Marshall electric compaction test apparatus with high safety
By designing a combined structure of flipped pressure ring and limit column on the Marshall electric scaffolding instrument, the displacement problem caused by unstable fixation of the specimen is solved, and higher safety and stability are achieved.
Patent Information
- Application Number
- CN202421223006.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The Marshall electric scaling instrument on the market can only provide upward and downward pressure when fixing the specimen, and lacks clamping force in the horizontal direction, resulting in displacement of the specimen, which poses safety hazards.
A Marshall electric scaffolding instrument with a reversible pressure ring and a limiting column is designed. The upper and lower surfaces of the pressure ring are provided with a slot to fix the specimen. The limiting column is fixed by a fixing nut to prevent the specimen from horizontally displaced.
Through the combined design of the card slot and limiting column, the horizontal displacement of the specimen during the test is effectively prevented, improving the safety and stability of the test.
Smart Images
Figure CN223272255U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of asphalt mixture testing, in particular to a Marshall electric compactor with high safety. Background Art
[0002] The Marshall electric compactor is suitable for making asphalt mixture specimens using the standard compaction method for use in laboratory testing of the physical and mechanical properties of asphalt mixtures. It is also suitable for Marshall testing.
[0003] When using the compaction instruments on the market, the test piece is fixed by the pressure ring on the base. The pressure ring can only provide pressure from top to bottom. The fixing method is single and cannot provide horizontal clamping force. It is easy to cause the test piece to move during the test, which poses certain safety hazards.
[0004] Therefore, how to provide a Marshall electric compactor with high safety to solve the problems existing in the prior art is of great significance to its application. Utility Model Content
[0005] In view of this, the purpose of this application is to provide a Marshall electric compactor with high safety, so as to solve the problem that the compactors on the market fix the specimen through the pressure ring on the base during use. The pressure ring can only provide pressure from top to bottom, the fixing method is single, and it cannot provide horizontal clamping force. It is easy to cause displacement of the specimen during testing, which poses certain safety hazards.
[0006] To achieve the above objectives, the present invention provides the following technical solutions:
[0007] A highly safe Marshall electric compactor comprises a base, a machine head is mounted on the top of the base, and a vibrating hammer is mounted on the bottom of the machine head;
[0008] Both sides of the top of the base are fixedly connected with fixed rods, and the two fixed rods are slidably connected with movable rings, and the movable rings are fixedly connected with a bracket. A pressure ring is rotatably connected between the two brackets, and the top and bottom ends of the pressure ring are respectively provided with a lower card slot and an upper card slot. One side of the bracket is fixedly connected with a locking plate, and the pressure ring and the locking plate are fixedly connected by a locking column.
[0009] Preferably, the middle portion of the fixed rod is fixedly connected to a sliding rod, the bottom end of the fixed rod is rotatably connected to a rotating tube, an inclined groove is provided on the surface of the rotating tube, and the inclined groove is slidably connected to the sliding rod.
[0010] Preferably, the rotating tube is located below the movable ring, and the rotating tube is fixedly connected to a handle.
[0011] Preferably, a clamping block is installed on the top end of the fixing rod, and the clamping block and the movable ring are elastically connected via a spring.
[0012] Preferably, three sliding grooves are provided at the top of the base, and the three sliding grooves are all slidably connected to the limiting columns, and the bottom end of the limiting columns is threadedly connected to a fixing nut.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] 1. The upper and lower surfaces of the pressure ring of the utility model are provided with card slots. When fixing the test piece, the top test piece is locked through the card slot to prevent the top test piece from shifting horizontally. At the same time, the pressure ring can be turned upside down to fix test pieces of different diameters. The utility model provides stability when fixing the test piece and is safer to use.
[0015] 2. The utility model uses three limit columns to limit the stacked specimens. When in use, several specimens are usually stacked for testing. After the top of the specimen is fixed by a pressure ring, the three limit columns are pushed inward so that the limit columns are tightly attached to the side of the specimen. The three limit columns are then fixed by fixing nuts, so that the specimen below is not displaced during the test, thereby further improving the safety during the test.
[0016] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application so that it can be implemented in accordance with the contents of the specification, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following is a detailed description of the preferred embodiment of the present application in conjunction with the accompanying drawings.
[0017] Based on the detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without inventive work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.
[0019] Figure 1 It is a structural diagram of the utility model;
[0020] Figure 2This is a schematic structural diagram of the medium pressure ring of the utility model;
[0021] Figure 3 for Figure 1 Enlarged view of point A.
[0022] In the figure: 1. Base; 2. Machine head; 3. Vibrating hammer; 4. Limiting column; 5. Pressure ring; 6. Bracket; 7. Lower slot; 8. Upper slot; 9. Locking plate; 10. Locking column; 11. Slide groove; 12. Fixing nut; 13. Handle; 14. Slide rod; 15. Fixing rod; 16. Inclined groove; 17. Rotating tube; 18. Spring; 19. Movable ring. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. In the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures has been omitted in the embodiments.
[0024] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.
[0025] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and subsequent associated objects are in an "or" relationship.
[0026] It should also be noted that, in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprises," or any other variations thereof are intended to cover non-exclusive inclusion.
[0027] See also Figure 1-3The present invention provides a technical solution of a Marshall electric compactor with high safety: comprising a base 1, a machine head 2 is mounted on the top of the base 1, and a vibrating hammer 3 is mounted on the bottom of the machine head 2;
[0028] Both sides of the top of the base 1 are fixedly connected with fixed rods 15, and the two fixed rods 15 are slidably connected with movable rings 19. The movable ring 19 is fixedly connected with a bracket 6. A pressure ring 5 is rotatably connected between the two brackets 6. The top and bottom ends of the pressure ring 5 are respectively provided with a lower card slot 7 and an upper card slot 8. The diameters of the lower card slot 7 and the upper card slot 8 are different. The lower card slot 7 and the upper card slot 8 correspond to specimens of different sizes. A locking plate 9 is fixedly connected to one side of the bracket 6, and the pressure ring 5 and the locking plate 9 are fixedly connected by a locking column 10.
[0029] The locking column 10 can be inserted and removed, and the pressure ring 5 can be rotated when it is pulled out. For samples of different sizes, lower card slots 7 or upper card slots 8 of different sizes are selected to limit the side of the top sample.
[0030] The middle portion of the fixed rod 15 is fixedly connected to the slide rod 14. The bottom end of the fixed rod 15 is rotatably connected to a rotating tube 17. The surface of the rotating tube 17 is provided with an inclined groove 16, which is slidably connected to the slide rod 14. The rotating tube 17 is located below the movable ring 19 and is fixedly connected to the handle 13. The top end of the fixed rod 15 is equipped with a clamping block, which is elastically connected to the movable ring 19 via a spring 18.
[0031] In this embodiment, the sample stack is first placed on the top of the base 1, and then the two handles 13 are held by both hands at the same time, and then the handles 13 are pushed outward at the same time. At this time, the rotating tube 13 rotates. When the rotating tube 13 rotates, the rotating tube 13 moves downward due to the provision of the inclined groove 16 and the slide rod 14. Since the spring 18 generates downward pressure on the movable ring 19, and the bottom end of the movable ring 19 loses the support of the rotating tube 13, the movable ring 19 drives the pressure ring 5 to move downward through the bracket 6, thereby pressing the top of the sample downward to fix the sample.
[0032] Three sliding grooves 11 are provided at the top of the base 1 , and the three sliding grooves 11 are all slidably connected to the limiting pillars 4 , and the bottom ends of the limiting pillars 4 are threadedly connected to the fixing nuts 12 .
[0033] In this embodiment, when in use, several specimens are usually stacked up for testing. After the top of the specimen is fixed by the pressure ring 5, the three limit columns 4 are pushed inward so that the limit columns 4 are tightly attached to the side of the specimen. The three limit columns 4 are then fixed by the fixing nuts 12, so that the specimen below is displaced during the test, thereby further improving the safety during the test.
[0034] When in use, first, different sizes of card slots are selected for samples of different sizes. The locking column 10 can be inserted and removed. The pressure ring 5 can be rotated when it is pulled out. For samples of different sizes, different sizes of lower card slots 7 or upper card slots 8 are selected to limit the sides of the top sample. Then, the samples are stacked and placed on the top of the base 1. Then, both hands are held at the same time with the two handles 13, and the handles 13 are simultaneously pushed outwards. At this time, the rotating tube 13 rotates. When the rotating tube 13 rotates, due to the provision of the inclined slot 16 and the slide rod 14, the rotating tube 13 is rotated. The movable ring 19 moves downward, and the spring 18 generates downward pressure on the movable ring 19, and the bottom end of the movable ring 19 loses the support of the rotating tube 13. The movable ring 19 drives the pressure ring 5 to move downward through the bracket 6, and then presses the top of the sample downward to fix the sample. After the top of the sample is fixed by the pressure ring 5, the three limit columns 4 are pushed inward so that the limit columns 4 are close to the side of the sample, and then the three limit columns 4 are fixed by the fixing nuts 12, so that the sample below is placed in a position to be displaced during the test, thereby further improving the safety during the test.
[0035] The above description is merely a preferred embodiment of the present invention and does not limit the scope of protection of the present invention. Those skilled in the art will appreciate that the present invention is susceptible to various modifications and variations. Any variation, modification, replacement, integration, or parameter change to these embodiments, which falls within the spirit and principles of the present invention and achieves the same functionality through conventional substitutions, without departing from the principles and spirit of the present invention, falls within the scope of protection of the present invention.
Claims
1. A highly safe Marshall electric compactor, characterized by: It comprises a base (1), a machine head (2) is mounted on the top end of the base (1), and a vibrating hammer (3) is mounted on the bottom end of the machine head (2); Both sides of the top of the base (1) are fixedly connected with fixed rods (15), and the two fixed rods (15) are slidably connected with movable rings (19), and the movable rings (19) are fixedly connected with a bracket (6). A pressure ring (5) is rotatably connected between the two brackets (6), and the top and bottom ends of the pressure ring (5) are respectively provided with a lower card slot (7) and an upper card slot (8). One side of the bracket (6) is fixedly connected with a locking plate (9), and the pressure ring (5) and the locking plate (9) are fixedly connected via a locking column (10); The middle of the fixed rod (15) is fixedly connected to the sliding rod (14), and the bottom end of the fixed rod (15) is rotatably connected to the rotating tube (17). The surface of the rotating tube (17) is provided with an inclined groove (16), and the inclined groove (16) is slidably connected to the sliding rod (14).
2. A highly safe Marshall electric compactor according to claim 1, characterized in that: The rotating tube (17) is located below the movable ring (19), and the rotating tube (17) is fixedly connected to a handle (13).
3. A highly safe Marshall electric compactor as claimed in claim 2, characterized in that: A clamping block is installed at the top end of the fixed rod (15), and the clamping block and the movable ring (19) are elastically connected via a spring (18).
4. A highly safe Marshall electric compactor as claimed in claim 3, characterized in that: Three sliding grooves (11) are provided at the top of the base (1), and the three sliding grooves (11) are all slidably connected to the limiting column (4), and the bottom end of the limiting column (4) is threadedly connected to a fixing nut (12).