Switch protection device

Abstract

The utility model discloses a switch protection device which comprises a device body, the device body comprises an outer cover and a connecting plate, the outer cover is a cylinder with two open ends, and the connecting plate is connected to the inner wall of the outer cover; the first end of the connecting plate is used for being connected with a sealing cover, the connecting plate is provided with a first through hole and a second through hole, the first through hole is formed in the middle of the connecting plate and used for avoiding a switch, and the second through hole is matched with a mounting hole of the sealing cover; the outer cover comprises a protective cover arranged at the second end of the connecting plate, and the distance L1 from the second end, away from the connecting plate, of the protective cover to the first end of the connecting plate is larger than the distance L2 from the end face of the switch to the sealing cover. The protection device has the advantages that the protection device is simple in structure and low in manufacturing cost, original equipment does not need to be changed, and the protection device is convenient to install; and the switch is wrapped in the protective cover, so that no collision risk exists, and the switch can be protected and the equipment integrity can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco production auxiliary devices, in particular to a switch protection device. Background Art

[0002] At present, the YB618A carton transparent paper packaging machine used by cigarette factories, such as Figure 1 As shown, the transparent paper roll is installed on the support shaft 300, and a pneumatic support frame 301 is provided in the middle of the support shaft 300 to support the transparent paper roll. The transparent paper roll is fixed on the support shaft 300 so that the transparent paper roll rotates synchronously with the support shaft 300. When the roll is put on the support shaft 300, the pneumatic support frame 301 is controlled to retract through the switch 302. After the roll is installed in place, the pneumatic support frame 301 is controlled to pop out and support the roll through the switch 302.

[0003] The switch 302 is mounted on the cover 303, and a conical guide cover 304 is integrally provided at the end of the support shaft 300, and the switch 302 is exposed from the guide cover 304. When installing the transparent paper strip, since the switch 302 is exposed, the transparent paper strip and the switch 302 may collide, thereby damaging the switch 302, and also damaging the quality of the transparent paper strip, increasing the risk factor of products with quality hazards and the number of defective products, increasing production costs, and reducing production efficiency. Utility Model Content

[0004] In order to solve at least one of the above technical problems, the utility model provides a switch protection device, which is fixed to the cover through a connecting plate, and the switch is wrapped inside by a protective cover to protect the switch.

[0005] The utility model solves the technical problem by adopting the following technical solutions:

[0006] A switch protection device comprises a device body, the device body comprises an outer cover and a connecting plate, the outer cover is a cylinder with openings at both ends, and the connecting plate is connected to the inner wall of the outer cover; the first end of the connecting plate is used to connect to a cover, the connecting plate is provided with a first through hole and a second through hole, the first through hole is provided in the middle of the connecting plate for avoiding a switch, and the second through hole is adapted to the mounting hole of the cover; the outer cover comprises a protective cover provided at the second end of the connecting plate, the distance L1 from the second end of the protective cover away from the connecting plate to the first end of the connecting plate is greater than the distance L2 from the end face of the switch to the cover, so that the switch is located in the protective cover, and the switch is wrapped by the protective cover to protect the switch.

[0007] Furthermore, the connecting plate is connected to the first end of the protective cover, the outer diameter of the first end of the protective cover is larger than the outer diameter of the first end of the connecting plate, the distance L3 from the second end to the first end of the connecting plate is not less than the distance L4 from the free end of the guide cover to the cover, and the structure is simple.

[0008] Furthermore, the outer cover also includes a connection cover, the second end of the connection cover is connected to the first end of the protective cover; and a receiving groove is provided between the connection cover and the connecting plate for receiving the guide cover.

[0009] Furthermore, the connection cover is configured as a truncated cone cylinder matched with the guide cover, and the outer diameter of the first end of the connection cover is not greater than the maximum diameter of the guide cover, which is convenient for installing the device body and guiding the transparent paper roll of the box paper.

[0010] Furthermore, the connecting plate is configured as a frustum, and its outer wall is adapted to the inner wall of the guide cover, so as to facilitate the installation of the device body.

[0011] Furthermore, the protective cover is configured as a truncated cone cylinder, and the diameter of the second end of the protective cover is smaller than the diameter of the first end.

[0012] Furthermore, the distance L3 from the second end to the first end of the connecting plate is smaller than the distance L2 from the end surface of the switch to the cover, thereby increasing the operating space of the switch.

[0013] Furthermore, the connection plate is provided with three second through holes, and the second through holes are configured as countersunk holes to make the end surface of the connection plate flat.

[0014] Furthermore, the opening radius of the second end of the protective cover is larger than the farthest distance H from the second through hole to the straight line where the axis of the protective cover is located, so as to facilitate the installation of long screws.

[0015] Furthermore, the protection device also includes long screws adapted to the mounting holes of the cover, and used for mounting the connecting plate on the cover.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] (1) The protection device has a simple structure and low manufacturing cost. It does not require modification of the original equipment and is easy to install. The protective cover wraps the switch inside, eliminating the risk of collision and ensuring the protection of the switch and the integrity of the equipment.

[0018] (2) The connecting cover and the protective cover are set as a frustoconical cylinder, which can increase the guide taper and reduce the collision with the transparent paper of the cigarette box, making the replacement process of the transparent paper roll of the cigarette box smoother and more convenient, and making the quality of the transparent paper of the cigarette box not affected by the installation process, thereby ensuring the appearance quality of the cigarette rod, reducing the number of defective products, reducing production costs, and improving the production efficiency of the cigarette factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to better understand the above and other purposes, features, advantages and functions of the present invention, reference may be made to the embodiments shown in the accompanying drawings. The same reference numerals in the accompanying drawings refer to the same components. It should be understood by those skilled in the art that the accompanying drawings are intended to schematically illustrate the preferred embodiments of the present invention and have no limiting effect on the scope of the present invention, and the components in the drawings are not drawn to scale.

[0020] Figure 1 It is a schematic diagram of the structure of the support shaft.

[0021] Figure 2 This is a schematic structural diagram of the first embodiment of the switch protection device of the utility model.

[0022] Figure 3 This is a cross-sectional view of the first embodiment of the switch protection device of the utility model when in use.

[0023] Figure 4 This is a schematic structural diagram of a second embodiment of the switch protection device of the utility model.

[0024] Figure 5 This is a schematic structural diagram of the second embodiment of the switch protection device of the utility model from another direction.

[0025] Figure 6 This is a cross-sectional view of the second embodiment of the switch protection device of the utility model when in use.

[0026] Figure 7 It is a schematic diagram of the structure of the support shaft with a switch protection device installed.

[0027] In the figure: 100-device body; 101-connecting plate; 1011-first through hole; 1012-second through hole; 102-protective cover; 103-step; 104-connecting cover; 105-accommodating groove; 200-long screw; 300-support shaft; 301-pneumatic support frame; 302-switch; 303-cover; 304-guide cover. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model clearer, the exemplary embodiments of the present disclosure are described below in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0029] In the description of the present invention, it should be noted that the term "including" and its variations represent open inclusion, that is, "including but not limited to". The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0030] Example 1

[0031] This embodiment provides a switch 302 protection device, referring to Figure 2-Figure 7 As shown, it includes a device body 100, and the device body 100 includes an outer cover and a connecting plate 101. The outer cover is a cylinder with openings at both ends, and the connecting plate 101 is connected to the inner wall of the outer cover; the first end of the connecting plate 101 is used to connect the cover 303, and the connecting plate 101 is provided with a first through hole 1011 and a second through hole 1012. The first through hole 1011 is provided in the middle of the connecting plate 101 for avoiding the switch 302, and the second through hole 1012 is adapted to the mounting hole of the cover 303; the outer cover includes a protective cover 102 provided at the second end of the connecting plate 101, and the distance L1 from the second end of the protective cover 102 away from the connecting plate 101 to the first end of the connecting plate 101 is greater than the distance L2 from the end face of the switch 302 to the cover 303.

[0032] Specifically, Figure 2 As shown, the connecting plate 101 is connected to the first end of the protective cover 102, the outer diameter of the first end of the protective cover 102 is larger than the outer diameter of the first end of the connecting plate 101, and the distance L3 from the second end to the first end of the connecting plate 101 is not less than the distance L4 from the free end of the guide cover 304 to the cover 303.

[0033] The device body 100 of this embodiment has a simple structure and is formed as a boss structure. An L-shaped step 103 is formed between the outer wall of the connecting plate 101 and the protective cover 102, and the protective cover 102 forms an outer cover. When the device body 100 is installed on the cover 303, refer to Figure 3 and Figure 7 As shown, the size of the connecting plate 101 is smaller than the size of the opening of the guide cover 304, and the connecting plate 101 can be inserted into the guide cover 304 to fit with the cover 303. The guide cover 304 is accommodated at the step 103, and the protective cover 102 extends outward from the guide cover 304 to wrap the switch 302 inside to protect the switch 302. When the distance L3 from the second end to the first end of the connecting plate 101 is equal to the distance L4 from the free end of the guide cover 304 to the cover 303, the step 103 can abut against the guide cover 304; when the distance L3 from the second end to the first end of the connecting plate 101 is greater than the distance L4 from the free end of the guide cover 304 to the cover 303, there is a gap between the step 103 and the guide cover 304, which can avoid over-constraint caused by processing accuracy, and the assembly margin is larger, and the assembly is more convenient.

[0034] As a preferred embodiment, the connecting plate 101 is configured as a truncated cone, and its outer wall is adapted to the inner wall of the guide cover 304. In this embodiment, the outer wall of the connecting plate 101 forms a taper adapted to the inner wall of the guide cover 304, and the guide cover 304 is more easily accommodated at the step 103, which can avoid interference between the device body 100 and the guide cover 304, and it is more convenient to install the device body 100.

[0035] As a preferred embodiment, the protective cover 102 is configured as a truncated cone cylinder, and the diameter of the second end of the protective cover 102 is smaller than the diameter of the first end, so that the protective cover 102 can form a tapered structure and increase the guiding taper. When installing the transparent paper roll of the cartridge box, it is easier to guide the paper roll, reduce the collision of the transparent paper of the cartridge box, make the replacement process of the transparent paper roll of the cartridge box more stable and convenient, and make the quality of the transparent paper of the cartridge box not affected by the installation process, thereby ensuring the appearance quality of the cigarette rod, reducing the number of defective products, reducing production costs, and improving the production efficiency of the cigarette factory.

[0036] The protective cover 102 is configured as a truncated cone cylinder to reduce the size of the opening of the protective cover 102, thereby reducing the opening for the hand to insert into the protective cover 102 to operate the switch 302. In order to increase the operating space of the switch 302, preferably, the distance L3 from the second end to the first end of the connecting plate 101 is smaller than the distance L2 from the end face of the switch 302 to the cover 303, so that the switch 302 can protrude from the connecting plate 101, and the radial operating space of the switch 302 is larger, which facilitates the rotation operation of the switch 302.

[0037] The cover 303 is fastened by screws. After the protective device is installed, the screws need to pass through the connecting plate 101. Accordingly, the original short screws need to be replaced with longer long screws 200. The protective device also includes a long screw 200 that matches the mounting hole of the cover 303, which is used to install the connecting plate 101 on the cover 303. The original short screws of the transparent paper conveying device of the YB618A strip box transparent paper packaging machine are three M3 hexagon socket screws. The cover 303 has three mounting holes. In order to make the device body 100 firmly installed, the connecting plate 101 is provided with three second through holes 1012, and the protective device is installed on the cover 303 using three lengthened M3 hexagon socket screws. In order to make the end surface of the connecting plate 101 flat and prevent the screw head from hurting the hand when operating the switch 302, the second through hole 1012 is set as a countersunk hole. In order to facilitate the installation of the long screw 200, the opening radius of the second end of the protective cover 102 is larger than the farthest distance H from the second through hole 1012 to the straight line where the axis of the protective cover 102 is located, that is, larger than the distance from the farthest end of the countersunk hole to the straight line where the axis of the protective cover 102 is located, so that the second through hole 1012 is located in the opening of the second end of the protective cover 102, and the protective cover 102 will not block the second through hole 1012, and the long screw 200 can be inserted straight into the second through hole 1012 from the opening, and it is convenient to insert the tool from the opening at the second end of the protective cover 102 to tighten the long screw 200.

[0038] It can be understood that transparent paper roll and paper roll are short for strip box transparent paper roll, which are only for the convenience of description and can be used interchangeably.

[0039] Example 2

[0040] The other components of this embodiment are the same as those of embodiment 1. The difference from embodiment 1 is that Figure 4 and Figure 5 As shown, the outer cover also includes a connection cover 104, and the connection cover 104 is a cylinder with two ends opened, and the second end of the connection cover 104 is connected to the first end of the protective cover 102. The connection cover 104 and the protective cover 102 form an outer cover, and the protective cover 102 and the connection cover 104 can be processed in one piece or fixed by welding. There is a receiving groove 105 between the connection cover 104 and the connecting plate 101 for receiving the guide cover 304.

[0041] In this embodiment, when the device body 100 is installed on the cover 303, refer to Figure 6 and Figure 7As shown, the connecting plate 101 is inserted into the guide cover 304 and fits with the cover 303. The guide cover 304 can be accommodated in the receiving groove 105 between the connecting cover 104 and the connecting plate 101. The connecting cover 104 is sleeved on the outside of the guide cover 304. The protective cover 102 extends outward to wrap the switch 302 inside to protect the switch 302. When installing the transparent paper roll of the box, the paper roll passes through the protective cover 102, the connecting cover 104 and the guide cover 304 in sequence and is sleeved on the support shaft 300, so that the paper roll installation process is more stable.

[0042] The second end of the connecting plate 101 can be connected to the second end of the protective cover 102. At this time, a receiving groove 105 is formed between the connecting cover 104, the entire protective cover 102 and the connecting plate 101, and the guide cover 304 can be inserted into the receiving groove 105; the second end of the connecting plate 101 can also be connected to the inner wall of the connecting cover 104. At this time, a receiving groove 105 is formed between the connecting cover 104 and the connecting plate 101. In order to make the connecting plate 101 fit the cover 303 while the guide cover 304 can be accommodated in the receiving groove 105, preferably, the distance L3 from the second end to the first end of the connecting plate 101 is greater than the distance L4 from the free end of the guide cover 304 to the cover 303; the second end of the connecting plate 101 can also be connected to the inner wall of the protective cover 102. At this time, a receiving groove 105 is formed between the connecting cover 104, part of the protective cover 102 and the connecting plate 101, and the guide cover 304 can be inserted into the receiving groove 105.

[0043] As a preferred embodiment, in order to make it easier for the connection cover 104 to be sleeved on the guide cover 304, the connection cover 104 can be set as a truncated cone cylinder that matches the guide cover 304. When the connecting plate 101 is set as a truncated cone, the receiving groove 105 matches the taper of the guide cover 304, and the guide cover 304 is easier to insert into the receiving groove 105, and the installation device body 100 is more convenient. The connection cover 104 forms a taper, which can be used for guiding when installing the box paper transparent paper roll. The diameter of the transparent paper roll is slightly larger than the diameter of the support shaft 300 (the maximum diameter of the guide cover 304). In order to make the transparent paper roll pass through the connection cover 104 smoothly and prevent it from getting stuck, preferably, the outer diameter of the first end of the connection cover 104 is not larger than the maximum diameter of the guide cover 304.

[0044] The protective device has a simple structure, low manufacturing cost, does not require modification of the original equipment, and is easy to install; the protective cover 102 wraps the switch 302 inside, without the risk of collision, and can achieve protection of the switch 302 and equipment integrity. The connection cover 104 and the protective cover 102 are set as a truncated cone cylinder, which can increase the guide taper, reduce the collision of the transparent paper of the carton, make the replacement process of the transparent paper roll of the carton more stable and convenient, and make the quality of the transparent paper of the carton not affected by the installation process, thereby ensuring the appearance quality of the cigarette rod, reducing the number of defective products, reducing production costs, and improving the production efficiency of the cigarette factory.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A switch protection device, characterized in that: The device comprises a device body, which comprises an outer cover and a connecting plate. The outer cover is a cylinder with openings at both ends, and the connecting plate is connected to the inner wall of the outer cover. The first end of the connecting plate is used to connect to the cover. The connecting plate is provided with a first through hole and a second through hole. The first through hole is provided in the middle of the connecting plate for avoiding the switch, and the second through hole is adapted to the mounting hole of the cover. The outer cover comprises a protective cover provided at the second end of the connecting plate, and the distance L1 from the second end of the protective cover away from the connecting plate to the first end of the connecting plate is greater than the distance L2 from the end face of the switch to the cover.

2. The switch protection device according to claim 1, characterized in that: The connecting plate is connected to the first end of the protective cover, the outer diameter of the first end of the protective cover is larger than the outer diameter of the first end of the connecting plate, and the distance L3 from the second end to the first end of the connecting plate is not less than the distance L4 from the free end of the guide cover to the cover.

3. The switch protection device according to claim 1, characterized in that: The outer cover also includes a connection cover, the second end of which is connected to the first end of the protective cover; and a receiving groove is provided between the connection cover and the connecting plate for receiving the guide cover.

4. The switch protection device according to claim 3, characterized in that: The connection cover is configured as a truncated cone cylinder matched with the guide cover, and the outer diameter of the first end of the connection cover is not greater than the maximum diameter of the guide cover.

5. The switch protection device according to claim 2, 3 or 4, characterized in that: The connecting plate is configured as a frustum, and its outer wall is matched with the inner wall of the guide cover.

6. The switch protection device according to claim 1, characterized in that: The protective cover is configured as a truncated cone cylinder, and the diameter of the second end of the protective cover is smaller than the diameter of the first end.

7. The switch protection device according to claim 6, characterized in that: The distance L3 from the second end to the first end of the connecting plate is smaller than the distance L2 from the switch end surface to the cover.

8. The switch protection device according to claim 1, characterized in that: The connecting plate is provided with three second through holes, and the second through holes are configured as countersunk holes.

9. The switch protection device according to claim 1, characterized in that: The opening radius of the second end of the protective cover is greater than the longest distance H from the second through hole to the straight line where the axis of the protective cover is located.

10. The switch protection device according to claim 1, characterized in that: The protection device also includes a long screw matched with the mounting hole of the cover.

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