Card dealing machine

Abstract

The utility model discloses a card dealing machine which comprises a shell, a turning cover, a hidden lifting side baffle and a connecting rod. The shell comprises an obliquely-arranged bin bottom plate and side plates surrounding the bin bottom plate, and strip-shaped holes extending in the front-back direction are formed in the connecting positions of the bin bottom plate and the side plates on the left side and the right side. The turning cover comprises a cover body and bending parts arranged at the bottom ends of the left side and the right side of the cover body, the bending parts extend into the shell through the strip-shaped holes, and the middle parts of the bending parts are pivoted with the shell; the hidden lifting side baffle is movably mounted in the strip-shaped hole; and two ends of the connecting rod are respectively pivoted with the lower front part of the hidden lifting side baffle and the far end of the bent part. The hidden lifting side baffle is controlled to be hidden or lifted by operating the turning cover to be closed or opened; in the dealing process, the hidden lifting side baffle rises, players can see the dealing process, and dealing is fair and just; after use, the hidden lifting side baffle is hidden in the shell, so that the size of the card dealing machine is reduced, and the card dealing machine is convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of entertainment supplies, and particularly relates to a card dealing machine. Background Art

[0002] Playing cards, as the most common entertainment supplies in people's lives, are deeply loved by the general public because of their diverse playing methods and being suitable for all ages. With the development of technology, various machines that replace manual card dealing have emerged, greatly improving the experience of poker games.

[0003] In related technologies, the card dealing machine includes a rotating base, a housing, a card feeding mechanism, a card dealing mechanism, a control board, a motor, a battery, etc. During the card dealing process of some card dealing machines, the playing cards are placed in the card bin, and the situation of the playing cards in the card bin cannot be seen or clearly seen, which easily leads to doubts about the fairness and impartiality of card dealing; the card bin of some card dealing machines is open, the playing cards are stacked on the top of the card dealing machine (the position where the card bin is located), and vertical baffles are arranged on the left and right sides (with the direction of the playing cards flying out as the front) of the card bin. Such a card dealing machine improves the credibility of the fairness and impartiality of card dealing to a certain extent, but the existence of the vertical baffles makes the card dealing machine large in size and not easy to carry. Summary of the Utility Model

[0004] Therefore, the utility model provides a card dealing machine to solve or alleviate one or more of the above technical problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A card dealing machine includes a housing, a flip cover and a hidden lifting side baffle; the housing includes a bin bottom plate and side plates surrounding the bin bottom plate, and strip-shaped holes extending in the front-back direction are provided at the connection positions of the bin bottom plate and the left and right side plates; the flip cover includes a cover body and bending parts arranged at the bottom ends on the left and right sides of the cover body, and the bending parts extend into the housing through the strip-shaped holes and are pivotally connected to the housing; the hidden lifting side baffle is movably installed in the strip-shaped holes; the hidden lifting side baffle is linked with the flip cover. When the flip cover is closed, the hidden lifting side baffle is hidden in the strip-shaped holes, and when the flip cover is opened, the hidden lifting side baffle rises in the strip-shaped holes.

[0007] Further, the card dealing machine further includes a connecting rod. The middle part of the bending part is pivotally connected to the housing, the distal end of the bending part is pivotally connected to one end of the connecting rod, the upper front part of the hidden lifting side baffle is pivotally connected to the housing, and the lower front part of the hidden lifting side baffle is pivotally connected to the other end of the connecting rod.

[0008] Further, the card dealing machine further includes a pulling plate, one end of the pulling plate is installed on the rear side of the cover body, the pulling plate is provided with a sliding groove, a slider is slidably arranged in the sliding groove, the hidden lifting side baffle is connected to the slider, and the hidden lifting side baffle is pivotally connected to the housing.

[0009] Further, the rear side of the cover body is connected to the hidden lifting side baffle by a pull rope, and the hidden lifting side baffle is pivotally connected to the housing.

[0010] Further, the card dealing machine further includes an ejecting mechanism, the ejecting mechanism is arranged in the housing, and the ejecting mechanism is used to eject the hidden lifting side baffle from the strip hole when the flip cover is opened.

[0011] Further, the card dealing machine further includes a damping rotating shaft, and the bent portion is connected to the housing through the damping rotating shaft.

[0012] Further, the card dealing machine further includes a positioning component, a part of the positioning component is arranged on the flip cover, and another part of the positioning component is arranged on the housing, and the positioning component is used to limit the flip cover to the housing when in the closed position and the working position.

[0013] Further, the positioning component is a magnetic attraction component or a snap component, a part of the magnetic attraction component is a magnet, another part of the magnetic attraction component is a magnet or an iron sheet, a part of the snap component is a convex block, and another part of the snap component is a groove.

[0014] Further, the hidden lifting side baffle is a transparent side baffle plate or a hollowed-out side baffle frame.

[0015] Further, the card dealing machine further includes a floating pressure component, the floating pressure component includes a baffle, a vertical guide rod, a horizontal limiting rod and a spring; vertical guide rods are respectively arranged on the left and right sides of the top of the baffle, and horizontal limiting rods are respectively arranged on the left and right sides of the baffle; an installation position for installing the baffle is arranged at the lower part of the rear side of the cover body, blocks are respectively arranged on the left and right sides of the top of the installation position, blind holes recessed upward are arranged on the lower side surfaces of the blocks, and vertical sliding grooves are arranged on the left and right sides of the installation position; the spring is sleeved on the vertical guide rod, the lower end of the spring abuts against the upper edge of the baffle, the upper end of the spring is inserted into the blind hole and abuts against the bottom of the blind hole; the rod ends of the horizontal limiting rods are slidably inserted into the vertical sliding grooves.

[0016] The utility model has the following advantages:

[0017] The card dealing machine provided by the present utility model controls the hiding or rising of the hidden lifting side baffle by operating the flip cover to close or open; during the card dealing process, the hidden lifting side baffle rises to prevent the stacked playing cards from sliding to the left and right sides. The card dealing process is visible to the players, and the card dealing is fair and just; after use, the hidden lifting side baffle is hidden in the housing, reducing the volume of the card dealing machine and facilitating carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained according to the provided drawings.

[0019] The structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limited conditions for the implementation of the present utility model. Therefore, they do not have technical substance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0020] Figure 1 FIG. is a schematic structural diagram of a card dealing machine provided by an embodiment of the present utility model when the flip cover is closed;

[0021] Figure 2 FIG. is a schematic structural diagram of a card dealing machine provided by an embodiment of the present utility model when the flip cover is erected (when the flip cover is erected, the hidden lifting side baffle will be pulled up);

[0022] Figure 3 FIG. is a schematic diagram of the positional relationship between the flip cover of a card dealing machine provided by an embodiment of the present utility model in the closed state and the hidden lifting side baffle;

[0023] Figure 4 FIG. is a schematic diagram of the positional relationship between the flip cover of a card dealing machine provided by an embodiment of the present utility model in the erected state and the hidden lifting side baffle;

[0024] Figure 5 FIG. is a schematic structural diagram of the housing of a card dealing machine provided by an embodiment of the present utility model;

[0025] Figure 6 FIG. is a schematic structural diagram of the flip cover of a card dealing machine provided by an embodiment of the present utility model;

[0026] Figure 7Side view structure diagram of the flip cover of a card dealing machine provided with a floating pressure component according to an embodiment of the present invention;

[0027] Figure 8 For Figure 7 Cross-sectional view taken along A-A in;

[0028] Figure 9 Schematic structural diagram of a card dealing machine provided with a pulling plate between a flap and a hidden lifting side baffle according to an embodiment of the present invention;

[0029] Figure 10 Side view structure diagram of the flip cover of a card dealing machine provided with a magnetic attraction component according to an embodiment of the present invention;

[0030] Figure 11 Schematic position diagram of the magnetic attraction component when the flip cover of a card dealing machine provided with a magnetic attraction component is in the working position according to an embodiment of the present invention;

[0031] Figure 12 Schematic position diagram of the magnetic attraction component when the flip cover of a card dealing machine provided with a magnetic attraction component is in the closed position according to an embodiment of the present invention.

[0032] In the figure: 1 - housing, 11 - bin bottom plate, 12 - side plate, 13 - strip hole, 2 - flip cover, 21 - cover body, 22 - bent portion, 23 - installation position, 24 - stop block, 25 - vertical chute, 3 - hidden lifting side baffle, 4 - connecting rod, 5 - damping rotating shaft, 6 - pivot shaft, 7 - floating pressure component, 71 - baffle plate, 72 - vertical guide rod, 73 - horizontal limiting rod, 74 - spring, 8 - pulling plate, 81 - chute, 82 - slider, 9 - magnetic attraction component. Detailed implementation manners

[0033] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] Terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and clarity, rather than to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships, without substantial changes in the technical content, should also be regarded as within the scope of implementation of the present invention.

[0035] Such as Figures 1 - 8As shown, this embodiment provides a card dealing machine, including a housing 1 , a flip cover 2 and a hidden lifting side stop 3 .

[0036] The housing 1 is a supporting structure for installing the flip cover 2 and the hidden lifting side guard 3, and is also the basis for setting the card bin and installing other structures such as the card feeding mechanism, the card issuing mechanism, the control panel, etc. The housing 1 can adopt the housing 1 of the existing open card bin, except that holes or windows for installing the flip cover 2 and the hidden lifting side guard 3 need to be provided.

[0037] In this embodiment, the housing 1 includes a bin bottom plate 11 and side plates 12 surrounding the bin bottom plate 11; wherein the bin bottom plate 11 is the bottom plate of the card bin, used to carry playing cards; wherein the side plates 12 are vertical or nearly vertical wall plates of the housing 1, which may have a certain thickness, or may have other structures (not related to the present application, and will not be described in detail), may be higher than the bin bottom plate 11, or may be flush with the bin bottom plate 11. Exemplarily, the bin bottom plate 11 is tilted and arranged in a shape of low front and high back. The connection position of the bin bottom plate 11 and the side plates 12 on the left and right sides is provided with a strip hole 13 extending in the front-to-back direction; preferably, two strip holes 13 are provided on each side, and the strip hole 13 on the front side is closer to the side (that is, among the two strip holes 13 on the left side, the strip hole 13 on the front side is closer to the left relative to the strip hole 13 on the rear side; among the two strip holes 13 on the right side, the strip hole 13 on the front side is closer to the right relative to the strip hole 13 on the rear side). In this application, the direction in which the cards are dealt is referred to as "front".

[0038] The flip cover 2 includes a cover body 21 and a bent portion 22 disposed at the bottom ends of the left and right sides of the cover body 21. The bent portion 22 is L-shaped or hook-shaped, extending downward and rearward from the bottom end of the cover body 21 (this feature description is based on the state when the cover body 21 is opened in a vertical position). The bent portion 22 passes through the strip hole 13 and then extends into the housing 1. The bent portion 22 is pivotally connected to the housing 1. In this embodiment, the bent portion 22 is installed in the strip hole 13 that is closer to the side or the front.

[0039] The hidden lifting side guard 3 is movably installed in the strip hole 13, and the hidden lifting side guard 3 is linked with the flip cover 2. When the flip cover 2 is closed, the hidden lifting side guard 3 is hidden in the strip hole 13, and when the flip cover 2 is opened, the hidden lifting side guard 3 rises in the strip hole 13.

[0040] The card dealing machine provided in this embodiment controls the hiding or raising of the hidden lifting side guard 3 by operating the flip cover 2 to be closed (laid flat, generally refers to the position of 0° or close to 0°) or opened (vertical, generally refers to the position of 90° or close to 90°); during the card dealing process, the hidden lifting side guard 3 is raised to prevent the stacked playing cards from sliding to the left or right, and the card dealing process is visible to the players, and the card dealing is fair and just; after use, the hidden lifting side guard 3 is hidden in the shell 1, so as to reduce the size of the card dealing machine and facilitate carrying.

[0041] In one embodiment, the card dealing machine further includes a connecting rod 4; the middle part of the bending part 22 is pivotally connected to the housing 1, and the upper front part of the hidden lifting side baffle 3 is pivotally connected to the housing 1 (this feature description is based on the state when the hidden lifting side baffle 3 is in the hidden state); one end of the connecting rod 4 is pivotally connected to the distal end of the bending part 22, and the other end of the connecting rod 4 is pivotally connected to the lower front part of the hidden lifting side baffle 3 (this feature description is based on the state when the cover body 21 is closed in the flat position and the hidden lifting side baffle 3 is in the hidden state). In this embodiment, the hidden lifting side baffle 3 is installed in the more inward or rearward strip-shaped hole 13. Thus, when the flip cover 2 is opened, the bending part 22 drives the connecting rod 4 to move backward, driving the lower front part of the hidden lifting side baffle 3 to move backward, and the hidden lifting side baffle 3 rotates around its upper front part, so that the middle and rear parts of the hidden lifting side baffle 3 extend out of the strip-shaped hole 13; conversely, when the flip cover 2 is closed, the hidden lifting side baffle 3 resets and hides.

[0042] In one embodiment, as Figure 9 shown, the card dealing machine further includes a pulling plate 8. One end of the pulling plate 8 is installed on the rear side of the cover body 21. The pulling plate is provided with a sliding groove 81, and a sliding block 82 is slidably arranged in the sliding groove 81. The hidden lifting side baffle 3 is connected to the sliding block 82, and the hidden lifting side baffle 3 is pivotally connected to the housing 1. Thus, during the opening process of the flip cover 2, the pulling plate 8 is pulled out from the strip-shaped hole 13. At this time, the sliding block 82 remains stationary with the hidden lifting side baffle 3. When the sliding block 82 slides relatively to the rear end of the sliding groove 81, the pulling plate 8 drives the hidden lifting side baffle 3 to move together, so that the hidden lifting side baffle 3 rises from the strip-shaped hole 13; conversely, when the flip cover 2 is closed, after the sliding block 82 slides relatively to the front end of the sliding groove 81, the pulling plate 8 pushes the hidden lifting side baffle 3 to reset and hide, or the flip cover 2 directly pushes the hidden lifting side baffle 3 to reset and hide during the closing process.

[0043] In one embodiment, the rear side of the cover body 21 is connected to the hidden lifting side baffle 3 by a pull rope, and the hidden lifting side baffle 3 is pivotally connected to the housing 1. Thus, during the opening process of the flip cover 2, the hidden lifting side baffle 3 is pulled out from the strip-shaped hole 13 by the pull rope (that is, the hidden lifting side baffle 3 rises from the strip-shaped hole 13); conversely, when the flip cover 2 is closed, the hidden lifting side baffle 3 is pushed to reset and hide.

[0044] In one embodiment, the card dealing machine further includes an ejecting mechanism disposed inside the housing. The ejecting mechanism is configured to eject the hidden lifting side baffle 3 from the strip hole 13 when the flip cover 2 is opened. It should be noted that, different from the above-described embodiment, in this embodiment, the hidden lifting side baffle 3 is not pivotally connected to the housing 1. Exemplarily, the hidden lifting side baffle 3 is slidably installed in the strip hole 13 of the housing 1; the ejecting mechanism is an elastic pin, and when its operating end extends, it acts on the lower part of the hidden lifting side baffle 3, thereby ejecting the hidden lifting side baffle 3 from the strip hole 13; conversely, during the closing process of the flip cover 2, the hidden lifting side baffle 3 is pressed to reset.

[0045] In an alternative solution, the card dealing machine further includes a damping rotating shaft 5. The bent portion 22 is connected to the housing 1 through the damping rotating shaft 5. Specifically, the bent portion 22 is connected to the damping rotating shaft 5, and the other end of the damping rotating shaft 5 is fixed to the housing 1. Thus, the flip cover 2 can rotate around the damping rotating shaft 5; the damping rotating shaft 5 has a torque of 0.01 - 0.15 N·m, so that the flip cover 2 can stop rotating at any angle within 0 - 90°. In this application, except for using the damping rotating shaft 5 here, other pivotal connections all use a pivotal shaft 6 (a common rotating shaft).

[0046] In this embodiment, the hidden lifting side baffle 3 is a transparent side baffle or a hollowed-out side baffle frame. Thus, there is almost no occlusion on both sides, and the card dealing process is transparently visible on the left, right, and rear sides, allowing players behind and on both sides to clearly see the card dealing process during use, significantly improving the fairness of the machine.

[0047] In this embodiment, the card dealing machine further includes a floating pressure assembly 7, and the floating pressure assembly 7 includes a baffle 71, a vertical guide rod 72, a horizontal limiting rod 73 and a spring 74. The left and right sides of the top of the baffle 71 are respectively fixedly connected or detachably connected with a vertical guide rod 72, and the left and right sides of the baffle 71 are respectively fixedly connected or detachably connected with a horizontal limiting rod 73. The lower part of the rear side of the cover body 21 is provided with an installation position 23 for installing the baffle 71. The left and right sides of the top of the installation position 23 are respectively provided with stoppers 24. The lower side surface of the stopper 24 is provided with a blind hole (not shown in the figure) recessed upward. The left and right sides of the installation position 23 are provided with vertical sliding grooves 25. The spring 74 is sleeved on the vertical guide rod 72. The lower end of the spring 74 abuts against the upper edge of the top plate 71, and the upper end passes through the blind hole and abuts against the bottom of the blind hole (since the inlet of the blind hole is arranged at the lower side, the bottom of the hole is at the upper side). The upper end of the vertical guide rod 72 may not pass through the blind hole, or may pass through the blind hole (when the baffle 71 moves upward, the vertical guide rod 72 may penetrate into the blind hole). The rod end of the horizontal limiting rod 73 slidably penetrates through the vertical sliding groove 25. In this way, the baffle 71 can have a certain downward pressure under the action of the spring 74. When the playing cards pass through the gap between the lower part of the baffle 71 and the bin bottom plate 11 (the playing card channel, which is called the card inlet in some card dealing machine patents), it can prevent the playing cards from coming out multiple times at a single time (referring to multiple cards entering the playing card channel at a time, which will cause multiple card dealing and result in inaccurate card dealing); during installation, first install the vertical guide rod 72 on the baffle 71 (the two can also be integrally formed), then sleeve the spring on the vertical guide rod 72, put the baffle 71 into the installation position 23 from bottom to top (at this time, the flip cover 2 has not been installed on the housing 1), the upper end of the spring 74 extends into the blind hole, and finally pass the horizontal limiting rod 73 through the vertical sliding groove 25 and fix it to the baffle 71. This design is beneficial to production and assembly. In the structure using the connecting rod 4 to connect the flip cover 2 and the hidden lifting side baffle 3, the middle part of the bent part 22 is pivotally connected to the housing 1. In this way, when the flip cover 2 is opened and closed, the baffle 71 does not come into contact with the friction wheel at the card inlet, and interference between the baffle 71 and the friction wheel is avoided.

[0048] In one embodiment, the card dealing machine further includes a positioning assembly. A part of the positioning assembly is arranged on the flip cover, and another part of the positioning assembly is arranged on the housing. The positioning assembly is used to limit the flip cover to the housing when the flip cover is in the closed position and the working position. Exemplarily, such as Figures 10 - 12As shown, the positioning component is the magnetic attraction component 9. One part of the magnetic attraction component 9 is a magnet, and the other part is a magnet or an iron sheet. When the flip cover 2 is in the closed state, the two parts of a set of magnetic attraction components 9 are respectively installed at the corresponding positions of the housing 1 and the flip cover 2. When the flip cover 2 is in the working state, the two parts of a set of magnetic attraction components 9 are respectively installed at the corresponding positions of the housing 1 and the flip cover 2. Thus, when the flip cover 2 is closed (laid flat) or opened (erected), under the action of the magnetic attraction force, the flip cover 2 and the hidden lifting side baffle 3 can better maintain their positions. Exemplarily, the positioning component is a snap component. One part of the snap component is a convex block, and the other part is a groove. When the flip cover 2 is in the closed state, the two parts of a set of snap components are respectively installed at the corresponding positions of the housing 1 and the flip cover 2. When the flip cover 2 is in the working state, the two parts of a set of snap components are respectively installed at the corresponding positions of the housing 1 and the flip cover 2. Thus, when the flip cover 2 is closed or opened, the convex block can be snapped into the groove, so that the flip cover 2 and the hidden lifting side baffle 3 can better maintain their positions.

[0049] Although the present utility model has been described in detail with general descriptions and specific embodiments above, based on the present utility model, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present utility model all fall within the scope of protection required by the present utility model.

Claims

1. A card dealing machine, characterized in that, It includes a housing, a flip cover and a hidden lifting side baffle; the housing includes a bin bottom plate and side plates surrounding the bin bottom plate, and strip-shaped holes extending in the front-rear direction are provided at the connection positions of the bin bottom plate and the side plates on the left and right sides; the flip cover includes a cover body and bent portions provided at the bottom ends on the left and right sides of the cover body, and the bent portions extend into the housing through the strip-shaped holes and are pivotally connected to the housing; the hidden lifting side baffle is movably installed in the strip-shaped holes; the hidden lifting side baffle is linked with the flip cover, when the flip cover is closed, the hidden lifting side baffle is hidden in the strip-shaped holes, and when the flip cover is opened, the hidden lifting side baffle rises in the strip-shaped holes.

2. The card dealing machine according to claim 1, wherein The card dealing machine further includes a connecting rod, the middle part of the bent portion is pivotally connected to the housing, the distal end of the bent portion is pivotally connected to one end of the connecting rod, the upper front part of the hidden lifting side baffle is pivotally connected to the housing, and the lower front part of the hidden lifting side baffle is pivotally connected to the other end of the connecting rod.

3. The card dealer according to claim 1, characterized in that, The card dealing machine further includes a pulling plate, one end of the pulling plate is installed on the rear-facing side of the cover body, the pulling plate is provided with a sliding groove, a slider is slidably arranged in the sliding groove, the hidden lifting side baffle is connected to the slider, and the hidden lifting side baffle is pivotally connected to the housing.

4. The card dealing machine according to claim 1, wherein, The rear-facing side of the cover body is connected to the hidden lifting side baffle by a pull rope, and the hidden lifting side baffle is pivotally connected to the housing.

5. The card dealing machine according to claim 1, characterized in that, The card dealing machine further includes an ejecting mechanism, the ejecting mechanism is arranged in the housing, and the ejecting mechanism is used to eject the hidden lifting side baffle from the strip-shaped holes when the flip cover is opened.

6. The card dealing machine according to claim 1, characterized in that, The card dealing machine further includes a damping rotating shaft, and the bent portion is connected to the housing through the damping rotating shaft.

7. The card dealing machine according to claim 1, characterized in that, The card dealing machine further includes a positioning component, a part of the positioning component is arranged on the flip cover, and another part of the positioning component is arranged on the housing, and the positioning component is used to limit the flip cover to the housing when in the closed position and the working position.

8. The card dealing machine according to claim 7, wherein, The positioning component is a magnetic attraction component or a snap component, a part of the magnetic attraction component is a magnet, another part of the magnetic attraction component is a magnet or an iron sheet, a part of the snap component is a convex block, and another part of the snap component is a groove.

9. The card-dealing machine according to claim 1, wherein The hidden lifting side baffle is a transparent side baffle plate or a hollowed-out side baffle frame.

10. The card dealing machine according to claim 1, wherein, The card dealing machine further includes a floating pressure component, the floating pressure component includes a baffle plate, a vertical guide rod, a horizontal limiting rod and a spring; vertical guide rods are respectively arranged on the left and right sides of the top of the baffle plate, and horizontal limiting rods are respectively arranged on the left and right sides of the baffle plate; an installation position for installing the baffle plate is provided at the lower rear part of the cover body, blocks are respectively arranged on the left and right sides of the top of the installation position, blind holes recessed upward are arranged on the lower side surfaces of the blocks, and vertical sliding grooves are arranged on the left and right sides of the installation position; the spring is sleeved on the vertical guide rod, the lower end of the spring abuts against the upper edge of the baffle plate, the upper end of the spring is inserted into the blind hole and abuts against the bottom of the blind hole; the rod ends of the horizontal limiting rods slide through the vertical sliding grooves.

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