Operation protection device of hydraulic pressure testing machine

Abstract

The utility model provides an operation protection device of a hydraulic pressure testing machine, which belongs to the technical field of pressure testing machine protection, and comprises an operation table, a protection cover is arranged on the operation table, a protection effect is achieved by covering the protection cover outside a test workpiece, and sleeves are symmetrically and rotatably connected to the upper side wall of the operation table. The side wall of the top plate is fixedly provided with a mounting frame for fixing a testing machine, and during pressure testing, the two sleeves rotate on the operation table in parallel, so that lead screws in threaded connection with the interiors of the two sleeves drive the two fixing frames to move at the same time, and the lead screws drive the protective cover to move to the operation table through the fixing frames; and in the operation process, the operation process is protected through the protective cover, damage to operators caused by workpieces is prevented, so that the protective effect is achieved, and convenience is brought to the operation process of related personnel through adjustment and movement of the protective cover.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure testing machine protection, and in particular relates to an operation protection device for a hydraulic pressure testing machine. Background Art

[0002] The hydraulic pressure testing machine is a kind of equipment mainly used for compression testing of various materials, such as compressive strength testing of cement, concrete, various building bricks, rubber pads, concrete components, metal components, etc. During the experimental operation of the pressure testing machine, the workpiece may fly out due to uneven force, which may cause damage to people around, so corresponding protective measures need to be taken;

[0003] A related art (publication number: CN217765789U) discloses a hydraulic universal testing machine protection device, and the disclosed technical solution is as follows: the hydraulic universal testing machine protection device drives the protection plate to be lifted upward or closed downward by a cylinder assembly, automatically controls the closing of the protection plate, improves the automation of the device, does not require manual opening and closing, and is more convenient to operate. The protection plate is used to protect the operator to prevent debris from splashing onto the operator. At the same time, the entire experimental process can be observed through the observation window. The lower plate is pulled up and down by the handle to facilitate the opening and closing of the lower plate, so that the position of the test object can be adjusted in the middle of the test or the experimental process can be observed at close range without lifting the entire protection plate, thereby improving portability and flexibility;

[0004] In the above disclosed technical solutions, the following problems are found in the related technologies: in the process of placing the workpiece, since the placement opening is at a high place, the relevant operators may need to climb to a certain height with the help of external objects to place the workpiece, which brings inconvenience to the operation process. If the workpiece is large in size, it is not easy to place it through the aperture opened by the high protection plate, making the operation process more complicated. In this regard, we propose a new operating protection device for a hydraulic pressure testing machine;

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background technology section of this application, and therefore may include information that does not constitute prior art information known to ordinary technicians in the field. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology. In order to solve the problem of pressure testing machine operation protection existing in the above-mentioned prior art, the utility model provides an operation protection device for a hydraulic pressure testing machine, which adopts a protection mechanism combined with a stabilization mechanism to achieve the effect of easy use and safe operation. Its specific technical solution is:

[0007] An operation protection device for a hydraulic pressure testing machine comprises an operation table, a protective cover is arranged on the operation table, a sleeve is symmetrically rotatably connected to the upper side wall of the operation table, two sleeves are respectively threadedly connected to the outer side walls of two lead screws, one end of the two lead screws is respectively fixedly connected to the protective cover through a fixing frame, a top plate is fixedly installed on the side wall of the operation table through a symmetrical bracket, a mounting frame for fixing the testing machine is fixedly installed on the side wall of the top plate, and a positioning mechanism for fixing a workpiece is arranged on the operation table.

[0008] In addition, the operating protection device of the hydraulic pressure testing machine in the above technical solution provided by the utility model may also have the following additional technical features:

[0009] In the above technical solution, the outer side walls of the two sleeves are sleeved with pulleys, and the outsides of the two pulleys are sleeved with transmission belts.

[0010] A first gear is sleeved on the outer wall of the sleeve, a motor is fixedly mounted on the side wall of the operating table, a second gear is sleeved on the outer wall of the motor output shaft, and the second gear is meshed with the first gear.

[0011] The side walls of the operating table are symmetrically fixed with a support seat through a support plate, and the support seat is rotatably connected to the outside of the sleeve. The inner wall of the support seat is evenly provided with a plurality of movable grooves, and the outer wall of the sleeve is circumferentially provided with a sliding groove, and balls are evenly embedded in the inner cavities of the sliding groove and the plurality of movable grooves.

[0012] A connecting plate is symmetrically fixedly installed on the upper side wall of the operating table, a guide rod is fixedly installed on the side wall of the connecting plate through a symmetrical mounting seat, the outer side wall of the guide rod is slidably connected to a guide seat, and the two guide seats are symmetrically fixedly installed on the two side walls of the protective cover.

[0013] The positioning mechanism comprises a positioning seat, an inner cavity of the positioning seat is threadedly connected with a threaded rod, and a positioning block is fixedly mounted on one end of the threaded rod.

[0014] An observation window is embedded in the side wall of the protective cover.

[0015] Compared with the prior art, the operating protection device of the hydraulic pressure testing machine of the utility model has the following beneficial effects:

[0016] 1. When conducting a pressure test, the two sleeves rotate parallel to each other on the operating table, so that the lead screws connected by the internal threads of the two sleeves drive the two fixed frames to move at the same time, so that the lead screw drives the protective cover to move to the operating table through the fixed frame. During the operation, the protective cover protects the operation process to prevent the workpiece from causing damage to the operator, thereby achieving a protective effect. The adjustment and movement of the protective cover brings convenience to the operation process of relevant personnel.

[0017] 2. When adjusting the position of the protective cover, the two sleeves rotate at the same time, so that the two lead screws synchronously drive the protective cover to move through the fixed frame. The stability of the protective cover movement process is ensured by the two synchronously rotating sleeves, avoiding the position deviation of the lead screws on both sides, thereby ensuring the stability of the protective cover adjustment process.

[0018] 3. The output shaft of the motor drives the corresponding second gear to rotate, so that the first gear meshing with the second gear drives the corresponding sleeve to rotate, and the two sleeves are rotated synchronously through two pulleys to adjust the position of the protective cover, thereby bringing convenience to the operation process of relevant personnel.

[0019] 4. In the process of rotating the sleeve to allow the screw to adjust the moving position of the protective cover through the fixed frame, the sleeve drives the sliding groove on the outer surface to slide on the outer surfaces of multiple balls, and at the same time, the multiple balls slide on the inner walls of each movable groove respectively. The stability of the sleeve rotation process is ensured by the multiple circumferential balls, thereby ensuring the stability of the protective cover position adjustment process.

[0020] 5. In the process of adjusting the position of the protective cover by the lead screw, the two side surfaces of the protective cover drive the guide seat to slide on the outer surface of the guide rod, and the stability of the moving direction of the protective cover is ensured by the sliding cooperation between the guide seat and the guide rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an operation protection device of a hydraulic pressure testing machine of the utility model;

[0022] Figure 2 A cross-sectional view of the protective cover portion of an operating protection device of a hydraulic pressure testing machine of the utility model;

[0023] Figure 3 for Figure 1 A-direction structural schematic diagram;

[0024] in, Figures 1 to 3The correspondence between the figure numbers and the component names is: 1-operating table, 2-protective cover, 3-screw, 4-guide rod, 5-sleeve, 6-guide seat, 7-first gear, 8-second gear, 9-connecting plate, 10-fixed frame, 11-mounting seat, 12-observation window, 13-top plate, 14-mounting frame, 15-positioning block, 16-threaded rod, 17-bracket, 18-positioning seat, 19-support seat, 20-support plate, 21-transmission belt, 22-pulley, 23-ball, 24-slideway, 25-motor, 26-movable slot. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0027] The following is a combination of specific implementation cases and attached Figure 1-3 The present invention is further described below, but the present invention is not limited to these embodiments.

[0028] Example 1

[0029] An operating protection device for a hydraulic pressure testing machine, such as Figure 1-Figure 3As shown, the operating table 1 includes a protective cover 2, which is provided on the operating table 1. The protective cover 2 is covered on the outside of the test workpiece to provide a protective effect. The upper side wall of the operating table 1 is symmetrically rotatably connected with a sleeve 5. Two bearings are symmetrically embedded and installed on the upper surface of the operating table 1 and located at the rear side of the protective cover 2. The lower ends of the two sleeves 5 are symmetrically embedded and installed in the inside of the two bearings, so that the two sleeves 5 rotate on the upper surface of the operating table 1 in parallel. The two sleeves 5 are respectively threadedly connected to the outer side walls of the two lead screws 3. One end of the two lead screws 3 is respectively fixed by the fixing frame 1. 0 is fixedly connected to the protective cover 2, a threaded deep hole with a depth corresponding to the screw 3 is provided at the upper end of the sleeve 5, and the screw 3 is connected through the threaded deep hole, the upper end of the screw 3 is vertically fixed to the surface of the fixing frame 10, and the fixing frame 10 is fixed to the upper surface of the protective cover 2, and the side wall of the operating table 1 is fixedly installed with a top plate 13 through a symmetrical bracket 17, and the two brackets 17 are vertically fixedly installed on the upper surface of the operating table 1 in parallel, and the opposite surfaces between the two brackets 17 are respectively fixedly installed on both sides of the top plate 13, and the top plate is fixedly installed through the two brackets 17 13 is fixed on the top of the operating table 1, and a mounting frame 14 for fixing the test machine is fixedly installed on the side wall of the top plate 13. The mounting frame 14 is fixed to the lower surface of the top plate 13, and the pressure tester is fixed by the mounting frame 14. A positioning mechanism for fixing the workpiece is provided on the operating table 1, and the workpiece to be tested is fixed under the tester by the positioning mechanism. When performing the pressure test, the two sleeves 5 are rotated at the same time, so that the two sleeves 5 rotate on the operating table 1 in parallel with each other, so that the screws 3 connected by the internal threads of the two sleeves 5 drive the two fixing frames 10 at the same time. Move, so that the two fixing frames 10 drive the protective cover 2 to move at the same time, remove the protective cover 2 from the operating table 1, and then fix the workpiece to be tested under the pressure testing machine, and then rotate the two sleeves 5 in the direction so that the screw 3 drives the protective cover 2 to move to the operating table 1 through the fixing frame 10, and then the workpiece is tested by the pressure testing machine. During the operation, the protective cover 2 is used to protect the operation process to prevent the workpiece from causing damage to the operator, thereby achieving a protective effect. The adjustment and movement of the protective cover 2 brings convenience to the operation process of relevant personnel.

[0030] Among them, the outer walls of the two sleeves 5 are both sleeved with pulleys 22, and the outsides of the two pulleys 22 are sleeved with transmission belts 21. The two pulleys 22 are fixedly sleeved on the outer surfaces of the two sleeves 5 through the mounting holes opened in the center, so that the two pulleys 22 rotate with the two sleeves 5 respectively. When adjusting the position of the protective cover 2, one of the sleeves 5 is rotated to make the sleeve 5 drive the pulley 22 on the outer surface to rotate, so that the pulley 22 drives the other pulley 22 to rotate through the transmission belt 21 on the outer surface, so that the other sleeve 5 rotates with the other pulley 22, so that the two sleeves 5 rotate at the same time, so that the two lead screws 3 synchronously drive the protective cover 2 to move through the fixed frame 10, and the stability of the moving process of the protective cover 2 is guaranteed by the two synchronously rotating sleeves 5, and the position deviation of the lead screws 3 on both sides is avoided, thereby ensuring the stability of the adjustment process of the protective cover 2.

[0031] It is worth mentioning that a first gear 7 is sleeved on the outer wall of a sleeve 5, a motor 25 is fixedly installed on the side wall of the operating table 1, and a second gear 8 is sleeved on the outer wall of the output shaft of the motor 25, and the second gear 8 is meshed with the first gear 7. The motor 25 is fixed on the upper surface of the operating table 1 and at a position corresponding to a corresponding sleeve 5 through a motor seat. The second gear 8 is fixedly sleeved on the outer surface of the output shaft of the motor 25 through a mounting hole opened in the center, and the first gear 7 is fixedly sleeved on the outer surface of a corresponding sleeve 5 through a mounting hole opened in the center. The position of the motor 25 ensures that the second gear 8 is meshed with the first gear 7. The output shaft of the motor 25 can be adjusted in forward and reverse rotation. The corresponding second gear 8 is driven to rotate by the output shaft of the motor 25, so that the first gear 7 meshing with the second gear 8 drives the corresponding sleeve 5 to rotate, and the two sleeves 5 are rotated synchronously through two pulleys 22, thereby adjusting the position of the protective cover 2, which brings convenience to the operation process of relevant personnel.

[0032] In addition, the side wall of the operating table 1 is symmetrically fixed with a support seat 19 through a support plate 20, and the support seat 19 is rotatably connected to the outside of the sleeve 5. The two support plates 19 are vertically fixed on the upper surface of the operating table 1 in parallel with each other, and the support seats 19 are symmetrically fixed on the opposite surfaces of the two support plates 20. The two support seats 19 are movably sleeved on the outer surfaces of the two sleeves 5 through the mounting holes opened in the inner cavity. The inner side wall of the support seat 19 is uniformly provided with a plurality of movable grooves 26, and the outer side wall of the sleeve 5 is circumferentially provided with a slide groove 24. The inner cavity of the slide groove 24 and the plurality of movable grooves 26 is uniformly embedded with the ball 23. In the inner cavity of the sleeve 5 and the support seat 19, the ball 23 is uniformly embedded in the inner cavity of the sleeve 5 and the support seat 19. A circle of movable grooves 26 are continuously opened on the side surface in sequence, and a circle of sliding grooves 24 are opened on the outer surface of the sleeve 5 and at positions corresponding to the movable grooves 26. Balls 23 are embedded in the multiple movable cavities formed by each movable groove 26 and the sliding grooves 24. When the sleeve 5 is rotated to allow the screw 3 to adjust the moving position of the protective cover 2 through the fixed frame 10, the sleeve 5 drives the sliding grooves 24 on the outer surface to slide on the outer surfaces of the multiple balls 23, and at the same time, the multiple balls 23 slide on the inner walls of each movable groove 26 respectively. The stability of the sleeve 5 rotation process is guaranteed by the multiple circumferential balls 23, thereby ensuring the stability of the protective cover 2 position adjustment process.

[0033] In addition, the upper side walls of the operating table 1 are symmetrically fixed with connecting plates 9, and the two connecting plates 9 are vertically fixed on the upper surface of the operating table 1 in parallel with each other. The two connecting plates 9 are symmetrically located on both sides of the protective cover 2. The side walls of the connecting plates 9 are fixedly installed with guide rods 4 through symmetrical mounting seats 11, and the outer side walls of the guide rods 4 are slidably connected with guide seats 6. The two guide seats 6 are symmetrically fixed on the two side walls of the protective cover 2 respectively, and the two mounting seats 11 are vertically fixed on the surface of the connecting plates 9 in parallel with each other. The two ends of the guide rod 4 are vertically fixed on the opposite surfaces of the two mounting seats 11 respectively, and the guide seats 6 are movably connected to the outer surface of the guide rod 4 through the mounting through hole opened in the center. In the process of adjusting the position of the protective cover 2 by the screw 3, the two side surfaces of the protective cover 2 drive the guide seats 6 to slide in contact with the outer surface of the guide rod 4, and the stability of the moving direction of the protective cover 2 is ensured by the sliding cooperation between the guide seats 6 and the guide rod 4.

[0034] Furthermore, the positioning mechanism includes a positioning seat 18, the inner cavity of the positioning seat 18 is threadedly connected to a threaded rod 16, one end of the threaded rod 16 is fixedly installed with a positioning block 15, the positioning seat 18 is vertically fixedly installed in four directions of the operating table 1, the inner cavity of the positioning seat 18 is connected to the threaded rod 16 by opening a threaded through hole, and a circular positioning block 15 is vertically fixedly installed at one end of the threaded rod 16, the workpiece to be tested is placed between multiple positioning seats 18, and then each threaded rod 16 is screwed respectively, and the workpiece is fixed by multiple positioning blocks 15, thereby ensuring the stability of the test process and thus ensuring the accuracy of the test results.

[0035] An observation window 12 is embedded in the side wall of the protective cover 2. The observation window 12 made of transparent material is fixedly embedded in the surface of the protective cover 2. The operation process can be understood through the observation window 12, thereby bringing convenience to the operation process of relevant personnel.

[0036] The present embodiment is an operation protection device of a hydraulic pressure testing machine, and its working principle is as follows: first, the corresponding second gear 8 is driven to rotate by the output shaft of the motor 25, so that the first gear 7 meshing with the second gear 8 drives the corresponding sleeve 5 to rotate, so that the sleeve 5 drives the pulley 22 on the outer surface to rotate, so that the pulley 22 drives another pulley 22 to rotate through the transmission belt 21 on the outer surface, so that the other sleeve 5 rotates with the other pulley 22, so that the two sleeves 5 rotate at the same time, so that the two lead screws 3 synchronously drive the protective cover 2 to move through the fixed frame 10, after the protective cover 2 is removed from the operating table 1, the workpiece to be tested is placed between multiple positioning seats 18, and then each threaded rod 16 is screwed respectively, and the workpiece is fixed by multiple positioning blocks 15, and then the protective cover 2 is moved to the operating table 1 by adjusting the rotation direction of the output shaft of the motor 25, and covers the outside of the workpiece to be tested, and then tested by the pressure testing machine.

[0037] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the description of the present invention, the terms "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An operating protection device for a hydraulic pressure testing machine, comprising an operating table (1), characterized in that: The operating table (1) is provided with a protective cover (2), the upper side wall of the operating table (1) is symmetrically rotatably connected with a sleeve (5), the two sleeves (5) are respectively threadedly connected to the outer side walls of two lead screws (3), one end of the two lead screws (3) is respectively fixedly connected to the protective cover (2) through a fixing frame (10), the side wall of the operating table (1) is fixedly mounted with a top plate (13) through a symmetrical bracket (17), the side wall of the top plate (13) is fixedly mounted with a mounting frame (14) for fixing the testing machine, and the operating table (1) is provided with a positioning mechanism for fixing a workpiece.

2. The operating protection device of a hydraulic pressure testing machine according to claim 1, characterized in that: The outer side walls of the two sleeves (5) are sleeved with pulleys (22), and the outsides of the two pulleys (22) are sleeved with transmission belts (21).

3. The operating protection device of a hydraulic pressure testing machine according to claim 2, characterized in that: A first gear (7) is sleeved on the outer wall of the sleeve (5), a motor (25) is fixedly mounted on the side wall of the operating table (1), a second gear (8) is sleeved on the outer wall of the output shaft of the motor (25), and the second gear (8) is meshed with the first gear (7).

4. The operating protection device of a hydraulic pressure testing machine according to claim 3, characterized in that: A support seat (19) is symmetrically fixedly mounted on the side wall of the operating table (1) through a support plate (20); the support seat (19) is rotatably connected to the outside of the sleeve (5); a plurality of movable grooves (26) are evenly opened on the inner side wall of the support seat (19); a sliding groove (24) is evenly opened on the outer side wall of the sleeve (5); and balls (23) are evenly embedded in the inner cavities of the sliding groove (24) and the plurality of movable grooves (26).

5. The operating protection device of a hydraulic pressure testing machine according to claim 1, characterized in that: A connecting plate (9) is symmetrically fixedly mounted on the upper side wall of the operating table (1), a guide rod (4) is fixedly mounted on the side wall of the connecting plate (9) via a symmetrical mounting seat (11), an outer side wall of the guide rod (4) is slidably connected to a guide seat (6), and the two guide seats (6) are symmetrically fixedly mounted on the two side walls of the protective cover (2).

6. The operating protection device of a hydraulic pressure testing machine according to claim 1, characterized in that: The positioning mechanism comprises a positioning seat (18), the inner cavity of the positioning seat (18) is threadedly connected with a threaded rod (16), and one end of the threaded rod (16) is fixedly mounted with a positioning block (15).

7. The operating protection device of a hydraulic pressure testing machine according to claim 1, characterized in that: An observation window (12) is embedded in the side wall of the protective cover (2).

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