An integral fixture with an inner flow channel

Abstract

The present invention relates to an integral fixture containing an internal flow channel. The present invention includes a base plate having a base plate flow channel structure and an oil inlet and an oil outlet connected to the base plate flow channel structure; a valve block connected to the base plate having a valve block flow channel structure and a plurality of valve block side surfaces, wherein the plurality of valve block side surfaces are connected in pairs through the valve block flow channel structure; at least one stopper connected to the base plate having a stopper flow channel structure and a plurality of stopper side surfaces, wherein the plurality of stopper side surfaces are connected in pairs through the stopper flow channel structure; wherein a test piece installation area is formed between the base plate, the stopper and the valve block. The present invention provides an integral fixture containing an internal flow channel, wherein the flow channel is processed and corresponds to the pipeline, which can effectively avoid resonance and greatly reduce the difficulty of pipeline distribution design. At the same time, the integral fixture has a neat appearance, saves laboratory space, and is easy to maintain.

Description

Technical Field

[0001] The present invention relates to the technical field of clamps, in particular to an integral clamp containing an inner flow channel. Background Art

[0002] Fixtures, tooling, and fluid piping systems are commonly used in various hydraulic, structural, and control test benches. When a test bench has a base excitation and contains a large number of hydraulic lines, piping layout design becomes more complex. Height overlap is unavoidable, and maintaining vertical spacing between the lines requires excessive space. During fixture and piping design, the fixture must be lightweight, yet its natural frequencies within the operating frequency range must be minimized, ensuring rigidity. Furthermore, overlapping piping can easily cause vibration-induced collisions and failure, necessitating the addition of structures such as brackets and valve blocks to stabilize the piping. This increases complexity and weight. Space is limited on a base excitation test bench for different test pieces, and once filled with test pieces, designing piping layout becomes challenging. Frequent fixture resonance in some tests necessitated frequent stops during operation, impacting test progress. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides an integral fixture containing an internal flow channel, in which the flow channel is processed and corresponds to the pipeline, which can effectively avoid the resonant frequency and greatly reduce the difficulty of pipeline distribution design. At the same time, the integral fixture has a neat appearance, saves laboratory space, and is easy to maintain.

[0004] According to the technical solution of the present invention, an integral clamp with an inner flow channel includes:

[0005] A bottom plate having a bottom plate flow channel structure and an oil inlet and an oil outlet connected to the bottom plate flow channel structure;

[0006] A valve block connected to the bottom plate comprises a valve block flow channel structure and a plurality of valve block side surfaces, wherein the plurality of valve block side surfaces are connected in pairs through the valve block flow channel structure;

[0007] At least one stopper connected to the bottom plate, comprising a stopper flow channel structure and a plurality of stopper side surfaces, wherein the plurality of stopper side surfaces are connected in pairs through the stopper flow channel structure;

[0008] Wherein, a test piece installation area is formed between the bottom plate, the stop block and the valve block.

[0009] In one embodiment of the present invention, the bottom plate flow channel structure includes at least one bottom plate flow channel, the bottom plate has multiple bottom plate side surfaces, and both ends of the multiple bottom plate flow channels pass through the bottom plate side surfaces and form the oil inlet and / or the oil outlet.

[0010] In one embodiment of the present invention, at least one bottom plate flow channel communicating with the oil outlet is arranged to be inclined downwardly with respect to the bottom plate.

[0011] In one embodiment of the present invention, the bottom plate flow channel structure includes two bottom plate flow channels that intersect and are connected in the bottom plate flow channel, wherein both ends of one bottom plate flow channel are oil inlets, and one end of the other bottom plate flow channel is an oil inlet and the other end is an oil outlet.

[0012] In one embodiment of the present invention, the valve block flow channel structure includes a straight channel and a curved flow channel, the two valve block sides arranged opposite to each other in the valve block are connected through the straight channel, and the two valve block sides arranged adjacent to each other in the valve block are connected through the curved flow channel.

[0013] In one embodiment of the present invention, the valve block has a hexahedron structure, and the hexahedron corresponds to four test piece installation areas. According to the specific requirements of the project, the body with different numbers of sides can be changed to accommodate the number of test piece installation areas. The valve block flow channel structure is vertically arranged in multiple layers in the hexahedron structure, including a first group of straight flow channels parallel to the bottom plate and connected to two opposite first side surfaces of the hexahedron structure, a second group of straight flow channels parallel to the bottom plate and connected to two opposite second side surfaces of the hexahedron structure, and a group of curved flow channels parallel to the bottom plate and connected to the first and second adjacent side surfaces of the hexahedron structure.

[0014] In one embodiment of the present invention, the block is fan-shaped, and two of the block side surfaces among the multiple blocks are circumferentially arranged with the valve block as the center. The block flow channel structure includes at least one block flow channel connected to the two block side surfaces among the blocks, and the block flow channel is a straight line or curved structure.

[0015] In one embodiment of the present invention, a positioning tenon is provided on the bottom plate, and a first positioning groove adapted to the positioning tenon is provided on the valve block.

[0016] In one embodiment of the present invention, a second positioning groove is provided on the bottom plate, and the stopper is embedded in the second positioning groove.

[0017] In one embodiment of the present invention, the valve block is provided with a first vertical through hole, the stop block is provided with a second vertical through hole, the valve block is detachably connected to the base plate through the first vertical through hole and the mounting piece, and the stop block is detachably connected to the base plate through the second vertical through hole and the mounting piece.

[0018] The above technical solution of the present invention has the following advantages over the prior art:

[0019] The integrated fixture of the present invention can improve the problem of soft stiffness when designing a single fixture, effectively solve the problem of fixture resonance during basic excitation, and avoid damage to the test piece; it can also avoid the problem of pipeline pulling damage caused by different resonance frequencies of different fixtures or looseness of some fixtures during basic excitation.

[0020] The flow channels in the integral fixture of the present invention can avoid the risk of mutual interference and damage between pipelines due to the narrow space of the vibration table during foundation excitation; can avoid the problem of difficult pipeline distribution design when the space of the foundation excitation vibration table is narrow; and can effectively avoid the problem of pipeline failure due to the fluid-solid coupling effect.

[0021] The integrated fixture of the present invention can transmit the basic excitation of the vibration table to each test piece more completely and synchronously when considering the basic excitation effect, thereby improving the accuracy of the test data.

[0022] The integrated fixture of the present invention has a neat and simple appearance, minimizes the space occupied by pipelines, saves laboratory space, and beautifies the test environment. It can help avoid complex pipeline designs (such as wrapping, fixing, and staggering), maximize the integrated utilization of laboratory space, reduce the complexity of the pipeline system, and facilitate maintenance and care by test personnel.

[0023] (5) The valve block, baffle and base plate in the present invention are all detachable. Combinations of flow channels, base plates and valve blocks of different sizes can be designed according to the test requirements of different projects, thereby enhancing the versatility of the integral fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0025] Figure 1 It is a schematic diagram of the integral clamp structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the bottom plate structure of the present invention.

[0027] Figure 3 It is a schematic diagram of the bottom structure of the valve block of the present invention.

[0028] Figure 4 It is a schematic diagram of the bottom plate flow channel structure of the present invention.

[0029] Figure 5 This is a schematic diagram of the bottom plate flow channel inclination of the present invention.

[0030] Figure 6 It is a schematic diagram of the valve block structure of the present invention.

[0031] Figure 7It is a schematic diagram of the flow channel structure of the valve block of the present invention.

[0032] Figure 8 It is a schematic diagram of the block structure of the present invention.

[0033] Description of the accompanying drawings:

[0034] 1. Stopper; 1a. Stopper side; 1b. Stopper flow channel; 2. Valve block; 2a. Valve block side; 3. Stopper flow channel structure; 4. Bottom plate flow channel structure; 5. Bottom plate; 5a. Bottom plate side; 6. Valve block flow channel structure; 6a. Direct current channel; 6b. Curved flow channel; 61a. First group of direct current channels; 61b. Second group of direct current channels; 61c. Curved flow channel group; 7a. First positioning groove; 7b. Second positioning groove; 8. Mounting hole; 9. First vertical through hole; 10. Positioning tenon; 11. Second vertical through hole; 12. Bottom plate flow channel; 13. Oil outlet; 14. Oil inlet. DETAILED DESCRIPTION

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0036] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0037] In the present invention, "several" means one or more, "multiple" means more than two, "greater than," "less than," "exceeds," etc. are understood to exclude the number itself; "above," "below," "within," etc. are understood to include the number itself. In the description of the present invention, the use of "first" or "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0038] In the present invention, unless otherwise expressly defined, terms such as "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to direct connection or indirect connection through an intermediate medium; fixed connection or detachable connection or integral molding; mechanical connection or electrical connection or mutual communication; and internal connection between two components or interaction between two components. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0039] Reference Figures 1 to 8As shown, an integral fixture with an inner flow channel includes:

[0040] A bottom plate 5 having a bottom plate flow channel structure 4 and an oil inlet 14 and an oil outlet 13 connected to the bottom plate flow channel structure 4;

[0041] The valve block 2 connected to the bottom plate 5 has a valve block flow channel structure 6 and a plurality of valve block side surfaces 2a, and the plurality of valve block side surfaces 2a are connected in pairs through the valve block flow channel structure 6;

[0042] At least one stopper 1 connected to the bottom plate 5, having a stopper flow channel structure 3 and a plurality of stopper side surfaces 1a, wherein the plurality of stopper side surfaces 1a are connected in pairs through the stopper flow channel structure 3;

[0043] The bottom plate 5 , the stopper 1 and the valve block 2 form a test piece installation area.

[0044] Specifically, the bottom plate 5 has a plurality of bottom plate side surfaces 5 a , and both ends of the plurality of bottom plate flow channels 12 pass through the bottom plate side surfaces 5 a and form the oil inlet 14 and / or the oil outlet 13 .

[0045] Specifically, the bottom plate flow channel structure 4 includes at least one bottom plate flow channel 12, and at least one bottom plate flow channel 12 connected to the oil outlet 13 is arranged downwardly inclined to the bottom plate 5, preferably inclined at 0.36°, to facilitate oil return.

[0046] Specifically, the bottom plate flow channel structure 4 includes two bottom plate flow channels 12 that intersect and are connected in the bottom plate flow channel 12, wherein both ends of one bottom plate flow channel 12 are oil inlets 14, and one end of the other bottom plate flow channel 12 is an oil inlet 14, and the other end is an oil outlet 13.

[0047] Specifically, the valve block flow channel structure 6 includes a straight channel 6a and a curved channel 6b. The two valve block side surfaces 2a arranged opposite to each other in the valve block 2 are connected through the straight channel 6a, and the two valve block side surfaces 2a arranged adjacent to each other in the valve block 2 are connected through the curved channel 6b.

[0048] In some embodiments, to account for the potential need for multiple tube connections between test pieces, the valve block 2 is configured as a hexahedron structure. The hexahedron corresponds to four test piece installation areas. Depending on specific needs, the hexahedron can be modified to have different numbers of sides to accommodate the number of test piece installation areas. The valve block flow channel structure 6 is vertically arranged in multiple layers within the hexahedron structure, including a first set of straight flow channels 61a parallel to the base plate 5 and connected to two opposing first side surfaces of the hexahedron structure; a second set of straight flow channels 61b parallel to the base plate 5 and connected to two opposing second side surfaces of the hexahedron structure; and a set of curved flow channels 61c parallel to the base plate 5 and connected to adjacent first and second side surfaces of the hexahedron structure. Specifically, the hexahedron structure is sequentially arranged from top to bottom (from bottom to top): a first set of straight flow channels 61a, a second set of straight flow channels 61b, and four sets of curved flow channels 61c, forming a three-layer structure on each side of the hexahedron structure, resulting in a compact overall structure. The vertical layer spacing of the hexahedral structure can be minimized within the technically permitted range, maximizing the space-saving advantage of the flow channel over the external pipeline, and setting the flow channel does not require consideration of mutual interference during vibration and fluid-solid coupling vibration problems.

[0049] Specifically, the block 1 has a fan-shaped structure, with two block side surfaces 1a of the multiple blocks 1 arranged circumferentially around the valve block 2. The block flow channel structure 3 includes at least one block flow channel 1b connecting the two block side surfaces 1a of the block 1. The block flow channel 1b has a straight or curved structure. In this embodiment, three vertical channels are provided to connect the liquid inlet and outlet on the back of the test piece or to connect test pieces.

[0050] A certain gap is left between the stopper 1 and the valve block 2 . Four stoppers 1 are provided and evenly distributed circumferentially along the valve block 2 , so as to form a test piece installation area between the bottom plate 5 , the stopper 1 and the valve block 2 .

[0051] During actual installation, install each test piece in the installation area between each block 1; if the installation edge of the test piece is not on the bottom surface but in other relatively exposed positions, it can be processed in the transfer stage on the side surface 1a of the block (since the entire system has a stronger integrity, its vibration effect is bound to be better than directly designing a separate fixture).

[0052] Specifically, a positioning tenon 10 is provided on the bottom plate 5 , and a first positioning groove 7 a adapted to the positioning tenon 10 is provided on the valve block 2 .

[0053] Specifically, a second positioning groove 7 b is provided on the bottom plate 5 , and the stopper 1 is embedded in the second positioning groove 7 b.

[0054] Specifically, the valve block 2 is provided with a first vertical through hole 9, and the stopper 1 is provided with a second vertical through hole 11. The valve block 2 is detachably connected to the base plate 5 through the first vertical through hole 9 and the mounting member (which may be a long bolt and a nut), and the stopper 1 is detachably connected to the base plate 5 through the second vertical through hole 11 and the mounting member, so that both the valve block 2 and the stopper 1 are detachable, and the valve block 2 and the stopper 1 with flow channels of different cross-sectional diameters and different flow designs can be replaced, as well as the base plates 5 of different sizes can be replaced to adapt to the test pieces with different requirements.

[0055] The inlets and outlets at the ends of the bottom plate flow channel 12, the straight flow channel 6a, the curved flow channel 6b, and the block flow channel 1b are all threaded for connecting to pipelines.

[0056] The base plate 5 is provided with mounting holes 8 for the test pieces. During actual installation, each test piece is installed in the mounting area between each block 1. Since the entire system is more integrated, its vibration effect is bound to be better than directly designing a separate fixture.

[0057] Each valve block side 2a in each valve block 2 has a flow channel that can connect to the other valve block side 2a via short pipes and precisely sized short pipes. The flow channel replaces virtually all piping functions, greatly reducing space and the difficulty of piping design. If piping is required between the backs of the test pieces, the connection can be completed through the valve block flow channel structure 6 and short pipes.

[0058] If the test piece needs oil return, the oil outlet on the back of the test piece can be directly connected to the oil inlet 14 of the base plate 5, and the oil outlet 13 of the base plate 5 is connected to the oil station or the oil return pipeline. The test piece can also be directly connected to the oil return station and the oil return pipeline.

[0059] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An integral fixture with an inner flow channel, characterized in that: include: A bottom plate (5) having a bottom plate flow channel structure (4) and an oil inlet (14) and an oil outlet (13) connected to the bottom plate flow channel structure (4); A valve block (2) connected to the bottom plate (5) comprises a valve block flow channel structure (6) and a plurality of valve block side surfaces (2a), wherein the plurality of valve block side surfaces (2a) are connected in pairs via the valve block flow channel structure (6); At least one stopper (1) connected to the bottom plate (5), comprising a stopper flow channel structure (3) and a plurality of stopper side surfaces (1a), wherein the plurality of stopper side surfaces (1a) are connected in pairs via the stopper flow channel structure (3); Wherein, a test piece installation area is formed between the bottom plate (5), the stop block (1) and the valve block (2); The valve block flow channel structure (6) includes a straight flow channel and a curved flow channel, two valve block side surfaces (2a) arranged opposite to each other in the valve block (2) are connected through the straight flow channel, and two valve block side surfaces (2a) arranged adjacent to each other in the valve block (2) are connected through the curved flow channel; The valve block (2) is a hexahedral structure, and the valve block flow channel structure (6) is vertically arranged in multiple layers on the hexahedral structure, including a first group of straight flow channels (61a) parallel to the bottom plate (5) and connected to two first side surfaces oppositely arranged in the hexahedral structure, a second group of straight flow channels (61b) parallel to the bottom plate (5) and connected to two second side surfaces oppositely arranged in the hexahedral structure, and a group of curved flow channels (61c) parallel to the bottom plate (5) and connected to the first side surface and the second side surface adjacently arranged in the hexahedral structure; The stopper (1) is in a fan-shaped structure, two of the stopper side surfaces (1a) of the plurality of stoppers (1) are arranged circumferentially with the valve block (2) as the center, and the stopper flow channel structure (3) includes at least one stopper flow channel (1b) connected to the two stopper side surfaces (1a) of the stopper (1), and the stopper flow channel (1b) is in a straight line or a curved line structure; The bottom plate (5) is provided with a positioning tenon (10), and the valve block (2) is provided with a first positioning groove (7a) adapted to the positioning tenon (10); A second positioning groove (7b) is provided on the bottom plate (5), and the stopper (1) is embedded in the second positioning groove (7b); The valve block (2) is provided with a first vertical through hole (9), and the stop block (1) is provided with a second vertical through hole (11). The valve block (2) is detachably connected to the base plate (5) via the first vertical through hole (9) and a mounting member, and the stop block (1) is detachably connected to the base plate (5) via the second vertical through hole (11) and a mounting member.

2. The integral fixture with an inner flow channel according to claim 1, characterized in that: The bottom plate flow channel structure (4) includes at least one bottom plate flow channel (12), the bottom plate (5) has a plurality of bottom plate side surfaces (5a), and both ends of the plurality of bottom plate flow channels (12) penetrate the bottom plate side surfaces (5a) and form the oil inlet (14) and / or the oil outlet (13).

3. The integral fixture with inner flow channel according to claim 2, characterized in that: At least one bottom plate flow channel (12) communicating with the oil outlet (13) is arranged to be inclined downwardly relative to the bottom plate (5).

4. The integral fixture with inner flow channel according to claim 3, characterized in that: The bottom plate flow channel structure (4) comprises two bottom plate flow channels (12) intersecting and connected, wherein both ends of one bottom plate flow channel (12) are oil inlets (14), and one end of the other bottom plate flow channel (12) is an oil inlet (14) and the other end is an oil outlet (13).

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