CN216711429U - Jacking vaulting pole adjustment mechanism - Google Patents

Abstract

The utility model discloses a jacking stay bar adjusting mechanism which comprises a screw rod, wherein the screw rod is in threaded connection with an ear plate, and the ear plate is arranged on a fixed support; the screw rod is provided with a clamping plate, and a jacking stay bar is fixedly connected to the clamping plate; the clamping plate drives the jacking support rod to move longitudinally along the screw rod; the screw is provided with a plurality of baffle rings for preventing the clamping plate from slipping out of the screw, the baffle rings are connected with the screw through pin shafts, each baffle ring comprises a first baffle ring and a second baffle ring, and the first baffle ring and the second baffle ring are respectively arranged at two ends of the clamping plate; when operating personnel only need provide the power rotation operating handle who is greater than the screw rod pretightning force, drive adjusting screw motion, under the effect that keeps off the ring, drive jacking vaulting pole cardboard motion to realize jacking vaulting pole motion, labour saving and time saving has avoided the jacking vaulting pole to fall into in the body of the tower is marked time.

Description

A lifting strut adjustment mechanism

technical field

The utility model belongs to the technical field of cranes, in particular to an adjusting mechanism for a jacking strut.

Background technique

When the jacking cylinder of the self-jacking tower crane changes steps during the jacking process, it is necessary to drop the jacking struts into the steps of the tower body to support the upper half of the tower crane. In the prior art, in the action of the climbing frame jacking up the strut falling into the tower body step, the installer generally manually pushes the jacking strut into the step, but the thrust during manual operation is generally not greater than 400N. When the weight of the rod is high, the manual push is more laborious, or impossible to push at all.

In addition, when the jacking cylinder is working, the jacking strut is fixed on the climbing frame platform to prevent the jacking strut from falling into the steps of the tower body and causing a safety accident. The existing jacking strut structure includes a jacking rod, a push handle and a safety buckle. This artificially pushed jacking strut is only suitable for small-tonnage models. For large-tonnage tower cranes, the weight of the jacking strut is much greater than 400N, and it is difficult to manually push this structural form. The jacking strut of the climbing frame is fixed on the platform of the climbing frame through the safety buckle, and the fixed position is limited by the position of the platform.

Utility model content

The utility model provides a jacking strut adjusting mechanism for solving the problem that the jacking strut is laboriously pushed into the tower body step in the prior art, which prevents the jacking strut from falling into the tower body step and causing a safety accident.

In order to solve the above-mentioned problems, the present invention adopts the following technical solutions: a jacking strut adjustment mechanism, comprising a screw rod, the screw rod is threadedly connected with an ear plate, and the ear plate is arranged on a fixed bracket; the screw rod is provided with a screw A card plate, on which a jacking strut is fixedly connected; the card plate drives the jacking strut to move longitudinally along the screw rod.

Preferably, the screw is provided with a plurality of baffle rings for preventing the clamping plate from slipping out of the screw, the baffle rings are connected with the screw through a pin, and the baffle ring includes a first baffle ring and a second baffle ring. The first blocking ring and the second blocking ring are respectively arranged on both ends of the clamping plate.

Preferably, the baffle ring is provided with a first installation hole, and the baffle ring is connected with the screw rod through the first installation hole; the two ends of the baffle ring are provided with second installation holes, and the second installation hole is connected with the pin The shaft is fixedly connected.

Preferably, the bottom of the screw rod is provided with a handle for rotating the screw rod, and the handle is fixedly connected to the screw rod through the first through hole.

Preferably, the handle is rod-shaped; metal balls are provided at both ends of the handle.

Preferably, the handle is a disc-shaped handle.

Preferably, the screw rod is provided with a plurality of second through holes, the number of the second through holes is equal to that of the baffle ring, and the pin shaft passes through the second installation holes on the baffle ring in sequence to connect with the second through holes.

Preferably, the diameter of the second through hole is the same as that of the second installation hole.

Preferably, the card plate is provided with a fourth through hole, and the card plate is fixedly connected to the screw rod through the fourth through hole.

Preferably, the diameter of the fourth through hole is larger than the diameter of the screw.

Compared with the prior art, the beneficial effects achieved by the utility model are:

In the utility model, the screw is screwed with the lug plate, the lug plate is arranged on the fixed bracket, the fixed bracket is welded with the climbing frame, the screw rod is provided with a clamping plate, and the clamping plate is fixedly connected with a lifting strut; the clamping plate The jacking strut is driven to move longitudinally along the screw rod. The operator only needs to provide a force greater than the screw pre-tightening force to rotate the operating handle to drive the adjustment screw to move, and under the action of the retaining ring, drive the jacking strut clip to move, thereby realizing the jacking strut movement. It saves time and effort, and can fix the jacking strut in a safe position when the jacking cylinder is working to prevent the jacking strut from falling into the steps of the tower body, which reduces the occurrence of safety accidents and further improves work efficiency.

Description of drawings

FIG. 1 is a schematic diagram of a jacking strut adjusting mechanism provided by an embodiment of the present invention;

2 is a schematic structural diagram of a card board provided by an embodiment of the present invention;

3 is a schematic diagram of a screw structure provided by an embodiment of the present invention;

4 is a schematic diagram of a first mounting hole provided by an embodiment of the present invention;

5 is a schematic diagram of a second mounting hole provided by an embodiment of the present invention;

In the figure: 1-fixed bracket; 2-ear plate; 3-screw; 301-first through hole; 302-second through-hole; 4-handle; 5-stop ring; 501-first installation hole; 502-first Two installation holes; 503-first retaining ring; 504-second retaining ring; 6-bolt; 7-card plate; 701-fourth through hole; 8-lifting strut.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, and cannot be used to limit the protection scope of the present utility model.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "horizontal", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility. The novel and simplified description does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

As shown in FIG. 1 and FIG. 3 , an embodiment of the present invention provides a jacking strut adjustment mechanism, including a vertically arranged screw 3 , the screw 3 is provided with two through holes, and the through holes are respectively They are a first through hole 301 and a second through hole 302. The first through hole 301 is provided at the end of the screw rod. The bottom of the screw rod 3 is provided with a handle 4 for rotating the screw rod 3. The handle 4 is rod-shaped, so Metal balls are provided at both ends of the handle, or the handle 4 is a disc-shaped handle; the handle 4 is fixedly connected with the screw 3 through a first through hole 301 ; the screw 3 is provided with a plurality of second through holes 302 , further, the number of the second through holes 302 is two, which are respectively located on the left and right sides of the screw 3, the second through holes 302 are equal to the number of the retaining ring 5, the second through holes 302 is the same as the diameter of the second installation hole 502 on the baffle ring 5 , and the pin 6 is connected to the second through hole 302 through the second installation hole 502 on the baffle ring 5 in sequence.

The screw 3 is provided with an ear plate 2, the screw 3 is threadedly connected with the ear plate 2, and the diameter of the screw 3 is consistent with the thread diameter of the ear plate 2; the ear plate 2 is arranged on the fixing bracket 1, and further , the lug plate 2 is welded with the fixing bracket 1; the fixing bracket 1 is welded on the climbing frame (not shown in the figure), and by welding the fixing bracket 1 on the climbing frame, the lifting cylinder can be Fix the jacking strut in a safe position to prevent the jacking strut 8 from slipping and reduce the occurrence of safety accidents.

As shown in FIG. 2 , a clamping plate 7 is provided on the screw 3, and a jacking strut 8 is fixedly connected to the clamping plate 7. Specifically, the clamping plate 7 is welded on the jacking strut 8, so The card plate 7 drives the jacking strut 8 to move longitudinally along the screw 3, so as to avoid the difficulty or inability to push the jacking strut 8 due to insufficient force during manual pushing; the card plate 7 is provided with a fourth Through holes 701 , the clamping plate 7 is fixedly connected to the screw rod 3 through a fourth through hole 701 , and the diameter of the fourth through hole 701 is larger than the diameter of the screw rod 3 .

As shown in FIG. 1 and FIG. 4 , the screw 3 is provided with a plurality of retaining rings 5 for preventing the clamping plate 7 from slipping out of the screw 3 . In this embodiment, the number of the retaining rings 5 is set to two. The baffle ring 5 includes a first baffle ring 503 and a second baffle ring 504, which are respectively arranged on both sides of the clamping plate 7. The first baffle ring 503 is arranged on the top of the screw 3 to prevent the clamping plate 7 from falling out when moving longitudinally. For the screw 3 , the second blocking ring 504 is arranged on the side of the clamping plate 7 close to the ear plate 2 , and the blocking ring 5 is connected to the screw 3 through the pin shaft 6 . The baffle ring 5 is provided with a first installation hole 501, and the baffle ring 5 is connected to the screw 3 through the first installation hole 501; as shown in FIG. 5, both ends of the baffle ring 5 are provided with second installation holes 502 , the second installation hole 502 is fixedly connected with the pin shaft 6 .

The working principle of a lifting strut adjustment mechanism: the screw 3 and the threaded lug plate 2 are threadedly connected, and the operator only needs to provide a force greater than the screw pre-tightening force to rotate the operating handle 4 to drive the adjustment screw 4 to move up and down, Under the action of the retaining ring 5 , the jacking strut 8 on the belt clip plate 7 moves, thereby realizing the movement of the jacking strut 8 . By adjusting the position of the screw 3 on the threaded lug plate 2, the lifting strut 8 can be fixed at any position, which saves time and effort, and further improves the work efficiency.

The above are only preferred examples of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still The technical solutions described in the embodiments are modified, or some technical features thereof are equivalently replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. The jacking support rod adjusting mechanism is characterized by comprising a screw rod (3), wherein the screw rod (3) is in threaded connection with an ear plate (2), and the ear plate (2) is arranged on a fixed support (1); a clamping plate (7) is arranged on the screw rod (3), and a jacking support rod (8) is fixedly connected to the clamping plate (7); the clamping plate (7) drives the jacking supporting rod (8) to move longitudinally along the screw rod (3).

2. The jacking stay bar adjusting mechanism of claim 1, wherein a plurality of baffle rings (5) for preventing the clamping plate (7) from slipping out of the screw (3) are arranged on the screw (3), the baffle rings (5) are connected with the screw (3) through a pin shaft (6), the baffle rings (5) comprise a first baffle ring (503) and a second baffle ring (504), and the first baffle ring (503) and the second baffle ring (504) are respectively arranged at two ends of the clamping plate (7).

3. The jacking stay bar adjusting mechanism of claim 2, wherein the baffle ring (5) is provided with a first mounting hole (501), and the baffle ring (5) is connected with the screw rod (3) through the first mounting hole (501); two ends of the baffle ring (5) are provided with second mounting holes (502), and the second mounting holes (502) are fixedly connected with the pin shafts (6).

4. The jacking stay adjusting mechanism of claim 1, wherein the clamping plate (7) is provided with a fourth through hole (701), and the clamping plate (7) is fixedly connected to the screw rod (3) through the fourth through hole (701).

5. The jacking stay adjusting mechanism of claim 4, wherein the diameter of the fourth through hole (701) is larger than the diameter of the screw (3).

6. The jacking stay bar adjusting mechanism of claim 1, wherein a handle (4) for rotating the screw (3) is arranged at the bottom of the screw (3), and the handle (4) is fixedly connected with the screw (3) through the first through hole (301).

7. Jacking stay adjusting mechanism according to claim 6, wherein the handle (4) is rod-shaped; and metal balls are arranged at two ends of the handle (4).

8. The jacking strut adjustment mechanism of claim 6, wherein said handle (4) is a disc-shaped handle.

9. The jacking stay bar adjusting mechanism of claim 2, wherein a plurality of second through holes (302) are formed in the screw (3), the number of the second through holes (302) is equal to that of the baffle rings (5), and the pin shafts (6) sequentially penetrate through the second mounting holes (502) in the baffle rings (5) to be connected with the second through holes (302).

10. The jacking strut adjustment mechanism of claim 9, wherein said second through hole (302) is in line with the diameter of the second mounting hole (502).

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