Quick valve clamping mechanism of valve pressure testing machine

Abstract

The utility model relates to the technical field of clamping mechanisms, in particular to a quick valve clamping mechanism of a valve pressure testing machine. The valve rapid clamping mechanism of the valve pressure tester comprises a mounting plate, the mounting plate is provided with a plurality of groups of clamping assemblies for clamping a valve, and the mounting plate is provided with a cylinder for driving the clamping assemblies; the clamping assembly comprises a supporting plate, the supporting plate is movably arranged on the mounting plate, an inserting groove is formed in the supporting plate, a plurality of clamping plates in sliding connection are inserted into the inserting groove, and the specifications of the outer walls of the clamping plates are different. According to the valve rapid clamping mechanism of the valve pressure testing machine, in the later use process, the specification of the clamping plate can be flexibly disassembled and replaced according to needs, so that the clamping plate can clamp and fix the valve in the mode that the clamping plate is more attached to the outer wall of the valve, and meanwhile the valve can be rapidly clamped and fixed in the mode that the clamping plate can be rapidly disassembled. And the application range of the device can be widened.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping mechanisms, in particular to a valve quick clamping mechanism of a valve pressure testing machine. Background Art

[0002] The valve pressure tester integrates electromechanical, hydraulic, pressure testing, and liquid medium storage and circulation. It has the characteristics of complete functions, stable performance, and a high degree of automation. It is widely used for various performance tests such as strength, sealing, and leakage of straight-through flanges and threaded connections of various high, medium, and low pressure valves with a nominal diameter of DNl5-1000mm. The valve quick clamping mechanism is a key part of it, which is used to clamp valves quickly and accurately.

[0003] The existing Chinese patent publication number CN221078278U is a valve quick clamping mechanism for a valve pressure testing machine. It can be seen from the contents recorded in its specification that the clamping mechanism in the device is fixedly installed and inconvenient to replace. Since the external curvature of valves of different specifications is different, this fixed structure, when used, reduces the direct fit with the valve when clamping valves of different specifications, and is prone to unstable clamping due to insufficient fitting surface.

[0004] Therefore, it is necessary to provide a new valve quick clamping mechanism for a valve pressure testing machine to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a valve quick clamping mechanism for a valve pressure testing machine.

[0006] The valve quick clamping mechanism of the valve pressure testing machine provided by the utility model comprises: a mounting plate, on which are provided a plurality of clamping assemblies for clamping the valve, and on which are provided a cylinder for driving the clamping assemblies;

[0007] The clamping assembly includes a support plate, the support plate is movably arranged on the mounting plate, a slot is provided on the support plate, a slidably connected clamping plate is inserted into the slot, and the clamping plate is provided in plurality and the outer wall specifications of each clamping plate are different;

[0008] The support plate is provided with a through hole inside, and limiting holes are provided at positions opposite to the through hole inside the clamping plate, a fixedly connected fixing frame is installed on the outer wall of the support plate, a slidably connected limiting frame is inserted into the fixing frame, and the end of the limiting frame is slidably inserted into the through hole and the limiting hole, a fixedly connected limiting spring is provided between the limiting frame and the fixing frame, one end of the limiting spring is fixedly connected to the limiting frame, and the other end of the limiting spring is fixedly connected to the fixing frame;

[0009] Furthermore, the clamping plate is provided with an interlayer component for buffering the clamping force.

[0010] Preferably, the sandwich assembly includes a mounting frame, the mounting frame is inserted into the clamping plate, and a fixedly connected rubber sheet is provided inside the mounting frame.

[0011] Preferably, two groups of staggered sliding grooves are provided on the top of the mounting plate, and two groups of staggered support blocks are fixedly installed on the top of the mounting plate, and each group of support blocks is provided with two and symmetrically distributed.

[0012] Preferably, the outer wall of the support block is fixedly connected to one end of the cylinder, the other end of the cylinder is fixedly connected to the outer wall of the support plate, and the bottom of the support plate is abutted against and slidably connected to the inner wall of the slide groove.

[0013] Preferably, mounting grooves are provided on both side walls of the clamping plate, and the mounting brackets are inserted into the mounting grooves and fixedly connected by bolts.

[0014] Compared with the related art, the valve quick clamping mechanism of the valve pressure testing machine provided by the present invention has the following beneficial effects:

[0015] 1. The utility model installs the clamping plate in the clamping assembly by inserting it. During subsequent use, the specifications of the clamping plate can be flexibly disassembled and replaced as needed, so that the clamping plate can clamp and fix the valve in a way that is more closely fitted to the outer wall of the valve. At the same time, the quick disassembly method can also improve the scope of application of the device.

[0016] 2. The utility model arranges multiple groups of symmetrically distributed clamping components. When in use, the multiple clamping components can achieve multi-faceted clamping of the outer side of the valve, thereby completing the clamping of the valve and helping to improve the stability of the valve clamping.

[0017] 3. Through the provision of the sandwich assembly, the present invention allows, during use, when the clamping plate moves toward the valve, driving the rubber sheet to abut against the outer wall of the valve, the rubber sheet can increase the friction between the clamping plate and the valve while also preventing the hard clamping plate from directly abutting against the outer wall of the valve, thereby reducing the probability of damage to the outer wall of the valve.

[0018] 4. The utility model is installed by inserting the rubber sheet. When the rubber sheet is damaged due to the squeezing force during long-term use, it is also convenient for the staff to replace the rubber sheet independently. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A structural diagram of a preferred embodiment of a valve quick clamping mechanism of a valve pressure testing machine provided by the utility model;

[0020] Figure 2 for Figure 1 The schematic diagram of the orientation structure of the cylinder, clamping assembly and sandwich assembly shown;

[0021] Figure 3 for Figure 2 The schematic diagram of the structure of the cylinder and the clamping assembly shown;

[0022] Figure 4 for Figure 2 The schematic diagram of the orientation structure of the clamping plate and the sandwich assembly shown;

[0023] Figure 5 for Figure 1 Schematic diagram of the structure of the mounting plate shown.

[0024] Numbers in the figure: 1. Mounting plate; 11. Slide groove; 12. Support block; 2. Cylinder; 3. Clamping assembly; 31. Support plate; 311. Slot; 312. Through hole; 32. Clamping plate; 321. Mounting groove; 322. Limiting hole; 4. Interlayer assembly; 41. Mounting frame; 42. Rubber sheet; 5. Fixing frame; 51. Limiting frame; 52. Limiting spring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0027] See also Figures 1 to 5 The embodiment of the present invention provides a valve quick clamping mechanism for a valve pressure testing machine, and the valve quick clamping mechanism for the valve pressure testing machine includes: a mounting plate 1.

[0028] In the embodiments of the present invention, please refer to Figures 1 to 5, the mounting plate 1 is provided with multiple groups of clamping assemblies 3 for clamping the valve; the clamping assembly 3 includes a support plate 31, the support plate 31 is movably arranged on the mounting plate 1, a slot 311 is provided on the support plate 31, a slidingly connected clamping plate 32 is inserted into the interior of the slot 311, and a plurality of clamping plates 32 are provided, and the outer wall specifications of each clamping plate 32 are different; a through hole 312 is provided inside the support plate 31, and a limiting hole 322 is provided at the position opposite to the through hole 312 inside the clamping plate 32, and a fixed A fixed frame 5 is fixedly connected, and a slidingly connected limit frame 51 is inserted inside the fixing frame 5. The end of the limit frame 51 is slidably inserted in the through hole 312 and the limit hole 322. A fixedly connected limit spring 52 is arranged between the limit frame 51 and the fixing frame 5. One end of the limit spring 52 is fixedly connected to the limit frame 51, and the other end of the limit spring 52 is fixedly connected to the fixing frame 5. Mounting grooves 321 are provided on both side walls of the clamping plate 32, and the mounting frame 41 is inserted in the mounting groove 321 and fixedly connected by bolts.

[0029] It should be noted that: by setting up multiple clamping plates 32 of different specifications and inserting and installing the clamping plates 32, the specifications of the clamping plates 32 can be flexibly disassembled and replaced as needed during subsequent use, so that the clamping plates 32 can clamp and fix the valve in a manner that is more closely fitted to the outer wall of the valve. At the same time, the quick-disassembly method can also improve the applicability of the device, and multiple groups of symmetrically distributed clamping components 3 can achieve multi-faceted clamping of the outer side of the valve when in use, thereby completing the clamping of the valve and helping to improve the stability of the valve clamping.

[0030] It should also be noted that by inserting the mounting bracket 41 into the mounting groove 321, during subsequent use, when the rubber sheet 42 is damaged due to squeezing during use, the bolts can be unscrewed to release the fixation between the mounting bracket 41 and the mounting groove 321, thereby achieving the removal of the rubber sheet 42, so that the damaged rubber sheet 42 can be replaced later.

[0031] And through the installation of the limit spring 52 and the limit frame 51, in a natural state, the limit spring 52 can drive the limit frame 51 through its own force, so that the limit frame 51 can pass through the through hole 312 and be inserted into the limit hole 322, thereby limiting the vertical sliding trajectory of the clamping plate 32. With this insertion limit method, when the clamping plate 32 needs to be replaced later, it is only necessary to pull the limit frame 51 to move the limit frame 51 out of the limit hole 322 to release the limit on the clamping plate 32, and then lift the clamping plate 32 to disassemble the clamping plate 32, thereby making it more convenient for the staff to disassemble and replace the clamping plate 32.

[0032] In the embodiments of the present invention, please refer to Figures 1 to 5 The clamping plate 32 is provided with a sandwich component 4 for buffering the clamping force. The sandwich component 4 includes a mounting frame 41. The mounting frame 41 is inserted into the clamping plate 32, and a fixedly connected rubber sheet 42 is provided in the mounting frame 41.

[0033] It should be noted that: through the setting of the interlayer assembly 4, during use, when the clamping plate 32 moves toward the valve and drives the rubber sheet 42 to abut against the outer wall of the valve, the rubber sheet 42 can increase the friction between the clamping plate 32 and the valve while avoiding the hard clamping plate 32 directly abutting against the outer wall of the valve, thereby reducing the probability of damage to the outer wall of the valve.

[0034] In the embodiments of the present invention, please refer to Figures 1 to 5 A cylinder 2 for driving the clamping assembly 3 is provided on the mounting plate 1. Two groups of staggered slide grooves 11 are provided on the top of the mounting plate 1. Two groups of staggered support blocks 12 are fixedly installed on the top of the mounting plate 1, and each group of support blocks 12 is provided with two and symmetrically distributed. The outer wall of the support block 12 is fixedly connected to one end of the cylinder 2, and the other end of the cylinder 2 is fixedly connected to the outer wall of the support plate 31, and the bottom of the support plate 31 is against and slidably connected to the inner wall of the slide groove 11.

[0035] It should be noted that: through the sliding connection between the slide groove 11 and the support plate 31, when in use, when the cylinder 2 drives the support plate 31 to move, the slide groove 11 can guide the movement of the support plate 31, so that the support plate 31 can drive the clamping plate 32 on the outer wall to move stably.

[0036] The working principle of the valve quick clamping mechanism of the valve pressure testing machine provided by the utility model is as follows:

[0037] When using the present device, the mounting plate 1 in the present device can be fixedly mounted on the support plate in the document with publication number CN221078278U, and then, according to the specifications of the tested valve, a clamping plate 32 that matches the specifications of its outer wall is selected, and the clamping plate 32 is inserted into the slot 311 in the support plate 31. After the insertion of the clamping plate 32 is completed, the pulling on the limiting frame 51 can be released. At this time, the limiting frame 51 can pass through the through hole 312 under the action of the limiting spring 52 and be inserted into the limiting hole 322 in the clamping plate 32, thereby realizing the vertical limitation of the clamping plate 32, so that the clamping plate 32 can be stably installed in the support plate 31;

[0038] After the installation of the clamping plate 32 is completed, the required test valve can be placed on the mounting plate 1, and then the cylinder 2 can be controlled to work. The working cylinder 2 can drive the support plate 31 at the end, so that the support plate 31 can slide along the slide groove 11 in the mounting plate 1. During the movement of the support plate 31, the clamping plate 32 on the outer wall and the interlayer assembly 4 can be driven to move synchronously;

[0039] When the outer wall of the rubber sheet 42 in the sandwich assembly 4 abuts against the outer wall of the valve, as the cylinder 2 continues to work, the rubber sheet 42 subjected to the extrusion force can be deformed and abut against the outer wall of the clamping plate 32. In this process, the rubber sheet 42 not only increases the friction between the clamping plate 32 and the valve, but also avoids the probability of the outer wall of the valve being broken due to the direct abutment between the hard clamping plate 32 and the hard valve, thereby protecting the outer wall of the valve.

[0040] At the same time, by installing multiple groups of symmetrically distributed clamping components 3, when in use, multiple groups of clamping components 3 can achieve comprehensive clamping of the valve exterior at multiple angles, thereby helping to improve the stability of the clamping components 3 on the valve, thereby enabling the pressure test machine to perform stable pressure application work in the later stage.

[0041] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0042] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A valve quick clamping mechanism for a valve pressure testing machine, characterized in that: include: A mounting plate (1), wherein the mounting plate (1) is provided with a plurality of clamping assemblies (3) for clamping the valves, and the mounting plate (1) is provided with a cylinder (2) for driving the clamping assemblies (3); The clamping assembly (3) comprises a support plate (31), the support plate (31) being movably arranged on the mounting plate (1), a slot (311) being provided on the support plate (31), a slidably connected clamping plate (32) being inserted into the interior of the slot (311), a plurality of the clamping plates (32) being provided, and the outer wall specifications of each clamping plate (32) being different; A through hole (312) is provided inside the support plate (31), and a limiting hole (322) is provided inside the clamping plate (32) at a position opposite to the through hole (312). A fixedly connected fixing frame (5) is installed on the outer wall of the support plate (31), and a slidably connected limiting frame (51) is inserted inside the fixing frame (5). The end of the limiting frame (51) is slidably inserted in the through hole (312) and the limiting hole (322). A fixedly connected limiting spring (52) is provided between the limiting frame (51) and the fixing frame (5), and one end of the limiting spring (52) is fixedly connected to the limiting frame (51), and the other end of the limiting spring (52) is fixedly connected to the fixing frame (5); Furthermore, a sandwich component (4) for buffering the clamping force is provided on the clamping plate (32).

2. The valve quick clamping mechanism of the valve pressure testing machine according to claim 1, characterized in that: The sandwich assembly (4) comprises a mounting frame (41), the mounting frame (41) is inserted into the clamping plate (32), and a fixedly connected rubber sheet (42) is provided in the mounting frame (41).

3. The valve quick clamping mechanism of the valve pressure testing machine according to claim 1, characterized in that: Two groups of staggered sliding grooves (11) are provided on the top of the mounting plate (1), and two groups of staggered supporting blocks (12) are fixedly installed on the top of the mounting plate (1), and each group of supporting blocks (12) is provided with two and symmetrically distributed.

4. The valve quick clamping mechanism of the valve pressure testing machine according to claim 3, characterized in that: The outer wall of the support block (12) is fixedly connected to one end of the cylinder (2), the other end of the cylinder (2) is fixedly connected to the outer wall of the support plate (31), and the bottom of the support plate (31) is abutted against and slidably connected to the inner wall of the slide groove (11).

5. The valve quick clamping mechanism of the valve pressure testing machine according to claim 2, characterized in that: Both side walls of the clamping plate (32) are provided with mounting grooves (321), and the mounting frame (41) is inserted into the mounting grooves (321) and fixedly connected by bolts.

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