Balance cylinder quick change structure and vertical valve pressure test device

Abstract

The utility model relates to a balance cylinder quick-change structure and a vertical valve pressure test device, the balance cylinder quick-change structure comprises a fixed seat, a clamping jaw, a positioning plate, a rotating plate and a self-locking type indexing pin, the clamping jaw comprises a connecting end and a fixed end, the connecting end of the clamping jaw is connected with the fixed seat through a rotating shaft, the fixed end of the clamping jaw is used for fixing a balance cylinder, and the self-locking type indexing pin is connected with the positioning plate. One end of the rotating plate is connected with the fixed seat through an eccentric shaft, the other end of the rotating plate is adjustably connected with the self-locking indexing pin, the positioning plate is connected with the side end of the clamping jaw, a positioning hole is formed in the positioning plate, and the self-locking indexing pin penetrates through the rotating plate to be in positioning fit with the positioning hole of the positioning plate. The quick change structure of the balance cylinder is simple in structure and convenient to install, effectively reduces manual installation strength of the balance cylinder, and saves time cost.

Description

Technical Field

[0001] The utility model relates to the technical field of valve pressure testing devices, in particular to a balance cylinder quick-change structure and a vertical valve pressure testing device. Background Art

[0002] The vertical valve pressure test device usually installs a balancing cylinder on the mobile arch and the fixed arch to perform pressure testing on the vertical valve. In the prior art, the balancing cylinder is usually fixed by bolt connection. Since the weight of the balancing cylinder is generally more than 150kg, when installing the balancing cylinder on the upper mobile arch, it not only increases the manual installation intensity, but also greatly increases the time cost. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a balancing cylinder quick-change structure, which has a simple structure and is easy to install, effectively reduces the manual installation intensity of the balancing cylinder, and saves time cost.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a balancing cylinder quick-change structure, including a fixed seat, a claw, a positioning plate, a rotating plate and a self-locking indexing pin, the claw including a connecting end and a fixed end, the connecting end of the claw is connected to the fixed seat through a rotating shaft, the fixed end of the claw is used to fix the balancing cylinder, one end of the rotating plate is connected to the fixed seat through an eccentric shaft, the eccentric shaft contacts the connecting end of the claw, the self-locking indexing pin is installed at the other end of the rotating plate, the positioning plate is connected to the side end of the claw, a positioning hole is provided on the positioning plate, and the pin head of the self-locking indexing pin extends out of the rotating plate and is positioned and matched with the positioning hole of the positioning plate.

[0005] In one of the embodiments, a locking bolt assembly is provided on the fixing seat of the balancing cylinder quick-change structure, and the locking bolt assembly is used to install the fixing seat on an external device.

[0006] In one of the embodiments, both ends of the rotating shaft of the balancing cylinder quick-change structure are connected to the fixing seat through a positioning bolt assembly.

[0007] In one embodiment, one end of the eccentric shaft of the balancing cylinder quick-change structure is rotatably connected to a fixed seat, and the other end of the eccentric shaft is connected to a rotating plate via a fixing bolt assembly, and a limiting plate for limiting the eccentric shaft is symmetrically arranged on the fixed seat.

[0008] A vertical valve pressure testing device comprises a base and a fixed plate, a plurality of guide rods are arranged between the base and the fixed plate, a pressure testing assembly is arranged between adjacent guide rods, the pressure testing assembly comprises a fixed arch, a movable arch, a first driving assembly and a second driving assembly, the fixed arch is slidably matched with the base, the first driving assembly is mounted at the bottom end of the base, the driving end of the first driving assembly is connected to the fixed arch, the two ends of the movable arch are respectively sleeved on adjacent guide rods, the second driving assembly is mounted on the fixed plate, the driving end of the second driving assembly is connected to the movable arch, balancing cylinders are respectively arranged on the movable arch and the fixed arch, a balancing cylinder quick-change structure is symmetrically arranged on the movable arch, and the balancing cylinder quick-change structure is used to fix the balancing cylinder.

[0009] In one of the embodiments, the first driving component of the vertical valve pressure testing device is a cylinder.

[0010] In one of the embodiments, the second driving assembly of the vertical valve pressure testing device is a screw-nut transmission mechanism.

[0011] The beneficial effects of this application are:

[0012] The present application provides a quick-change structure for a balancing cylinder, which can quickly fix the balancing cylinder by adjusting the fixed position of the claw on the balancing cylinder and then fixing the adjusted claw by a self-locking indexing pin on a rotating plate. The claw can be released by pulling the self-locking indexing pin to quickly disassemble the balancing cylinder. The quick-change structure for a balancing cylinder has a simple structure and is easy to install, which can quickly install and disassemble the balancing cylinder, reduce the labor intensity of manual installation, and save time and cost.

[0013] The vertical valve pressure test device adopts a balance cylinder quick-change structure to achieve quick installation and quick disassembly of the balance cylinder. In the prior art, it takes more than 30 minutes to install and replace the balance cylinder by bolt connection, but it only takes about 5 minutes to install and replace the balance cylinder by using the balance cylinder quick-change structure. The vertical valve pressure test device not only improves the installation efficiency, but also greatly saves the installation and replacement time, and improves the working efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a balancing cylinder quick-change structure according to an embodiment of the present application;

[0015] Figure 2 A schematic diagram of a fixing seat, a clamping claw and a positioning plate of a balancing cylinder quick-change structure according to an embodiment of the present application;

[0016] Figure 3 A schematic diagram of a rotating plate and a self-locking indexing pin of a balancing cylinder quick-change structure according to an embodiment of the present application;

[0017] Figure 4 A schematic diagram of a vertical valve pressure testing device according to an embodiment of the present application;

[0018] Figure 5 A schematic diagram of an eccentric shaft and a clamping claw of a balancing cylinder quick-change structure according to an embodiment of the present application;

[0019] in:

[0020] 1. Quick-change structure of balancing cylinder; 11. Fixed seat; 12. Clamping claw; 13. Positioning plate; 14. Rotating plate; 15. Self-locking indexing pin; 16. Rotating shaft; 17. Eccentric shaft; 111. Locking bolt assembly; 121. Connecting end; 122. Fixed end; 131. Positioning hole; 161. Positioning bolt assembly; 171. Fixed bolt assembly; 112. Limiting plate; 2. Base; 3. Fixed plate; 4. Guide rod; 5. Pressure test assembly; 51. Fixed archway; 52. Moving archway; 53. First drive assembly; 54. Second drive assembly; 55. Balancing cylinder. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0022] like Figure 1 , Figure 2 and Figure 5 As shown, an embodiment of the present application provides a balancing cylinder quick-change structure, including a fixed seat 11, a claw 12, a positioning plate 13, a rotating plate 14 and a self-locking indexing pin 15. The claw 12 includes a connecting end 121 and a fixed end 122. The connecting end 121 of the claw 12 is connected to the fixed seat 11 through a rotating shaft 16. The fixed end 122 of the claw 12 is used to fix the balancing cylinder 55. One end of the rotating plate 14 is connected to the fixed seat 11 through an eccentric shaft 17. The eccentric shaft 17 contacts the connecting end 121 of the claw 12. The self-locking indexing pin 15 is installed at the other end of the rotating plate 14. The positioning plate 13 is connected to the side end of the claw 12. A positioning hole 131 is provided on the positioning plate 13. The pin head of the self-locking indexing pin 15 extends out of the rotating plate 14 and is positioned and matched with the positioning hole 131 of the positioning plate 13.

[0023] Specifically, the fixed seat 11 can be fixed to the mobile archway 52 by means of a locking bolt assembly 111. A groove for accommodating the connecting end 121 of the claw 12 is provided on the fixed seat 11. The connecting end 121 of the claw 12 is rotatably connected to the fixed seat 11 by means of a rotating shaft 16, so that the claw 12 can be rotatably adjusted according to the fixed position of the balance cylinder 55. The positioning plate 13 is fixed to the side end of the claw 12 close to the rotating plate 14 and the self-locking indexing pin 15 by means of a first bolt assembly. A positioning hole 131 is provided at one end of the positioning plate 13 close to the rotating plate 14. One end of the rotating plate 14 is rotatably connected to the fixed seat 11 by means of an eccentric shaft 17. The eccentric shaft 17 contacts the inner side end of the connecting end 121 of the claw 12 located at the fixed seat 11. The self-locking indexing pin 15 is installed at the other end of the rotating plate 14. The pin head of the self-locking indexing pin 15 can fix the positioning hole 131.

[0024] When the balancing cylinder 55 is manually positioned initially on the upper mobile arch 52, the claw 12 is rotated so that the fixed end 122 of the claw 12 clamps the end face of the balancing cylinder 55, and the rotating plate 14 is manually turned to rotate. The rotating plate 14 simultaneously drives the eccentric shaft 17 and the self-locking indexing pin 15 to rotate toward the claw 12. During the rotation process, the eccentric shaft 17 applies pressure to the claw 12. When the claw 12 and the fixed seat 11 are in a state of vertically pressing the balancing cylinder 55, the self-locking indexing pin 15 is rotated so that the pin head extends out of the rotating plate 14 and extends into the positioning hole 131 of the positioning plate 13, and the positioning hole 131 is fixed. The claw fixes and presses the balancing cylinder 55 on the mobile arch 52. When the balancing cylinder 55 needs to be replaced, it is only necessary to pull out the pin head of the self-locking indexing pin 15, the pin head is separated from the positioning hole 131, and the claw 12 is released to disassemble the balancing cylinder 55.

[0025] In the above structure, the adjusted claw 12 is fixed by the self-locking indexing pin 15, so that the balancing cylinder 55 can be quickly installed, and the balancing cylinder 55 can be quickly disassembled by pulling out the self-locking indexing pin 15 to disengage the claw 12. The balancing cylinder quick-change structure 1 has a simple structure and is easy to install, so that the balancing cylinder 55 can be quickly installed and disassembled, reducing the labor intensity of manual installation and saving time cost.

[0026] like Figure 2 As shown, in one embodiment, a locking bolt assembly 111 is provided on the fixing seat 11 of the balancing cylinder quick-change structure, and the locking bolt assembly 111 is used to install the fixing seat 11 on an external device. The locking bolt assembly 111 includes two locking bolts. The arrangement of the two locking bolts facilitates fixing the fixing seat 11 on the mobile archway 52 or the fixed archway 51.

[0027] like Figure 1As shown, in one embodiment, both ends of the rotating shaft 16 of the balancing cylinder quick-change structure are connected to the fixing seat 11 through a positioning bolt assembly 161. The positioning bolt assembly 161 includes two positioning bolts. The arrangement of the two positioning bolts facilitates fixing the rotating shaft 16 on the fixing seat 11.

[0028] like Figure 1 and Figure 2 As shown, in one embodiment, one end of the eccentric shaft 17 of the balancing cylinder quick-change structure is rotatably connected to the fixed seat 11, and the other end of the eccentric shaft 17 is connected to the rotating plate 14 through a fixing bolt assembly 171. The fixing seat 11 is symmetrically provided with a limiting plate 112 for limiting the eccentric shaft 17. One end of the eccentric shaft 17 passes through the hollow groove at the bottom of the fixing seat 11 and is rotatably connected to the fixing seat 11. The two limiting plates 112 limit the eccentric shaft 17 so that the eccentric shaft 17 can rotate between the bottom of the fixing seat 11 and the limiting plates 112. The other end of the eccentric shaft 17 is fixedly connected to the rotating plate 14 through a fixing bolt assembly 171, and the rotation of the rotating plate 14 drives the eccentric shaft 17 to rotate in the fixing seat 11. This arrangement facilitates the rotating plate 14 to drive the self-locking indexing pin 15 to rotate to fix the claw 12.

[0029] like Figure 4 As shown, an embodiment of the present application also provides a vertical valve pressure testing device, including a base 2 and a fixed plate 3, a plurality of guide rods 4 are arranged between the base 2 and the fixed plate 3, a pressure testing assembly 5 is arranged between adjacent guide rods 4, the pressure testing assembly 5 includes a fixed arch 51, a movable arch 52, a first driving assembly 53 and a second driving assembly 54, the fixed arch 51 is slidably matched with the base 2, the first driving assembly 53 is installed at the bottom end of the base 2, the driving end of the first driving assembly 53 is connected to the fixed arch 51, the two ends of the movable arch 52 are respectively sleeved on the adjacent guide rods 4, the second driving assembly 54 is installed on the fixed plate 3, the driving end of the second driving assembly 54 is connected to the movable arch 52, the movable arch 52 and the fixed arch 51 are respectively provided with balancing cylinders 55, the movable arch 52 is symmetrically provided with a balancing cylinder quick-change structure 1, and the balancing cylinder quick-change structure 1 is used to fix the balancing cylinder 55.

[0030] Specifically, four guide rods 4 are arranged between the base 2 and the fixed plate 3, and three pressure test assemblies 5 are arranged between adjacent guide rods 4. First, two balancing cylinder quick-change structures 1 are symmetrically fixed on the mobile arch 52 through the locking bolt assembly 111, and then the balancing cylinder 55 is initially positioned on the upper mobile arch 52, and the end face of the balancing cylinder 55 is clamped by rotating the claw 12, and then the positioning hole 131 on the positioning plate 13 on one side of the claw 12 is locked and fixed by the self-locking indexing pin, so that the claw 12 clamps the balancing cylinder 55. The balancing cylinder 55 on the fixed arch 51 can also be pressed and fixed by the balancing cylinder quick-change structure 1. Then the valve is placed vertically on the fixed arch 51, and the first drive assembly 53 drives the fixed arch 51 to drive the valve to move horizontally to the bottom of the mobile arch 52, and then the second drive assembly 54 drives the mobile arch 52 to move toward the valve along the guide rod 4, and the valve is clamped between the balancing cylinder 55 of the mobile arch 52 and the fixed arch 51. When the balancing cylinder 55 needs to be reshaped, the self-locking indexing pin only needs to be pulled out of the positioning hole 131 to release the claw 12, and the balancing cylinder 55 can be disassembled and reshaped.

[0031] In the above structure, the balancing cylinder quick-change structure 1 is used to quickly install and quickly disassemble the balancing cylinder 55 on the mobile archway 52. ​​The vertical valve pressure testing device not only improves the installation efficiency, but also greatly saves time cost and improves the working efficiency of the equipment.

[0032] like Figure 4 As shown, in one embodiment, the first driving component 53 of the vertical valve pressure test device is a cylinder. When the cylinder drives the fixed arch 51 to move to the outside, the valve to be tested can be manually fixed on the balance cylinder 55 of the fixed arch 51. When the cylinder drives the fixed arch 51 to drive the balance cylinder 55 to move to the bottom of the mobile arch 52, the valve is clamped in cooperation with the mobile arch 52. This arrangement facilitates driving the fixed arch 51 to move horizontally along the base 2.

[0033] like Figure 4 As shown, in one embodiment, the second driving assembly 54 of the vertical valve pressure test device is a screw-nut transmission mechanism. The screw-nut transmission mechanism includes a motor, a screw and a nut. One end of the screw passes through the fixed plate 3 and is connected to the movable arch 52. The nut is sleeved on the screw and is rotatably connected to the fixed seat 11. The motor drives the nut to rotate, and the nut drives the screw to move up and down, and the screw drives the movable arch 52 to move up and down along the guide rod 4. This setting facilitates driving the movable arch 52 to drive the balance cylinder 55 to press the valve.

[0034] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A balancing cylinder quick-change structure, characterized in that: The invention comprises a fixed seat (11), a clamping claw (12), a positioning plate (13), a rotating plate (14) and a self-locking indexing pin (15); the clamping claw (12) comprises a connecting end (121) and a fixing end (122); the connecting end (121) of the clamping claw (12) is connected to the fixed seat (11) via a rotating shaft (16); the fixing end (122) of the clamping claw (12) is used to fix the balancing cylinder (55); one end of the rotating plate (14) is connected to the fixed seat (11) The eccentric shaft (17) is connected to the connecting end (121) of the claw (12), the self-locking indexing pin (15) is installed on the other end of the rotating plate (14), the positioning plate (13) is connected to the side end of the claw (12), and a positioning hole (131) is provided on the positioning plate (13). The pin head of the self-locking indexing pin (15) extends out of the rotating plate (14) and is positioned and matched with the positioning hole (131) of the positioning plate (13).

2. The quick-change structure of the balancing cylinder according to claim 1 is characterized in that: The fixing seat (11) is provided with a locking bolt assembly (111), and the locking bolt assembly (111) is used to install the fixing seat (11) on an external device.

3. The quick-change structure of the balancing cylinder according to claim 1, characterized in that: Both ends of the rotating shaft (16) are connected to the fixing seat (11) via positioning bolt assemblies (161).

4. The quick-change structure of the balancing cylinder according to claim 1, characterized in that: One end of the eccentric shaft (17) is rotatably connected to the fixing seat (11), and the other end of the eccentric shaft (17) is connected to the rotating plate (14) via a fixing bolt assembly (171). A limiting plate (112) for limiting the eccentric shaft (17) is symmetrically arranged on the fixing seat (11).

5. A vertical valve pressure testing device, comprising the balance cylinder quick-change structure according to any one of claims 1 to 4, characterized in that: The invention comprises a base (2) and a fixed plate (3), a plurality of guide rods (4) are arranged between the base (2) and the fixed plate (3), a pressure test assembly (5) is arranged between adjacent guide rods (4), the pressure test assembly (5) comprises a fixed archway (51), a movable archway (52), a first drive assembly (53) and a second drive assembly (54), the fixed archway (51) is slidably matched with the base (2), the first drive assembly (53) is installed at the bottom end of the base (2), and the drive end of the first drive assembly (53) is connected to the fixed archway (51). The movable archway (52) is connected with a second archway (51), the two ends of the movable archway (52) are respectively sleeved on adjacent guide rods (4), the second drive assembly (54) is installed on the fixed plate (3), the drive end of the second drive assembly (54) is connected with the movable archway (52), the movable archway (52) and the fixed archway (51) are respectively provided with balancing cylinders (55) opposite to each other, the movable archway (52) is symmetrically provided with a balancing cylinder quick-change structure (1), and the balancing cylinder quick-change structure (1) is used to fix the balancing cylinder (55).

6. The vertical valve pressure testing device according to claim 5, characterized in that: The first driving component (53) is a cylinder.

7. The vertical valve pressure testing device according to claim 5, characterized in that: The second driving assembly (54) is a screw-nut transmission mechanism.

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