A pole iron piece for connecting a pole head cross arm

Abstract

This utility model relates to the field of iron fittings technology, and discloses a steel member for connecting the crossarm of a utility pole. It includes a base plate fixed to the pole head, and a mounting plate fixed above the base plate with mounting holes on its top surface for fixing the crossarm. A pair of support rods are fixed to opposite sides of the top surface of the base plate along the length of the crossarm, hinged to the base plate. One end of each support rod extends away from the base plate and has a groove with a screw threaded into it. An adjusting ring is rotatably connected to the support rod and threaded to the screw. The end of the screw away from the support rod is hinged to the bottom surface of the crossarm. A locking member is provided on the support rod, with its locking end connected to the adjusting ring, allowing the adjusting ring to switch between a rotating and fixed state. This improves the stability of the crossarm structure.

Description

Technical Field

[0001] This utility model relates to the field of iron fittings technology, and in particular to an iron fitting for connecting the crossarm of a utility pole head. Background Technology

[0002] Crossarms are an important component in cable line construction. They are typically used to install insulators, hardware, and support conductors, and are fixed by connecting the pole metal parts at the top of the pole.

[0003] Existing steel members mainly consist of structures such as clamps, through bolts, and forked beams. For example, in a steel tower tension crossarm accessory with patent number CN220565814U, clamps are used as the support structure for the crossarm, and a pair of clamps are fixed together with bolts. Diagonal bars are also connected between the two crossarms by bolts to support them. Although this can improve the stability of the crossarm to a certain extent, the bolt structure will still loosen after long-term use, causing the crossarm structure to be unstable. Utility Model Content

[0004] The purpose of this invention is to provide a pole iron component for connecting the crossarm of a utility pole, so as to solve the problems existing in the prior art and improve the fixing stability of the crossarm structure.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a pole piece for connecting the crossarm of a utility pole head, including a base plate fixed to the pole head, and further comprising:

[0006] A mounting plate is fixed above the base plate, and a mounting hole is provided on the top surface of the mounting plate for fixing the crossbeam;

[0007] A pair of support rods are fixedly connected to the top surface of the base plate on both sides along the length of the crossarm. The support rods are hinged to the base plate. One end of the support rod extends away from the base plate and has a groove. A screw is slidably connected in the groove. An adjusting ring is rotatably connected to the support rod. The adjusting ring is threadedly connected to the screw. The end of the screw away from the support rod is hinged to the bottom surface of the crossarm.

[0008] A locking element is provided on the support rod, and the locking end of the locking element is connected to the adjusting ring so that the adjusting ring has a switchable rotational or fixed state.

[0009] Preferably, a limiting ring is fixed to the outer periphery of the portion of the adjusting ring that extends into the slide groove, a limiting groove is formed in the inner sidewall of the slide groove, the limiting ring is rotatably connected in the limiting groove, and an internal thread is formed on the inner ring side of the adjusting ring.

[0010] Preferably, a rotating block is fixed to the outer periphery of the end of the adjusting ring away from the support rod.

[0011] Preferably, the locking element includes:

[0012] The adjusting ring has an external thread on its outer circumference. The locking ring is sleeved on the outer circumference of the adjusting ring and threadedly connected to the adjusting ring. The locking ring has an anti-slip protrusion fixedly connected to its outer circumference. The locking ring has a stop ring fixedly connected to the side of the supporting rod near the supporting rod. When the stop ring abuts against the supporting rod, the adjusting ring is fixed relative to the supporting rod.

[0013] Preferred options also include:

[0014] Two fixing plates are disposed opposite to each other on both sides of the support rod near the base plate. The fixing plates are fixedly connected to the base plate. A first rotating shaft is passed through the two fixing plates and a first collar is sleeved on the first rotating shaft. The support rod is fixedly connected to the outer wall of the first collar.

[0015] Preferably, the portion of the bottom end of the crossarm away from the mounting plate is fixedly connected to an adapter seat, the bottom end of the adapter seat is provided with a groove, a second rotating shaft is rotatably connected in the groove, the second rotating shaft is fitted with a second collar, and the end of the screw away from the support rod is fixedly connected to the outer wall of the second collar.

[0016] Preferably, the substrate and the mounting plate are annular structures with the same diameter. An inner sleeve is fixedly connected between the inner ring sides of the substrate and the mounting plate, and an outer sleeve is fixedly connected between the outer ring sides of the substrate and the mounting plate. The side wall of the outer sleeve is provided with through grooves corresponding to the support rods, and the support rods are movably fitted in the through grooves.

[0017] Preferred options also include:

[0018] Several reinforcing rods are circumferentially fixed around the outer periphery of the inner sleeve. The two ends of the reinforcing rods are respectively fixed to the base plate and the mounting plate. The projection of the reinforcing rods in the vertical direction does not contact the mounting holes.

[0019] The present invention discloses the following technical effects:

[0020] This invention forms a double-layer support structure by fixing a mounting plate to the top of a base plate. The crossarm is fixed to the mounting holes on the mounting plate, and a pair of support rods are hinged to opposite sides of the base plate. A screw is slidably connected to the support rods, and an adjusting ring is rotatably connected to the support rods. The adjusting ring is threadedly connected to the screw, thereby moving the screw along the axis of the sliding groove of the support rod. The screw is hinged to the bottom surface of the crossarm, forming a triangular support structure. The opposing support forces between the screw and the support rods improve the stability of the crossarm and the mounting plate. In addition, a locking device is provided on the support rod to adjust and control the adjusting ring, allowing the adjusting ring to be rotatably connected to the support rod or fixed relative to the support rod, thereby locking the screw and improving the stability of the crossarm. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a diagram showing the positional relationship between the connecting pole and the mounting plate in this utility model;

[0023] Figure 2 This is a diagram showing the connection relationship between the inner sleeve and the substrate in this utility model;

[0024] Figure 3 This is a diagram showing the positional relationship between the first and second rotating shafts in this utility model.

[0025] Figure 4 This is a diagram showing the connection relationship between the adjusting ring and the support rod in this utility model;

[0026] Figure 5 This is a diagram showing the connection relationship between the locking ring and the adjusting ring in this utility model;

[0027] The components are as follows: 1. Base plate; 2. Connecting pole; 3. Mounting plate; 4. Support rod; 5. Screw; 6. Adjusting ring; 7. Bolt; 8. Nut; 9. Limiting ring; 10. Rotating block; 11. Locking ring; 12. Anti-slip protrusion; 13. Abutment ring; 14. Fixing plate; 15. First rotating shaft; 16. First collar; 17. Adapter seat; 18. Second rotating shaft; 19. Second collar; 20. Positioning pin; 21. Inner sleeve; 22. Outer sleeve; 23. Reinforcing rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Reference Figures 1-5 This utility model provides a pole piece for connecting the crossarm of a utility pole, including a base plate 1 fixed to the pole head of the connecting pole 2, and further including:

[0031] Mounting plate 3 is fixedly attached to the top of base plate 1. Mounting plate 3 has mounting holes on its top surface for fixing crossbeams.

[0032] A pair of support rods 4 are fixedly connected to the top surface of the base plate 1 on both sides along the length of the crossbeam. The support rods 4 are hinged to the base plate 1. One end of the support rod 4 extends away from the base plate 1 and has a groove. A screw 5 is slidably connected in the groove. An adjusting ring 6 is rotatably connected to the support rod 4. The adjusting ring 6 is threadedly connected to the screw 5. The end of the screw 5 away from the support rod 4 is hinged to the bottom surface of the crossbeam.

[0033] A locking element is provided on the support rod 4. The locking end of the locking element is connected to the adjusting ring 6 so that the adjusting ring 6 can have a switchable rotation or fixed state.

[0034] This invention forms a double-layer support structure by fixing the mounting plate 3 above the base plate 1. The crossarm is fixed to the mounting holes on the mounting plate 3. At the same time, a pair of support rods 4 are hinged to the opposite side of the base plate 1. The support rods 4 are slidably connected to the screw 5, and the adjustment ring 6 is rotatably connected to the support rods 4. The adjustment ring 6 is threadedly connected to the screw 5, thereby moving the screw 5 along the axis of the groove of the support rod 4. The screw 5 is hinged to the bottom surface of the crossarm, thereby forming a triangular support structure. The support force between the screw 5 and the support rod 4 in opposite directions improves the fixing stability of the crossarm and the mounting plate 3. In addition, by setting a locking member on the support rod 4, the adjustment ring 6 can be adjusted and controlled, so that the adjustment ring 6 can be rotatably connected to the support rod 4 or fixed relative to the support rod 4, thereby locking the screw 5 and improving the fixing stability of the crossarm.

[0035] In this technical solution, through holes are made on the crossarm corresponding to the mounting holes, bolts 7 pass through the through holes and mounting holes, and nuts 8 are threaded onto the protruding end of bolts 7, thereby fixing the crossarm to the mounting plate 3. The base plate 1 can be directly welded to the reinforcing bars inside the connecting pole 2 or welded to the pole cap (not shown in the figure; the reinforcing bars and pole cap are existing technical structures and will not be described in detail), thereby fixing it to the pole head of the connecting pole 2. The support rods 4 and screws 5 are used to support both ends of the crossarm, thereby providing pre-tightening force at the connection of bolts 7 and nuts 8, and achieving a better fastening effect between the crossarm and the mounting plate 3.

[0036] Furthermore, a limiting ring 9 is fixedly connected to the outer periphery of the portion of the adjusting ring 6 that extends into the slide groove. A limiting groove is provided on the inner side wall of the slide groove, and the limiting ring 9 is rotatably connected in the limiting groove. An internal thread is provided on the inner ring side of the adjusting ring 6.

[0037] The rotational stability between the adjusting ring 6 and the support rod 4 is ensured by the limiting ring 9 and the limiting groove.

[0038] Furthermore, a rotating block 10 is fixedly connected to the outer periphery of the adjusting ring 6 at the end away from the support rod 4.

[0039] By adopting a regular hexagonal structure for the rotating block 10, the rotational friction of the adjusting ring 6 is increased, making it easier to adjust the extension distance of the screw 5 by turning the adjusting ring 6 with tools such as wrenches.

[0040] Furthermore, the locking element includes:

[0041] The locking ring 11 and the adjusting ring 6 have external threads on their outer periphery. The locking ring 11 is sleeved on the outer periphery of the adjusting ring 6 and threadedly connected to the adjusting ring 6. The locking ring 11 has an anti-slip protrusion 12 fixedly connected to its outer periphery. The locking ring 11 has a stop ring 13 fixedly connected to its side near the support rod 4. When the stop ring 13 abuts against the support rod 4, the adjusting ring 6 is fixed relative to the support rod 4.

[0042] A locking ring 11 is threaded onto the outer periphery of the adjusting ring 6, and a stop ring 13 is fixedly connected to the side of the locking ring 11 near the support rod 4. As the locking ring 11 rotates, the stop ring 13 moves toward the end face of the support rod 4. When the stop ring 13 abuts against the support rod 4, the locking ring 11 generates a squeezing force in the opposite direction, thereby fixing the adjusting ring 6.

[0043] Furthermore, it also includes:

[0044] Two fixing plates 14 are arranged opposite each other on both sides of the support rod 4 near the base plate 1. The fixing plates 14 are fixed to the base plate 1. A first rotating shaft 15 is passed through the two fixing plates 14. A first collar 16 is sleeved on the first rotating shaft 15. The support rod 4 is fixed to the outer wall of the first collar 16.

[0045] The support rod 4 is rotated and supported by the fixed plate 14, the first rotating shaft 15 and the first collar 16, so that the support rod 4 is hinged and stable to the base plate 1.

[0046] Furthermore, a transition seat 17 is fixedly connected to the bottom end of the crossarm away from the mounting plate 3. A groove is opened at the bottom end of the transition seat 17, and a second rotating shaft 18 is connected in the groove. A second collar 19 is fitted over the second rotating shaft 18. The end of the screw 5 away from the support rod 4 is fixedly connected to the outer wall of the second collar 19.

[0047] Correspondingly, the adapter 17 is welded to the bottom surface of the crossarm, and the second rotating shaft 18 and the second collar 19 are rotatably connected by the groove, so that the screw 5 is stably hinged to the crossarm.

[0048] In one embodiment of this utility model, the first rotating shaft 15 and the second rotating shaft 18 are mounted on the fixing plate 14 and the adapter 17, and their ends extend out of the fixing plate 14 and the adapter 17, respectively. The first rotating shaft 15 and the second rotating shaft 18 can be limited and fixed by the positioning pin 20, so that the first rotating shaft 15 and the second rotating shaft 18 can be detachably connected to the fixing plate 14 and the adapter 17, respectively, which is convenient for actual installation and use.

[0049] Furthermore, the substrate 1 and the mounting plate 3 are annular structures with the same diameter. An inner sleeve 21 is fixedly connected between the inner ring sides of the substrate 1 and the mounting plate 3, and an outer sleeve 22 is fixedly connected between the outer ring sides of the substrate 1 and the mounting plate 3. The side wall of the outer sleeve 22 is provided with through grooves corresponding to the support rods 4, and the support rods 4 are movably fitted in the through grooves.

[0050] The inner sleeve 21 and the outer sleeve 22 are used to form a hollow cylindrical structure of the substrate 1 and the mounting plate 3 to enhance the overall structure. In addition, a through groove is opened on the side wall of the outer sleeve 22 to allow for structural clearance for the rotation of the support rod 4.

[0051] Furthermore, it also includes:

[0052] Several reinforcing rods 23 are circumferentially fixed around the outer periphery of the inner sleeve 21. The two ends of the reinforcing rods 23 are fixed to the base plate 1 and the mounting plate 3 respectively. The projection of the reinforcing rods 23 in the vertical direction does not contact the mounting holes.

[0053] By using the reinforcing rod 23 to avoid the mounting position of the mounting hole and to form a fixed support between the base plate 1 and the mounting plate 3, the support strength of the crossarm is further improved.

[0054] This utility model provides an installation process for the pole iron component used to connect the crossarm of the pole head:

[0055] A first rotating shaft 15 is inserted between two fixed plates 14, passing through a first collar 16. Positioning pins 20 are inserted at both ends of the first rotating shaft 15, rotatably fixing the support rod 4 and the first collar 16 between the two fixed plates 14. Then, the crossbeam is fixed to the mounting plate 3 by bolts 7 and nuts 8. Rotating the support rod 4 and turning the adjusting ring 6 causes the screw 5 to extend relative to the support rod 4. The screw 5 and the second collar 19 are inserted into the groove corresponding to the position of the adapter 17. Then, a second rotating shaft 18 is inserted, with positioning pins 20 inserted at both ends of the second rotating shaft 18, rotatably fixing the screw 5 to the adapter 17. The adjusting ring 6 is then turned until it is tightened, so that the screw 5 and the support rod 4 abut against the adapter 17 and the fixed plate 14 in opposite directions, respectively. Then, the locking ring 11 is turned until the abutment ring 13 abuts against the support rod 4, completing the support and fixation of the crossbeam.

[0056] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0057] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A pole fitting for connecting a crossarm at the top of a utility pole, comprising a base plate (1) fixed to the top of a connecting pole (2), characterized in that, Also includes: Mounting plate (3) is fixed above the base plate (1). Mounting holes are provided on the top surface of the mounting plate (3) for fixing the crossbeam. A pair of support rods (4) are fixedly connected to the top surface of the base plate (1) on both sides along the length of the crossarm. The support rods (4) are hinged to the base plate (1). One end of the support rod (4) extends away from the base plate (1) and has a groove. A screw (5) is slidably connected in the groove. An adjusting ring (6) is rotatably connected to the support rod (4). The adjusting ring (6) is threaded to the screw (5). The end of the screw (5) away from the support rod (4) is hinged to the bottom surface of the crossarm. A locking element is provided on the support rod (4), and the locking end of the locking element is connected to the adjusting ring (6) so that the adjusting ring (6) has a switchable rotation or fixed state.

2. The pole fitting for connecting the crossarm of a utility pole according to claim 1, characterized in that: The adjusting ring (6) is fixed to the outer periphery of the part of the slide groove, and a limiting ring (9) is formed in the inner wall of the slide groove. The limiting ring (9) is rotatably connected in the limiting groove. The inner ring of the adjusting ring (6) is provided with an internal thread.

3. The pole fitting for connecting the crossarm of a utility pole according to claim 1, characterized in that: A rotating block (10) is fixed to the outer periphery of the end of the adjusting ring (6) away from the support rod (4).

4. The pole fitting for connecting the crossarm of a utility pole according to claim 1, characterized in that, The locking element includes: The locking ring (11) has an external thread on the outer periphery of the adjusting ring (6). The locking ring (11) is sleeved on the outer periphery of the adjusting ring (6) and threadedly connected to the adjusting ring (6). The locking ring (11) has an anti-slip protrusion (12) fixed on the outer periphery. The locking ring (11) has an abutment ring (13) fixed on the side near the support rod (4). When the abutment ring (13) abuts against the support rod (4), the adjusting ring (6) is fixed relative to the support rod (4).

5. The pole fitting for connecting the crossarm of a utility pole according to claim 1, characterized in that... It also includes: Two fixing plates (14) are arranged opposite each other on both sides of the support rod (4) near the base plate (1). The fixing plates (14) are fixed to the base plate (1). A first rotating shaft (15) is passed through and connected between the two fixing plates (14). A first collar (16) is sleeved on the first rotating shaft (15). The support rod (4) is fixed to the outer wall of the first collar (16).

6. The pole fitting for connecting the crossarm of a utility pole according to claim 1, characterized in that: The bottom end of the crossarm is fixedly connected to the portion away from the mounting plate (3) with an adapter seat (17). The bottom end of the adapter seat (17) has a groove, and a second rotating shaft (18) is connected in the groove. The second rotating shaft (18) is fitted with a second collar (19). The end of the screw (5) away from the support rod (4) is fixedly connected to the outer wall of the second collar (19).

7. The pole fitting for connecting the crossarm of a utility pole according to claim 1, characterized in that: The substrate (1) and the mounting plate (3) are annular structures with the same diameter. An inner sleeve (21) is fixed between the inner ring side of the substrate (1) and the mounting plate (3), and an outer sleeve (22) is fixed between the outer ring side of the substrate (1) and the mounting plate (3). The side wall of the outer sleeve (22) is provided with through grooves corresponding to the support rod (4), and the support rod (4) is movably fitted in the through groove.

8. The pole fitting for connecting the crossarm of a utility pole according to claim 7, characterized in that, Also includes: A number of reinforcing rods (23) are circumferentially fixed around the outer periphery of the inner sleeve (21). The two ends of the reinforcing rods (23) are fixed to the base plate (1) and the mounting plate (3) respectively. The projection of the reinforcing rods (23) in the vertical direction does not contact the mounting hole.

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