Shaft withdrawing device for hinge seat of hydraulic hoist of radial gate

Abstract

The utility model provides a shaft withdrawing device of a hinge seat of a hydraulic hoist of a radial gate, which solves the problem that the shaft of the hinge seat of the hydraulic hoist is difficult to withdraw. The shaft withdrawing mechanism comprises a shaft withdrawing mechanism and a hinge seat installed on a side wall, the hinge seat comprises a pin shaft which is perpendicular to the side wall and extends in the left-right direction, and an internal thread groove hole with a right opening is formed in the right end of the pin shaft; the shaft retreating mechanism comprises a shaft retreating connecting rod which is inserted into the internal thread groove hole and extends rightwards, the shaft retreating connecting rod comprises a threaded rod section, the left end of the threaded rod section is inserted into the internal thread groove hole and is in threaded connection with the internal thread groove hole, and the right end of the threaded rod section extends to the outside of the internal thread groove hole; the shaft withdrawing connecting rod is arranged on the baffle in a penetrating mode and provided with an anti-disengaging structure used for preventing the baffle from withdrawing from the right portion. A jack extending leftwards is arranged on the left side of the baffle, the left end of the jack abuts against the side wall, and the maximum extending length of the side wall is larger than the retreating length of the pin shaft from the hinge seat.

Description

Technical Field

[0001] This utility model relates to the field of water engineering maintenance equipment technology, and in particular to a retraction device for the hydraulic opening and closing mechanism hinge seat of an arc gate. Background Technology

[0002] In the design of metal structures for hydraulic engineering projects, hydraulic hoists are commonly used for opening and closing arched gates. The gate's lifting lugs are typically connected to the hoist's lifting head via cylindrical hinges, with the other end of the hydraulic hoist connected to a pin on a hinged seat fixed to the side wall of the gate pier. After a period of use, for maintenance, upkeep, and inspection of the hydraulic hoist and the hinged seat pin, it is frequently necessary to remove the pin from the hinged seat. Currently, the following problems exist when performing the pin removal operation: Due to the large size and weight of the pin, manual binding and pulling out the pin is very inconvenient and difficult. This not only poses a safety risk of falling and injuring people, but also, because the pin's surface is relatively smooth, it is difficult to bind and secure the pin with ropes before pulling it out (slippage is likely), making the pin removal operation quite challenging. Utility Model Content

[0003] To address the difficulty in retracting the hinge seat of a hydraulic gate opener as described in the background art, this invention proposes a retraction device for the hinge seat of a hydraulic gate opener for an arc-shaped gate.

[0004] The technical solution of this utility model is: a shaft retraction device for the hydraulic opening and closing mechanism hinge seat of an arc gate, including a shaft retraction mechanism and a hinge seat installed on the side wall. The hinge seat includes a pin that is perpendicular to the side wall and extends in the left and right direction. The right end of the pin is provided with an internal threaded slot with a right opening.

[0005] The retraction mechanism includes a retraction connecting rod that is inserted into an internal threaded slot and extends to the right. The retraction connecting rod includes a threaded rod segment. The left end of the threaded rod segment is inserted into the internal threaded slot and threadedly connected to the internal threaded slot. The right end of the threaded rod segment extends to the outside of the internal threaded slot.

[0006] The retraction connecting rod passes through the baffle, and the retraction connecting rod is provided with an anti-detachment structure to prevent the baffle from retracting from the right side;

[0007] A jack extending to the left is provided on the left side of the baffle. The left end of the jack abuts against the side wall, and the maximum extension length of the side wall is greater than the length of the pin that retracts from the hinge seat.

[0008] Preferably, the left side of the baffle is provided with two jacks spaced apart, and the two jacks are symmetrical about the pin axis.

[0009] Preferably, the anti-detachment structure includes a limiting nut sleeved on the threaded rod segment, the limiting nut being threadedly connected to the threaded rod segment, and the limiting nut being located on the right side of the baffle.

[0010] Preferably, the right end of the retractable shaft connecting rod has a through pin hole, and a lever extending in the front-to-back direction is movably inserted into the pin hole. The lever is located to the right of the limit nut.

[0011] Preferably, a working platform is fixedly installed on the side wall, and the working platform is located below the hinge seat;

[0012] The work platform is detachably connected to an upward-extending upright, and a horizontal bar extending to the left is detachably connected to the upright, with the horizontal bar located above the pin.

[0013] A lifting device is fixedly installed on the crossbar. The lifting device includes a second sling, one end of which is connected to the lifting device, and the other end of the lifting device is tied to a pin.

[0014] Preferably, a first lifting cable is detachably connected between the crossbar and the cylinder liner of the jack.

[0015] Advantages of this invention: When performing the shaft retraction operation, this device connects the shaft retraction connecting rod to the pin through the shaft retraction mechanism. By pushing with a jack, the shaft retraction connecting rod and the pin move to the right, thereby quickly disengaging the pin from the hinge seat and solving the problem of difficulty in retracting the shaft from the hinge seat of the hydraulic gate opener.

[0016] Meanwhile, the connection between the first sling connected to the crossbar and the jack, and the second sling connected to the pin via the lifting device on the crossbar, can prevent the pin from being accidentally dropped after it is removed, thus avoiding safety risks. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0018] Figure 1 This is a structural schematic diagram of the retraction device of Embodiment 1 from a main view angle during use;

[0019] Figure 2 for Figure 1 A top-view structural diagram of the retraction mechanism during use;

[0020] Figure 3 for Figure 2A three-dimensional structural diagram of the hinge seat in the diagram;

[0021] In the diagram, 1. Side wall, 2. Base, 3. Bushing, 4. Pin, 5. Internal threaded slot, 6. Retractable shaft connecting rod, 601. Threaded rod segment, 7. Baffle, 8. Limit nut, 9. Actuating rod, 10. Jack, 11. Working platform, 12. Upright pole, 13. Horizontal bar, 14. First lifting sling, 15. Lifting device. Detailed Implementation

[0022] 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.

[0023] Example 1: A retraction device for the hinge seat of a hydraulic opening and closing mechanism of an arc-shaped gate, such as... Figure 2 As shown, it includes a retraction mechanism and a hinged seat mounted on the side wall 1, such as Figure 3 As shown, the hinge seat includes a base 2 fixedly installed on the side wall 1. A bushing 3 is fixedly provided on the right side of the base 2. A pin 4 is rotatably connected inside the bushing 3. The pin 4 extends in the left and right direction. The right end of the pin 4 extends to the right side of the bushing 3. An internal threaded slot 5 with a right opening is provided on the right end of the pin 4.

[0024] The retraction mechanism includes a retraction connecting rod 6 that is inserted into the internal threaded slot 5 and extends to the right. The retraction connecting rod 6 includes a threaded rod segment 601. The left end of the threaded rod segment 601 is inserted into the internal threaded slot 5 and threadedly connected to the internal threaded slot 5. The right end of the threaded rod segment 601 extends to the outside of the internal threaded slot 5.

[0025] The retraction connecting rod 6 passes through the baffle 7. In this embodiment, the baffle 7 is made of steel plate, and a screw hole is formed on the steel plate for the retraction connecting rod 6 to pass through. The retraction connecting rod 6 is provided with an anti-detachment structure to prevent the baffle 7 from retracting from the right. Specifically, as shown... Figure 2 As shown, the anti-detachment structure includes a limiting nut 8 sleeved on the threaded rod section 601. The limiting nut 8 is threadedly connected to the threaded rod section 601 and is located on the right side of the baffle 7.

[0026] To facilitate the rotation of the shaft connecting rod 6 and to provide an anti-loosening function for the limit nut 8 during use, such as Figure 2 As shown, the right end of the retractable shaft connecting rod 6 has a through pin hole, and a lever 9 extending in the front-to-back direction is movably inserted into the pin hole. The lever 9 is located to the right of the limit nut 8.

[0027] Two jacks 10, spaced apart and extending to the left, are provided on the left side of the baffle 7. The two jacks 10 are symmetrical about the pin 4. The left end of the jack 10 abuts against the side wall 1. The maximum extension length of the side wall 1 is greater than the withdrawal length of the pin 4 from the hinge seat to ensure the smooth withdrawal of the pin 4. In this embodiment, the jacks 10 are hydraulic jacks. In other embodiments, jacking devices with the same action (such as hydraulic cylinders or mechanical jacks) can also be used.

[0028] To prevent the retraction mechanism from accidentally falling off after pin 4 is withdrawn, such as Figure 1 As shown, a working platform 11 is fixedly installed on the side wall 1, and the working platform 11 is located below the hinge seat; an upwardly extending upright 12 is detachably connected to the working platform 11 via a cross buckle, and a leftward extending horizontal bar 13 is detachably connected to the upright 12 via a cross buckle, and the horizontal bar 13 is located above the pin 4.

[0029] A lifting device 15 is fixedly installed on the crossbar 13. In this embodiment, the lifting device 15 is an electric hoist. The lifting device 15 includes a second sling, one end of which is connected to the lifting device 15, and the other end of the lifting device 15 is tied and fixed to the pin 4.

[0030] The first sling 14 is detachably connected between the crossbar 13 and the cylinder liners of the two jacks 10 by binding and wire rope clamps.

[0031] Working principle: When in use, first fix the upright 12 to the working platform 11 with cross buckles, and then fix the crossbar 13 to the upright with cross buckles.

[0032] After threading the threaded section 601 of the retractable shaft connecting rod 6 to the internal threaded slot 5 of the pin 4 by using the actuating rod 9, the baffle 7 is fitted onto the threaded section 601 of the retractable shaft connecting rod 6. The actuating rod 9 is then pulled out, and the limiting nut 8 is installed on the threaded section 601 to limit the baffle 7. The actuating rod 9 is then reinserted onto the retractable shaft connecting rod 6.

[0033] Since the pin 4 is completely fitted inside the bushing 3 during use, it is necessary to first use the jack 10 to remove the pin 4 from the bushing 3 by a certain length, forming a shape as shown. Figure 2 After reaching the indicated state, first pause the jacking of jack 10, tie and fix the lower end of the second sling to pin 4, and tie the two first slings 14 to the crossbar 13 and the cylinder liners of the two jacks 10 respectively through wire rope clips.

[0034] Then, using jack 10, continue to retract pin 4. After pin 4 is completely retracted, remove jack 10, lever 9, limit nut, and baffle 7 in sequence. Untie the upper ends of the two first lifting cables 10 and slowly place jack 10 onto the work platform 11. Then, using lifting device 15, slowly place pin 4 and retraction connecting rod 6 onto the work platform 11. After removing retraction connecting rod 6 and pin 4, inspect pin 4. After inspection, reinstall pin 4 into bushing 3.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims and not by the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A retraction device for the hinge seat of a hydraulic opening and closing mechanism of an arc-shaped gate, characterized in that: It includes a retractable shaft mechanism and a hinge seat mounted on the side wall (1). The hinge seat includes a pin (4) that is perpendicular to the side wall (1) and extends in the left-right direction. The right end of the pin (4) has an internal threaded slot (5) with a right opening. The retraction mechanism includes a retraction connecting rod (6) inserted into the internal threaded slot (5) and extending to the right. The retraction connecting rod (6) includes a threaded rod segment (601). The left end of the threaded rod segment (601) is inserted into the internal threaded slot (5) and threadedly connected to the internal threaded slot (5). The right end of the threaded rod segment (601) extends to the outside of the internal threaded slot (5). The retraction connecting rod (6) passes through the baffle (7), and the retraction connecting rod (6) is provided with an anti-detachment structure to prevent the baffle (7) from retracting from the right. A jack (10) extending to the left is provided on the left side of the baffle (7). The left end of the jack (10) abuts against the side wall (1). The maximum extension length of the side wall (1) is greater than the withdrawal length of the pin (4) from the hinge seat.

2. The retraction device of the hydraulic opening and closing mechanism hinge seat of an arc-shaped gate as described in claim 1, characterized in that: Two jacks (10) are provided on the left side of the baffle (7) with a front-to-back spacing. The two jacks (10) are symmetrical about the pin (4).

3. The retraction device of the hydraulic opening and closing mechanism hinge seat of an arc-shaped gate as described in claim 1, characterized in that: The anti-detachment structure includes a limiting nut (8) sleeved on the threaded rod section (601), the limiting nut (8) being threadedly connected to the threaded rod section (601), and the limiting nut (8) being located on the right side of the baffle (7).

4. The retraction device of the hydraulic opening and closing mechanism hinge seat of an arc-shaped gate as described in claim 3, characterized in that: The right end of the retractable shaft connecting rod (6) is provided with a through pin hole, and a lever (9) extending in the front-to-back direction is movably inserted in the pin hole. The lever (9) is located to the right of the limit nut (8).

5. The retraction device for the hydraulic opening and closing mechanism hinge seat of an arc-shaped gate as described in claim 1 or 2, characterized in that: A working platform (11) is fixedly installed on the side wall (1), and the working platform (11) is located below the hinge seat; The work platform (11) is detachably connected to an upwardly extending upright (12), and the upright (12) is detachably connected to a leftward extending horizontal bar (13), which is located above the pin (4). A lifting device (15) is fixedly installed on the crossbar (13). The lifting device (15) includes a second sling. One end of the second sling is connected to the lifting device (15), and the other end of the lifting device (15) is tied to the pin (4).

6. The retraction device of the hydraulic opening and closing mechanism hinge seat of an arc-shaped gate as described in claim 5, characterized in that: A first lifting cable (14) is detachably connected between the crossbar (13) and the cylinder liner of the jack (10).

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