Auxiliary device for opening and closing mandoor of hydropower station unit

Abstract

A hydropower station unit mandoor opening and closing auxiliary device comprises a supporting arm, the supporting arm is composed of a first arm rod, a second arm rod and a third arm rod, one end of the first arm rod is connected with one end of the second arm rod through a spherical joint, an electric wrench clamp is arranged at the other end of the first arm rod, and the other end of the second arm rod is hinged to one end of the third arm rod; the electric wrench clamp is composed of two semicircular plates, and the two semicircular plates are folded to form a whole circle and clamp and support the electric wrench. By the adoption of the structure, equipment such as the electric wrench and the like can be effectively supported when the man door of the hydropower station unit is opened, the labor intensity of manually holding the electric wrench by hand is reduced, and the door opening operation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydropower station equipment technology, specifically an auxiliary device for opening and closing the entrance door of a hydropower station unit. Background Technology

[0002] Because the manhole doors at the hydropower station unit site are secured with bolts when closed to ensure the airtightness of the door panels, when opening the doors before maintenance, personnel need to use electric wrenches to remove the bolted parts. Due to the large number of bolts and the heavy weight of the electric wrench, the long-term operation of the electric wrench by personnel results in high labor intensity and low work efficiency. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an auxiliary device for opening and closing the entrance door of a hydropower station unit, which can effectively support equipment such as electric wrenches when opening the entrance door of a hydropower station unit, reduce the labor intensity of manually holding the electric wrench, and improve the efficiency of the door opening operation.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an auxiliary device for opening and closing a hydropower station unit entrance door, including a support arm, the support arm being composed of a first arm, a second arm and a third arm, one end of the first arm and one end of the second arm being connected by a ball joint, the other end of the first arm being provided with an electric wrench clamp, and the other end of the second arm and one end of the third arm being hinged together;

[0005] The electric wrench clamp consists of two semi-circular plates that come together to form a complete circle and clamp and support the electric wrench.

[0006] In a preferred embodiment, the end of the third arm away from the second arm is hinged to a hinge seat, which is fixedly mounted on the wall on one side of the entrance door.

[0007] In a preferred embodiment, the end of the third arm furthest from the second arm is hinged to a hinge seat, which is fixedly mounted on a fixed upright plate.

[0008] The fixed upright plate is fixedly installed on the top surface of the movable box, and the bottom of the movable box is also equipped with casters.

[0009] In a preferred embodiment, a wall groove is provided on the wall on one side of the entrance door, and the movable box can be pushed into the wall groove.

[0010] In a preferred embodiment, the third arm has a slot, and the second arm is located at one end of the slot, with the length of the slot not less than the length of the second arm.

[0011] In a preferred embodiment, one end of each of the two semi-circular plates constituting the electric wrench clamp is provided with a sleeve, and one end of the first arm is provided with two fixed shafts. The sleeve is sleeved on the fixed shafts, and a torsion spring is provided between the sleeve and the fixed shafts.

[0012] In a preferred embodiment, the inner circular surface of the semi-circular plate is provided with anti-slip protrusions.

[0013] In a preferred embodiment, a telescopic rod is provided between the two semi-circular plates. One end of the telescopic rod is located between the two semi-circular plates and has an electric wrench mounting groove on that end. The other end extends into the inner groove provided at the end of the first arm. An upward adjusting rod is provided on the top surface of one end of the telescopic rod located in the inner groove. The adjusting rod passes through the strip groove on the top surface of the inner groove and extends to the outside of the top surface of the first arm.

[0014] The outer wall of the sleeve is provided with ring teeth, and the telescopic rod portion passing between the two sleeves is provided with flat teeth on both sides that mesh with the ring teeth.

[0015] The auxiliary device for opening and closing the access door of a hydropower station unit provided by this utility model has the following advantages by adopting the above-mentioned structure:

[0016] (1) By using electric wrench clamps and flexible support arm structure, operators can complete the opening and closing of the door more efficiently, greatly reducing the time and labor intensity of manual operation;

[0017] (2) This device can adapt to the opening and closing operation of entry doors of different sizes and positions by adjusting the angle and position between each arm, and has high flexibility and applicability.

[0018] (3) When the mobile box installation method is adopted, the bottom is equipped with casters, which makes the device easy to move to the required position. The wall groove design allows the device to be embedded in the wall when not in use, which saves space and is easy to manage. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention during the door opening operation.

[0021] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of one end of the first arm of the present invention, which is equipped with an electric wrench clamp.

[0023] In the diagram: 1. Entrance door; 2. Fixing bolt; 3. Support arm; 301. First arm; 302. Second arm; 303. Third arm; 4. Moving box; 5. Casters; 6. Fixed upright plate; 7. Hinge seat; 8. Slot; 9. Ball joint; 10. Electric wrench clamp; 10. Sleeve; 1001. Anti-slip protrusion; 1002. Fixed shaft; 11. Torsion spring; 12. Telescopic rod; 13. Electric wrench mounting slot; 131. Adjusting upright; 132. Inner groove; 14. Flat tooth; 15. Ring tooth; 16. Detailed Implementation

[0024] like Figure 1 In the present invention, an auxiliary device for opening and closing a gate for a hydropower station unit includes a support arm 3, which is composed of a first arm 301, a second arm 302 and a third arm 303. One end of the first arm 301 is connected to one end of the second arm 302 through a ball joint 9. An electric wrench clamp 10 is provided on the other end of the first arm 301. The other end of the second arm 302 is hinged to one end of the third arm 303.

[0025] The electric wrench clamp 10 consists of two semi-circular plates that come together to form a complete circle and clamp and support the electric wrench.

[0026] In a preferred embodiment, the end of the third arm 303 away from the second arm 302 is hinged to the hinge seat 7, and the hinge seat 7 is fixedly installed on the wall on one side of the entrance door 1.

[0027] Example 2:

[0028] like Figure 2 As shown, based on Embodiment 1, the device can be further designed to be easily movable, specifically as follows:

[0029] The end of the third arm 303 away from the second arm 302 is hinged to the hinge seat 7, and the hinge seat 7 is fixedly mounted on a fixed upright plate 6.

[0030] The fixed upright plate 6 is fixedly installed on the top surface of the movable box 4, and the bottom of the movable box 4 is also provided with casters 5.

[0031] In a preferred embodiment, a wall groove is provided on the wall on one side of the entrance door 1, and the movable box 4 can be pushed into the wall groove.

[0032] Example 3:

[0033] Based on Embodiment 1 or 2, the third arm 303 is provided with a slot 8, and the second arm 302 is provided at one end of the slot 8. The length of the slot 8 is not less than the length of the second arm 302.

[0034] In a preferred embodiment, one end of each of the two semi-circular plates constituting the electric wrench clamp 10 is provided with a sleeve 1001, and one end of the first arm 301 is provided with two fixed shafts 11. The sleeve 1001 is sleeved on the fixed shafts 11, and a torsion spring 12 is provided between the sleeve 1001 and the fixed shafts 11.

[0035] In a preferred embodiment, the inner circular surface of the semi-circular plate is provided with anti-slip protrusions 1002.

[0036] In a preferred embodiment, a telescopic rod 13 is provided between the two semi-circular plates. One end of the telescopic rod 13 is located between the two semi-circular plates and is provided with an electric wrench mounting groove 131. The other end extends into the inner groove 14 provided at the end of the first arm 301. An upward adjusting rod 132 is provided on the top surface of one end of the telescopic rod 13 located in the inner groove 14. The adjusting rod 132 passes through the strip groove on the top surface of the inner groove 14 and extends to the outside of the top surface of the first arm 301.

[0037] The outer wall of the sleeve 1001 is provided with ring teeth 16, and the telescopic rod 13 passing between the two sleeves 1001 is provided with flat teeth 15 on both sides that mesh with the ring teeth 16.

[0038] In the structure described in this embodiment, the electric wrench mounting slot 131 can provide initial support for the electric wrench, and then the electric wrench clamp 10 can perform secondary clamping and fixing of the electric wrench, effectively ensuring the stability of the electric wrench during operation.

[0039] In the above scheme, the torsion spring 12 keeps the electric wrench clamp 10 in an inward clamping state under normal conditions. When it is necessary to fix the electric wrench, the adjusting rod 132 is manually pushed towards the electric wrench clamp 10, so that the engagement between the flat tooth 15 and the ring tooth 16 causes the electric wrench clamp 10 to unfold. At the same time, the telescopic rod 13 extends. Then, the electric wrench is placed on the electric wrench mounting slot 131 at one end of the telescopic rod 13. After releasing the adjusting rod 132, the torsion spring 12 drives the above-mentioned components to reset, thereby fixing the handle position of the electric wrench at different heights.

[0040] Then, by manually pushing the support arm 3, the electric wrench on it can be aligned with the fixing bolts 2 at different positions on the entrance door 1 to remove the bolts.

[0041] During the removal of the aforementioned fixing bolts 2, there is no need for personnel to hold an electric wrench, thus avoiding the problem of increased labor intensity caused by personnel holding an electric wrench for a long time, and thereby greatly improving the efficiency of the removal of fixing bolts 2 before opening the entrance door 1.

Claims

1. An auxiliary device for opening and closing the access door of a hydropower station unit, characterized in that: Includes a support arm (3), which is composed of a first arm (301), a second arm (302) and a third arm (303). One end of the first arm (301) is connected to one end of the second arm (302) through a ball joint (9). An electric wrench clamp (10) is provided on the other end of the first arm (301). The other end of the second arm (302) is hinged to one end of the third arm (303). The electric wrench clamp (10) consists of two semi-circular plates. The two semi-circular plates are joined together to form a complete circle and clamp and support the electric wrench.

2. The auxiliary device for opening and closing the access door of a hydropower station unit according to claim 1, characterized in that: The third arm (303) is hinged at the end away from the second arm (302) to the hinge seat (7), which is fixedly installed on the wall on one side of the entrance door (1).

3. The auxiliary device for opening and closing the access door of a hydropower station unit according to claim 1, characterized in that: The end of the third arm (303) away from the second arm (302) is hinged to the hinge seat (7), and the hinge seat (7) is fixedly mounted on a fixed upright plate (6); The fixed upright plate (6) is fixedly installed on the top surface of the movable box (4), and the bottom of the movable box (4) is also provided with casters (5).

4. The auxiliary device for opening and closing the access door of a hydropower station unit according to claim 3, characterized in that: The wall on one side of the entrance door (1) is provided with a wall groove, and the movable box (4) can be pushed into the wall groove.

5. An auxiliary device for opening and closing a hydropower station unit access door according to claim 2 or 3, characterized in that: The third arm (303) has a slot (8), and the second arm (302) is located at one end of the slot (8). The length of the slot (8) is not less than the length of the second arm (302).

6. An auxiliary device for opening and closing a hydropower station unit access door according to claim 2 or 3, characterized in that: The electric wrench clamp (10) has a sleeve (1001) at one end of the two semi-circular plates, and two fixed shafts (11) at one end of the first arm (301). The sleeve (1001) is sleeved on the fixed shaft (11), and a torsion spring (12) is provided between the sleeve (1001) and the fixed shaft (11).

7. The auxiliary device for opening and closing the access door of a hydropower station unit according to claim 6, characterized in that: The inner circular surface of the semi-circular plate is provided with anti-slip protrusions (1002).

8. The auxiliary device for opening and closing the access door of a hydropower station unit according to claim 6, characterized in that: A telescopic rod (13) is also provided between the two semi-circular plates. One end of the telescopic rod (13) is located between the two semi-circular plates and is provided with an electric wrench mounting groove (131). The other end extends into the inner groove (14) provided at the end of the first arm (301). An upward adjusting rod (132) is provided on the top surface of one end of the telescopic rod (13) located in the inner groove (14). The adjusting rod (132) passes through the strip groove on the top surface of the inner groove (14) and extends to the outside of the top surface of the first arm (301). The outer wall of the sleeve (1001) is provided with ring teeth (16), and the telescopic rod (13) passing between the two sleeves (1001) is provided with flat teeth (15) on both sides that mesh with the ring teeth (16).

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