Counterweight locking mechanism of floor grinding machine

Abstract

The utility model relates to the technical field of floor grinding machines, and provides a counter weight locking mechanism of a floor grinding machine, the counter weight locking mechanism is arranged on the inner side of a counter weight block and comprises a pull rod, a pull rod base, a connecting rod, a connecting rod shaft and a positioning pin, a groove hole is formed in the counter weight block, one end of the pull rod penetrates through the groove hole to be located on the outer side of the counter weight block, and the other end of the pull rod is connected with the positioning pin. One side of the inner side pull rod is movably connected with a pull rod base installed at one end of a groove hole in the inner side of the balancing weight, the other side of the inner side pull rod is movably connected with a connecting rod, the connecting rod is connected with one end of a connecting rod shaft, and the other end of the connecting rod shaft is connected with one end of a positioning pin. And the other end of the positioning pin is matched with a positioning pin base arranged at a corresponding position on the floor grinding machine. The locking mechanism is arranged on the inner side of the balancing weight, so that the locking mechanism and the floor grinding machine are locked up and down, the situation that the floor grinding machine shakes left and right is avoided in the swinging process, the side face positioning anti-tripping function is achieved, and use safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a floor grinding machine technical field, concretely relates to a floor grinding machine counterweight locking mechanism. BACKGROUND

[0002] Floor grinding machine is mainly used for the grinding treatment of ground, and it can effectively polish terrazzo, concrete surface layer, epoxy mortar layer and old epoxy ground. Generally, the floor grinding machine is equipped with a counterweight block, and the main function of the counterweight block is to increase the weight of the floor grinding machine, so as to exert sufficient pressure during the grinding process and ensure the grinding effect. By adding or removing the counterweight block, the weight of the machine can be adjusted to adapt to different grinding requirements.

[0003] The existing counterweight block is installed on both sides of the floor grinding machine, and one end thereof is hinged to the floor grinding machine through a connecting arm, so that the counterweight block can be conveniently added or removed, and the counterweight block is locked after being moved through a locking mechanism. The existing locking mechanism adopts a horizontal locking mode, that is, a spring pin is installed on the counterweight block, and the spring pin is locked in cooperation with a pin hole provided at a corresponding position on the floor grinding machine. However, there is a gap between the pin shaft and the through hole, and the counterweight block may swing during the working process, which may cause the spring pin to be disconnected from the floor grinding machine. SUMMARY

[0004] In view of the problems in the background art, the utility model develops a floor grinding machine counterweight locking mechanism, which realizes the side positioning and anti-disconnection function of the counterweight.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows:

[0006] A floor grinding machine counterweight locking mechanism is arranged on the inner side of the counterweight block and comprises a pull rod, a pull rod base, a connecting rod, a connecting rod shaft and a positioning pin. A recess hole is formed in the counterweight block, one end of the pull rod passes through the recess hole and is located on the outer side of the counterweight block, and the other end is located on the inner side of the counterweight block. One side of the inner side of the pull rod is movably connected to the pull rod base arranged at one end of the recess hole on the inner side of the counterweight block, and the other side is movably connected to the connecting rod. The connecting rod is connected to one end of the connecting rod shaft, and the other end of the connecting rod shaft is connected to one end of the positioning pin. The other end of the positioning pin is matched with a positioning pin base arranged at a corresponding position on the floor grinding machine.

[0007] Preferably, one side of the pull rod is arranged in the recess of the pull rod base, the connecting rod is connected to the connecting rod base through a positioning bolt, and the pull rod can rotate around the positioning bolt.

[0008] Preferably, the connecting rod has two connecting rods arranged on the upper and lower sides of the pull rod, respectively, and the two connecting rods are connected through a positioning bolt two, and the pull rod can rotate around the positioning bolt two.

[0009] Preferably, one end of the connecting rod shaft is located between the upper and lower connecting rods and is connected through three positioning bolts.

[0010] Preferably, an indexing pin positioning base is installed at the other end of the inner groove hole of the counterweight block, and an indexing pin assembly is installed on the inner side of the indexing pin positioning base. The other end of the positioning pin passes through the indexing pin assembly and the indexing pin positioning base in sequence and cooperates with the positioning pin base at the corresponding position on the floor grinder.

[0011] Preferably, the other end surface of the positioning pin is a slope.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model provides a locking mechanism on the inner side of the counterweight block. By pulling the pull rod, the positioning pin will be linked and telescoped to be positioned within the aperture of the positioning pin base, so that the locking mechanism and the floor grinder are locked up and down. There will be no left and right shaking during the swinging process, and the side positioning anti-disengagement function is realized to ensure safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the inner structure of the counterweight block of the utility model.

[0015] Figure 2 This is a schematic diagram of the outer structure of the counterweight block of the utility model.

[0016] Figure 3 This is a schematic diagram of the working state of the utility model Figure 1 .

[0017] Figure 4 This is a schematic diagram of the working state of the utility model Figure 2 .

[0018] In the figure: 1. Connecting arm, 2. Tie rod base, 3. Locating bolt, 4. Tie rod, 5. Connecting rod, 6. Connecting rod shaft, 7. Indexing pin assembly, 8. Indexing pin locating base, 9. Locating pin base, 10. Counterweight, 11. Locating pin. DETAILED DESCRIPTION

[0019] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0020] like Figure 1 and Figure 2As shown, the utility model discloses a floor grinder counterweight locking mechanism, and the counterweight includes a connecting arm 1 and a counterweight block 10 in an integral structure, the locking mechanism is arranged on the inner side of the counterweight block 10, and includes a pull rod 4, a pull rod base 2, a connecting rod 5, a connecting rod shaft 6, a index pin assembly 7, a index pin positioning base 8, a positioning pin 11 and a positioning pin base 9.

[0021] The counterweight block 10 is provided with a groove hole, one end of the pull rod 4 is located outside the counterweight block 10 (as shown in Figure 2 ), and the other end is located inside the counterweight block, one side of the pull rod 4 is movably connected to the pull rod base 2 arranged at one end of the groove hole on the inner side of the counterweight block through a positioning bolt 3, and the other side is movably connected to the connecting rod 5; the connecting rod 5 is provided with the pull rod between the upper and lower ends, the connecting rod shaft 6 is arranged between the other ends, and the two ends are connected through the positioning bolt respectively; the connecting rod shaft 6 is connected to the positioning pin 11, and the positioning pin 11 is matched with the positioning hole of the positioning pin base 9 arranged at the corresponding position on the floor grinder through the index pin assembly 7 and the index pin positioning base 8.

[0022] Specific operation process:

[0023] As shown in Figure 3 and Figure 4 , when the counterweight block on one side or both sides of the floor grinder is removed according to the working requirement, the pull rod 4 is pulled by hand, the connecting rod 5 is moved into the groove hole under the action of the pull rod 4, the connecting rod shaft 6 is moved backward, the positioning pin is retracted backward and separated from the positioning pin base 9, the pull rod 4 is loosened after being separated, the spring inside the positioning pin is in a compressed state when the positioning pin is pressed and pulled, the positioning pin is automatically bounced out and returned to the initial position after being loosened, the counterweight connecting arm 1 is rotated, the counterweight block is rotated upward to the corresponding positioning pin base position on the upper part of the floor grinder, the inclined end surface of the positioning pin is automatically entered into the positioning hole of the positioning pin base under the action of the force, and the locking is realized. Similarly, when the counterweight block needs to be added, the pull rod 4 is pulled by hand, the connecting rod 5 is moved into the groove hole under the action of the pull rod 4, the connecting rod shaft 6 is moved backward, the positioning pin is retracted backward and separated from the positioning pin base 9, the pull rod 4 is loosened after being separated, the positioning pin is bounced out and returned to the initial position, and then the counterweight connecting arm 1 is rotated, so that the counterweight block is rotated downward to the corresponding positioning pin base position on the lower part of the floor grinder to be locked.

[0024] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A counterweight locking mechanism for a floor grinder, characterized by: The counterweight locking mechanism is arranged on the inner side of the counterweight block, and includes a pull rod, a pull rod base, a connecting rod, a connecting rod shaft and a positioning pin. A groove hole is opened on the counterweight block, one end of the pull rod passes through the groove hole and is located on the outside of the counterweight block, and the other end is located on the inside of the counterweight block. One side of the inner pull rod is movably connected to the pull rod base installed at one end of the inner groove hole of the counterweight block, and the other side is movably connected to the connecting rod. The connecting rod is connected to one end of the connecting rod shaft, and the other end of the connecting rod shaft is connected to one end of the positioning pin, and the other end of the positioning pin cooperates with the positioning pin base arranged at the corresponding position on the floor grinder.

2. A floor grinding machine counterweight locking mechanism according to claim 1, characterized in that: One side of the pull rod is installed in the groove of the pull rod base, and the connecting rod is connected to the connecting rod base through a positioning bolt, and the pull rod can rotate around the positioning bolt.

3. A counterweight locking mechanism for a floor grinder according to claim 1 or 2, characterized in that: There are two connecting rods, which are respectively arranged on the upper and lower sides of the pull rod and are connected through two positioning bolts. The pull rod can rotate around the two positioning bolts.

4. A counterweight locking mechanism for a floor grinder according to claim 3, characterized in that: One end of the connecting rod shaft is located between the upper and lower connecting rods and is connected through three positioning bolts.

5. The counterweight locking mechanism for a floor grinder according to claim 1, characterized in that: An indexing pin positioning base is installed at the other end of the inner groove hole of the counterweight block, and an indexing pin assembly is installed inside the indexing pin positioning base. The other end of the positioning pin passes through the indexing pin assembly and the indexing pin positioning base in sequence and cooperates with the positioning pin base at the corresponding position on the floor grinder.

6. A counterweight locking mechanism for a floor grinder according to claim 1, characterized in that: The other end surface of the positioning pin is an inclined surface.

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