Mahjong machine control panel height adjusting assembly

Abstract

The utility model provides a mahjong machine control panel height adjusting assembly, and belongs to the field of mahjong machines. The problem that an existing control panel is poor in sliding stability is solved. The mahjong machine control panel height adjusting assembly comprises a hollow stand column and a center pipe vertically arranged in the stand column in a sliding mode, the upper end of the center pipe extends out of the stand column and is fixedly connected with a control panel, an outer threaded pipe is formed at the top of the stand column, the center pipe is sleeved with the outer threaded pipe, and the outer threaded pipe is in threaded connection with a top cap used for jacking up the control panel. A limiting structure used for limiting rotation of the top cap is detachably arranged between the top cap and the stand column. The mahjong machine control panel height adjusting assembly can enhance the sliding stability of the control panel.

Description

Technical Field

[0001] The utility model belongs to the field of entertainment equipment and relates to a mahjong machine, in particular to a height adjustment component of a mahjong machine control panel. Background Art

[0002] The mahjong machine control panel is an important part of the mahjong machine. It is usually located in the center or one side of the table top and is used to control various operations of the mahjong machine, such as shuffling, raising and lowering cards, etc.

[0003] The existing mahjong machine control panel mounting structure, such as a mid-lift mechanism of a mahjong machine disclosed in the China Patent Library (application number: 202020643047.0), includes a mid-lift motor, a mid-lift seat and a lifting rod, the lifting rod is slidably connected to the mid-lift seat, and also includes a fixing plate, the mid-lift motor is detachably connected to the fixing plate, and the fixing plate is detachably connected to the mid-lift seat. One end of the lifting rod connected to the control panel is provided with a connecting seat, which can move along the height direction of the lifting rod, and the connecting seat is used to fix the control panel; when the lifting rod drops to the bottom and the upper surface of the control panel is not level with the surface of the chassis body of the mahjong machine, the screw passing through the fixing hole can be manually removed first, so that the connecting seat can be threadedly connected to the lifting rod for height adjustment. When the height is adjusted to the right position (that is, the upper surface of the control panel is level with the surface of the chassis body of the mahjong machine), the screw is tightened again through the fixing hole so that the connecting seat is fixedly connected to the lifting rod again.

[0004] In the above-mentioned mid-lift mechanism, the control panel is screwed to the lifting rod through a connecting seat. Since the lifting rod in actual products is a tubular structure and the wall thickness is generally thin, it is easy to cause insufficient threaded engagement strength between the lifting rod and the connecting seat, affecting the sliding and positioning stability of the control panel. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the existing technology and to provide a mahjong machine control panel height adjustment component with stable structure.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a mahjong machine control panel height adjustment component, including a hollow column and a central tube vertically slidably arranged in the column, the upper end of the central tube extends out of the column and is fixedly connected to the control panel, and is characterized in that an externally threaded tube is formed on the top of the column, and the externally threaded tube is sleeved on the outside of the central tube, and a top cap for lifting the control panel is threadedly connected to the externally threaded tube, and a limiting structure for limiting the rotation of the top cap is detachably provided between the top cap and the column.

[0007] When in use, first remove the limiting structure, then rotate the top cap to adjust the position of the control panel. After the position adjustment is completed, reinstall the limiting structure to lock the top cap so that the top cap always remains in the state of supporting the control panel upward.

[0008] The top cap used to support the control panel upward is directly installed on the column, and the limiting structure used to lock the top cap is set between the top cap and the column. This can effectively enhance the locking strength of the top cap, ensure that the top cap always provides a reliable upward supporting force to the control panel, and enhance the structure and working stability of the mahjong machine.

[0009] In the aforementioned mahjong machine control panel height adjustment assembly, the mahjong machine includes a shuffling plate rotatably mounted on a column via a bearing. The bearing comprises an inner ring fixedly attached to the column and an outer ring fixedly attached to the shuffling plate. A pressure cap is threaded onto the upper end of the column. The pressure cap directly presses against the top of the inner ring and forces the pressure cap downward in the same direction of rotation as the shuffling plate. This downward movement of the pressure cap is consistent with the shuffling plate's rotation, ensuring that the pressure cap consistently moves downward and presses against the bearing's inner ring as the shuffling plate rotates. This effectively strengthens the bearing's axial restraining strength and improves the shuffling plate's installation and operational stability.

[0010] In the aforementioned mahjong machine control panel height adjustment assembly, the limiting structure includes a threaded hole (I) extending radially through the side wall of the pressure cap and a screw (I) threaded into the threaded hole. The lower end of the top cap extends into the pressure cap, and the top cap and the pressure cap rotate in opposite directions. The stem of the screw (I) presses tightly against the outer wall of the lower end of the top cap. The threads of the top cap and the pressure cap rotate in opposite directions, forming a mutual restraint. Thus, when pressed by the screw (I), both the pressure cap and the top cap are simultaneously stabilized in position. This provides advantages such as a simple structure and easy installation.

[0011] As another solution, in the above-mentioned mahjong machine control panel height adjustment assembly, the limiting structure includes a second threaded hole radially penetrating the side wall of the top cap and a second screw screwed into the second threaded hole, and the rod of the second screw is tightly pressed on the external threaded tube.

[0012] In the aforementioned mahjong machine control panel height adjustment assembly, the inner wall of the top cap at the upper end is a tapered surface with a diameter that gradually decreases from top to bottom. The outer wall of the lower end of the control panel features an annular surface with an axial cross-section that forms an arc that matches the tapered surface, with the tapered surface pressing against the annular surface. The tapered surface and the arc-shaped annular surface form a contact fit between the top cap and the control panel, improving the precision of their fit and enabling stable and precise raising and lowering of the control panel.

[0013] In the aforementioned mahjong machine control panel height adjustment assembly, a circle of curved ridges is formed on the outer wall of the top cap. These ridges extend vertically and are evenly spaced along the circumference of the top cap. The presence of these ridges increases the surface roughness of the top cap, facilitating rotation of the top cap to adjust the height of the control panel.

[0014] In the above-mentioned height adjustment assembly of the mahjong machine control panel, the column is an injection-molded integral part, which is easy to process and assemble.

[0015] Compared with the existing technology, the height adjustment component of the mahjong machine control panel has the following advantages:

[0016] 1. The top cap used to support the control panel upward is directly installed on the column, and the limiting structure used to lock the top cap is set between the top cap and the column. This can effectively enhance the locking strength of the top cap, ensure that the top cap always provides a reliable upward support force to the control panel, and enhance the structure and working stability of the mahjong machine.

[0017] 2. The thread directions of the top cap and the pressure cap are opposite to each other, so as to form mutual restraint, so that the pressure cap and the top cap can be stably limited at the same time when the screw is pressed, which has the advantages of simple structure and easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the installation of the control panel and the shuffling plate.

[0019] Figure 2 It is a cross-sectional diagram of the installation of the control panel and the shuffling plate.

[0020] Figure 3 yes Figure 2 Enlarged schematic diagram of point A in the middle.

[0021] Figure 4 It is a schematic diagram of the position of the top cap and the pressure cap.

[0022] In the figure, 1, column; 1a, external threaded pipe; 2, center pipe; 3, control panel; 3a, annular surface; 4, top cap; 4a, conical surface; 4b, arc-shaped convex strip; 5, bearing; 5a, inner ring; 5b, outer ring; 6, shuffling plate; 7, pressure cap; 8, screw one. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] Example 1

[0025] like Figure 1 and Figure 2 As shown, the height adjustment assembly of the mahjong machine control panel includes a hollow column 1 and a central tube 2 vertically slidably arranged in the column 1, and the upper end of the central tube 2 extends out of the column 1 and is fixedly connected to the control panel 3.

[0026] Specifically,

[0027] like Figures 2 to 4As shown, an externally threaded tube 1a is formed on the top of the column 1. The externally threaded tube 1a is coaxial with the column 1 and is sleeved on the outside of the center tube 2. A top cap 4 for lifting the control panel 3 is threadedly connected to the externally threaded tube 1a, and a limit structure for limiting the rotation of the top cap 4 is detachably provided between the top cap 4 and the column 1.

[0028] When in use, first remove the limiting structure, then rotate the top cap 4 to adjust the position of the control disk 3. After the position adjustment is completed, reinstall the limiting structure to lock the top cap 4 so that the top cap 4 always maintains the state of supporting the control disk 3 upward.

[0029] The top cap 4 for supporting the control panel 3 upward is directly mounted on the column 1, and the limiting structure for locking the top cap 4 is arranged between the top cap 4 and the column 1, so that the locking strength of the top cap 4 can be effectively enhanced, ensuring that the top cap 4 always provides a reliable upward supporting force to the control panel 3, thereby strengthening the structure and working stability of the mahjong machine.

[0030] like Figures 1 to 3 As shown, the mahjong machine also includes a shuffling plate 6 that is rotatably mounted on the column 1 via a bearing 5. The bearing 5 is a conventional ball bearing 5 and includes an inner ring 5a fixedly connected to the column 1 and an outer ring 5b fixedly connected to the shuffling plate 6. A pressure cap 7 is screwed onto the upper end of the column 1, and the pressure cap 7 is located below the top cap 4. The lower end of the pressure cap 7 directly presses against the top of the inner ring 5a, and the direction of rotation in which the pressure cap 7 is forced to move downward is the same as the direction of rotation of the shuffling plate 6. The downward movement of the pressure cap 7 is the same as the direction of rotation of the shuffling plate 6, so that the pressure cap 7 always has a tendency to move downward and press the inner ring 5a of the bearing 5 when the shuffling plate 6 rotates, thereby effectively strengthening the axial limiting strength of the bearing 5 and improving the installation and operating stability of the shuffling plate 6.

[0031] In this embodiment,

[0032] like Figure 2 、 Figure 3 and Figure 4 As shown, the retaining structure comprises a threaded hole 1 extending radially through the side wall of the pressure cap 7 and a screw 8 threaded into the threaded hole 1. The lower end of the top cap 4 extends into the pressure cap 7, with the top cap 4 and the pressure cap 7 having opposite thread directions. The shank of the screw 8 presses tightly against the outer wall of the lower end of the top cap 4. The threads of the top cap 4 and the pressure cap 7 have opposite thread directions, creating a mutual restraint. Thus, under the pressure of the screw 8, both the pressure cap 7 and the top cap 4 are simultaneously stabilized in position, resulting in a simple structure and easy installation.

[0033] like Figure 2As shown, the contact and fit between the control disk 3 and the top cap 4 are as follows: the inner wall of the top cap 4 at the upper end is a tapered surface 4a, whose diameter gradually decreases from top to bottom. The outer wall of the lower end of the control disk 3 has an annular surface 3a. The axial cross-section of the annular surface 3a is an arc-shaped that matches the tapered surface 4a, and the tapered surface 4a presses against the annular surface 3a. The contact and fit between the top cap 4 and the control disk 3, through the tapered surface 4a and the arc-shaped annular surface 3a, improves the precision of the fit between the top cap 4 and the control disk 3, enabling stable and precise lifting and lowering of the control disk 3.

[0034] In actual products, such as Figure 4 As shown, a circle of arcuate ridges 4b is formed on the outer wall of the upper end of the top cap 4. The arcuate ridges 4b extend vertically and are evenly spaced along the circumference of the top cap 4. The provision of the arcuate ridges 4b increases the surface roughness of the upper end of the top cap 4, facilitating rotation of the top cap 4 to adjust the height of the control disk 3.

[0035] Example 2

[0036] The structure and principle of the second embodiment are basically the same as those of the first embodiment, except that the limiting structure includes a second threaded hole radially penetrating the side wall of the top cap 4 and a second screw screwed into the second threaded hole, and the rod of the second screw is tightly pressed against the external threaded tube 1a.

[0037] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A mahjong machine control panel height adjustment assembly, comprising a hollow column (1) and a central tube (2) vertically slidably arranged in the column (1), wherein the upper end of the central tube (2) extends out of the column (1) and is fixedly connected to the control panel (3), characterized in that: An external threaded tube (1a) is formed on the top of the column (1), and the external threaded tube (1a) is sleeved outside the center tube (2). A top cap (4) for lifting the control panel (3) is threadedly connected to the external threaded tube (1a), and a limiting structure for limiting the rotation of the top cap (4) is detachably provided between the top cap (4) and the column (1).

2. The height adjustment assembly of the mahjong machine control panel according to claim 1, characterized in that: The mahjong machine includes a shuffling plate (6) rotatably arranged on a column (1) through a bearing (5), the bearing (5) including an inner ring (5a) fixedly connected to the column (1) and an outer ring (5b) fixedly connected to the shuffling plate (6), a pressing cap (7) is screwed onto the upper end of the column (1), the pressing cap (7) directly presses against the top of the inner ring (5a), and the rotation direction of forcing the pressing cap (7) to move downward is the same as the rotation direction of the shuffling plate (6).

3. The height adjustment assembly of the mahjong machine control panel according to claim 2, characterized in that: The limiting structure includes a threaded hole 1 radially penetrating the side wall of the pressure cap (7) and a screw 1 (8) screwed into the threaded hole 1, the lower end of the top cap (4) extends into the pressure cap (7), the spiral directions of the top cap (4) and the pressure cap (7) are opposite, and the rod of the screw 1 (8) is tightly pressed against the outer wall of the lower end of the top cap (4).

4. The height adjustment assembly of the mahjong machine control panel according to claim 1, characterized in that: The limiting structure comprises a threaded hole 2 radially penetrating the side wall of the top cap (4) and a screw 2 screwed into the threaded hole 2, and the rod of the screw 2 is tightly pressed on the external threaded tube (1a).

5. The height adjustment assembly of the mahjong machine control panel according to claim 1, characterized in that: The inner wall of the top cap (4) at the upper end is a conical surface (4a) whose diameter gradually decreases from top to bottom. The outer wall of the lower end of the control disk (3) has an annular surface (3a). The axial cross-section of the annular surface (3a) is in the shape of an arc that matches the conical surface (4a), and the conical surface (4a) is pressed on the annular surface (3a).

6. The height adjustment assembly of the mahjong machine control panel according to claim 1, characterized in that: A circle of arc-shaped convex strips (4b) is formed on the outer wall of the upper end of the top cap (4), the arc-shaped convex strips (4b) extend up and down, and the circle of arc-shaped convex strips (4b) are evenly spaced along the circumference of the top cap (4).

7. The height adjustment assembly of the mahjong machine control panel according to claim 1, characterized in that: The column (1) is an injection-molded integral part.

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