Automatic jarring device for compacting density of construction sand
By using a reciprocating swing motor to drive the transmission arm and connecting rod, combined with a digital display controller, the problem of unstable compaction density of sand in existing technologies has been solved, achieving automatic counting and stable shaking effect.
Patent Information
- Application Number
- CN202521433148.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-09
AI Technical Summary
Existing methods for compacting sand rely on manual operation, which suffers from issues such as errors in the number of passes, uneven force, and the need for two people to work together, making it difficult to achieve stability and automatic counting.
The system uses a reciprocating swing motor to drive the transmission arm and connecting rod, and uses round steel to support the capacity cylinder to achieve automatic tumbling. Combined with a digital display controller, it collects and displays the number of tumblings to ensure counting accuracy and stability.
It achieves automatic counting, labor-saving and stable tumbling effect, reduces human error, and ensures the accuracy and consistency of the number of tumbling.
Smart Images

Figure CN224682025U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction engineering technology, specifically to an automatic impact device for determining the compaction density of construction sand. Background Technology
[0002] The existing method for compacting sand involves placing a steel bar under the container and then manually tapping it 25 times to the left and 25 times to the right.
[0003] There are some shortcomings in using manual tumbling during the process, mainly: since it requires 25 tumblings to the left and right, and the left and right tumbling action of the measuring cylinder usually relies on inertia and the number of tumblings is large, errors in the number of tumblings are easy to occur when tumbling manually. Moreover, this operation usually requires two people to work together, and uneven force may occur during the tumbling process, resulting in the tumbling result not matching the original intention.
[0004] The relevant patent, such as application number 201721003146.7, entitled "A Fixing Device for a Capacitor Cylinder for Aggregate Density Testing," is a typical example of this type of device. Although it can keep the capacity cylinder in the middle balanced by adjusting the left and right spacing, it is still limited by the problems mentioned above and is difficult to overcome.
[0005] Those skilled in the art urgently need a labor-saving, stable device capable of automatic counting to ensure the quality of the impact. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing an automatic impact device for determining the compaction density of construction sand that is capable of automatic counting, electric drive, labor-saving operation, and stability.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is: an automatic impact device for determining the compaction density of construction sand, comprising a digital display controller, a reciprocating swing motor, a transmission arm, a connecting rod, a capacity cylinder, and round steel. The output shaft of the reciprocating rocking motor is connected to one end of the transmission arm and is used to drive the transmission arm to perform reciprocating rocking motion. The other end of the transmission arm is hinged to one end of the connecting rod; The top of the capacity cylinder is connected to a vertical rod, and the top end of the vertical rod is hinged to the other end of the connecting rod. The round steel bar is an independent structure used to support the bottom center of the capacity cylinder, making rolling contact with the capacity cylinder and providing support for the capacity cylinder to swing and bounce from side to side. The digital display controller is used to control the working status of the reciprocating rocking motor and to collect the working parameters of the reciprocating rocking motor to obtain and display the number of bounces.
[0008] Preferably, an encoder is installed on the shaft of the reciprocating rocking motor, and the digital display controller obtains the number of revolutions of the reciprocating rocking motor through the encoder, thereby obtaining the number of bounces.
[0009] Preferably, the measuring cylinder includes a standard cylinder and a sleeve box that is fitted over the standard cylinder and has an open top. The sleeve box is used to fix the standard cylinder, and the upright is fixed to the top of the sleeve box. The upright is connected to the measuring cylinder through the sleeve box.
[0010] Preferably, the two ends of the round steel are mounted on a horizontal support plate by bearings, so that the round steel can rotate freely.
[0011] Preferably, the bottom center of the sleeve is provided with an arc groove that is compatible with the round steel.
[0012] Preferably, the connecting rod is a two-section connecting rod, and the sections are connected by threads to achieve length adjustment.
[0013] Preferably, the connecting rod is made of stainless steel.
[0014] Preferably, the casing is made of sheet metal, and its inner wall is in close contact with the outer wall of the capacity cylinder.
[0015] Preferably, the upright is made of stainless steel strip, and the lower end of the upright is welded and fixed to one side wall of the casing.
[0016] Preferably, the standard cylinder is a 1L standard capacity cylinder.
[0017] This utility model has substantial features and advancements compared to existing technologies. Specifically, this utility model uses the swinging motion of a reciprocating rocking motor, which drives the capacity cylinder to swing based on round steel through a transmission arm and connecting rod, thus achieving the purpose of saving effort. Moreover, since the driving force of the periodic reciprocating rocking motor is basically stable, the impact effect can be guaranteed to be stable. At the same time, the working parameters of the reciprocating rocking motor are collected by a digital display controller to obtain the number of revolutions, and then the number of revolutions is converted into the number of impacts for display, eliminating the need for manual counting and ensuring the accuracy of the number of impacts. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of an automatic impact device for determining the compaction density of construction sand according to this utility model.
[0019] In the diagram: 1. Reciprocating rocking motor; 2. Transmission arm; 3. Connecting rod 3; 4. Capacity cylinder; 5. Casing; 6. Round steel; 7. Digital display controller. Detailed Implementation
[0020] The technical solution of this utility model will be further described in detail below through specific embodiments.
[0021] like Figure 1 As shown, an automatic impact device for compacting the density of construction sand includes a digital display controller 7, a reciprocating swing motor 1, a transmission arm 2, a connecting rod 3, a capacity cylinder 4, and a round steel bar 6.
[0022] The output shaft of the reciprocating rocking motor 1 is connected to one end of the transmission arm 2, which is used to drive the transmission arm 2 to perform reciprocating rocking motion. In this embodiment, the reciprocating rocking motor 1 adopts a 3429 type reciprocating motion rocking motor, and its power source is a 4058 type worm gear motor. The rocking motion mechanism is built with an L-shaped aluminum alloy bracket and ball bearings. One end of the rocking transmission arm on the motor is reserved with a mounting hole. The digital display controller adopts an HB961 intelligent dual digital display counter that can count and control the power switch. It can directly calculate the number of revolutions by reading its working parameter information, or it can obtain the number of revolutions by installing an encoder. According to the working principle of the reciprocating rocking single machine 1, the transmission arm 2 swings once for each rotation, which can be recorded as one tumbling action. Every two rotations, the transmission arm 2 swings twice and returns to the original position, which can be recorded as two tumbling actions.
[0023] The other end of the transmission arm 2 is hinged to one end of the connecting rod 3. The transmission arm 2 is made of a hard metal plate and is fixedly connected to the output shaft of the reciprocating swing motor. Its swing amplitude needs to be determined according to the working conditions.
[0024] In this embodiment, the connecting rod 3 is made of stainless steel strip with a width of 2cm, a thickness of 0.5mm, and a length of 40cm. Each end of the stainless steel strip has a pre-drilled mounting hole, and one end of the rod is connected to the swing transmission arm on the swing motor.
[0025] The top of the capacity cylinder 4 is connected to a vertical rod, and the top end of the vertical rod is hinged to the other end of the connecting rod 3 to transmit the swing force to the capacity cylinder 4.
[0026] The round steel 6 is an independent structure used to support the bottom center of the capacity cylinder 4, and rolls in contact with the capacity cylinder 4 to provide support for the capacity cylinder 4 to swing and bounce from side to side.
[0027] The digital display controller 7 is used to control the working state of the reciprocating rocking motor 1, and to collect the working parameters of the reciprocating rocking motor 1 to obtain and display the number of bounces.
[0028] Working principle explanation: After the working parameters of the reciprocating rocking motor 1 are set, it outputs a rocking motion. The transmission arm 2 amplifies the rocking motion and then drives the connecting rod 3 to move. The connecting rod 3 transmits the rocking motion to the capacity cylinder 4. The bottom end of the capacity cylinder 4 is supported by the round steel 6 and swings left and right around the round steel 6, thus realizing the execution of the tumbling action. The digital display controller collects the working parameters, converts them into the number of tumbling actions, and displays them for the reference of the staff.
[0029] To protect the measuring cylinder and make it easier to use with the device, the measuring cylinder 4 includes a standard cylinder and a sleeve 5 that is fitted over the standard cylinder and has an open top. The sleeve 5 is used to fix the standard cylinder. The upright is fixed to the top of the sleeve and the upright is connected to the measuring cylinder through the sleeve. The measuring cylinder is a 1L standard measuring cylinder.
[0030] Specifically, in this embodiment, the sleeve 5 is made of 0.3mm sheet metal and is a rectangular sleeve 17cm long, 11.6cm wide and 10cm high (made according to the outer dimensions of a 1L density cylinder). On the wide side, a stainless steel strip 2cm wide, 0.5mm thick and 30cm long is welded to the sleeve 10cm from the bottom to the top of the sleeve, leaving a 20cm reserved mounting hole and fixing it to one end of the connecting rod 3.
[0031] To ensure motion stability, the two ends of the round steel 6 are mounted on a horizontal support plate via bearings, so that the round steel 6 can rotate freely. Correspondingly, an arc groove adapted to the round steel is provided at the bottom center of the sleeve 5.
[0032] To provide adjustability, the link is at least a two-section link, with the sections connected by threads to achieve length adjustment.
[0033] Finally, it should be noted that: the preferred embodiments of this patent have been described in detail above, but this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. An automatic compaction device for determining the density of construction sand, characterized in that: Includes a digital display controller, a reciprocating swing motor, a transmission arm, a connecting rod, a capacity cylinder, and round steel bars; The output shaft of the reciprocating rocking motor is connected to one end of the transmission arm and is used to drive the transmission arm to perform reciprocating rocking motion. The other end of the transmission arm is hinged to one end of the connecting rod; The top of the capacity cylinder is connected to a vertical rod, and the top end of the vertical rod is hinged to the other end of the connecting rod. The round steel bar is an independent structure used to support the bottom center of the capacity cylinder, making rolling contact with the capacity cylinder and providing support for the capacity cylinder to swing and bounce from side to side. The digital display controller is used to control the working status of the reciprocating rocking motor and to collect the working parameters of the reciprocating rocking motor to obtain and display the number of bounces.
2. The automatic compaction device for construction sand according to claim 1, characterized in that: An encoder is installed on the shaft of the reciprocating rocking motor. The digital display controller obtains the number of revolutions of the reciprocating rocking motor through the encoder, and then obtains the number of bounces.
3. The automatic compaction device for construction sand according to claim 2, characterized in that: The measuring cylinder includes a standard cylinder and a sleeve box that is fitted over the standard cylinder and has an open top. The sleeve box is used to fix the standard cylinder. The upright is fixed to the top of the sleeve box and is connected to the measuring cylinder through the sleeve box.
4. The automatic compaction device for construction sand according to claim 3, characterized in that: The two ends of the round steel are mounted on a horizontal support plate by bearings, so that the round steel can rotate freely.
5. The automatic compaction device for construction sand according to claim 4, characterized in that: The bottom center of the housing is provided with an arc groove that is compatible with the round steel.
6. The automatic compaction device for construction sand according to claim 1, characterized in that: The connecting rod is a two-section connecting rod, and the sections are connected by threads to achieve length adjustment.
7. The automatic compaction device for construction sand according to claim 6, characterized in that: The connecting rod is made of stainless steel.
8. The automatic compaction device for construction sand according to claim 3, characterized in that: The casing is made of sheet metal, and its inner wall is in close contact with the outer wall of the measuring cylinder.
9. The automatic compaction device for construction sand according to claim 8, characterized in that: The upright is made of stainless steel strip, and the lower end of the upright is welded and fixed to one side wall of the casing.
10. The automatic compaction device for construction sand according to claim 9, characterized in that: The standard cylinder is a 1L standard capacity cylinder.
Citation Information
Patent Citations
Fixing device who gathers materials a density test capacity section of thick bamboo
CN207056614U