Mechanism convenient to replace and concrete plane grinding machine

Abstract

The utility model relates to the technical field of pipeline reinforcement, in particular to a mechanism convenient to replace and a concrete plane grinding machine, which comprises a turntable and a grinding disc, the grinding disc is driven by the rotation of the turntable to grind a concrete plane, and the grinding disc can be detached. The rotating disc comprises an unlocking piece and a lock pile which are arranged in the rotating disc, and the unlocking piece acts to control the lock pile to move. The millstone comprises a positioning piece in self-locking fit with the lock pile; the grinding disc is located below the rotary disc and controlled by the rotary disc to rotate, the lock pile is used for positioning the grinding disc, the positioning piece is used for positioning the lock pile, and then mutual locking is achieved, and stability is effectively provided. A worker firstly shrinks the lock pile by pressing the unlocking piece, then the grinding disc is installed on the rotating disc, the unlocking piece is loosened at the moment, the lock pile rebounds at the moment, the lock pile and the positioning piece are in a locking state, and installation is completed at the moment; when unlocking is needed, locking between the lock pile and the positioning piece can be contacted only by deeply pressing the unlocking piece.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete surface grinding, in particular to a convenient replacement mechanism and a concrete surface grinding machine. Background Art

[0002] With the rapid development of the construction industry, the requirements for the flatness and aesthetics of concrete floors are getting higher and higher. As an important construction equipment, the concrete surface grinding machine is widely used in the grinding, polishing and other treatment processes of concrete floors. Traditional concrete surface grinding machines are usually equipped with fixed grinding discs, which need to be replaced after being worn for a period of time.

[0003] However, the process of replacing the grinding discs of traditional grinding machines is complex and requires professional personnel for disassembly and installation, which is time-consuming and laborious and affects the construction efficiency.

[0004] In view of the above problems, the present invention aims to provide a concrete surface grinding machine with a convenient replacement mechanism that is simple in structure and convenient to operate, so as to solve the deficiencies in the prior art. Summary of the Utility Model

[0005] The purpose of this part is to outline some aspects of the embodiments of the present utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and the title of the utility model of this application, to avoid obscuring the purpose of this part, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present utility model.

[0006] In view of the above-mentioned existing technical problem that the grinding discs are not easy to replace, the present utility model is proposed.

[0007] The purpose of the present utility model is to provide a convenient replacement mechanism, which aims to solve the problem of how to quickly and conveniently disassemble and assemble the grinding discs.

[0008] To solve the above technical problems, the present utility model provides the following technical solution: A convenient replacement mechanism, which includes a turntable, an unlocking member and a locking post arranged inside the turntable, and the movement of the locking post is controlled by the action of the unlocking member;

[0009] A grinding disc, which includes a positioning member that is self-locked and matched with the locking post;

[0010] The grinding disc is located below the turntable and is controlled by the turntable to rotate.

[0011] As a preferred scheme of the convenient replacement mechanism of the present utility model, wherein: the unlocking member includes a movable groove arranged on the turntable and a locking groove that communicates with the movable groove and extends towards the outer wall of the turntable, and the locking groove is annularly arranged along the turntable and the number is the same as that of the locking posts.

[0012] As a preferred embodiment of the easy replacement mechanism of the present utility model, the unlocking member further includes an unlocking ring fixedly connected to the turntable through a first spring. The unlocking ring includes an inner ring and an outer ring. The inner ring and the outer ring are fixedly connected to each other, and a plurality of abutting posts extending into the locking groove are annularly arranged on the inner ring. A trapezoidal post for controlling the movement of the positioning member is annularly arranged on the outer ring.

[0013] As a preferred embodiment of the easy replacement mechanism of the present utility model, the locking post is fixedly connected to the inner wall of the locking groove through a second spring. One end of the locking post is provided with an inclined surface that abuts and cooperates with the abutting post. A positioning groove is provided on the locking post, and the end of the locking post is wedge-shaped.

[0014] As a preferred embodiment of the easy replacement mechanism of the present utility model, the positioning member includes a fixing groove that fits into the locking post, and clamping posts arranged on both sides of the fixing groove. The clamping posts are fixedly connected to the inner wall of the fixing groove through a third spring. The clamping posts abut and cooperate with the locking post, and are also fitted into the positioning groove.

[0015] As a preferred embodiment of the easy replacement mechanism of the present utility model, an unlocking post extending to the outer wall of the grinding disc is provided on the clamping post. The unlocking post abuts and cooperates with the trapezoidal post, and the contact edges between the trapezoidal post and the unlocking post are both in wedge-shaped cooperation.

[0016] As a preferred embodiment of the easy replacement mechanism of the present utility model, the number of the abutting posts, the trapezoidal posts, and the clamping posts is the same.

[0017] The beneficial effect of the easy replacement mechanism of the present utility model is that through the cooperation of each component, the quick disassembly and assembly of the grinding disc can be effectively realized, which is convenient and fast, and improves the overall working efficiency.

[0018] Another object of the present utility model is to provide a concrete surface grinder, aiming to solve the problem of detecting whether cracks occur on the surface during grinding.

[0019] To solve the above technical problems, the present utility model further provides the following technical solution: a concrete surface grinder, which includes an easy replacement mechanism; and a power unit, including a motor fixedly connected to the turntable and an electric push rod fixedly connected to the motor.

[0020] A main body unit, including a protective shell arranged around the power unit and a support plate fixedly connected to the protective shell.

[0021] A detection unit, including a crack detector arranged on the protective shell and a buzzer electrically connected to the crack detector.

[0022] As a preferred embodiment of the concrete surface grinder of the present utility model, wherein: the output shaft of the motor is fixedly connected to the turntable.

[0023] As a preferred embodiment of the concrete surface grinder of the present utility model, wherein: universal wheels are provided at the bottom of the support plate

[0024] The beneficial effect of the concrete surface grinder of the present utility model is that it can effectively detect plane cracks during work according to the set detection threshold and promptly remind the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0026] Figure 1 It is the scene diagram in the present utility model.

[0027] Figure 2 It is the structure diagram of the replacement mechanism in the present utility model.

[0028] Figure 3 It is the exploded view of the replacement mechanism in the present utility model.

[0029] Figure 4 It is the cross-sectional view of the grinding disc in the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will give a detailed description of the specific embodiments of the present utility model with reference to the accompanying drawings of the specification.

[0031] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0032] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present utility model. The "in one embodiment" that appears in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that mutually excludes other embodiments.

[0033] Example 1

[0034] Reference Figure 1 and Figure 2 This is the first embodiment of the present utility model. This embodiment provides a mechanism facilitating replacement, including a turntable 100 and a grinding disc 200. The rotation of the turntable 100 drives the grinding disc 200 to polish the concrete surface, and the grinding disc 200 can be disassembled.

[0035] Furthermore, the turntable 100 includes an unlocking member 101 and a locking post 102 disposed inside the turntable 100. The movement of the unlocking member 101 controls the movement of the locking post 102, and the disassembly and assembly of the grinding disc 200 are controlled by the setting of the unlocking member 101.

[0036] Preferably, the grinding disc 200 includes a positioning member 201 that is self-locked with the locking post 102; the grinding disc 200 is located below the turntable 100 and is driven to rotate by the turntable 100. The locking post 102 is used to position the grinding disc 200, while the positioning member 201 positions the locking post 102, thereby achieving mutual locking and effectively providing stability.

[0037] Usage process: The staff first contracts the locking post 102 by pressing the unlocking member 101, and then installs the grinding disc 200 on the turntable 100. At this time, the unlocking member 101 is released, and then the locking post 102 rebounds, and a locking state is formed between the locking post 102 and the positioning member 201, and the installation is completed at this time; when unlocking is required, only need to deeply press the unlocking member 101, then the locking between the locking post 102 and the positioning member 201 can be released.

[0038] Example 2

[0039] Reference Figures 1 to 4 This is the second embodiment of the present utility model. Different from the previous embodiment, it further includes that the unlocking member 101 includes a movable groove 101a provided on the turntable 100 and a locking groove 101b communicating with the movable groove 101a and extending towards the outer wall of the turntable 100. The locking groove 101b is annularly arranged along the turntable 100 and the number is the same as that of the locking posts 102.

[0040] Specifically, the unlocking member 101 further includes an unlocking ring 101d fixedly connected to the turntable 100 through a first spring 101c. The unlocking ring 101d includes an inner ring 101d-1 and an outer ring 101d-2. The inner ring 101d-1 and the outer ring 101d-2 are fixedly connected, and a plurality of abutting posts 101d-3 extending to the locking groove 101b are annularly arranged on the inner ring 101d-1, and a trapezoidal post 101d-4 for controlling the movement of the positioning member 201 is annularly arranged on the outer ring 101d-2.

[0041] Preferably, the locking post 102 is fixedly connected to the inner wall of the locking groove 101b through the second spring 102a. One end of the locking post 102 is provided with an inclined surface 102b that abuts and cooperates with the abutting post 101d-3. The locking post 102 is provided with a positioning groove 102c and the end of the locking post 102 is wedge-shaped.

[0042] Preferably, the positioning member 201 includes a fixing groove 201a that fits into the locking post 102, and clamping posts 201b provided on both sides of the fixing groove 201a. The clamping posts 201b are fixedly connected to the inner wall of the fixing groove 201a through the third spring 201c. The clamping posts 201b abut and cooperate with the locking post 102 and are fitted into the positioning groove 102c.

[0043] Preferably, the clamping post 201b is provided with an unlocking post 201b-1 that extends to the outer wall of the grinding disc 200. The unlocking post 201b-1 abuts and cooperates with the trapezoidal post 101d-4. The contact edges between the trapezoidal post 101d-4 and the unlocking post 201b-1 are both wedge-shaped.

[0044] Preferably, the number of the abutting posts 101d-3, the trapezoidal posts 101d-4, and the clamping posts 201b is the same.

[0045] During the use process: The staff first gently presses the unlocking ring 101d, so that although the unlocking ring 101d descends, the amplitude is not large. Only the locking post 102 needs to be slightly contracted inward until the locking post 102 does not protrude from the locking groove 101b. Then, the staff presses the grinding disc 200 against the turntable 100 from bottom to top. At this time, the unlocking ring 101d is released. Then, with the rebound of the locking post 102, it will fit with the grinding disc 200. Since the locking post 102 cannot be directly inserted into the fixing groove 201a at the beginning, at this time, the grinding disc 200 can be rotated to a certain extent until the locking post 102 is inserted into the fixing groove 201a by the resilience of the second spring 102a;

[0046] When the locking post 102 springs into the fixing groove 201a, since the end of the locking post 102 and the clamping post 201b abut against each other, the third spring 201c will drive the clamping post 201b to contract towards both sides of the fixing groove 201a. Similarly, when the locking post 102 is still moving deeper into the fixing groove 201a, the clamping post 201b is first in a contracted state until the locking post 102 moves to a position where the positioning groove 102c cooperates with the clamping post 201b. At this time, the clamping post 201b will rebound and snap into the positioning groove 102c, and then mutual locking is formed;

[0047] When unlocking is required, the staff only needs to deeply press the unlocking ring 101d until the trapezoidal pile 101d-4 abuts against the unlocking pile 201b-1. As the trapezoidal pile 101d-4 is pressed down, it will also drive the clamping pile 201b to move towards both sides of the fixing groove 201a until the clamping pile 201b disengages from the positioning groove 102c. At the same time, as the unlocking yellow 101d is pressed, the abutting column 101d-3 on the inner ring 101d-1 will continuously abut against the inclined surface of the locking pile 102, causing the locking pile 102 to disengage from the fixing groove 201a. At this time, all the limits are released, and the staff can remove the old grinding disc 200 and replace it with a new grinding disc 200 according to the above steps.

[0048] Embodiment 3

[0049] Refer to Figure 1 , which is the third embodiment of the present utility model. This embodiment further provides a concrete surface grinding machine. It includes a power unit 300, which includes a motor 301 fixedly connected to the turntable 100 and an electric push rod 302 fixedly connected to the motor 301. The motor 301 can adopt the Z4-112A model, and the electric push rod 302 can adopt the DTZ300 model. By controlling the lifting of the electric push rod 302, the position of the motor 301 is controlled, and then the position state of the grinding disc 200 is controlled. When grinding the concrete surface is required, the electric push rod 302 is controlled to descend so that the grinding disc 200 contacts the surface. In the non-working state, the electric push rod 302 is controlled to retract.

[0050] The main body unit 400 includes a protective shell 401 arranged outside the power unit 300 and a support plate 402 fixedly connected to the protective shell 401;

[0051] The detection unit 500 includes a crack detector 501 arranged on the protective shell 401 and a buzzer 502 electrically connected to the crack detector 501. The crack detector 501 can adopt the VK930 model, and at the same time, the buzzer 502 can adopt the ABT-441-RC model.

[0052] Furthermore, the output shaft of the motor 301 is fixedly connected to the turntable 100.

[0053] Preferably, universal wheels 402a are arranged at the bottom of the support plate 402, and a push rod is also arranged on the support plate 402 for easy pushing by the staff.

[0054] Usage process: When grinding is required, first control the electric push rod 302 to descend until the grinding disc 200 contacts the concrete surface. Then the staff pushes the whole device to move and grind at the same time. When the crack detector 501 detects a crack during grinding, it will send a signal to make the buzzer 502 alarm to prevent secondary damage and repair it in time.

[0055] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0056] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present utility model or those features that are not relevant to the implementation of the present utility model).

[0057] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, manufacturing and production.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and all of them should be covered by the scope of the claims of the present utility model.

Claims

1. A convenient replacement mechanism, characterized in that: include, A rotating disk (100) comprising an unlocking member (101) and a locking post (102) arranged inside the rotating disk (100), wherein the movement of the unlocking member (101) controls the movement of the locking post (102); The grinding disc (200) comprises a positioning piece (201) that self-locks with the locking pile (102); The grinding disc (200) is located below the rotating disc (100) and is controlled to rotate by the rotating disc (100); The unlocking member (101) comprises a movable groove (101a) arranged on the rotating disk (100) and a locking groove (101b) communicating with the movable groove (101a) and extending toward the outer wall of the rotating disk (100); the locking grooves (101b) are arranged in a ring shape along the rotating disk (100) and the number of the locking grooves (101b) is the same as that of the locking piles (102); The unlocking member (101) further comprises an unlocking ring (101d) fixedly connected to the rotating disk (100) via a first spring (101c), the unlocking ring (101d) comprising an inner ring (101d-1) and an outer ring (101d-2), the inner ring (101d-1) and the outer ring (101d-2) being fixedly connected, and the inner ring (101d-1) is provided with a plurality of abutment columns (101d-3) extending into the locking groove (101b) in an annular shape, and the outer ring (101d-2) is provided with a trapezoidal pile (101d-4) in an annular shape for controlling the movement of the positioning member (201).

2. The easy-to-change mechanism according to claim 1, characterized in that: The locking post (102) is fixedly connected to the inner wall of the locking groove (101b) via a second spring (102a); one end of the locking post (102) is provided with an inclined surface (102b) that abuts against the abutment column (101d-3); a positioning groove (102c) is provided on the locking post (102), and the end of the locking post (102) is in a wedge shape.

3. The easy-to-change mechanism according to claim 2, characterized in that: The positioning member (201) comprises a fixing groove (201a) embedded in the locking pile (102), and clamping piles (201b) arranged on both sides of the fixing groove (201a), the clamping piles (201b) being fixedly connected to the inner wall of the fixing groove (201a) via a third spring (201c), the clamping piles (201b) being in abutment with the locking pile (102) and embedded in the positioning groove (102c).

4. The easy-to-change mechanism according to claim 3, characterized in that: The locking pile (201b) is provided with an unlocking pile (201b-1) extending to the outer wall of the grinding disc (200), the unlocking pile (201b-1) is in abutment with the trapezoidal pile (101d-4), and the contact edges between the trapezoidal pile (101d-4) and the unlocking pile (201b-1) are both wedge-shaped.

5. The easy-to-change mechanism according to claim 4, characterized in that: The numbers of the abutment columns (101d-3), the trapezoidal piles (101d-4) and the clamping piles (201b) are consistent.

6. A concrete surface grinding machine, characterized in that: The method comprises the easy-to-change mechanism according to any one of claims 1 to 5; as well as A power unit (300) comprising a motor (301) fixedly connected to the rotating disk (100) and an electric push rod (302) fixedly connected to the motor (301); A main body unit (400), comprising a protective shell (401) arranged on the periphery of the power unit (300) and a support plate (402) fixedly connected to the protective shell (401); The detection unit (500) comprises a crack detector (501) arranged on the protective shell (401) and a buzzer (502) electrically connected to the crack detector (501).

7. The concrete surface grinding machine according to claim 6, characterized in that: The output shaft of the motor (301) is fixedly connected to the rotating disk (100).

8. The concrete surface grinding machine according to claim 7, characterized in that: Universal wheels (402a) are provided at the bottom of the support plate (402).

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