated crossarm of the insulated bucket truck is a key equipment accessory designed specifically for live-line work in power systems. Its main function is to enhance the stability and safety of the insulated bucket truck when working at height, while also providing temporary conductor support. Among them, the "Adjustable Composite Insulating Crossarm" with application number CN202421978898.5 can not only adjust and fix the position of the insulating sleeve on the insulating frame, but also maintain the stability of the position of the insulating sleeve through the first fixing component, and facilitate its disassembly; however, the crossarm is not equipped with a clamping adjustment mechanism and is only suitable for static support scenarios of fixed towers, which cannot meet the dynamic clamping requirements of mobile equipment such as insulated bucket trucks. Based on this, this solution proposes "an insulated crossarm for an insulated bucket boom vehicle auxiliary support" to solve the above problems. Utility Model Content

[0003] The purpose of this utility model is to provide an auxiliary support insulating crossarm for insulated bucket trucks, so as to solve the problem mentioned in the background art that the existing equipment on the market does not have a clamping adjustment mechanism and cannot meet the dynamic clamping requirements of mobile equipment such as insulated bucket trucks.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an insulating crossarm for an insulated bucket arm vehicle, comprising a first clamping plate, a first fixing bolt, an insulating rod, a connector, and a connecting groove; A limiting mechanism is provided on the side of the first clamping plate. The limiting mechanism includes a second fixing bolt, a second clamping plate, an adjusting clamp, a spring, a third fixing bolt, and a guide rod. The guide rod is installed on the side of the second clamping plate, the spring is installed on the side of the guide rod, the adjusting clamp is installed on the side of the second clamping plate, the third fixing bolt is installed on the side of the adjusting clamp, and the second fixing bolt is installed on the side of the first clamping plate.

[0005] As a preferred technical solution of this utility model, the first clamping plate is fixedly connected to the side of the first fixing bolt, and there are four first fixing bolts distributed in a rectangular shape. The first clamping plate is an arc-shaped structure as a whole, and connecting grooves are opened on both sides of the first clamping plate. There are four connecting grooves distributed symmetrically, and the connecting grooves are rectangular structures. Using the above technical solution, the first clamp plate has four rectangular fixing bolts fixedly connected to its side. The overall structure is arc-shaped with four symmetrically distributed rectangular connecting slots on both sides. The arc-shaped first clamp plate can better fit the support parts of the insulated bucket truck, increase the contact area to reduce local pressure, and avoid damage to the bucket truck components. The four rectangularly distributed first fixing bolts can achieve multi-point uniform force distribution, improve the stability of the connection between the first clamp plate and components such as the insulating rod, and prevent the single fixing bolt from breaking due to overload. The four symmetrical rectangular connecting slots can not only provide precise positioning for subsequent assembly and reduce assembly adjustment time, but also be compatible with connectors of different specifications, improving assembly efficiency and equipment compatibility.

[0006] As a preferred technical solution of this utility model, the side of the first clamping plate is rotatably connected to the second fixing bolt, the second fixing bolt is a double T-shaped combination structure, and the surface of the second fixing bolt is an external thread structure; Using the above technical solution, the first clamping plate is rotatably connected to the second fixing bolt on its side. The second fixing bolt has a double T-shaped combination structure and an external thread structure on its surface. The rotatable connection allows the second fixing bolt to flexibly adjust its orientation according to the installation angle of the second clamping plate and the space conditions of the bucket truck support, adapting to complex installation scenarios. The double T-shaped combination structure can increase the contact area with the second clamping plate, enhance the clamping force, and form an axial limit to prevent the second clamping plate from slipping. The external thread structure can form a tight threaded fit with related components, has good self-locking properties, and avoids the second fixing bolt from loosening due to vibration and other factors, ensuring the connection is firm.

[0007] As a preferred technical solution of this utility model, the first clamping plate is connected to the insulating rod by the first fixing bolt. The insulating rod is a rectangular structure in whole, and the right end of the insulating rod is fixedly connected to the connector. The connector is a double U-shaped vertically stacked structure. Using the above technical solution, the first clamping plate is connected to the overall rectangular insulating rod through the first fixing bolt, and the right end of the insulating rod is fixedly connected to the connector with a double U-shaped vertically stacked structure. Compared with the circular insulating rod, the rectangular insulating rod has a larger moment of inertia, stronger resistance to bending and torsion, and can withstand greater lateral loads, meeting the load-bearing requirements of high-voltage operations. The connection method of the first fixing bolt can avoid loose gaps between the insulating rod and the metal parts, ensuring insulation performance. The double U-shaped vertically stacked connector can provide a bidirectional connection interface to adapt to different operational needs. At the same time, the U-shaped structure can absorb the impact force generated by the swaying of the conductor and the vibration of the bucket truck, reducing damage to the overall structure of the crossarm and extending its service life.

[0008] As a preferred embodiment of this utility model, the first clamping plate is connected to the second clamping plate by the second fixing bolt, the second clamping plate has a connecting groove on its side that is the same as that of the first clamping plate, and the second fixing bolt is connected to the third fixing bolt on its side. Using the above technical solution, the first clamping plate is connected to the second clamping plate through the second fixing bolt. The second clamping plate has the same connecting groove as the first clamping plate on its side, and the second fixing bolt is connected to the third fixing bolt on its side. The cooperation between the first clamping plate and the second clamping plate forms a bidirectional clamping of the support part of the bucket truck, which evenly distributes the clamping force on both sides of the component, avoiding component displacement or loosening caused by unilateral force. The same connecting groove between the second clamping plate and the first clamping plate realizes structural standardization, reduces the types of processing molds to reduce costs, and simplifies the assembly process to reduce assembly errors. The third fixing bolt connected to the side of the second fixing bolt forms a double protection of main fixing and auxiliary limiting. Even if the threads of the second fixing bolt wear, the third fixing bolt can prevent it from coming out, improving safety redundancy.

[0009] As a preferred technical solution of this utility model, the adjustment clip is slidably connected to the center line of the second clamping plate, the left side of the adjustment clip is provided with the included angle of an equilateral triangle, the right side of the adjustment clip is fixedly connected with a rectangular rounded corner bolt to improve human-machine efficiency, and the side of the second clamping plate is fixedly connected with a guide rod. Using the above technical solution, an adjusting clamp is slidably connected to the center of the second clamping plate. The left side of the adjusting clamp has an equilateral triangular angle, and the right side is fixedly connected to a rectangular rounded corner bolt. A guide rod is fixedly connected to the side of the second clamping plate. The sliding connection between the adjusting clamp and the second clamping plate can be flexibly adjusted according to the specifications of the clamped parts of the bucket truck, improving the versatility of the crossarm and eliminating the need for separate design for different vehicle models. The equilateral triangular angle on the left side of the adjusting clamp can closely fit the surface of the part, increasing friction and preventing slippage. The rectangular rounded corner bolt on the right side can prevent sharp edges from scratching the operator, improving human-machine interaction safety, and facilitating gripping and operation. The guide rod on the side of the second clamping plate can linearly guide the sliding trajectory of the adjusting clamp, preventing the adjusting clamp from deviating and ensuring adjustment accuracy and structural stability.

[0010] As a preferred embodiment of this utility model, the guide rod consists of two parts: the middle part of the guide rod is a U-shaped fixing block, the two ends of the guide rod are round rods, and a spring is fitted on the outside of the guide rod. The guide rod is slidably connected to the adjusting clamp, and the side of the adjusting clamp holds a third fixing bolt for limiting the position.

[0011] The above technical solution consists of two parts: a U-shaped fixing block in the middle and round rods at both ends. A spring is fitted on the outer side of the guide rod, which slides in connection with the adjusting clamp. The adjusting clamp holds the third fixing bolt for limitation. The U-shaped fixing block in the middle of the guide rod can form surface contact with the second clamping plate for fixation, improving the fixing firmness and preventing the guide rod from shaking. The round rod structure at both ends reduces the sliding friction resistance with the adjusting clamp, making the adjusting clamp slide more smoothly and reducing component wear. The spring fitted on the outer side generates a preload after the adjusting clamp is adjusted to the correct position, stabilizing the adjusting clamp in the set position and preventing displacement due to vibration. It also absorbs impact loads and protects related components. The adjusting clamp holds the third fixing bolt to form a mechanical lock, restricting the axial rotation and movement of the third fixing bolt, preventing it from loosening or falling off, and ensuring the safety of the crossbeam support.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The first clamping plate adopts an arc-shaped structure, which can fit tightly against the support part of the boom truck, avoiding scratches on the parts caused by hard contact. At the same time, the four rectangular first fixing bolts can evenly distribute the load and prevent the single bolt from breaking due to overload. Combined with symmetrical rectangular connecting grooves, it can improve the assembly positioning accuracy, reduce adjustment time, and be compatible with different connecting parts, adapting to various installation scenarios. The rotating connection design of the second fixing bolt can flexibly adjust the angle. The double T-shaped combination structure enhances the clamping force on the second clamping plate and prevents slippage, while the external thread ensures a tight connection and avoids loosening caused by vibration. 2. Compared with traditional round poles, rectangular insulating poles have stronger resistance to bending and torsion, and can withstand lateral loads in high-voltage operations. They are also firmly connected to the first clamping plate by the first fixing bolt, avoiding gaps that could affect insulation performance and ensuring operational safety. The double U-shaped vertically stacked connectors provide bidirectional connection interfaces to adapt to different needs such as wire hooks and auxiliary supports. At the same time, the U-shaped structure can absorb the impact force generated by wire swaying and bucket truck vibration, reducing damage to the crossarm as a whole and extending its service life. 3. The first clamping plate and the second clamping plate form a bidirectional clamping through the second fixing bolt, which evenly distributes the force on both sides of the clamped part and prevents displacement caused by unilateral force. The second clamping plate and the first clamping plate have the same connecting groove to achieve structural standardization, reduce the cost of processing molds and reduce the assembly error rate. The third fixing bolt connected to the side of the second fixing bolt forms a double protection of "main fixing + auxiliary limiting". Even if the thread of the second fixing bolt is worn, it can prevent it from coming out, which greatly improves the redundancy of operation safety. 4. The centerline of the adjusting clamp and the second clamping plate is slidably connected, and the position can be flexibly adjusted according to the specifications of the bucket truck components to adapt to different models. The equilateral triangular angle on the left side can fit tightly with the components to prevent slippage, while the rectangular rounded corner bolt head on the right side avoids sharp edges from scratching the operator, improving the safety of human-machine interaction. The U-shaped fixing block of the guide rod ensures a firm connection with the second clamping plate, the round rods at both ends reduce sliding friction, the outer spring can pre-tighten the adjusting clamp to prevent displacement and buffer impact, and the clamping and locking of the adjusting clamp to the third fixing bolt further prevents it from loosening and falling off. Overall, it ensures that the crossarm is stable, safe and practical in high-pressure operations. Attached Figure Description

[0013] Figure 1 This is a side view of the structure of this utility model; Figure 2 This is a schematic diagram of the insulating rod and connector structure of this utility model; Figure 3 This is a schematic diagram of the second clamping plate and adjusting clamp structure of this utility model; Figure 4 This is a schematic diagram of the first clamping plate and the first fixing bolt structure of this utility model; Figure 5 This is a side view of the insulating rod structure of this utility model; Figure 6 This is a side view of the second clamping plate of this utility model.

[0014] In the diagram: 1. First clamping plate; 2. First fixing bolt; 3. Insulating rod; 4. Connector; 5. Second fixing bolt; 6. Second clamping plate; 7. Adjusting clamp; 8. Spring; 9. Third fixing bolt; 10. Guide rod; 11. Connecting groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-6The technical solution of this utility model is as follows: four rectangularly distributed first fixing bolts 2 are fixedly connected to the side of the first clamping plate 1. The first clamping plate 1 has an arc-shaped structure and four symmetrically distributed rectangular connecting slots 11 on both sides. The arc-shaped structure of the first clamping plate 1 can fit more tightly to the support part of the insulated bucket truck, reduce local pressure by increasing the contact area, and avoid damage to the bucket truck components. The four rectangularly distributed first fixing bolts 2 can achieve multi-point uniform force, enhance the connection stability between the first clamping plate 1 and the insulating rod 3 and other components, and prevent a single fixing bolt from breaking due to overload. The four symmetrical rectangular connecting slots 11 can provide precise positioning for subsequent assembly, reduce adjustment time, and are compatible with different specifications of connecting parts, effectively improving assembly efficiency and equipment adaptability. The first clamping plate 1 is rotatably connected to the second fixing bolt 5 on its side. The second fixing bolt 5 has a double T-shaped combination structure and its surface has an external thread structure. The first clamping plate 1 is rotatably connected to the second fixing bolt 5. The second fixing bolt 5 is designed with a double T-shaped combination structure and has an external thread on its surface. The rotatable connection method allows the second fixing bolt 5 to flexibly adjust its orientation according to the installation angle of the second clamping plate 6 and the space conditions of the bucket truck support part, adapting to complex installation scenarios. The double T-shaped combination structure can increase the contact area with the second clamping plate 6, which not only enhances the clamping force but also forms an axial limit to prevent the second clamping plate 6 from slipping off. The external thread structure can form a tight threaded fit with related components. With its good self-locking property, it can prevent the second fixing bolt 5 from loosening due to vibration and other factors, ensuring the connection is firm. The first clamping plate 1 is connected to the insulating rod 3 via the first fixing bolt 2. The insulating rod 3 has a rectangular structure, and its right end is fixedly connected to the connector 4 with a double U-shaped vertically stacked structure. The first clamping plate 1 is connected to the rectangular insulating rod 3 via the first fixing bolt 2. The right end of the insulating rod 3 is fixed with the double U-shaped vertically stacked connector 4. Compared with the circular insulating rod 3, the rectangular insulating rod 3 has a larger moment of inertia, stronger resistance to bending and torsion, and can withstand greater lateral loads, meeting the load-bearing requirements of high-voltage operations. The connection method of the first fixing bolt 2 can avoid loose gaps between the insulating rod 3 and the metal parts, ensuring insulation performance. The double U-shaped vertically stacked connector 4 can provide a bidirectional connection interface to adapt to different operating requirements. At the same time, the U-shaped structure can absorb the impact force generated by the swaying of the conductor and the vibration of the bucket truck, reducing damage to the overall structure of the crossarm and extending the service life of the equipment. The first clamping plate 1 is connected to the second clamping plate 6 via the second fixing bolt 5. The second clamping plate 6 has a connecting groove 11 on its side, identical to that of the first clamping plate 1. The second fixing bolt 5 is connected to the third fixing bolt 9 on its side. The cooperation between the first clamping plate 1 and the second clamping plate 6 forms a bidirectional clamping of the boom truck support, evenly distributing the clamping force on both sides of the component, avoiding component displacement or loosening caused by unilateral force. The identical connecting groove 11 of the second clamping plate 6 and the first clamping plate 1 achieves structural standardization, reduces the types of processing molds, thereby reducing production costs, and simplifies the assembly process, reducing assembly errors. The third fixing bolt 9 connected to the side of the second fixing bolt 5 forms a dual protection of "main fixing + auxiliary limiting". Even if the threads of the second fixing bolt 5 wear, the third fixing bolt 9 can prevent it from coming out, effectively improving safety redundancy. The second clamping plate 6 is slidably connected to the adjusting clamp 7 at its centerline. The left side of the adjusting clamp 7 has an equilateral triangular angle, and the right side is fixedly connected to a rectangular rounded corner bolt to improve ergonomics. The second clamping plate 6 is also fixedly connected to the side of the guide rod 10. The sliding connection between the adjusting clamp 7 and the second clamping plate 6 allows for flexible adjustment of the position according to the specifications of the clamped parts of the bucket truck, improving the versatility of the crossarm and eliminating the need for separate design for different vehicle models. The equilateral triangular angle on the left side of the adjusting clamp 7 can closely fit the surface of the part, increasing friction and preventing slippage. The rectangular rounded corner bolt on the right side can prevent sharp edges from scratching the operator, improving the safety of human-machine interaction and facilitating the operator's grip and operation. The guide rod 10 on the side of the second clamping plate 6 can linearly guide the sliding trajectory of the adjusting clamp 7, preventing the adjusting clamp 7 from deviating and ensuring adjustment accuracy and structural stability. The guide rod 10 consists of two parts: a U-shaped fixing block in the middle and round rods at both ends. Springs 8 are fitted onto the outer side of the guide rod 10. The guide rod 10 is slidably connected to the adjusting clamp 7. The adjusting clamp 7 achieves limiting by clamping the third fixing bolt 9 on its side. The U-shaped fixing block in the middle of the guide rod 10 can form surface contact with the second clamping plate 6 for fixation, enhancing the fixing firmness. The guide rod 10 is fixed to prevent it from shaking during use; the round rod structure at both ends reduces the sliding friction resistance with the adjusting clamp 7, making the adjusting clamp 7 slide more smoothly and reducing component wear; the spring 8 on the outer side can generate a preload after the adjusting clamp 7 is adjusted to the position, stabilizing the adjusting clamp 7 in the set position, preventing the adjusting clamp 7 from shifting due to vibration, and at the same time absorbing impact loads to protect related components; the clamping of the adjusting clamp 7 on the third fixing bolt 9 can form a mechanical lock, restricting the axial rotation and movement of the third fixing bolt 9, preventing it from loosening or falling off, and ensuring the safety of the crossarm support.

[0017] Working principle: When using an auxiliary support insulated crossarm for an insulated bucket truck, the crossarm is first firmly fixed to the insulated bucket truck through the synergistic action of the first clamping plate 1 and the second clamping plate 6. The arc-shaped structure of the first clamping plate 1 can closely fit the support part of the bucket truck, increasing the contact area to avoid damage to the components. The symmetrical rectangular connecting grooves 11 on both sides can quickly align with the corresponding grooves of the second clamping plate 6, reducing positioning time. The second fixing bolt 5, which is rotatably connected to the side of the first clamping plate 1, can flexibly adjust the angle. The double T-shaped combination structure enhances the clamping force on the second clamping plate 6 and prevents it from falling off. The external thread prevents loosening due to vibration through self-locking. Together with the third fixing bolt 9 on the side of the second fixing bolt 5, it forms double protection to prevent the failure of a single fixing component and lay a stable foundation for subsequent operations. Secondly, the assembly of the insulating rod 3 and the connector 4 is completed by the first fixing bolt 2, and the support core is built. The four rectangular first fixing bolts 2 firmly fix the rectangular insulating rod 3 to the first clamping plate 1. Due to its larger cross-sectional moment of inertia, the rectangular insulating rod 3 has stronger resistance to bending and torsion, and can withstand the lateral load in high-voltage operation. The double U-shaped vertically stacked connector 4 on the right side of the insulating rod 3 can provide a bidirectional interface to adapt to wire hooks or auxiliary support components. The U-shaped structure can absorb the impact force of wire swaying and bucket truck vibration. At the same time, the tight connection of the first fixing bolts 2 avoids gaps between the insulating rod 3 and the metal parts, ensuring insulation performance. Furthermore, the adjusting clip 7, guide rod 10, and spring 8 work together to achieve flexible adaptation and limiting. The adjusting clip 7 slides along the centerline of the second clamping plate 6. Under the low-friction guidance of the round rods at both ends of the guide rod 10, the operator can push the adjusting clip 7 through the rectangular rounded corner bolt head on the right side to improve human-machine safety and ease of operation, so that the equilateral triangle angle on its left side fits tightly against the support part of the boom truck. The triangular structure increases friction to prevent slippage. After the spring 8 on the outside of the guide rod 10 is adjusted to the position, it generates a pre-tightening force to fix the position of the adjusting clip 7. The side of the adjusting clip 7 clamps the third fixing bolt 9 to form a mechanical lock, restricting its rotation and movement, and ensuring the stability of the structure after adjustment. Finally, during operation, the overall structure provides safety support and protection. The rectangular insulating rod 3 evenly distributes the load of the conductor or equipment to the first clamping plate 1 via the first fixing bolt 2, and then transfers it to the boom truck, avoiding local overload. The tight connection of each component and the insulation characteristics of the insulating rod 3 block the leakage path and ensure electrical safety. The U-shaped structure of the connector 4 and the spring 8 on the outside of the guide rod 10 form a double buffer to absorb impact loads and reduce structural fatigue damage, ultimately achieving the functional requirements of "stable support, safe insulation, and flexible adaptation" in high-voltage operations.

[0018] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An insulating crossarm for an insulated bucket boom vehicle, comprising a first clamping plate (1); characterized in that: A limiting mechanism is provided on the side of the first clamping plate (1). The limiting mechanism includes a second fixing bolt (5), a second clamping plate (6), an adjusting clamp (7), a spring (8), a third fixing bolt (9), and a guide rod (10). The guide rod (10) is installed on the side of the second clamping plate (6), the spring (8) is installed on the side of the guide rod (10), the adjusting clamp (7) is installed on the side of the second clamping plate (6), the third fixing bolt (9) is installed on the side of the adjusting clamp (7), and the second fixing bolt (5) is installed on the side of the first clamping plate (1).

2. The insulating crossarm for an insulated bucket boom truck as described in claim 1, characterized in that, The first clamp (1) is fixedly connected to the first fixing bolt (2) on the side. There are four first fixing bolts (2) in a rectangular distribution. The first clamp (1) is an arc-shaped structure. Connecting grooves (11) are opened on both sides of the first clamp (1). There are four connecting grooves (11) in a symmetrical distribution. The connecting grooves (11) are rectangular structures.

3. The insulating crossarm for an insulated bucket boom truck according to claim 2, characterized in that, The first clamp (1) is rotatably connected to the second fixing bolt (5) on its side. The second fixing bolt (5) is a double T-shaped combination structure, and the surface of the second fixing bolt (5) is an external thread structure.

4. The insulating crossarm for an insulated bucket boom truck according to claim 3, characterized in that, The first clamp (1) is connected to the insulating rod (3) by the first fixing bolt (2). The insulating rod (3) is a rectangular structure, and the right end of the insulating rod (3) is fixedly connected to the connector (4). The connector (4) is a double U-shaped vertical stacked structure.

5. An insulating crossarm for an insulated bucket boom vehicle as described in claim 4, characterized in that, The first clamp (1) is connected to the second clamp (6) by the second fixing bolt (5). The second clamp (6) has the same connecting groove (11) as the first clamp (1) on its side. The second fixing bolt (5) is connected to the third fixing bolt (9) on its side.

6. An insulating crossarm for an insulated bucket boom truck as described in claim 5, characterized in that, The second clamp (6) is slidably connected to the adjusting clamp (7) at the center line position. The left side of the adjusting clamp (7) is provided with the included angle of an equilateral triangle. The right side of the adjusting clamp (7) is fixedly connected to a rectangular rounded corner bolt to improve human-machine efficiency. The second clamp (6) is fixedly connected to the guide rod (10) on the side.

7. An insulating crossarm for an insulated bucket boom vehicle according to claim 6, characterized in that, The guide rod (10) consists of two parts. The middle part of the guide rod (10) is a U-shaped fixing block, and the two ends of the guide rod (10) are round rods. A spring (8) is fitted on the outside of the guide rod (10). The guide rod (10) is slidably connected to the adjusting clamp (7). The adjusting clamp (7) holds a third fixing bolt (9) on its side for limiting the position.

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