Pressurizing mechanism for mortar detection and mortar press

Abstract

The utility model discloses a pressurizing mechanism for mortar detection and a mortar press, and belongs to the technical field of mortar compression resistance detection. The pressurizing mechanism for mortar detection comprises a working table, a pressurizing assembly is arranged at the upper end of the working table, and the pressurizing assembly comprises a pressing plate capable of ascending and descending and acting on a mortar test block; two protective coamings capable of synchronously and reversely sliding are arranged at the upper end of the workbench, the protective coamings are concave, the two sides of the protective coamings are each slidably connected with a baffle, springs are arranged between the baffles and the protective coamings to achieve elastic connection, and when the two protective coamings get close to each other, the baffles are connected with the protective coamings through the springs. The baffles positioned on the two protective coamings are in contact with each other and surround the peripheral side of the mortar test block; human body injury caused by broken block splashing when the mortar test block is crushed is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of mortar compression resistance detection, and specifically relates to a pressurizing mechanism and a mortar press for mortar detection. Background Art

[0002] The compressive strength of mortar determines the construction quality of the entire project. To ensure safety in later use, it is necessary to conduct necessary compressive strength tests. During the test, the solidified mortar test block is placed on the workbench of the press, and the mortar test block is pressurized until it is crushed. The maximum pressure value during the pressurization process is read and compared with the compressive resistance standard of the mortar, thereby achieving the purpose of compressive resistance testing.

[0003] However, at the moment when the mortar test block is crushed, the fragments are likely to fly to the surrounding sides, which may cause personal injury. For this reason, a pressurizing mechanism for mortar testing is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a pressurizing mechanism and a mortar press for mortar testing, which solve the problems in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A pressurizing mechanism for mortar testing, comprising a workbench, a pressurizing assembly is arranged on the upper end of the workbench, and the pressurizing assembly comprises a pressing plate that can be raised and lowered and acts on a mortar test block;

[0007] Two protective panels that can slide synchronously in opposite directions are arranged at the upper end of the workbench. The protective panels are concave, and are slidably connected with a baffle on each side of the protective panels. A spring is arranged between the baffles to achieve elastic connection. When the two protective panels are close to each other, the baffles on the two protective panels contact each other and surround the sides of the mortar test block to prevent the mortar test block from being crushed and the fragments from flying and causing injuries to the human body.

[0008] Furthermore, slide grooves are provided on both sides of the protective enclosure, and the baffle plate is slidably matched with the slide grooves.

[0009] Furthermore, two guide rods are provided on one side of the baffle, the guide rods pass through the protective enclosure and slideably cooperate with it, the spring is sleeved on the guide rods, and the two ends of the spring are respectively fixedly connected to the inner end surface of the slide groove and the end surface of the baffle.

[0010] Furthermore, a truncated cone is fixed to one end of the guide rod away from the baffle, the diameter of the truncated cone is larger than the diameter of the guide rod, the truncated cone is located outside the protective enclosure, and under the elastic force of the spring, the truncated cone can be tightly attached to the outer surface of the protective enclosure.

[0011] Furthermore, a connecting block is fixed to the lower end of the two protective panels, and the connecting block is slidably connected to the workbench; two fixed plates are fixed to the lower end of the workbench, and a screw rod is rotatably connected between the two fixed plates, and the two ends of the screw rod are respectively provided with a first external thread and a second external thread with opposite rotation directions and equal pitches, and the first external thread and the second external thread respectively pass through the two connecting blocks and are threadedly connected thereto.

[0012] Furthermore, the thread lead angles of the first external thread and the second external thread are both smaller than the equivalent friction angle.

[0013] Furthermore, a gear is fixed at one end of the screw rod, a connecting rod is fixed on the pressure plate, and a rack meshing with the gear is provided on the connecting rod; when the pressure plate descends, the two protective enclosures can be brought closer to each other; before the pressure plate descends and contacts the mortar specimen, the baffles on the two protective enclosures have already contacted.

[0014] Furthermore, the pressurizing assembly includes a fixing frame fixed on the upper end of the workbench, and an oil cylinder is fixed on the fixing frame to drive the pressing plate to rise and fall.

[0015] Furthermore, an oil pressure sensor is provided on the oil cylinder to monitor the pressure of the oil cylinder in real time.

[0016] A mortar press comprises the above-mentioned pressurizing mechanism for mortar testing.

[0017] Beneficial effects of the utility model:

[0018] 1. Two protective components capable of synchronously sliding in opposite directions are arranged on the upper end of the workbench, and a concave protective enclosure is arranged in the protective component. A baffle is elastically connected to both sides of the protective enclosure. By controlling the two protective enclosures to approach each other, the baffles on the two protective enclosures can be brought into contact, thereby surrounding the sides of the mortar test block to prevent the mortar test block from being crushed and the fragments from flying out and causing injuries to the human body.

[0019] 2. By setting a connecting rod on the pressure plate and setting a gear on the screw rod to mesh with the rack on the connecting rod, the timing of the surrounding protection of the protective enclosure can be controlled to ensure that when the mortar is subjected to a pressure test, its surroundings can be protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the structure of the pressurizing mechanism of the utility model;

[0022] Figure 2 It is a schematic diagram of the workbench structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the structure of the pressurizing component of the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the protection component of the utility model;

[0025] Figure 5 It is a schematic diagram of the screw rod structure of the utility model. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 3 As shown, a pressurizing mechanism for mortar testing includes a workbench 1, a bearing platform 11 is arranged at the upper end of the workbench 1, a pressurizing assembly 2 is arranged at the upper end of the workbench 1, and the pressurizing assembly 2 includes a fixing frame 21 fixed to the upper end of the workbench 1, a cylinder 22 is fixed on the fixing frame 21, and a pressing plate 23 is fixed to the end of the driving shaft of the cylinder 22; a square mortar test block is placed on the bearing platform 11, and under the drive of the cylinder 22, the pressing plate 23 can descend and apply pressure to the mortar test block until the mortar test block is broken, so as to read the maximum instantaneous pressure of the cylinder 22;

[0028] In this embodiment, an oil pressure sensor is provided on the oil cylinder 22 to monitor the pressure of the oil cylinder 22 in real time. In some embodiments, the oil pressure sensor can transmit the pressure of the oil cylinder 22 to the PC for real-time display and storage.

[0029] Two protection components 3 capable of synchronously sliding in opposite directions are arranged on the upper end of the workbench 1. When the two protection components 3 are close to each other, they can surround the sides of the mortar test block to prevent the mortar test block from being squeezed and crushed, and the broken pieces flying out to cause human injuries;

[0030] like Figure 4As shown, the protection assembly 3 includes a protection panel 31 that can slide on the upper end of the workbench 1, and the protection panels 31 in the two protection assemblies 3 slide synchronously in opposite directions. The protection panels 31 are in a "concave" shape, and a baffle 33 is slidably connected to both sides of the protection panels 31, and a spring 34 is arranged between the baffle 33 and the protection panels 31 to realize elastic connection; by controlling the two protection panels 31 to approach each other, the baffles 33 on the two protection panels 31 can be brought into contact, thereby realizing the surrounding of the mortar test block;

[0031] In this embodiment, both sides of the protective enclosure 31 are provided with a slide groove 311, and the baffle 33 is slidably matched with the slide groove 311; one side of the baffle 33 is provided with two guide rods 35, the guide rods 35 penetrate the protective enclosure 31 and are slidably matched with it, and the spring 34 is sleeved on the guide rod 35, and the two ends of the spring 34 are respectively fixedly connected to the inner end surface of the slide groove 311 and the end surface of the baffle 33, so as to realize the elastic connection between the baffle 33 and the protective enclosure 1;

[0032] A truncated cone 36 is fixed to one end of the guide rod 35 away from the baffle 33 . The diameter of the truncated cone 36 is larger than the diameter of the guide rod 35 . The truncated cone 36 is located outside the protective enclosure 31 , and under the elastic force of the spring 34 , the truncated cone 36 can be tightly attached to the outer surface of the protective enclosure 31 .

[0033] like Figure 4 As shown, a connecting block 32 is fixed to the lower end of each of the two protective enclosures 31, and the connecting block 32 is slidably connected to the workbench 1 and extends to the bottom of the workbench 1; two fixing plates 12 are fixed to the lower end of the workbench 1, and a screw rod 4 is rotatably connected between the two fixing plates 12, as shown in FIG. Figure 5 As shown, the two ends of the screw rod 4 are respectively provided with a first external thread 41 and a second external thread 42 with opposite rotation directions and equal pitches, and the first external thread 41 and the second external thread 42 respectively penetrate the two connecting blocks 32 and are threadedly connected thereto, and by controlling the rotation of the screw rod 4 (in some embodiments, a motor can be arranged on the workbench to directly drive the screw rod 4 to rotate), the two protective enclosures 31 can be synchronously slid in the opposite direction;

[0034] Furthermore, in order to ensure that the protective enclosure 31 remains stable after the position is adjusted, the screw 4 needs to have self-locking properties, that is, the thread lead angles of the first external thread 41 and the second external thread 42 are both smaller than the equivalent friction angle;

[0035] In some embodiments, two cylinders may be provided to drive the two protective panels 31 to slide synchronously in opposite directions.

[0036] A gear 5 is fixed to one end of the screw rod 4, and a connecting rod 6 is fixed to the pressure plate 23, and a rack 61 meshing with the gear 5 is arranged on the connecting rod 6; when the pressure plate 23 drives the connecting rod 6 to descend, it can drive the two protective enclosures 3 to approach each other; when the pressure plate 23 is at the highest point, the two protective enclosures 31 are at the farthest points, which is convenient for loading and unloading the mortar specimen; and before the pressure plate 23 descends to contact the mortar specimen, the baffles 33 located on the two protective enclosures 31 have already contacted each other; as the pressure plate 23 continues to descend and applies pressure to the mortar specimen, the baffles 33 overcome the elastic force of the spring 34 and shrink toward the slide groove 311. During this process, the two protective components 3 can still surround the circumference of the mortar specimen;

[0037] The arrangement of the gear 5 and the connecting rod 6 interconnects the lifting and lowering movement of the pressure plate 23 with the sliding of the protective enclosure 31 to control the surrounding protection timing of the protective enclosure 31, thereby ensuring that when the mortar is subjected to a pressure test, its surroundings can be protected to avoid injuries to the human body caused by flying fragments.

[0038] Working principle:

[0039] By arranging two protection components 3 capable of synchronously sliding in opposite directions at the upper end of the workbench 1, and arranging a concave protection enclosure 31 in the protection component 3, and elastically connecting a baffle 33 on both sides of the protection enclosure 31, by controlling the two protection enclosures 31 to approach each other, the baffles 33 on the two protection enclosures 31 can be brought into contact, thereby surrounding the mortar test block and preventing the fragments from flying out and causing human injuries when the mortar test block is crushed. By arranging a connecting rod 6 on the pressing plate 23 and arranging a gear 5 on the screw rod 4 to mesh with the rack 61 on the connecting rod 6, the surrounding protection timing of the protection enclosure 31 is controlled to ensure that the surrounding area can be protected when the mortar is subjected to a pressure test.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means 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 utility model. In this specification, the schematic representation of the above terms does 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.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A pressurizing mechanism for mortar testing, comprising a workbench (1), characterized in that: A pressurizing assembly (2) is arranged at the upper end of the workbench (1), and the pressurizing assembly (2) comprises a pressing plate (23) which can be raised and lowered and acts on the mortar test block; The upper end of the workbench (1) is provided with two protective panels (31) capable of synchronously sliding in opposite directions. The protective panels (31) are concave in shape. A baffle (33) is slidably connected to each other on both sides of the protective panels (31). A spring (34) is provided between the baffle (33) and the protective panels (31) to achieve elastic connection. When the two protective panels (31) are close to each other, the baffles (33) on the two protective panels (31) contact each other and surround the mortar test block.

2. A pressurizing mechanism for mortar detection according to claim 1, characterized in that: Slide grooves (311) are provided on both sides of the protective enclosure (31), and the baffle (33) is slidably matched with the slide grooves (311).

3. A pressurizing mechanism for mortar detection according to claim 2, characterized in that: Two guide rods (35) are arranged on one side of the baffle (33). The guide rods (35) penetrate the protective enclosure (31) and are slidably matched therewith. The spring (34) is sleeved on the guide rod (35). The two ends of the spring (34) are respectively fixedly connected to the inner end surface of the slide groove (311) and the end surface of the baffle (33).

4. A pressurizing mechanism for mortar detection according to claim 3, characterized in that: A truncated cone (36) is fixed to one end of the guide rod (35) away from the baffle (33). The diameter of the truncated cone (36) is larger than the diameter of the guide rod (35) 5. The truncated cone (36) is located outside the protective enclosure (31). Under the elastic force of the spring (34), the truncated cone (36) can be tightly attached to the outer surface of the protective enclosure (31).

5. The pressurizing mechanism for mortar detection according to claim 1, characterized in that: A connecting block (32) is fixed at the lower end of each of the two protective enclosures (31), and the connecting block (32) is slidably connected to the workbench (1); two fixed plates (12) are fixed at the lower end of the workbench (1), and a screw rod (4) is rotatably connected between the two fixed plates (12), and the two ends of the screw rod (4) are respectively provided with a first external thread (41) and a second external thread (42) with opposite rotation directions and equal pitches, and the first external thread (41) and the second external thread (42) respectively penetrate the two connecting blocks (32) and are threadedly connected thereto.

6. A pressurizing mechanism for mortar detection according to claim 5, characterized in that: The thread lead angles of the first external thread (41) and the second external thread (42) are both smaller than the equivalent friction angle.

7. A pressurizing mechanism for mortar detection according to claim 5, characterized in that: A gear (5) is fixed to one end of the screw rod (4), a connecting rod (6) is fixed to the pressing plate (23), and a rack (61) meshing with the gear (5) is arranged on the connecting rod (6); when the pressing plate (23) descends, the two protective enclosures (31) can be brought closer to each other; before the pressing plate (23) descends and contacts the mortar specimen, the baffles (33) on the two protective enclosures (31) have already contacted.

8. The pressurizing mechanism for mortar detection according to claim 1, characterized in that: The pressurizing assembly (2) comprises a fixing frame (21) fixed to the upper end of the workbench (1), and an oil cylinder (22) is fixed on the fixing frame (21) to drive the pressing plate (23) to rise and fall.

9. A pressurizing mechanism for mortar detection according to claim 8, characterized in that: An oil pressure sensor is arranged on the oil cylinder (22) to monitor the pressure of the oil cylinder (22) in real time.

10. A mortar press, characterized in that: A pressurizing mechanism for mortar detection comprising the pressurizing mechanism described in any one of claims 1 to 9.

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