Simple device for detecting spin lock angle deviation of pull rod type single-box lifting appliance

Abstract

The utility model provides a simple pull rod type single-box lifting appliance spin lock angle deviation detection device which comprises a rod body, the two ends of the rod body are respectively provided with a threaded hole, the upper surfaces of the two ends of the rod body are welded with a safety column, and the top end of the safety column is provided with an external thread; the ball head connecting rod is provided with a ball head part which is in bearing connection with a part to be connected and a screw rod part which is in threaded connection with the threaded hole; a strip-shaped groove is formed in the connecting gasket; wherein; the width of the strip-shaped groove is larger than the diameter of the safety column. One end of the strip-shaped groove is provided with a circular part through which a connecting shaft of the to-be-connected part passes; the connecting shaft and the safety column fix the connecting gasket on the rod body and the ball head connecting rod through a cotter pin and a nut respectively. The state of the connecting rod is determined by observing deformation of the connecting gasket, and if deformation occurs, it is indicated that the impact force at the position is too large, and the gap between the lock and the sheath needs to be adjusted to reduce the impact force to guarantee reliability.

Description

Technical Field

[0001] The utility model relates to a simple device for detecting the angle deviation of a rotary lock of a pull-rod type single-box sling. Background Art

[0002] The container crane relies on the rotation of the twist lock assembly in the spreader to transmit power so that it hooks the container and realizes the action of grabbing the container. The twist lock mechanism in the spreader rotates the twist lock assembly through the movement of the power unit such as the motor or hydraulic cylinder, and the power unit and the twist lock assembly are connected by the twist lock connecting rod to form power transmission. Since the twist lock connecting rod is a component that moves frequently and vibrates greatly, and is a connecting component, both ends need to be connected to adjacent components. During use, it is easy for the connection to become loose and the twist lock angle to shift. After the twist lock connecting rod is loose, the change in its own length can easily cause the twist lock angle to shift and the connection to fall off. At present, the connection between the twist lock connecting rod and the components mostly uses threads, and the root nut is used to tighten to solve the loose problem, but the loose phenomenon still exists. If the thread is loose after loosening, the spreader can only be replaced or the entire set of twist lock connecting rods can be replaced, which makes the work time-consuming and labor-intensive. Utility Model Content

[0003] One purpose of the utility model is to provide a simple device for detecting the angle deviation of the rotary lock of a pull-rod type single-box hoist. By providing a safety column and a connecting gasket, the rod body and the connecting rod ball head are fixed to avoid looseness between the two. At the same time, the position of the rotary lock and the state of the connecting rod can be determined by observing the position and deformation of the connecting gasket safety column.

[0004] The technical solution of the utility model is as follows:

[0005] A simple device for detecting the angle deviation of the rotary lock of a pull-rod type single-box spreader, comprising:

[0006] The rod body has a threaded hole at each end, and a safety column is welded on the upper surface of both ends of the rod body, and the top of the safety column is provided with an external thread;

[0007] A ball-end connecting rod, which has a ball head connected to a bearing of a part to be connected, and a screw rod portion threadedly connected to the threaded hole;

[0008] and a connecting gasket having a strip groove disposed thereon;

[0009] in;

[0010] The width of the strip groove is greater than the diameter of the safety column;

[0011] One end of the strip groove has a circular portion for the connecting shaft of the part to be connected to pass through;

[0012] The connecting shaft and the safety column respectively fix the connecting gasket on the rod body and the ball head connecting rod through a split pin and a nut.

[0013] Preferably, in the simple device for detecting the angle deviation of the rotary lock of a pull-rod type single-lift spreader,

[0014] The two ends of the rod body, the ball head and the left and right sides of the root of the screw part are respectively provided with a first connecting ear, a second connecting ear and a third connecting ear;

[0015] The first connecting ear is located on the inner side of the safety column;

[0016] The first connecting ear, the second connecting ear and the third connecting ear are all provided with pin holes, and a pin shaft is arranged in each pin hole. A split pin passes through the three pin shafts in sequence to fix the first connecting ear, the second connecting ear and the third connecting ear.

[0017] Preferably, in the simple device for detecting the angle deviation of the rotary lock of a pull-rod type single-lift spreader,

[0018] A U-shaped opening groove is respectively arranged on both sides of the threaded hole for the third connecting ear to be inserted into;

[0019] Two semicircular clamps are relatively clamped on the outer side of the third connecting ear, and the semicircular clamps are provided with openings for the third connecting ear to pass through.

[0020] Preferably, in the simple device for detecting the angle deviation of the rotation lock of a pull-rod type single-lift spreader, the outer diameter of the root of the screw portion is smaller than the inner diameter of the threaded hole.

[0021] Preferably, in the simple device for detecting the angle deviation of the rotary lock of a pull-rod type single-lift spreader, a connection gasket accommodating groove is further provided at the upper end of the semicircular clamp.

[0022] Preferably, in the simple device for detecting the angle deviation of the rotary lock of a pull-rod type single-lift spreader, a spring is provided between the first connecting ear and the part to be connected.

[0023] The utility model has the following beneficial effects:

[0024] By providing a safety column and a connecting gasket, the connecting rod body and the connecting rod ball head are fixed to avoid looseness between the two. At the same time, the position of the rotary lock and the state of the connecting rod can be determined by observing the position and deformation of the connecting gasket safety column.

[0025] The connecting gasket can reduce the impact of vibration on the tie rod when the box is loaded, and act as a reference point in daily maintenance and repair. If the connecting gasket becomes loose, deformed or displaced, the tie rod must be checked to ensure the reliability of the tie rod and the accuracy of the stroke, thereby increasing safety and reducing the occurrence of accidents.

[0026] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A structural schematic diagram of an embodiment of a simple device for detecting the angle deviation of a rotary lock of a pull-rod type single-box sling provided by the utility model;

[0028] Figure 2 A structural schematic diagram of a connecting gasket in an embodiment of a simple device for detecting the angle deviation of a rotary lock of a pull-rod type single-box sling provided by the utility model;

[0029] Figure 3 The utility model provides a schematic assembly diagram of an embodiment of a simple device for detecting the angle deviation of a rotary lock of a pull-rod type single-box sling. DETAILED DESCRIPTION

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0031] It should be understood that terms such as “having”, “including” and “comprising” used herein do not specify the existence or addition of one or more other elements or combinations thereof.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model provides a simple device for detecting the angle deviation of the rotary lock of a pull rod type single box sling, which comprises:

[0033] The rod body 1 has a threaded hole at each end, and a safety column 2 is welded on the upper surface of both ends of the rod body 1, and the top of the safety column 2 is provided with an external thread;

[0034] A ball-end connecting rod 3, which has a ball head connected to the bearing of the part to be connected, and a screw part threadedly connected to the threaded hole;

[0035] and a connecting gasket 4, on which a strip groove 41 is provided;

[0036] in;

[0037] The width of the strip groove 41 is greater than the diameter of the safety column 2;

[0038] One end of the strip groove 41 has a circular portion 42 for the connecting shaft of the part to be connected to pass through;

[0039] The connecting shaft and the safety column 2 fix the connecting gasket on the rod body 1 and the ball head connecting rod 3 respectively through a cotter pin and a nut.

[0040] By providing a safety column and a connecting gasket, the rod body and the connecting rod ball head are fixed to avoid looseness between the two, and at the same time reduce the impact force on the connecting rod 5. The state of the connecting rod can also be determined by observing the deformation of the connecting gasket.

[0041] Those skilled in the art may set a displacement sensor at the connection gasket according to actual needs to detect its position and deformation, and the specific position and detection method will not be described in detail here.

[0042] In one embodiment of the simple device for detecting the angle deviation of the rotary lock of an old-style single-box spreader provided by the utility model,

[0043] The two ends of the rod body 1, the ball head and the left and right sides of the root of the screw part are respectively provided with a first connecting ear 5, a second connecting ear 6 and a third connecting ear 7;

[0044] The first connecting ear 5 is located on the inner side of the safety column 2;

[0045] The first connecting ear 5, the second connecting ear 6 and the third connecting ear 7 are all provided with pin holes 8, and each pin hole 8 is provided with a pin shaft. A split pin passes through the three pin shafts in sequence to fix the first connecting ear 5, the second connecting ear 6 and the third connecting ear 7.

[0046] The rod body and the ball head connecting rod are tightly fixed together by three pairs of connecting ears, so as to avoid looseness between the two.

[0047] In one embodiment of the simple device for detecting the angle deviation of the rotary lock of an old-style single-box spreader provided by the utility model,

[0048] A U-shaped opening groove is respectively arranged on both sides of the threaded hole for the third connecting ear 7 to be inserted into;

[0049] Two semicircular clamps 8 are clamped on the outer side of the third connecting ear 7 relative to each other, and the semicircular clamps 8 have openings for the third connecting ear 7 to pass through.

[0050] The cooperation between the third connecting ear and the U-shaped opening groove can prevent the screw rod from rotating, while the fixing by the clamp can prevent the screw rod from moving forward and backward, making the overall structure more stable.

[0051] In one embodiment of the simple device for detecting the angle deviation of the rotation lock of an old-style single-box spreader provided by the utility model, the outer diameter of the root of the screw portion is smaller than the inner diameter of the threaded hole, so that it is convenient to insert into the threaded hole.

[0052] In one embodiment of the simple device for detecting the angle deviation of the rotary lock of an old-style single-box sling provided by the utility model, a connection gasket accommodating groove is further provided at the upper end of the semicircular clamp 8 .

[0053] In one embodiment of the simple device for detecting the angle deviation of the rotary lock of an old-style single-box spreader provided by the utility model, a spring is arranged between the first connecting ear 5 and the part to be connected to enhance the connection with the part to be connected.

[0054] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation scheme. It can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to specific details.

Claims

1. A simple device for detecting the angle deviation of the rotary lock of a pull-rod type single-lift spreader. It is characterized in that include: The rod body has a threaded hole at each end, and a safety column is welded on the upper surface of both ends of the rod body, and the top of the safety column is provided with an external thread; A ball-end connecting rod, which has a ball head connected to the bearing of the part to be connected, a screw part threadedly connected to the threaded hole and a connecting gasket, on which a strip groove is provided; in; The width of the strip groove is greater than the diameter of the safety column; One end of the strip groove has a circular portion for the connecting shaft of the part to be connected to pass through; The connecting shaft and the safety column respectively fix the connecting gasket on the rod body and the ball head connecting rod through a split pin and a nut.

2. A simple device for detecting the angle deviation of the rotary lock of a pull-rod type single-lift spreader as claimed in claim 1, It is characterized in that The two ends of the rod body, the ball head and the left and right sides of the root of the screw part are respectively provided with a first connecting ear, a second connecting ear and a third connecting ear; The first connecting ear is located on the inner side of the safety column; The first connecting ear, the second connecting ear and the third connecting ear are all provided with pin holes, and a pin shaft is arranged in each pin hole. A split pin passes through the three pin shafts in sequence to fix the first connecting ear, the second connecting ear and the third connecting ear.

3. A simple device for detecting the angle deviation of the rotary lock of a pull-rod type single-lift spreader as claimed in claim 2, It is characterized in that A U-shaped opening groove is respectively arranged on both sides of the threaded hole for the third connecting ear to be inserted into; Two semicircular clamps are relatively clamped on the outer side of the third connecting ear, and the semicircular clamps are provided with openings for the third connecting ear to pass through.

4. A simple device for detecting the angle deviation of the rotary lock of a pull-rod type single-lift spreader as claimed in claim 3, It is characterized in that The outer diameter of the root of the screw portion is smaller than the inner diameter of the threaded hole.

5. A simple device for detecting the angle deviation of the rotary lock of a pull-rod type single-lift spreader as claimed in claim 4, It is characterized in that The upper end of the semicircular clamp is also provided with a connection gasket accommodating groove.

6. A simple device for detecting the angle deviation of the rotary lock of a pull-rod type single-lift spreader as claimed in claim 5, It is characterized in that A spring is arranged between the first connecting ear and the part to be connected.

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