Automatic locking device for hydrometric cableway

Abstract

The utility model relates to the technical field of hydrological observation, in particular to a hydrological cableway automatic locking device which comprises a locking mechanism, the locking mechanism is installed on a cableway main cable, the locking mechanism comprises a fixed beam, a floating beam, a locking arm and a pod hanging arm, the fixed beam is arranged below the cableway main cable, the pod hanging arm is connected to the fixed beam, and the floating beam is arranged on the floating beam. The fixed beam is hung on the cableway main cable through the pod hanging arm, the floating beam is arranged below the fixed beam, and the floating beam and the fixed beam are connected with each other through the locking arm. By adding the cableway locking mechanism, after a crane drags the nacelle to a preset position, the nacelle can be fastened on the cableway main cable through the gravity of the nacelle, so that the problem of displacement of the nacelle caused by drooping and inclining of the cableway main cable is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrological observation, in particular to an automatic locking device for a hydrological cableway. Background Art

[0002] At present, the existing cableway for measuring river flow usually places the lead fish and the current meter in the corresponding position of the river according to the hydrological test specification, and relies on the weight of the lead fish to prevent the current meter from deviating from the cross-sectional position. The lead fish for hydrological cableway testing in the prior art is a hydrological testing instrument with a certain weight and a streamlined shape made of metal lead or lead-iron mixed casting, and common specifications include 8kg, 15kg, 30kg, 50kg, 75kg, 100kg, 150kg, and 200kg. Although the current hydrological cableway lead fish and the testing instrument are controlled by motors to rise and fall, the assembly, transportation, and testing processes still need to be completed manually, which increases the work intensity of hydrologists. Secondly, the low degree of automation of the prior art cannot realize all-day duty testing, which greatly wastes manpower, causes waste of human resources, and takes a long time to prepare, reducing work efficiency.

[0003] At present, the utility model patent with application number CN202320735459.0 in the prior art discloses a hydrological cableway pod device, which adopts the method of fixing the equipment pod on the cableway to realize unattended automatic measurement of fixed measuring points on the measuring section; the utility model patent with application number CN202320562649.7 in the prior art discloses an automatic control device for hydrological cableway flow measurement, which adopts a combination of an equipment pod and an intelligent trolley, and can realize the automatic / manual deployment of the equipment pod at a preset position on the cableway by the trolley. The equipment pod automatically completes the test task at the preset measuring point. At the same time, the trolley can also drag the equipment pod to the maintenance area to facilitate maintenance, repair and maintenance, and avoid water operations.

[0004] Although the above two patents have solved the problem of unattended automatic measurement of cableways, which is a huge improvement compared with the existing technology, there are still the following shortcomings:

[0005] In the multi-perpendicular method and multi-pod simultaneous testing mode, the pod is fixed to the main cable by gravity using a hanger. However, due to the natural sagging of the cableway or the sagging of the pod fixed on the cableway, the pod will slide on the cableway, causing inaccurate positioning, or the positioning may be accurate at the beginning but change over time, affecting the test positioning accuracy.

[0006] Although there are currently wire rope fall arresters on the market that can be used as locking mechanisms, there are still the following technical problems:

[0007] 1. When the crane places the pod on the cableway, during the contact and compression between the hanger and the cableway, the locking arm of the fall arrester will cause the pod to have longitudinal displacement during the force locking process.

[0008] 2. The wire rope fall arrester is fixed in one position for a long time. Affected by external factors such as wind and vibration, the locking position and the main rope are pressed tighter and tighter, which will damage the main rope. At the same time, when the crane moves the pod again, it may be squeezed too tight and cannot be opened.

[0009] Therefore, a hydrographic cableway automatic locking device that can solve the above-mentioned problems is needed. Utility Model Content

[0010] The utility model aims to provide an automatic locking device for a hydrographic cableway. By adding a cableway locking mechanism, the utility model can fasten the pod to the main cableway cable by the gravity of the pod after the pod is dragged to a preset position by a vehicle, thereby avoiding the problem of displacement of the pod due to the drooping and tilting of the main cableway cable.

[0011] The utility model adopts the following technical solution to solve the above technical problems: an automatic locking device for a hydrographic cableway, comprising a locking mechanism, which is installed on the main cable of the cableway, and the locking mechanism comprises a fixed beam, a floating beam, a locking arm and a pod hanging arm, the fixed beam is arranged below the main cable of the cableway, the pod hanging arm is connected to the fixed beam, the fixed beam is hung on the main cable of the cableway through the pod hanging arm, the floating beam is arranged below the fixed beam, and the floating beam and the fixed beam are connected to each other through the locking arm.

[0012] Furthermore, a positioning hole is provided on the locking arm, a limiting pin is fixedly connected to one end of the locking arm, and a locking block is integrally connected to the other end of the locking arm.

[0013] Furthermore, a limiting hole is provided on the fixed beam, and the limiting pin is slidably connected in the limiting hole.

[0014] Furthermore, the locking arm and the fixed beam are rotatably connected to each other via a rotating shaft.

[0015] Furthermore, a rectangular hole is opened on the top of the floating beam, and one end of the locking arm passes through the rectangular hole and extends into the interior of the pod hanging arm.

[0016] Furthermore, the fixed beam and the pod hanging arm are fixedly connected to each other via a plurality of fixing screws.

[0017] The utility model has the following advantages: the utility model provides an automatic locking device for a hydrographic cableway, and the utility model has the following advantages:

[0018] 1. The utility model adds a cableway locking mechanism. After the pod is dragged to a preset position by the vehicle, the pod can be fastened to the main cable of the cableway by the gravity of the pod, thereby avoiding the problem of displacement of the pod due to sagging and tilting of the main cable of the cableway.

[0019] 2. The locking arm and the pod hanging arm in the locking mechanism of the utility model are both symmetrical structures, which can avoid the problem of displacement of the pod during the tightening process due to unidirectional pressure during the locking process.

[0020] 3. The upper end of the locking arm of the utility model contacts the bottom of the cableway main cable through the locking block, avoiding point contact, expanding the contact area, and not damaging the cableway main cable; the limit hole of the utility model can limit the movement of the limit pin. The cooperation of the limit hole and the limit pin not only limits the range of motion of the locking arm, but also effectively controls the pressure exerted by the locking block on the cableway main cable, avoiding excessive pressure on the main cable by the locking block and causing damage to the cableway main cable. In extreme conditions such as storms and severe vibrations, the irregular shaking and instantaneous impact force of the pod can be transmitted to the locking arm through the floating beam. At this time, the pressure of the locking arm on the cableway main cable will not change, and the limit pin can release the impact force to the inside of the limit hole. This design ensures that even under extreme conditions, the pressing force of the locking arm on the cableway main cable remains within a safe range, preventing the cableway main cable from being damaged due to overload, and ensuring the stable locking of the pod. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 It is an enlarged structural schematic diagram of the locking arm in the utility model;

[0024] in:

[0025] 1. Cableway main rope; 2. Nacelle hanging arm; 3. Locking arm;

[0026] 301, limit pin; 302, locking block; 303, positioning hole;

[0027] 4. Fixed beam; 5. Floating beam; 501. Limiting hole;

[0028] 502, rectangular hole; 6, rotating shaft; 7, fixing screw. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. The terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] Embodiment 1:

[0032] Figure 1 It is a three-dimensional structural schematic diagram of the utility model. Figure 2 FIG. 1 is an enlarged structural diagram of the locking arm in the utility model. Figure 1 and Figure 2 The automatic locking device of a hydrographic cableway shown comprises a locking mechanism, which is installed on the main cable of the cableway 1 (one main cable of the cableway 1 is equipped with one set of locking mechanisms, and if it is a double main cableway, two identical locking mechanisms are required).

[0033] The locking mechanism in the utility model comprises a fixed beam 4, a floating beam 5, a locking arm 3 and a pod hanging arm 2, wherein the locking arm 3 and the pod hanging arm 2 are both bilaterally symmetrical structures, the fixed beam 4 is arranged below the cableway main rope 1, the fixed beam 4 is used to fix the pod hanging arm 2, and provide a fulcrum for the locking arm 3, the fixed beam 4 and the pod hanging arm 2 are fixedly connected to each other through a plurality of fixing screws 7, the fixed beam 4 is hung on the cableway main rope 1 through the pod hanging arm 2, wherein the pod hanging arm 2 can be a closed or semi-closed structure, and the pod hanging arm 2 in the present embodiment is a semi-closed structure, the floating beam 5 is arranged below the fixed beam 4, the floating beam 5 and the fixed beam 4 are connected to each other through the locking arm 3, the floating beam 5 increases or reduces the pressure of the locking arm 3 on the main rope through the relative movement with the fixed beam 4, the floating beam 5 can be connected to an external pod frame or as a part of the frame, and can also be directly connected to an external pod lifting mechanism to provide a lifting contact point for a crane (not shown in the figure).

[0034] The utility model has a positioning hole 303 on the locking arm 3, a limiting pin 301 is fixedly connected to one end of the locking arm 3, and a locking block 302 is integrally connected to the other end of the locking arm 3. The locking block 302 is used to contact the bottom of the cableway main rope 1. A limiting hole 501 is provided on the fixed beam 4, and the limiting pin 301 can slide left and right in the limiting hole 501. The limiting holes 501 in the utility model are symmetrically arranged at the left and right ends of the floating beam 5. When relative movement occurs between the fixed beam 4 and the floating beam 5, the limiting holes 501 of the locking arm 3 are symmetrically arranged at the left and right ends of the floating beam 5. The positioning pin 301 can slide left and right in the lifting limit hole 501, and the limit hole 501 can limit the movement of the limit pin 301. The cooperation between the limit hole 501 and the limit pin 301 not only limits the movement range of the locking arm 3, but also effectively controls the pressure applied by the locking block 302 to the cableway main rope 1, thereby avoiding the locking block 302 from applying too much pressure to the main rope and causing damage to the cableway main rope 1. In extreme conditions such as storms and severe vibrations, the irregular shaking and instantaneous impact force of the pod can be transmitted to the locking arm 3 through the floating beam 5. At this time, the pressure of the locking arm 3 on the cableway main rope 1 will not change, the limit pin 301 can release the impact force to the inside of the limit hole 501, and the upper end of the locking arm 3 will also tighten or relax the cableway main rope 1; when the limit pin 301 slides to the inner limit position of the limit hole 501, the distance between the fixed beam 4 and the floating beam 5 is the largest, so that the pod is in a locked state; when the limit pin 301 slides to the outer limit position of the limit hole 501, the distance between the fixed beam 4 and the floating beam 5 is the smallest, so that the pod is in a relaxed state.

[0035] The locking arm 3 and the fixed beam 4 in the utility model are rotatably connected to each other through the rotating shaft 6. The utility model has a rectangular hole 502 on the top of the floating beam 5, one end of the locking arm 3 passes through the rectangular hole 502 and extends into the interior of the pod hanging arm 2. The locking arm 3 in the utility model is a lever structure, and its fulcrum is on the fixed beam 4. By pulling down the locking arm 3, the cableway main rope 1 can be fastened between the upper end of the locking arm 3 and the pod hanger, and the upper end of the locking arm 3 contacts with the bottom of the cableway main rope 1 through the locking block 302 (avoiding point contact, expanding the contact area, and the contact surface is a roughened surface, not sharp, and will not damage the cableway main rope 1). In the utility model, the minimum distance between the fixed beam 4 and the floating beam 5 is determined by the outer position of the limiting hole 501, and the maximum distance between the fixed beam 4 and the floating beam 5 is determined by the inner position of the limiting hole 501. In addition to this embodiment, the maximum and minimum distances between the fixed beam 4 and the floating beam 5 can also be changed by changing the inner and outer positions of the limiting hole 501, thereby changing the maximum clamping force of the locking arm 3 on the cableway main rope 1 and the maximum release space after relaxation.

[0036] Workflow Description:

[0037] Lifting pod process:

[0038] Step 1: lift the pod by using an external crane (the crane has a lifting and lowering mechanism) to disengage the pod hanging arm 2 from the main cable of the cableway.

[0039] Step 2: As the crane hoisting mechanism continues to rise, the floating beam 5 begins to rise under the action of the upward traction force. The rise of the floating beam 5 causes the distance between the floating beam 5 and the fixed beam 4 to decrease.

[0040] Step 3: The limit pin 301 at the lower end of the locking arm 3 slides toward the outside of the lifting limit hole 501 as the floating beam 5 rises. This action reduces the pressing force of the upper end of the locking arm 3 on the cableway main rope 1.

[0041] Step 4: When the limit pin 301 slides to the outermost position of the limit hole 501, it indicates that the floating beam 5 has risen to the maximum height. At this time, the pod hanging arm 2 is completely out of contact with the cableway main cable 1, and the driving vehicle can freely move the pod on the cableway main cable 1 without being constrained by the cableway main cable 1.

[0042] Move the pod to the specified location:

[0043] After the pod is detached from the cableway main cable 1, the driving vehicle can drag the pod along the cableway main cable 1 to a preset operation or parking position.

[0044] Lower the pod and secure it:

[0045] Step 1: When the pod reaches the predetermined position, the crane starts the hoisting and lifting mechanism to descend.

[0046] Step 2: The floating beam 5 begins to descend under the action of the deadweight of the nacelle, and the distance between the floating beam 5 and the fixed beam 4 increases accordingly.

[0047] Step 3: As the floating beam 5 descends, the locking block 302 at the upper end of the locking arm 3 gradually applies pressure to the cableway main rope 1 due to the lever principle, and at the same time, the limiting pin 301 slides inwardly in the limiting hole 501.

[0048] Step 4: When the limiting pin 301 slides to the innermost position of the limiting hole 501 , it indicates that the locking arm 3 has achieved maximum compression on the cableway main rope 1 , and the pod is therefore firmly fixed on the cableway main rope 1 .

[0049] Step 5: At this point, the trolley is out of contact with the pod, and the trolley can safely return to its preset position, while the pod remains at the designated position on the cableway main cable 1, completing the fixing operation.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An automatic locking device for a hydrographic cableway, characterized in that: It comprises a locking mechanism, which is installed on a cableway main rope (1), and the locking mechanism comprises a fixed beam (4), a floating beam (5), a locking arm (3) and a pod hanging arm (2); The fixed beam (4) is arranged below the cableway main rope (1), the pod hanging arm (2) is connected to the fixed beam (4), the fixed beam (4) is hung on the cableway main rope (1) through the pod hanging arm (2), the floating beam (5) is arranged below the fixed beam (4), and the floating beam (5) and the fixed beam (4) are connected to each other through a locking arm (3).

2. The automatic locking device for hydrographic cableway according to claim 1, characterized in that: The locking arm (3) is provided with a positioning hole (303), a limiting pin (301) is fixedly connected to one end of the locking arm (3), and a locking block (302) is integrally connected to the other end of the locking arm (3).

3. The automatic locking device for hydrographic cableway according to claim 2, characterized in that: A limiting hole (501) is provided on the fixed beam (4), and the limiting pin (301) is slidably connected in the limiting hole (501).

4. The automatic locking device for hydrographic cableway according to claim 2, characterized in that: The locking arm (3) and the fixed beam (4) are rotatably connected to each other via a rotating shaft (6).

5. The automatic locking device for hydrographic cableway according to claim 1, characterized in that: A rectangular hole (502) is provided on the top of the floating beam (5), and one end of the locking arm (3) passes through the rectangular hole (502) and extends into the interior of the pod hanging arm (2).

6. The automatic locking device for hydrographic cableway according to claim 1, characterized in that: The fixed beam (4) and the pod hanging arm (2) are fixedly connected to each other via a plurality of fixing screws (7).

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