Traditional Chinese medicine fumigation device

Abstract

The invention belongs to the technical field of traditional Chinese medicine treatment, and discloses a traditional Chinese medicine fumigation device which comprises a box body and a heater, a bottom plate is installed in the middle of the inner wall of the box body, a placing box and a supporting ring are fixedly installed at the top of the inner wall of the box body, and ventilation openings are formed in the outer surface and the bottom of the placing box. And a moving ring is rotationally mounted in the supporting ring, a plurality of sets of fixing plates are fixedly connected to the outer surface of the moving ring, and a first air inlet is formed in the outer surface of the moving ring. According to the device, high-temperature steam is introduced into the inner cavity of the placing box, and a high-temperature steam channel is controlled in the first sealing ring and the second sealing ring which can move by the moving ring, so that the direction of liquid medicine steam entering the inner cavity of the placing box through the first sealing ring and the second sealing ring can be continuously changed; and the high-temperature steam entering the inner cavity of the placing box changes the direction of acting on the skin of the user, so that scalding is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of traditional Chinese medicine treatment, and specifically relates to a traditional Chinese medicine fumigation device. Background Art

[0002] Traditional Chinese medicine fumigation, also known as steam therapy, is a kind of external treatment method of traditional Chinese medicine guided by traditional Chinese medicine theory. It uses the steam generated after decocting traditional Chinese medicine to achieve the treatment purpose by fumigating the body. Generally, the traditional Chinese medicine fumigation device acts on the feet of the user. The traditional Chinese medicine fumigation therapy makes use of this physiological characteristic of the skin, enabling the medicine to be absorbed through the skin surface, penetrate through the stratum corneum, and be transported through the dermis into the blood circulation to exert its pharmacological effects.

[0003] In the prior art, mainly by heating the mixed medicinal liquid containing traditional Chinese medicinal materials to make it boil and generate steam containing the medicine, and making the steam directly act on the feet of the user. However, the relatively enclosed space of the fumigation device combined with the high-temperature steam containing the medicine may cause scalding of the user's skin. In the prior art, the high-temperature steam containing the medicine generated by the fumigation device flows towards the feet of the user from all directions, which may cause fumigation scalding and affect the final fumigation effect of the device. Because the steam is generally accompanied by high temperature, and in the prior art, the high temperature of the steam cannot be effectively restricted, so that the traditional Chinese medicine fumigation device does not have true safety and practicality. Summary of the Invention

[0004] The purpose of the present invention is to provide a traditional Chinese medicine fumigation device to solve the problems proposed in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A traditional Chinese medicine fumigation device, including a box body and a heater. The middle part of the inner wall of the box body is provided with a bottom plate. The top of the inner wall of the box body is fixedly installed with a placement box and a support ring. The outer surface and bottom of the placement box are both provided with ventilation openings. The inner part of the support ring is rotatably installed with a moving ring. The outer surface of the moving ring is fixedly connected with multiple groups of fixing plates. The outer surface of the moving ring is provided with an air inlet one, and the bottom of the moving ring is provided with an air inlet two. The inner wall of the moving ring is respectively fixedly connected with a sealing ring one and a sealing ring two. Both the sealing ring one and the sealing ring two are in contact with the surface of the placement box. The four corners of the top of the bottom plate are fixedly communicated with exhaust pipes. The outer surface of the exhaust pipe is fixedly connected with a wind guiding box. The inner part of the wind guiding box is provided with an exhaust groove. The inner wall of the placement box is fixedly connected with a fixed column, and the outer surface of the fixed column is movably sleeved with a wooden rotating cylinder.

[0006] As a preferred solution of the present invention, the heater is installed at the bottom of the inner wall of the box body and is distributed in an "S" shape. The opening direction of the exhaust groove is parallel to the tangent of the moving ring.

[0007] As a preferred embodiment of the present invention, a water inlet pipe is fixedly communicated with the left side of the top of the bottom plate. An upper part of the inner wall of the water inlet pipe is fixedly provided with a support seat. An outer surface of the support seat is adaptively sleeved with a plug. A placement groove is formed in a bottom of the plug. A top end of the support seat is adaptively inserted into the placement groove. A spring is movably sleeved in the placement groove. Two ends of the spring are elastically connected to the placement groove and the support seat respectively.

[0008] As a preferred embodiment of the present invention, axial cross-sectional shapes of the plug and the support seat are both "T" shaped. A top of the plug abuts against a top of the inner wall of the water inlet pipe. A diameter value of the plug is greater than a top opening of the water inlet pipe and less than an inner diameter value of the water inlet pipe.

[0009] As a preferred embodiment of the present invention, the fixed columns are arranged in four groups parallel to each other in the front and back. A plurality of groups of equally spaced grooves are formed on an outer surface of the wooden rotating cylinder, and arc transitions are provided.

[0010] As a preferred embodiment of the present invention, the number of the first air inlets is two, and they are symmetrically distributed on the front and back sides of the outer surface of the moving ring. The first air inlets are communicated with the first sealing ring. The number of the second air inlets is two, and they are symmetrically distributed on the left and right sides of the bottom of the inner wall of the moving ring. The second air inlets are communicated with the second sealing ring.

[0011] As a preferred embodiment of the present invention, the fixing plate covers the first air inlet. An outer edge of the fixing plate is designed with an inclined corner, so that an outlet of the exhaust groove and an inner corner of the fixing plate can face each other directly.

[0012] As a preferred embodiment of the present invention, both the second sealing ring and the first sealing ring are made of rubber blocks. The second sealing ring is adaptively abutted against a bottom of the placement box. The first sealing ring is adaptively abutted against an outer surface of the placement box.

[0013] The beneficial effects of the present invention are as follows: 1. This device has been redesigned so that the high-temperature liquid medicine steam moving towards the user's skin can change its direction in real time, thus avoiding scalding caused by the long-term action of the high-temperature steam on the skin surface due to its fixed movement direction. A placement box is provided to offer a support and placement space for the user's feet, and ventilation openings are arranged on the surface of the placement box to facilitate the entry of the liquid medicine steam into the interior of the placement box. Then, a rotatable moving ring and a fixing plate are arranged outside the placement box. The high-temperature liquid medicine steam from the inner cavity of the box is guided to the surfaces of the moving ring and the fixing plate through an exhaust pipe and a wind guide box, and part of the heat energy of the steam is converted into mechanical energy for the rotation of the moving ring, enabling the moving ring to rotate continuously. Then, through the air inlets I and II opened on the outer surface and the bottom of the moving ring, the high-temperature steam is introduced into the inner cavity of the placement box. Since the moving ring controls the passage of the high-temperature steam within the movable sealing rings I and II, the liquid medicine steam entering the inner cavity of the placement box through the sealing rings I and II can continuously change its direction, thus changing the direction of the high-temperature steam acting on the user's skin and avoiding scalding.

[0014] 2. This device also designs a water inlet pipe for one-way liquid injection. The functions of one-way liquid injection of the liquid medicine into the water inlet pipe and preventing the discharge of the liquid medicine steam are realized by using a support seat, a plug, and a spring located inside the water inlet pipe. By arranging a support seat on the upper part of the inner wall of the water inlet pipe, its top is fitted with a plug in a suitable manner to provide guiding support for the plug. Then, through the elastic force generated upward by the spring located inside the placement groove acting on the plug, the plug can always maintain contact with the top of the inner wall of the water inlet pipe to achieve the automatic sealing function. The diameter value of the plug is smaller than the inner diameter value of the inner wall of the water inlet pipe, so that the traditional Chinese medicine liquid can be injected and the steam can be prevented from discharging from the top opening of the water inlet pipe.

[0015] 3. Finally, the fixed columns and wooden rotating cylinders designed in this device can conveniently limit and support the user's feet, while massaging the acupoints on the sole of the foot, assisting the human body in promoting blood circulation to remove blood stasis, and enhancing the speed of human blood circulation, thus being more conducive to the absorption of traditional Chinese medicine by the human body. By arranging four groups of fixed columns in parallel at equal intervals in the front and back direction at the bottom of the inner wall of the placement box, which are used to provide rotating support for the fixed columns, the wooden rotating cylinders with grooves on their surfaces can not only provide support for the user's feet but also squeeze and massage the acupoints on the sole of the foot. This design enables the user's feet to further avoid the harm of high-temperature steam under the condition of small-range movement, and also massages the sole of the foot through the self-weight of the lower limbs in cooperation with the wooden rotating cylinders, thus being more beneficial to human health. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the internal structure of the box body of the present invention; Figure 2 It is a front three-dimensional schematic diagram of the box body of the present invention; Figure 3It is a schematic top sectional view of the box body of the present invention; Figure 4 It is a schematic side sectional view of the box body of the present invention; Figure 5 For the present invention Figure 4 An enlarged schematic view of the structure at position A in Figure 6 It is a schematic front sectional view of the box body of the present invention; Figure 7 For the present invention Figure 6 An enlarged schematic view of the structure at position B in Figure 8 It is a separated schematic view of the overall structure of the present invention.

[0017] In the figure: 1. Box body; 2. Heater; 3. Bottom plate; 4. Water inlet pipe; 41. Support seat; 42. Plug; 43. Placing groove; 44. Spring; 5. Exhaust pipe; 6. Air guide box; 7. Exhaust slot; 8. Placing box; 9. Ventilation opening; 10. Support ring; 11. Moving ring; 12. Fixed plate; 13. Air inlet one; 14. Sealing ring one; 15. Fixed column; 16. Wooden rotating cylinder; 17. Air inlet two; 18. Sealing ring two. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] As Figures 1 to 8 shown, the embodiment of the present invention provides a traditional Chinese medicine fumigation device, including a box body 1 and a heater 2. A bottom plate 3 is installed in the middle of the inner wall of the box body 1, and a placing box 8 and a support ring 10 are fixedly installed at the top of the inner wall of the box body 1. Ventilation openings 9 are provided on the outer surface and bottom of the placing box 8. A moving ring 11 is rotatably installed inside the support ring 10. Multiple fixed plates 12 are fixedly connected to the outer surface of the moving ring 11. An air inlet one 13 is provided on the outer surface of the moving ring 11, and an air inlet two 17 is provided at the bottom of the moving ring 11. Sealing rings one 14 and two 18 are fixedly connected to the inner wall of the moving ring 11 respectively, and both the sealing ring one 14 and the sealing ring two 18 are in contact with the surface of the placing box 8. Exhaust pipes 5 are fixedly communicated with the four corners of the top of the bottom plate 3. A guide box 6 is fixedly connected to the outer surface of the exhaust pipe 5. An exhaust slot 7 is provided inside the guide box 6. A fixed column 15 is fixedly connected to the inner wall of the placing box 8, and a wooden rotating cylinder 16 is movably sleeved on the outer surface of the fixed column 15; This device has been redesigned to enable the high-temperature liquid medicine steam moving towards the user's skin to change direction in real time, thus avoiding burns caused by the long-term action of the high-temperature steam on the skin surface due to the fixed movement direction. A placement box 8 is provided to offer a support and placement space for the user's feet, and ventilation openings 9 are formed on the surface of the placement box 8 to facilitate the entry of the liquid medicine steam into the interior of the placement box 8. Then, a rotatable moving ring 11 and a fixing plate 12 are arranged outside the placement box 8. The high-temperature liquid medicine steam from the inner cavity of the box body 1 is guided to the surfaces of the moving ring 11 and the fixing plate 12 through the exhaust pipe 5 and the air guide box 6, and part of the heat energy of the steam is converted into the mechanical energy for the rotation of the moving ring 11, enabling the moving ring 11 to rotate continuously. Then, through the air inlets 13 and 17 formed on the outer surface and the bottom of the moving ring 11, the high-temperature steam is introduced into the inner cavity of the placement box 8. Since the moving ring 11 controls the channel of the high-temperature steam within the movable sealing rings 14 and 18, the liquid medicine steam entering the inner cavity of the placement box 8 through the sealing rings 14 and 18 can continuously change direction, thus changing the direction of the high-temperature steam acting on the user's skin and avoiding burns.

[0020] Finally, the fixed columns 15 and the wooden rotating cylinders 16 designed in this device can conveniently limit and support the user's feet, and at the same time massage the acupoints on the sole of the foot, assisting the human body in promoting blood circulation to remove blood stasis and enhancing the speed of human blood circulation, thereby being more conducive to the human body's absorption of traditional Chinese medicine. By arranging four groups of equidistant fixed columns 15 in parallel front and back at the bottom of the inner wall of the placement box 8, which are used to provide rotational support for the fixed columns 15, the wooden rotating cylinders 16 with grooves on the surface can not only provide support for the user's feet but also squeeze and massage the acupoints on the sole of the foot. This design enables the user's feet to further avoid the harm of high-temperature steam under the condition of small-range movement, and also massages the sole of the foot by the self-weight of the lower limbs in cooperation with the wooden rotating cylinders 16, thus being more beneficial to human health.

[0021] Among them, the heater 2 is installed at the bottom of the inner wall of the box body 1 and is distributed in an "S" shape; the opening direction of the exhaust groove 7 is parallel to the tangent of the moving ring 11. The heater 2 is used to heat the traditional Chinese medicine liquid injected into the inner cavity of the box body 1 and make it boil to generate steam. The steam passes through the inside of the exhaust pipe 5 and the air guide box 6, horizontally rushes towards the inner side of the fixing plate 12, and drives the moving ring 11 to rotate synchronously.

[0022] Among them, a water inlet pipe 4 is fixedly connected to the left side of the top of the bottom plate 3. The upper part of the inner wall of the water inlet pipe 4 is fixedly provided with a support seat 41. The outer surface of the support seat 41 is fitted with a plug 42 in a matching manner. A placement groove 43 is formed at the bottom of the plug 42. The top end of the support seat 41 is adaptively inserted into the placement groove 43. A spring 44 is movably sleeved inside the placement groove 43. The two ends of the spring 44 are elastically connected to the placement groove 43 and the support seat 41 respectively; The device also designs a water inlet pipe 4 for one-way liquid inlet. The support seat 41, the plug 42 and the spring 44 located inside the water inlet pipe 4 are used to realize the function of one-way liquid injection of the water inlet pipe 4 and prevent the discharge of liquid medicine vapor. By providing a support seat 41 on the upper part of the inner wall of the water inlet pipe 4, its top end is fitted with a plug 42 in a matching manner and provides guiding support for the plug 42. Then, through the upward elastic force of the spring 44 located inside the placement groove 43 acting on the plug 42, the plug 42 can always maintain contact with the top of the inner wall of the water inlet pipe 4 to realize the automatic sealing function. The diameter value of the plug 42 is smaller than the inner diameter value of the inner wall of the water inlet pipe 4, so that traditional Chinese medicine liquid can be injected and prevent the steam from being discharged from the top opening of the water inlet pipe 4.

[0023] Among them, the axial cross-sectional shapes of the plug 42 and the support seat 41 are both "T" shaped. The top of the plug 42 is in contact with the top of the inner wall of the water inlet pipe 4. The diameter value of the plug 42 is larger than the top opening of the water inlet pipe 4 and smaller than the inner diameter value of the water inlet pipe 4; The plug 42 is in contact with the top of the inner wall of the water inlet pipe 4 through the elastic force of the spring 44 upward and forms a seal. The advantage of this design is that high-temperature steam will also move upward along the inner wall of the water inlet pipe 4 and generate pressure on the plug 42, making the plug 42 seal the top opening of the water inlet pipe 4 more tightly and with high reliability.

[0024] Among them, four groups of fixing columns 15 are arranged parallel to each other in the front and back. A plurality of groups of equally spaced grooves are formed on the outer surface of the wooden rotating cylinder 16, and arc transitions are provided; Four groups of fixing columns 15 are fixedly arranged at equal intervals parallel to each other in the front and back at the bottom of the inner wall of the placement box 8, which is used to provide rotational support for the fixing columns 15. The wooden rotating cylinder 16 with grooves engraved on its surface can not only provide support for the user's feet, but also squeeze and massage the acupoints on the sole of the foot.

[0025] Among them, the number of the first air inlets 13 is two groups, and they are symmetrically distributed on the front and back sides of the outer surface of the moving ring 11. The first air inlets 13 are communicated with the first sealing rings 14. The number of the second air inlets 17 is two groups, and they are symmetrically distributed on the left and right sides of the bottom of the inner wall of the moving ring 11. The second air inlets 17 are communicated with the second sealing rings 18; The first sealing ring 14 is connected to the first air inlet 13, and the second sealing ring 18 is connected to the second air inlet 17. The rotating moving ring 11 will drive the first sealing ring 14 and the second sealing ring 18 to continuously move along the surface of the placement box 8, so that the orientations of the second sealing ring 18 and the first sealing ring 14 on the surface of the placement box 8 can be continuously changed, thereby changing the direction of the high-temperature steam entering the inner cavity of the placement box 8.

[0026] Among them, the fixed plate 12 covers the first air inlet 13, and the outer edge of the fixed plate 12 is designed with an inclined corner, so that the outlet of the exhaust groove 7 can face the inner corner of the fixed plate 12 directly; The two-stage corner design of the fixed plate 12 can guide the high-temperature steam from the exhaust groove 7 toward the axis side of the moving ring 11, so as to maximize the guidance of the high-temperature steam, facilitate the work on the fixed plate 12 and the moving ring 11, and at the same time facilitate the high-temperature steam to enter the inner cavity of the placement box 8.

[0027] Among them, both the second sealing ring 18 and the first sealing ring 14 are made of rubber blocks. The second sealing ring 18 is adaptively abutted against the bottom of the placement box 8, and the first sealing ring 14 is adaptively abutted against the outer surface of the placement box 8; The second sealing ring 18 and the first sealing ring 14 respectively block the outer surface parts of the placement box 8 that are in contact with them, facilitating the directional movement of the high-temperature steam along the first sealing ring 14 and the second sealing ring 18.

[0028] Working principle: When the device is working, press down the plug 42 inside the water inlet pipe 4 and compress the spring 44, so that a gap is generated between the top of the inner wall of the water inlet pipe 4 and the top of the plug 42, thereby pouring the traditional Chinese medicine liquid into the bottom of the inner cavity of the box body 1 along the water inlet pipe 4. After filling is completed, release the plug 42, and it will abut against the top of the inner wall of the water inlet pipe 4 under the elastic force of the spring 44 to complete the automatic sealing of the water inlet pipe 4; Then, the user can put the feet into the inner cavity of the placement box 8 and place them on the wooden rotating cylinder 16 to obtain support. At this time, turn on the heater 2 and heat the liquid medicine in the inner cavity of the box body 1 to make it boil. The high-temperature steam generated by the boiling of the liquid medicine enters the long and narrow exhaust groove 7 inside the air guide box 6 along the exhaust pipe 5, and the speed increases. Finally, it impacts the surface of the fixed plate 12 in the horizontal direction along the opening of the exhaust groove 7, as Figure 3 shown. The fixed plate 12 with a corner guides the steam horizontally ejected from the exhaust groove 7 to the outer surface of the moving ring 11, and finally enters the inside of the first sealing ring 14 along the first air inlet 13. At the same time, the fixed plate 12 starts to drive the entire moving ring 11 to rotate around its own axis under the force, so that the first air inlet 13 and the second air inlet 17 are driven by the moving ring 11 to make a circular motion; Finally, the high-temperature steam generated by the liquid medicine enters the inner cavity of the placement box 8 through the air inlet 13 and the air inlet 17 respectively along the ventilation port 9, and acts on the foot area of the user. Since the moving ring 11 is continuously driven by the high-temperature steam, the orientations of the air inlet 13 and the air inlet 17 continuously change, thereby preventing the high-temperature liquid medicine steam from the air inlet 13 and the air inlet 17 from acting on one part for a long time. After the liquid medicine steam is discharged from the exhaust groove 7, a part of it enters the inside of the air inlet 17 downward and is discharged upward from the ventilation port 9 located at the bottom. The feet of the user can move back and forth on the outer surface of the wooden rotating cylinder 16, playing the role of massaging acupoints.

[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0030] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A traditional Chinese medicine fumigation device, comprising a box body (1) and a heater (2). The middle part of the inner wall of the box body (1) is provided with a bottom plate (3), and it is characterized in that: At the top of the inner wall of the box body (1), a placement box (8) and a support ring (10) are fixedly installed. Ventilation openings (9) are provided on the outer surface and the bottom of the placement box (8). A moving ring (11) is rotatably installed inside the support ring (10). A plurality of fixed plates (12) are fixedly connected to the outer surface of the moving ring (11). An air inlet one (13) is provided on the outer surface of the moving ring (11). An air inlet two (17) is provided at the bottom of the moving ring (11). A sealing ring one (14) and a sealing ring two (18) are respectively fixedly connected to the inner wall of the moving ring (11). The sealing ring one (14) and the sealing ring two (18) are both in contact with the surface of the placement box (8). At the four corners of the top of the bottom plate (3), exhaust pipes (5) are fixedly communicated. A wind guide box (6) is fixedly connected to the outer surface of the exhaust pipe (5). An exhaust groove (7) is provided inside the wind guide box (6). A fixed column (15) is fixedly connected to the inner wall of the placement box (8). A wooden rotating cylinder (16) is movably sleeved on the outer surface of the fixed column (15).

2. The traditional Chinese medicine fumigation device according to claim 1, wherein: The heater (2) is installed at the bottom of the inner wall of the box body (1) and is distributed in an "S" shape. The opening direction of the exhaust groove (7) is parallel to the tangent of the moving ring (11).

3. The traditional Chinese medicine fumigation device according to claim 2, wherein: On the left side of the top of the bottom plate (3), a water inlet pipe (4) is fixedly communicated. At the upper part of the inner wall of the water inlet pipe (4), a support seat (41) is fixedly installed. A plug (42) is properly sleeved on the outer surface of the support seat (41). A placement groove (43) is provided at the bottom of the plug (42). The top end of the support seat (41) is properly inserted into the placement groove (43). A spring (44) is movably sleeved inside the placement groove (43). The two ends of the spring (44) are elastically connected to the placement groove (43) and the support seat (41) respectively.

4. The traditional Chinese medicine fumigation device according to claim 3, characterized in that: The axial cross-sectional shapes of the plug (42) and the support seat (41) are both "T" shaped. The top of the plug (42) is in contact with the top of the inner wall of the water inlet pipe (4). The diameter value of the plug (42) is greater than the top opening of the water inlet pipe (4) and less than the inner diameter value of the water inlet pipe (4).

5. The traditional Chinese medicine fumigation device according to claim 4, characterized in that: The fixed columns (15) are arranged in four groups that are parallel to each other front and back. A plurality of equally spaced grooves are provided on the outer surface of the wooden rotating cylinder (16) and are provided with arc transitions.

6. The traditional Chinese medicine fumigation device according to claim 5, characterized in that: The number of the air inlets one (13) is two, and they are symmetrically distributed on the front and back sides of the outer surface of the moving ring (11). The air inlets one (13) are communicated with the sealing ring one (14). The number of the air inlets two (17) is two, and they are symmetrically distributed on the left and right sides of the bottom of the inner wall of the moving ring (11). The air inlets two (17) are communicated with the sealing ring two (18).

7. The traditional Chinese medicine fumigation device according to claim 6, characterized in that: The fixed plates (12) cover the air inlets one (13). The outer edge of the fixed plates (12) is designed with an inclined corner, so that the outlet of the exhaust groove (7) can be directly opposite to the inner corner of the fixed plates (12).

8. A traditional Chinese medicine fumigation device according to claim 7, characterized in that: Both the second sealing ring (18) and the first sealing ring (14) are made of rubber blocks. The second sealing ring (18) is adapted to abut against the bottom of the placement box (8), and the first sealing ring (14) is adapted to abut against the outer surface of the placement box (8).

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