Clamping and positioning device for valve installation

Abstract

The invention relates to the technical field of valve installation, and discloses a clamping and positioning device for valve installation, which comprises a valve body, a base and a positioning frame, a clamping mechanism is arranged on the positioning frame, and a lifting mechanism is arranged on the base. An air cylinder is started to push a second toothed plate to move along a sliding rail, when the second toothed plate moves, a second gear meshed with the second toothed plate is driven to rotate, so that a rotating ring rotates on a positioning frame under the meshing action of the second gear and an outer tooth groove and the limiting action of a limiting ring and a limiting groove, and when the rotating ring rotates, a first gear is driven to rotate through an inner tooth groove; the first gear drives a first toothed plate engaged with the first gear to move, and a limiting block on the first toothed plate slides in a first limiting frame and a second limiting frame, so that the first toothed plate can drive a clamping piece to move, and the device can clamp and position valves with different diameters; and the multiple clamping pieces are arranged, so that the clamping contact area can be increased, and the stable clamping performance of the valve is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of valve installation, in particular to a clamping and positioning device for valve installation. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveyed medium. According to their functions, they can be divided into shut-off valves, check valves, and regulating valves. Valves can be used to control the flow of various types of fluids, including air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactive media.

[0003] The China Patent Network discloses a positioning device for facilitating valve installation, with publication number CN217860837U. The device comprises a chassis, a rotating mechanism fixedly mounted inside the chassis, a support rod fixedly mounted on the top of the rotating mechanism, a connecting frame fixedly mounted on the top of the support rod, an electric push rod fixedly mounted on the inner wall of the connecting frame, and a positioning frame provided at the output end of the electric push rod. The valve is placed in the first clamping groove, and the first motor is operated to cause the screw rod to move the clamping plate to clamp the valve. The electric push rod is operated to cause the positioning frame to move the valve upward, making it convenient to adjust the position according to the valve installation position, providing convenience for the operator to install the valve, thereby improving work efficiency. The storage cabinet is installed to increase the storage space of the device, facilitate the placement and retrieval of installed spare valves, and thus improve the practicality of the device.

[0004] However, since the shape and size of the clamping plate are fixed, it is difficult for the clamping plate to fit tightly with valves of different sizes, and it cannot be used for valves of different diameters. It is also impossible to stably clamp the valve, which affects the installation effect of the valve. Therefore, it is necessary to provide a clamping and positioning device for valve installation. Summary of the Invention

[0005] The object of the present invention is to provide a clamping and positioning device for valve installation to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a clamping and positioning device for valve installation, comprising a valve body, a base and a positioning frame, the positioning frame is provided with a clamping mechanism, and the base is provided with a lifting mechanism; the clamping mechanism comprises a rotating ring, one side of the rotating ring is fixedly connected to a limiting ring, a limiting groove is provided on the positioning frame, the limiting ring is rotatably connected to the limiting groove, an inner tooth groove is provided on the inner side of the rotating ring, a first rotating rod is rotatably provided on the positioning frame, a first gear meshing with the inner tooth groove is fixedly provided on the first rotating rod, a first tooth plate is meshed on the first gear, and the first tooth plate A clamping piece is fixedly provided at one end, a limiting block is fixedly provided on the first tooth plate, a first limiting frame and a second limiting frame are fixedly installed on the positioning frame, and the limiting block is slidably connected to the first limiting frame and the second limiting frame; a second rotating rod is rotatably provided on the positioning frame, a second gear is fixedly sleeved on the second rotating rod, an outer tooth groove engaged with the second gear is provided on the outer side of the rotating ring, a mounting groove is provided on the positioning frame, and a cylinder is installed in the mounting groove, a second tooth plate is fixedly connected to the output rod of the cylinder, the second tooth plate is engaged with the second gear, and a slide rail slidably connected to the second tooth plate is fixedly installed on the positioning frame.

[0007] Preferably, the clamping member comprises a sleeve shell, a clamping block is slidably arranged in the sleeve shell, a rubber pad is adhered to the clamping surface of the clamping block, and the rubber pad is provided with anti-slip lines.

[0008] Preferably, one side of the clamping block is fixedly connected to a sliding rod, one end of the sliding rod slides through the sleeve and is fixedly connected to a limiting plate, and a spring is sleeved on the sliding rod and arranged between the sleeve and the clamping block.

[0009] Preferably, the lifting mechanism includes a lifting plate fixedly arranged at the bottom of the positioning frame, a movable groove is opened on the base, two bidirectional screw rods are rotatably arranged in the movable groove, one end of the two bidirectional screw rods rotates through the movable groove and is transmitted by a synchronous wheel transmission assembly.

[0010] Preferably, a support frame is fixedly mounted on one end of the base, a motor is mounted on the support frame, and an output shaft of the motor is fixedly connected to a bidirectional screw rod at the front end.

[0011] Preferably, two relatively arranged moving blocks are threadedly connected to the bidirectional screw rod, a fixed block is fixedly provided at the bottom of the lifting plate, and a hinged rod is hingedly provided between the moving block and the fixed block.

[0012] Preferably, a limit rod is fixedly provided above the bidirectional screw rod in the movable groove, and the moving block is slidably connected to the limit rod.

[0013] Preferably, a positioning rod is fixedly provided on the bottom of the lifting plate, a positioning groove is provided on the base, and the positioning rod is slidably connected to the positioning groove.

[0014] Preferably, four self-locking universal wheels are installed at the bottom of the base, and a push-pull handle is fixedly provided at one end of the base.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1) The clamping and positioning device for valve installation is configured to drive the second tooth plate to move laterally along the slide rail by starting the cylinder. When the second tooth plate moves, it drives the second gear meshed with it to rotate, so that the rotating ring rotates on the positioning frame under the meshing action of the second gear and the outer tooth groove and the limiting action of the limit ring and the limit groove. When the rotating ring rotates, it drives the first gear to rotate through the inner tooth groove, and the first gear drives the first tooth plate meshed with it to move. The limiting block on the first tooth plate slides in the first limiting frame and the second limiting frame, so that the first tooth plate can drive the clamping member to move, so that the device can clamp and position valves of different diameters, and the provision of multiple clamping members can increase the clamping contact area and improve the stable clamping of the valve.

[0017] 2) The valve installation clamping and positioning device, through the arrangement of the housing, clamping block, slide rod and spring, enables the clamping block to automatically adjust the clamping force according to the shape and rigidity of the valve body, ensuring moderate clamping force, avoiding over-clamping or under-clamping, and facilitating adaptation to valve bodies of different sizes, thereby increasing the versatility and flexibility of the device. At the same time, a rubber pad with anti-slip patterns is arranged on the clamping surface of the clamping block, which can significantly improve the stability, reliability and safety of the valve body clamping, while protecting the surface quality of the valve body.

[0018] 3) The clamping and positioning device for valve installation starts the motor to make the two bidirectional screws rotate synchronously under the transmission action of the synchronous wheel transmission assembly, so that the two moving blocks threadedly connected to the bidirectional screws can move toward each other under the guidance of the limit rod. When the moving blocks move, they can drive the hinged rod to rotate, so that the fixed block is pushed upward or pulled downward by the hinged rod under the hinged action, so that the lifting plate can drive the valve body clamped on the positioning frame to rise and fall, and at the same time, the positioning rod at the bottom of the lifting plate can slide along the positioning groove to improve the stability of the lifting plate during lifting and moving, so as to facilitate flexible adjustment according to the installation height of the valve body and improve the valve installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a clamping and positioning device for valve installation according to an embodiment of the present invention;

[0020] Figure 2Schematic diagram of the three-dimensional structure of the clamping mechanism in an embodiment of the present invention;

[0021] Figure 3 Schematic diagram of the three-dimensional structure of the positioning frame and the rotating ring in an embodiment of the present invention;

[0022] Figure 4 In the embodiment of the present invention Figure 3 A magnified view of the structure at point A;

[0023] Figure 5 is a schematic cross-sectional structural diagram of a clamping member in an embodiment of the present invention;

[0024] Figure 6 is a schematic cross-sectional structural diagram of a base in an embodiment of the present invention;

[0025] Figure 7 A top view of the three-dimensional structure of the base in an embodiment of the present invention;

[0026] Figure 8 Schematic diagram of the three-dimensional structure of the lifting mechanism in an embodiment of the present invention.

[0027] In the figure: 1. Valve body; 2. Base; 3. Positioning bracket; 4. Self-locking universal wheel; 5. Push-pull handle; 6. Clamping mechanism; 61. Rotating ring; 62. Limiting ring; 63. Limiting groove; 64. Internal tooth groove; 65. External tooth groove; 66. First rotating rod; 67. First gear; 68. First tooth plate;

[0028] 69. Clamping member; 691. Housing; 692. Clamping block; 693. Rubber pad; 694. Anti-slip pattern; 695. Sliding rod; 696. Spring; 697. Limiting piece;

[0029] 610, limit block; 611, first limit frame; 612, second limit frame; 613, mounting slot; 614, cylinder; 615, second gear plate; 616, slide rail; 617, second rotating rod; 618, second gear;

[0030] 7. Lifting mechanism; 71. Lifting plate; 72. Movable slot; 73. Bidirectional screw rod; 74. Support frame; 75. Motor; 76. Synchronous wheel transmission assembly; 77. Limit rod; 78. Moving block; 79. Fixed block; 710. Articulated rod; 711. Positioning rod; 712. Positioning slot. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1

[0033] Combine Figures 1-8 The present invention provides a technical solution: a clamping and positioning device for valve installation, comprising a valve body 1, a base 2 and a positioning frame 3, four self-locking universal wheels 4 are installed at the bottom of the base 2, a push-pull handle 5 is fixedly provided at one end of the base 2, a clamping mechanism 6 is provided on the positioning frame 3, and a lifting mechanism 7 is provided on the base 2.

[0034] See Figure 2-Figure 5 , it is further obtained that the clamping mechanism 6 includes a rotating ring 61, one side of the rotating ring 61 is fixedly connected to a limit ring 62, a limit groove 63 is provided on the positioning frame 3, the limit ring 62 is rotatably connected to the limit groove 63, an inner tooth groove 64 is provided on the inner side of the rotating ring 61, a first rotating rod 66 is rotatably provided on the positioning frame 3, a first gear 67 meshing with the inner tooth groove 64 is fixedly provided on the first rotating rod 66, a first gear 67 meshing with the inner tooth groove 64 is meshed with a first tooth plate 68, a clamping member 69 is fixedly provided at one end of the first tooth plate 68, a limit block 610 is fixedly provided on the first tooth plate 68, and a first limit frame 611 is fixedly installed on the positioning frame 3 And the second limit frame 612, the limit block 610 is slidingly connected to the first limit frame 611 and the second limit frame 612; a second rotating rod 617 is rotatably provided on the positioning frame 3, and a second gear 618 is fixedly sleeved on the second rotating rod 617. An outer tooth groove 65 engaged with the second gear 618 is provided on the outer side of the rotating ring 61, and a mounting groove 613 is provided on the positioning frame 3. A cylinder 614 is installed in the mounting groove 613, and a second tooth plate 615 is fixedly connected to the output rod of the cylinder 614. The second tooth plate 615 is engaged with the second gear 618, and a slide rail 616 slidingly connected to the second tooth plate 615 is fixedly installed on the positioning frame 3.

[0035] Specifically, by starting the cylinder 614, the second tooth plate 615 is pushed to move laterally along the slide rail 616. When the second tooth plate 615 moves, it drives the second gear 618 meshing with it to rotate, so that the rotating ring 61 rotates on the positioning frame 3 under the meshing action of the second gear 618 and the outer tooth groove 65 and the limiting action of the limit ring 62 and the limit groove 63. When the rotating ring 61 rotates, it drives the first gear 67 to rotate through the inner tooth groove 64, and the first gear 67 drives the first tooth plate 68 meshing with it to move. The limit block 610 on the first tooth plate 68 slides in the first limit frame 611 and the second limit frame 612, so that the first tooth plate 68 can drive the clamping member 69 to move, so that the device can clamp and position valves of different diameters, and the provision of multiple clamping members 69 can increase the clamping contact area and improve the stable clamping of the valve.

[0036] See Figure 5 , it is further obtained that the clamping member 69 includes a sleeve 691, a clamping block 692 is slidably arranged in the sleeve 691, a rubber pad 693 is adhered to the clamping surface of the clamping block 692, and the rubber pad 693 is provided with an anti-slip groove 694, and a sliding rod 695 is fixedly connected to one side of the clamping block 692, one end of the sliding rod 695 slides through the sleeve 691 and is fixedly connected to the limiting plate 697, and a spring 696 is sleeved on the sliding rod 695 and arranged between the sleeve 691 and the clamping block 692.

[0037] Specifically, through the arrangement of the sleeve 691, the clamping block 692, the sliding rod 695 and the spring 696, the clamping block 692 can automatically adjust the clamping force according to the shape and rigidity of the valve body 1, ensuring that the clamping force is moderate, avoiding excessive clamping or insufficient clamping, and facilitating adaptation to valve bodies 1 of different sizes, thereby increasing the versatility and flexibility of the device. At the same time, a rubber pad 693 with anti-slip grooves 694 is arranged on the clamping surface of the clamping block 692, which can significantly improve the stability, reliability and safety of clamping the valve body 1, while protecting the surface quality of the valve body 1.

[0038] See Figure 6-Figure 8The lifting mechanism 7 includes a lifting plate 71 fixedly arranged at the bottom of the positioning frame 3, a movable slot 72 is provided on the base 2, and two bidirectional screw rods 73 are rotatably provided in the movable slot 72. One end of the two bidirectional screw rods 73 rotates through the movable slot 72 and is driven by a synchronous wheel transmission assembly 76. A support frame 74 is fixedly installed at one end of the base 2, and a motor 75 is installed on the support frame 74. The output shaft of the motor 75 is fixedly connected to the bidirectional screw rod 73 at the front end, and two relatively arranged moving blocks 78 are threadedly connected on the bidirectional screw rod 73. A fixed block 79 is fixedly provided at the bottom of the lifting plate 71, and a hinged rod 710 is hingedly provided between the moving block 78 and the fixed block 79. A limit rod 77 is fixedly provided above the bidirectional screw rod 73 in the movable slot 72, and the moving block 78 is slidably connected to the limit rod 77. A positioning rod 711 is fixedly provided at the bottom of the lifting plate 71, and a positioning slot 712 is provided on the base 2. The positioning rod 711 is slidably connected to the positioning slot 712.

[0039] Specifically, by starting the motor 75, the two bidirectional screw rods 73 rotate synchronously under the transmission action of the synchronous wheel transmission assembly 76, so that the two moving blocks 78 threadedly connected to the bidirectional screw rods 73 can move toward each other under the guidance of the limit rod 77. When the moving block 78 moves, it can drive the hinge rod 710 to rotate, so that the fixed block 79 is pushed upward or pulled downward by the hinge rod 710 under the hinge action, so that the lifting plate 71 can drive the valve body 1 clamped on the positioning frame 3 to rise and fall. At the same time, the positioning rod 711 at the bottom of the lifting plate 71 can slide along the positioning groove 712 to improve the stability of the lifting plate 71 during lifting and moving, thereby facilitating flexible adjustment according to the installation height of the valve body 1 and improving the valve installation efficiency.

[0040] During actual operation, the valve body 1 to be installed is placed in the positioning frame 3, and then the cylinder 614 is started to push the second gear plate 615 to move horizontally along the slide rail 616. When the second gear plate 615 moves, it drives the second gear 618 meshing with it to rotate, and the second gear 618 meshes with the outer tooth groove 65 of the rotating ring 61, so that the rotating ring 61 rotates on the positioning frame 3 under the limiting action of the limiting ring 62 and the limiting groove 63. When the rotating ring 61 rotates, the inner tooth groove 64 meshes with the first gear 67 and drives the first gear 67 to rotate. The rotation of the first gear 67 drives the first gear plate 68 meshed with it to move. At this time, the limiting block 610 on the first gear plate 68 slides in the first limiting frame 611 and the second limiting frame 612, providing support and guidance for the first gear plate 68, thereby improving the stability of the first gear plate 68 when it moves, and the first gear plate 68 drives the clamping member 69 to clamp and fix the valve body 1;

[0041] When the clamping member 69 clamps the valve body 1, the clamping block 692 slides in the sleeve 691 and squeezes the spring 696 on the slide rod 695, so that the clamping member 69 can flexibly clamp the valve body 1. The setting of the spring 696 enables the clamping block 692 to automatically adjust the clamping force according to the shape and rigidity of the valve body 1, ensuring that the clamping force is moderate and avoiding excessive clamping or insufficient clamping. At the same time, a rubber pad 693 with anti-slip grooves 694 is provided on the clamping surface of the clamping block 692, which can significantly improve the stability, reliability and safety of clamping the valve body 1, while protecting the surface quality of the valve body 1; it is easy to adapt to valve bodies 1 of different sizes, and increases the versatility and flexibility of the device.

[0042] The device is moved and locked to the installation position of the valve body 1 through the push-pull handle 5 and the self-locking universal wheel 4. Then, the two bidirectional screw rods 73 are rotated synchronously by starting the motor 75 under the transmission action of the synchronous wheel transmission assembly 76, so that the two moving blocks 78 threadedly connected to the bidirectional screw rod 73 can move toward each other under the guidance of the limit rod 77. When the moving block 78 moves, it can drive the hinge rod 710 to rotate, so that the fixed block 79 is pushed upward or pulled downward by the hinge rod 710 under the hinge action, so that the lifting plate 71 can drive the valve body 1 clamped on the positioning frame 3 to rise and fall. At the same time, the positioning rod 711 at the bottom of the lifting plate 71 can slide along the positioning groove 712 to improve the stability of the lifting plate 71 during lifting and moving, thereby facilitating flexible adjustment according to the installation height of the valve body 1 and improving the valve installation efficiency.

[0043] Other parts of the present invention not described in detail belong to the prior art and will not be described here in detail.

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A clamping and positioning device for valve installation, comprising a valve body (1), a base (2) and a positioning frame (3), characterized in that: The positioning frame (3) is provided with a clamping mechanism (6), and the base (2) is provided with a lifting mechanism (7); The clamping mechanism (6) comprises a rotating ring (61), one side of the rotating ring (61) is fixedly connected to a limiting ring (62), a limiting groove (63) is provided on the positioning frame (3), the limiting ring (62) is rotatably connected to the limiting groove (63), an inner tooth groove (64) is provided on the inner side of the rotating ring (61), a first rotating rod (66) is rotatably provided on the positioning frame (3), and a fixed sleeve is provided on the first rotating rod (66) that meshes with the inner tooth groove (64). A first gear (67) is provided on the first gear (67), a first tooth plate (68) is meshed with the first gear (67), a clamping member (69) is fixedly provided at one end of the first tooth plate (68), a limiting block (610) is fixedly provided on the first tooth plate (68), a first limiting frame (611) and a second limiting frame (612) are fixedly installed on the positioning frame (3), and the limiting block (610) is slidably connected to the first limiting frame (611) and the second limiting frame (612); A second rotating rod (617) is rotatably provided on the positioning frame (3), a second gear (618) is fixedly sleeved on the second rotating rod (617), an outer tooth groove (65) meshing with the second gear (618) is provided on the outer side of the rotating ring (61), a mounting groove (613) is provided on the positioning frame (3), a cylinder (614) is installed in the mounting groove (613), a second tooth plate (615) is fixedly connected to the output rod of the cylinder (614), the second tooth plate (615) is meshed with the second gear (618), and a slide rail (616) slidably connected to the second tooth plate (615) is fixedly installed on the positioning frame (3).

2. A valve installation clamping and positioning device according to claim 1, characterized in that: The clamping member (69) comprises a sleeve (691), a clamping block (692) is slidably arranged in the sleeve (691), a rubber pad (693) is adhered to the clamping surface of the clamping block (692), and an anti-slip pattern (694) is provided on the rubber pad (693).

3. A valve installation clamping and positioning device according to claim 2, characterized in that: One side of the clamping block (692) is fixedly connected to a slide rod (695), one end of the slide rod (695) slides through the housing (691) and is fixedly connected to a limiting plate (697), and a spring (696) is sleeved on the slide rod (695) and arranged between the housing (691) and the clamping block (692).

4. A valve installation clamping and positioning device according to claim 1, characterized in that: The lifting mechanism (7) comprises a lifting plate (71) fixedly arranged at the bottom of the positioning frame (3); a movable groove (72) is provided on the base (2); two bidirectional screw rods (73) are rotatably arranged in the movable groove (72); one end of the two bidirectional screw rods (73) rotatably passes through the movable groove (72) and is driven by a synchronous wheel transmission assembly (76).

5. A valve installation clamping and positioning device according to claim 4, characterized in that: A support frame (74) is fixedly mounted on one end of the base (2), a motor (75) is mounted on the support frame (74), and an output shaft of the motor (75) is fixedly connected to a bidirectional screw rod (73) at the front end.

6. A valve installation clamping and positioning device according to claim 4, characterized in that: The bidirectional screw rod (73) is threadedly connected to two oppositely arranged moving blocks (78); a fixed block (79) is fixedly arranged at the bottom of the lifting plate (71); and a hinge rod (710) is hingedly arranged between the moving block (78) and the fixed block (79).

7. A valve installation clamping and positioning device according to claim 6, characterized in that: A limiting rod (77) is fixedly provided above the bidirectional screw rod (73) in the movable groove (72), and the moving block (78) is slidably connected to the limiting rod (77).

8. A valve installation clamping and positioning device according to claim 4, characterized in that: A positioning rod (711) is fixedly provided at the bottom of the lifting plate (71), a positioning groove (712) is provided on the base (2), and the positioning rod (711) is slidably connected to the positioning groove (712).

9. The valve installation clamping and positioning device according to claim 1, characterized in that: Four self-locking universal wheels (4) are installed at the bottom of the base (2), and a push-pull handle (5) is fixedly provided at one end of the base (2).

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