CN207228998U - A kind of adjustable ladder supporting rack - Google Patents

Abstract

An adjustable ladder support frame relates to the field of electric power construction. During the construction of voltage transformers and current transformers, due to the influence of secondary cables passing through the pipes, the ladder cannot directly lean on the equipment poles but can only lean on the cable pipes, which cannot meet the requirements for safe use. The utility model comprises a support frame body, a holding claw, and a connection and fixing device. The support frame body includes left and right support rods which are left and right symmetrical. The arc-shaped left and right claws, an adjustable cross bar is provided between the rear of the left support rod and the right support rod to realize the rear spacing of the left support rod and the right support rod, the left support rod and the right support rod An adjustable connection locking device is provided between the front parts of the rods to realize the locking of the claws to the equipment rods. The technical scheme can be easily adapted to single ladders of different sizes, improves the safety of single ladder construction, reduces the occurrence of safety accidents, and improves life support and operation efficiency.

Description

An adjustable ladder support frame

technical field

The utility model relates to the field of electric power construction, in particular to an adjustable ladder support frame.

Background technique

At present, in the process of engineering construction, a large number of single-ladder operations need to be used during equipment installation. In order to meet the construction safety, the ladder is leaned on the equipment pole at an angle of 60 degrees, and then tied and fixed with the equipment pole with hemp rope to prevent side slipping and dumping, and improve the safety of single ladder use. During the construction of voltage transformers and current transformers, due to the influence of the secondary cable through the pipe, the ladder cannot directly lean on the equipment pole but only on the cable pipe, and often directly leans on the cable through the pipe for binding. , the ladder is only a little stressed, which cannot meet the requirements for safe use.

Utility model content

The technical problem to be solved and the technical task proposed by the utility model are to perfect and improve the existing technical solutions, and to provide an adjustable ladder support frame for the purpose of realizing safe construction when a single ladder is used. For this reason, the utility model takes the following technical solutions.

An adjustable ladder support frame, including a support frame body, a claw set at the front end of the support frame body for holding the equipment rod tightly, and a connection and fixing device for fixing with a single ladder at the rear end of the support frame body. The support frame body includes left and right support rods with left and right symmetry, and the claws include retractable and fixed arc-shaped left claws and right claws respectively arranged at the front ends of the left and right rods. An adjustable cross bar is provided between the rear parts of the left support rod and the right support rod to realize the rear spacing of the left support rod and the right support rod, and between the front parts of the left support rod and the right support rod An adjustable connection locking device is provided to realize the locking of the claw to the equipment rod. Before construction and use, adjust the distance between the left support rod and the right support rod through the adjustable cross bar according to the distance between the uppermost section of the ladder columns on both sides of the single ladder. After the adjustment is completed, connect and fix it on both sides of the upper part of the single ladder Then put the single ladder upright on the ladder column, clamp the equipment rod through the claws at the front end of the support frame and lean against the equipment rod, and then lock the left and right claws through the adjustable connection locking device, so that the The locking and fixing between the claw and the equipment rod can be realized in the front and rear directions of the support frame body according to the distance between the single ladder and the equipment rod through the telescopic left and right claws to realize adjustment, which is convenient to operate and improves the construction work of the single ladder. security.

As a further improvement and supplement to the above technical solution, the utility model also includes the following additional technical features.

The adjustable cross bar includes rod-shaped adjusting nuts with positive and negative threaded holes in the axial direction at both ends, and the two connected to the left support rod and the right support rod are respectively screwed with the positive and negative threaded holes of the adjusting nut. screw rods, each of the two screw rods is provided with a lock nut. The adjustment and locking of the length of the cross bar can be conveniently realized through the adjusting nut and the locking nut, and the structure is simple and the operation is convenient.

The adjustable connection and locking device includes a screw that can rotate around the left support rod, and the screw is connected with a rod-shaped adjusting nut that is provided with positive and negative screw holes in the axial direction at both ends, and the other end of the adjusting nut The spin connection has a detachable shackle to connect with the right support rod. The locking and loosening of the shackle can be conveniently carried out by adjusting the nut, and the separation and opening of the shackle can be realized through the screw rod which can rotate around the left support rod.

The left support rod is provided with a support rod collar, the screw rod is connected to the support rod collar to realize the rotation of the screw around the left support rod, and the shackle includes a locking hook that is threadedly connected to the adjusting nut and the lock ring attached to the right support rod. The screw rod can conveniently realize rotation around the left support rod through the collar, the structure is simple, the cost is low, and it is easy to realize.

The connecting and fixing device is a single-ladder collar with a through hole in the middle, and the through-hole of the single-ladder collar is set on the upper part of the ladder columns on both sides of the single ladder to realize the connection and fixation with the single ladder. The connection and fixation method of enclosing the single ladder column by the collar has a simple structure, low cost and is easy to realize.

A flexible sheath is provided outside the single-ladder collar. The friction between the single ladder collar and the ladder column can be enhanced through the flexible sheath, which also prevents mutual damage between the collar and the ladder column, and prevents construction personnel from directly contacting the single ladder collar when climbing. Occurrence of accidental jamming injury.

The middle and rear parts of the left support rod and the right support rod are bent upwards, and when the claws hold the device rod tightly, the front parts of the left support rod and the right support rod are located at the bend and are perpendicular to the device rod. The front part of the support rod is vertically arranged with the equipment rod, so that the claw can hold the equipment rod tightly at an optimal angle, and there will be no potential safety hazard due to the gap between the claw and the equipment rod or the uneven gap between the upper and lower sides.

The insides of the left and right claws in contact with the equipment rod are provided with arc-shaped rubber claw pads. The friction between the claw and the equipment rod is enhanced by the rubber claw pad, and the grip effect of the claw is good.

The rear ends of the left claw and the right claw are connected with screw rods, and the screw rods are screwed into the threaded holes at the front ends of the left support rod and the right support rod and locked by the locking nuts on the screw rods. The left and right claws can be telescopically adjusted back and forth through the screw rod, and the locking can be realized conveniently through the lock nut.

Between the screw rod and the support rod, between the shackle and the right support rod, between the screw rod and the support rod collar, between the claw and the screw rod are all welded connections. The welding connection is convenient and quick to manufacture, and the connection is firm.

Beneficial effects: It can be easily adapted to single ladders of different sizes. Through the use of the support frame, it is not necessary for the single ladder to lean directly on the cable pipe or the smooth equipment pole, which improves the safety of single ladder construction and reduces It prevents the occurrence of safety accidents, improves life support and operation efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the utility model.

In the figure: 1-left support rod; 2-right support rod; 3-single ladder collar; 4-crossbar; 5-connection locking device; 6-right claw; 7-left claw; 8-rubber claw pad; 9-equipment rod; 10-single ladder; 501-support rod collar; 502-shackle; 11-cable pipe.

Detailed ways

The technical solution of the utility model is described in further detail below in conjunction with the accompanying drawings of the description.

As shown in Figure 1-2, an adjustable ladder support frame includes a support frame body, a claw set at the front end of the support frame body for holding the equipment rod 9 tightly, and a claw set at the rear end of the support frame body for connecting with a single ladder. 10 fixed connection and fixing device, the support frame body includes a left and right support rod 1 and a right support rod 2 which are left and right symmetrical, and the claws include front and rear retractable and fixed front ends respectively arranged on the front ends of the left support rod 1 and the right support rod 2. The arc-shaped left claw 7 and the right claw 6 are provided with an adjustable cross bar 4 between the rear of the left support rod 1 and the right support rod 2 to realize the rear spacing of the left support rod 1 and the right support rod 2, An adjustable connection locking device 5 is provided between the front parts of the left support bar 1 and the right support bar 2 to realize the locking of the claw to the equipment bar 9 .

In order to realize length adjustment and locking and fixing, the adjustable crossbar 4 includes rod-shaped adjusting nuts with positive and negative screw holes in the axial direction at both ends, and two nuts connected to the left support rod 1 and the right support rod 2 respectively. The two screw rods are respectively provided with a locking nut on the screw rods that are screwed together with the positive and negative threaded holes of the adjusting nuts. The adjustment and locking of the length of the cross bar 4 can be conveniently realized through the adjusting nut and the lock nut, and the structure is simple and the operation is convenient.

In order to realize connection and locking, the adjustable connection and locking device 5 includes a screw that can rotate around the left support rod 1, and the screw connected with the screw includes rod-shaped adjusting nuts with positive and negative screw holes in the axial direction respectively. The other end is screwed with a detachable shackle 502 to connect with the right support rod 2 . The locking and loosening of the shackle 502 can be conveniently performed by adjusting the nut, and the separation and opening of the shackle 502 can be realized through the screw rod that can rotate around the left support rod 1 .

In order to realize rotation around the left support rod 1, a support rod collar 501 is provided on the left support rod 1, and the screw rod is connected to the support rod collar 501 to realize the rotation of the screw around the left support rod 1. The lock hook on the nut and the lock ring connected to the right support bar 2. The screw can conveniently realize the rotation around the left support rod 1 through the collar, the structure is simple, the cost is low, and it is easy to realize.

In order to facilitate the connection and fixing, the connection and fixing device is a single ladder collar 3 with a through hole in the middle, and the through hole of the single ladder collar 3 is set on the upper part of the ladder columns on both sides of the single ladder 10 to realize the connection and fixation with the single ladder 10 . The connection and fixation method of enclosing the 10 ladder columns of a single ladder with a collar has a simple structure, low cost, and is easy to realize.

In order to improve safety, a flexible sheath is provided outside the single-ladder collar 3 . The friction between the single ladder collar 3 and the ladder column can be enhanced through the flexible sheath, and it is also convenient for mutual damage between the collar and the ladder column, and also prevents construction personnel from directly contacting the single ladder collar 3 when climbing The occurrence of accidental jamming damage improves safety.

In order to achieve a better holding effect, the middle and rear parts of the left support rod 1 and the right support rod 2 are bent upward. The front portion is perpendicular to the equipment bar 9 . The front part of the support rod is vertically arranged with the equipment rod 9, so that the claw can hold the equipment rod 9 at an optimal angle, and there will be no potential safety hazards due to the gap between the claw and the equipment rod 9 or the uneven gap between the upper and lower sides , to achieve a better hug effect.

In order to achieve a better gripping effect, the insides of the left claw 7 and the right claw 6 in contact with the equipment rod 9 are provided with arc-shaped rubber claw pads 8 . The friction force between the claw and the equipment rod 9 is enhanced by the rubber claw pad 8, and the effect of holding the claw is better.

In order to realize the front and rear telescopic adjustment and locking, the rear ends of the left claw 7 and the right claw 6 are connected with screw rods. The nut realizes locking. The left claw 7 and the right claw 6 can be telescopically adjusted forward and backward through the screw rod, and the locking is conveniently realized through the lock nut.

For the convenience of manufacture and firm connection, between the screw rod and the support rod, between the shackle 502 and the right support rod 2, between the screw rod and the support rod collar 501, between the claw and the screw rod are welded connections. The welding connection is convenient and quick to manufacture, and the connection is firm.

Before construction and use, the distance between the left support rod 1 and the right support rod 2 is adjusted by adjusting the adjustment nut of the adjustable cross bar 4 according to the distance between the uppermost section of the ladder columns on both sides of the single ladder 10. Tighten the nuts, then put the single-ladder collar 3 on the ladder posts on both sides of the top of the single-ladder 10, then erect the single-ladder 10, and clamp the equipment bar 9 through the claws at the front end of the support frame, so that the single-ladder 10 Lean on the equipment rod 9 through the support frame, and then adjust the locking shackle 502 through the adjusting nut of the adjustable connection locking device 5, so as to realize the locking and fixing of the left claw 7 and the right claw 6 to the equipment rod 9, According to the distance between the single ladder 10 and the equipment rod 9 in the front and rear of the support frame body, the telescopic adjustment of the claws can be realized by adjusting the screw rods at the rear ends of the left claw 7 and the right claw 6 and locked by a lock nut, and then Bind the equipment bar 9 with the hemp rope on the single ladder 10 and do the second insurance, which is easy to operate and improves the safety of the single ladder 10 construction operations.

In this example, the left support bar 1 and the right support bar 2 are galvanized steel pipes.

In this technical solution, the single ladder 10 is supported on the equipment rod 9 through the supporting frame of the technical solution, which effectively avoids the cable pipe 11 and effectively improves the safety of work.

The adjustable ladder support frame shown in Fig. 1-2 above is a specific embodiment of the utility model, which has already reflected the substantive features and progress of the utility model, and can be used according to actual needs under the inspiration of the utility model , equivalent modification of its shape, structure, etc., are all within the scope of protection of this scheme.

Claims (10)

1. A kind of 1. adjustable ladder supporting rack, it is characterised in that：Set including supporting frame, arranged on supporting frame front end for holding Standby bar（9）Holding claw, arranged on supporting frame rear end be used for and single ladder（10）Fixed connection fixing device, the supporting rack Body includes symmetrical left support bar（1）With right support bar（2）, the holding claw is including being respectively arranged on left support bar（1）With Right support bar（2）The front and rear scalable and fixed arc-shaped left holding claw of front end（7）With right holding claw（6）, the left support bar （1）With right support bar（2）Rear portion between be equipped with adjustable cross bar（4）To realize left support bar（1）With right support bar（2）After Portion's spacing, the left support bar（1）With right support bar（2）Front portion between be equipped with adjustable connection locking device（5）With reality Existing holding claw is to plant stem（9）Locking.
2. A kind of 2. adjustable ladder supporting rack according to claim 1, it is characterised in that：The adjustable cross bar（4） The rod adjusting nut in positive and negative pitch thread hole is axially respectively equipped with including both ends, is connected to left support bar（1）With right support bar（2） On 2 screw rods mutually screwed with the positive and negative pitch thread hole of adjusting nut respectively, be respectively provided with a locking on described 2 screw rods Nut.
3. A kind of 3. adjustable ladder supporting rack according to claim 1, it is characterised in that：The adjustable connection locking Device（5）Including left support bar can be surround（1）Rotating screw rod, what is be connected with screw rod is axially respectively equipped with positive and negative tooth including both ends The rod adjusting nut of threaded hole, the other end of the adjusting nut are screwed with separable shackle（502）With right support bar （2）Connection.
4. A kind of 4. adjustable ladder supporting rack according to claim 3, it is characterised in that：The left support bar（1）On Equipped with the supporting rod lantern ring（501）, the screw rod is connected to the supporting rod lantern ring（501）On to realize screw rod around left support bar （1）Rotation, the shackle（502）Including the latch hook being threadingly attached on adjusting nut and it is connected to right support bar（2） On lock ring.
5. A kind of 5. adjustable ladder supporting rack according to claim 1, it is characterised in that：The connection fixing device is Centre is equipped with single terraced lantern ring of through hole（3）, single ladder lantern ring（3）Through hole by being placed on single ladder（10）The top of both sides cleat stanchion is with reality Now with single ladder（10）Connection fix.
6. A kind of 6. adjustable ladder supporting rack according to claim 5, it is characterised in that：Single terraced lantern ring（3）Outside Equipped with flexible shroud.
7. A kind of 7. adjustable ladder supporting rack according to claim 1, it is characterised in that：The left support bar（1）With Right support bar（2）The upward bending in middle and back, in holding claw equipment for enclasping bar（9）When, left support bar（1）With right support bar（2）Position In the front portion of bending part and plant stem（9）Vertically.
8. A kind of 8. adjustable ladder supporting rack according to claim 1, it is characterised in that：The left holding claw（7）And the right side Holding claw（6）With plant stem（9）Arc-shaped rubber palmula is equipped with the inside of contact（8）.
9. A kind of 9. adjustable ladder supporting rack according to claim 1, it is characterised in that：The left holding claw（7）And the right side Holding claw（6）Rear end be respectively connected with screw rod, screw rod and left support bar（1）With right support bar（2）The threaded hole of front end is screwed on and leads to The locking nut crossed on screw rod realizes locking.
10. A kind of 10. adjustable ladder supporting rack according to Claims 2 or 3 or 4 or 9, it is characterised in that：The screw rod Between supporting rod, shackle（502）With right support bar（2）Between, screw rod and the supporting rod lantern ring（501）Between, holding claw and screw rod Between be to be welded to connect.