Recyclable signboard frame for filling area of gas station

Abstract

The invention discloses a gas station filling area signboard frame capable of being recycled, and belongs to the technical field of gas station facilities, the gas station filling area signboard frame comprises a base mechanism, a hollow mounting box is assembled at the top end of the base mechanism, a glass window is fixedly connected in the marking side wall of the mounting box in an embedded mode, and a lamp holder and a signboard plate are arranged on the upper portion and the lower portion in the mounting box respectively; a lighting mechanism is assembled at the bottom end of the lamp holder close to the identification side, a signboard fixing mechanism is assembled at the bottom end of the lamp holder away from the identification side, the signboard plate is located on the side, away from the lighting mechanism, of the signboard fixing mechanism, the signboard plate and the signboard fixing mechanism are spaced to accommodate a signboard, and a lifting driving mechanism is assembled between the lamp holder and the signboard plate and the mounting box. The signboard is of a closed structure, the signboard cannot be affected by external environmental factors after being placed, and the service life of the signboard is prolonged.

Description

Technical Field

[0001] This invention belongs to the field of gas station facility technology, specifically relating to a reusable gas station refueling area sign frame. Background Technology

[0002] Gas station refueling area signage frame refers to a special structure designed specifically for gas station refueling areas, used to fix, support, and display various functional signs.

[0003] Chinese Patent Application No. 202421887871.5 discloses a reusable gas station sign holder, including a base, an adjustable sign mounting bracket at the top of the base, and a canopy at the top of the sign mounting bracket, which can accommodate different signs.

[0004] The above-mentioned existing technology has the following problems: the signs of the existing gas station sign racks are placed in the external environment, and wind and sun exposure can easily shorten the service life of the signs.

[0005] Therefore, a reusable gas station refueling area sign frame is designed to solve the above problems. Summary of the Invention

[0006] To address the problems mentioned in the background section, this invention provides a reusable gas station refueling area sign holder, which features increased sign lifespan, ease of replacement of different signs, reusability of the holder, convenient sign replacement, and improved sign visibility.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a reusable gas station refueling area sign holder, comprising: a base mechanism, a hollow mounting box mounted on the top of the base mechanism, a glass window embedded and fixed in the side wall of the mounting box, a lamp holder and a sign plate respectively arranged at the top and bottom of the mounting box, an illumination mechanism mounted on the bottom of the lamp holder near the sign side, and a sign fixing mechanism mounted on the bottom of the lamp holder away from the sign side, the sign plate located on the side of the sign fixing mechanism away from the illumination mechanism and the distance between the sign and the sign fixing mechanism is sufficient to accommodate the sign, a lifting drive mechanism is mounted between the lamp holder and the sign plate and the mounting box, a moving drive mechanism is mounted between the sign fixing mechanism and the mounting box, the lamp holder and the lifting drive mechanism, and a rotating drive mechanism is mounted between the sign plate and the mounting box and the lifting drive mechanism, and an movable opening is provided at the bottom of the mounting box to accommodate the passage and rotation of the sign plate.

[0008] Furthermore, the base mechanism includes a base plate placed on the gas station floor, with two support columns symmetrically fixed to the top of the base plate, and the tops of the two support columns being fixed to the bottom of the mounting box.

[0009] Furthermore, the lighting mechanism includes a first mounting groove at the bottom of the lamp holder near the marking side. Several LED lights are fixedly connected at equal intervals inside the first mounting groove. The wires of the several LED lights are twisted into a single strand and connected to an external power source through corresponding power holes on the lamp holder and the mounting box.

[0010] Furthermore, the sign fixing mechanism includes a second mounting groove at the bottom of the lamp holder away from the sign side. Two movable seats are symmetrically arranged inside the second mounting groove. A third mounting groove is formed on the side wall of the movable seats away from the second mounting groove. A fixed shaft is fixedly connected inside the third mounting groove. A connecting seat is connected to the fixed shaft through a bearing. Coil springs are elastically connected between the two sides of the connecting seat and the inner wall of the third mounting groove. A fixing plate is fixedly connected to the connecting seat away from the side wall of the third mounting groove.

[0011] Furthermore, the lifting drive mechanism includes a handle-loaded rotating shaft located inside the mounting box on the side of the signboard away from the fixed plate, a first rack and a second rack respectively fixed to the lamp holder and the sidewall of the signboard away from the sign, two fixed rods symmetrically arranged inside the mounting box, a movable screw rod located inside the second mounting groove, and a rotating shaft embedded and fixed inside the signboard. One end of the handle-loaded rotating shaft is connected to the sidewall of the mounting box via a bearing, and the other end extends through the mounting box to the outside and is connected to the through section via a bearing. A first gear is fixedly sleeved on the handle-loaded rotating shaft, and the first gear meshes with the first rack and the second rack. The fixed rod is located between the handle-loaded rotating shaft and the signboard, and its top and bottom ends are fixedly connected to the top and bottom ends of the mounting box, respectively. A lifting seat is movably sleeved on the fixed rod with an opening. Both ends of the movable screw rod pass through both ends of the lamp holder and the adjacent lifting seat and are connected to the through section via bearings. The movable seat is driven and connected to the movable screw rod via a transmission nut. Both ends of the rotating shaft pass through the adjacent lifting seat and are connected to the through section via bearings.

[0012] Furthermore, the moving drive mechanism includes two second gears fixedly sleeved at both ends of the moving screw, and two first mounting posts symmetrically fixed at the bottom of the mounting box. The first mounting posts are located near the marking side of the second gears, and a third rack is fixedly connected to the top of the first mounting posts. The third rack meshes with the second gears.

[0013] Furthermore, the rotary drive mechanism includes two third gears fixedly sleeved at both ends of the rotating shaft, and two second mounting posts symmetrically fixed at the bottom of the mounting box. The second mounting posts are located near the marking side of the third gears, and a fourth rack is fixedly connected to the top of the second mounting posts. The fourth rack meshes with the third gears.

[0014] Furthermore, a sealing plate is fixed inside the movable opening by hand-tightening screws.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention features a closed structure, ensuring that the signage is not affected by external environmental factors after placement, thus extending the lifespan of the signage.

[0016] 2. Through the cooperation of various mechanisms, this invention enables the sign to descend to the lowest point and rotate to a horizontal position when placed, and to rotate to a vertical position and rise to the highest point when displayed. This not only allows for the replacement of different signs and the recycling of the sign holder, but also makes the replacement of signs more convenient.

[0017] 3. The present invention uses an illumination mechanism, which can overcome the limitations of the placement range and improve the visibility of the sign. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a partial structural cross-sectional view of the present invention; Figure 3 This is another perspective view of a partial structure of the present invention; Figure 4 For the present invention Figure 3 Partial sectional view of the structure; Figure 5 This is another perspective view of a partial structure of the present invention; Figure 6 This is another perspective view of a partial structure of the present invention; In the diagram: 1. Mounting box; 2. Glass window; 3. Lamp holder; 4. Signboard; 5. Access opening; 101. Base plate; 102. Support column; 201. First mounting slot; 202. LED light; 301. Second mounting slot; 302. Fixing plate; 303. Movable seat; 304. Coil spring; 305. Third mounting slot; 306. Connecting seat; 307. Fixing shaft; 401. Rotating shaft with handle; 402. Fixed rod; 403. Rotating shaft; 404. Lifting seat; 405. Moving screw; 406. First rack; 407. Second rack; 408. First gear; 501. Second gear; 502. Third rack; 503. First mounting post; 601. Third gear; 602. Fourth rack; 603. Second mounting post; 701. Enclosed panel. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides the following technical solution: a reusable gas station refueling area sign frame, comprising: a base mechanism, a hollow mounting box 1 mounted on the top of the base mechanism, a glass window 2 embedded and fixed in the side wall of the mounting box 1, a lamp holder 3 and a sign plate 4 respectively arranged at the top and bottom of the mounting box 1, an illumination mechanism mounted on the bottom of the lamp holder 3 near the sign side, and a sign fixing mechanism mounted on the bottom of the lamp holder 3 away from the sign side, the sign plate 4 located on the side of the sign fixing mechanism away from the illumination mechanism and the distance between the sign fixing mechanism and the sign plate 4 is sufficient to accommodate the sign, a lifting drive mechanism is mounted between the lamp holder 3 and the sign plate 4 and the mounting box 1, a moving drive mechanism is mounted between the sign fixing mechanism and the mounting box 1, the lamp holder 3 and the lifting drive mechanism, a rotating drive mechanism is mounted between the sign plate 4 and the mounting box 1 and the lifting drive mechanism, and an active opening 5 is provided at the bottom of the mounting box 1 to accommodate the passage and rotation of the sign plate 4.

[0021] See appendix Figure 1-2 Before the gas station refueling area sign frame is used, the lifting drive mechanism is activated, which drives the lamp holder 3 and the sign plate 4 to descend. During the initial descent of the lamp holder 3, the moving drive mechanism is activated, which drives the sign fixing mechanism to move closer to each other until the moving drive mechanism can no longer move and stops. At this time, the sign fixing mechanism abuts against each other. During the descent of the sign plate 4 after a period of time, the rotation drive mechanism is activated, which drives the sign plate 4 to rotate through the movable opening 5 until the rotation drive mechanism can no longer move and stops. At this time, the sign plate 4 rotates to a horizontal position, waiting to place the sign. Place the signboard between the signboard plate 4 and the signboard fixing mechanism; The lifting drive mechanism moves, causing the lamp holder 3 and the signboard 4 to rise. During the initial rising process of the signboard 4, the rotation drive mechanism moves, causing the signboard 4 to rotate through the movable opening 5 until the rotation drive mechanism can no longer move and stops. At this time, the signboard 4 rotates to a vertical position. After the lamp holder 3 rises for a period of time, during the rising process, the moving drive mechanism moves, causing the signboard fixing mechanism to move in a direction away from each other, squeezing the signboard and pushing the signboard to make it flat until the moving drive mechanism can no longer move and stops. At this time, the signboard fixing mechanism fixes the signboard. When in use, the sign frame in the refueling area of ​​the gas station is powered on and illuminated by the lighting mechanism, and passersby can see the content of the sign through the glass window 2.

[0022] Specifically, the base mechanism includes a base plate 101 placed on the ground of the gas station, and two support columns 102 are symmetrically fixed to the top of the base plate 101. The tops of the two support columns 102 are fixed to the bottom of the mounting box 1.

[0023] See appendix Figure 1 The base mechanism supports and fixes the mounting box 1 through two support columns 102 placed on the top of the base plate 101 on the gas station ground, which has high stability.

[0024] Specifically, the lighting mechanism includes a first mounting groove 201 located at the bottom of the lamp holder 3 near the sign side. Several LED lights 202 are fixedly connected at equal intervals inside the first mounting groove 201. The wires of the several LED lights 202 are twisted together and connected to an external power source through corresponding power holes on the lamp holder 3 and the mounting box 1.

[0025] See appendix Figure 3 The lighting mechanism is illuminated by several powered LED lights 202.

[0026] Specifically, the sign fixing mechanism includes a second mounting groove 301 located at the bottom of the lamp holder 3 away from the sign side. Two movable seats 303 are symmetrically arranged inside the second mounting groove 301. A third mounting groove 305 is provided on the side wall of the movable seat 303 away from the second mounting groove 301. A fixed shaft 307 is fixedly connected inside the third mounting groove 305. A connecting seat 306 is connected to the fixed shaft 307 via a bearing. Coil springs 304 are elastically connected between the two sides of the connecting seat 306 and the inner wall of the third mounting groove 305. A fixing plate 302 is fixedly connected to the side wall of the connecting seat 306 away from the third mounting groove 305.

[0027] See appendix Figure 3-4 The sign fixing mechanism fixes the sign by pressing the sign on the sign plate 4 with two fixing plates 302.

[0028] Specifically, the lifting drive mechanism includes a handle-equipped rotating shaft 401 located inside the mounting box 1 on the side of the signboard 4 away from the fixed plate 302; a first rack 406 and a second rack 407 respectively fixed to the lamp holder 3 and the sidewall of the signboard 4 away from the sign; two fixed rods 402 symmetrically arranged inside the mounting box 1; a movable screw 405 disposed inside the second mounting groove 301; and a rotating shaft 403 embedded and fixed inside the signboard 4. One end of the handle-equipped rotating shaft 401 is connected to the sidewall of the mounting box 1 via a bearing, and the other end extends through the mounting box 1 to the outside and is connected to the through section via a bearing. A first gear 408 is fixedly sleeved on 401. The first gear 408 meshes with the first rack 406 and the second rack 407. The fixed rod 402 is located between the handle-loaded rotating shaft 401 and the sign plate 4, and its top and bottom ends are fixedly connected to the top and bottom ends of the mounting box 1, respectively. A lifting seat 404 is movably sleeved on the fixed rod 402. The two ends of the moving screw 405 pass through the two ends of the lamp holder 3 and the adjacent lifting seat 404, and are connected to the through section through bearings. The moving seat 303 is connected to the moving screw 405 through the transmission nut. The two ends of the rotating shaft 403 pass through the adjacent lifting seat 404, and are connected to the through section through bearings.

[0029] See appendix Figure 2 , 3 5 and 6, the lifting drive mechanism drives the handle-driven shaft 401 to rotate by rotating the handle-driven shaft 401. The handle-driven shaft 401 drives the first gear 408 to rotate. During the rotation of the first gear 408, the second rack 407 is driven to descend. The second rack 407 drives the signboard 4 to descend. As the second rack 407 ends, the first gear 408 continues to drive the first rack 406 to descend during the rotation. The first rack 406 drives the lamp holder 3 to descend. The reverse rotation of the shaft 401 with the handle causes the lamp holder 3 and the signboard 4 to rise.

[0030] Specifically, the moving drive mechanism includes two second gears 501 fixedly sleeved at both ends of the moving screw 405, and two first mounting posts 503 symmetrically fixed at the bottom of the mounting box 1. The first mounting posts 503 are located near the marking side of the second gears 501, and a third rack 502 is fixedly connected to the top of the first mounting posts 503. The third rack 502 meshes with the second gears 501.

[0031] See appendix Figure 2 The moving drive mechanism descends via the lamp holder 3, which in turn drives the moving screw 405 to descend. The moving screw 405 drives the two second gears 501 to descend. During the descent, the two second gears 501 come into contact with and rotate with the two third racks 502. During the rotation of the two second gears 501, the moving screw 405 rotates. During the rotation of the moving screw 405, the two fixed plates 302 move toward each other on the moving screw 405. The lamp holder 3 rises, driving the two fixed plates 302 to move away from each other on the moving screw 405.

[0032] Specifically, the rotary drive mechanism includes two third gears 601 fixedly sleeved at both ends of the rotary shaft 403, and two second mounting posts 603 symmetrically fixed at the bottom of the mounting box 1. The second mounting posts 603 are located near the marking side of the third gears 601, and a fourth rack 602 is fixedly connected to the top of the second mounting posts 603. The fourth rack 602 meshes with the third gears 601.

[0033] See appendix Figure 2 The rotary drive mechanism descends via the signboard 4, which in turn drives the rotary shaft 403 to descend. The rotary shaft 403 drives the two third gears 601 to descend. During the descent, the two third gears 601 come into contact with and rotate with the two fourth racks 602. As the two third gears 601 rotate, they drive the rotary shaft 403 to rotate, which in turn drives the signboard 4 to rotate.

[0034] Specifically, the active opening 5 is internally fixed with a sealing plate 701 by hand-tightening screws.

[0035] See appendix Figure 2 The sealing plate 701 improves the internal sealing of the mounting box 1.

[0036] The specific working principle of this invention: Before using the gas station refueling area sign frame, the sealing plate 701 is removed by turning the hand-tightening screw. Turning the handle of the shaft with handle 401 causes it to rotate, which in turn drives the first gear 408 to rotate. During this rotation, the first gear 408 causes the second rack 407 to descend, which in turn causes the sign plate 4 to descend. The sign plate 4 then causes the rotating shaft 403 to descend, which in turn causes the two lifting seats 404 to descend. The two lifting seats 404 then cause the moving screw 405 to descend, which in turn causes the lamp holder 3 and the two second gears 501 to descend. During this descent, the two second gears 501 contact and rotate with the two third racks 502. This rotation of the second gears 501 also drives the moving screw 405 to rotate. During this rotation, the two moving seats 303 move towards each other on the moving screw 405, causing the two moving seats 303 to move the two fixed plates 302 in the same direction until... The two second gears 501 disengage from the two third racks 502 and stop contacting each other. At this time, the two fixed plates 302 abut against each other, and the first gear 408 contacts the first rack 406. During the rotation of the first gear 408, it continues to drive the first rack 406 to descend. The first rack 406 drives the lamp holder 3 to descend. The lamp holder 3 drives the moving screw 405 to descend. The moving screw 405 drives the two lifting seats 404 to descend. The two lifting seats 404 drive the rotating shaft 403 to descend. The rotating shaft 403 drives the signboard 4 and the two third gears 601 to descend. During the descent of the two third gears 601, they contact and rotate with the two fourth racks 602. During the rotation of the two third gears 601, they drive the rotating shaft 403 to rotate. The rotating shaft 403 drives the signboard 4 to rotate. The signboard 4 drives the two fixed plates 302 to rotate until the two third gears 601 touch the bottom and can no longer rotate. At this time, the signboard 4 and the two fixed plates 302 rotate to a horizontal position, waiting to place the signboard. Place the sign between the signboard 4 and the two fixed plates 302; The handle of the rotating shaft 401 is rotated in the opposite direction, causing the shaft to rotate. The rotating shaft 401 then rotates the first gear 408. During this rotation, the first gear 408 causes the first rack 406 to rise, which in turn causes the lamp holder 3 to rise. The lamp holder 3 then causes the moving screw 405 and the two lifting seats 404 to rise. The two lifting seats 404 cause the rotating shaft 403 to rise, which in turn causes the signboard 4 and the two third gears 601 to rise. During this rise, the two third gears 601 contact and rotate with the two fourth racks 602. This rotation of the third gears 601 causes the rotating shaft 403 to rotate, which in turn causes the signboard 4 to rotate. The two fixed plates 302 rotate under the reset action of the coil spring 304 until the two third gears 601 disengage from the two fourth racks 602 and stop. At this point, the signboard 4 and the two fixed plates 302 rotate to a vertical position, and simultaneously the first gear 408 contacts the first... During the rotation of the first gear 408, the second rack 407 continues to rise, which in turn drives the signboard 4 to rise. The signboard 4 then drives the rotating shaft 403 to rise, which in turn drives the two lifting seats 404 to rise. The two lifting seats 404 then drive the moving screw 405 to rise, which in turn drives the lamp holder 3 and the two second gears 501 to rise. During the rise of the two second gears 501, they come into contact with and rotate with the two third racks 502. During the rotation of the two second gears 501, the moving screw 405 rotates. During the rotation of the moving screw 405, the two moving seats 303 move away from each other on the moving screw 405. The two moving seats 303 drive the two fixed plates 302 to move in the same direction, pressing the signboard and pushing it to make it flat until the two second gears 501 touch the top and can no longer rotate. At this point, the two fixed plates 302 are located at the two edges of the signboard and fix it in place. When in use, the sign frame in the refueling area of ​​the gas station is powered on, and several powered LED lights 202 illuminate the area. Passersby can see the content of the sign through the glass window 2.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reusable gas station refueling area sign frame, characterized in that, include: The base mechanism is equipped with a hollow mounting box (1) at the top. A glass window (2) is embedded and fixed in the side wall of the mounting box (1). A lamp holder (3) and a signboard (4) are respectively arranged inside the mounting box (1). A lighting mechanism is installed at the bottom of the lamp holder (3) near the sign side, and a sign fixing mechanism is installed at the bottom of the lamp holder (3) away from the sign side. The signboard (4) is located on the side of the sign fixing mechanism away from the lighting mechanism and the distance between the sign fixing mechanism and the signboard is sufficient to accommodate the signboard. A lifting drive mechanism is installed between the lamp holder (3) and the signboard (4) and the mounting box (1). A moving drive mechanism is installed between the sign fixing mechanism and the mounting box (1), the lamp holder (3) and the lifting drive mechanism. A rotating drive mechanism is installed between the signboard (4) and the mounting box (1) and the lifting drive mechanism. An active opening (5) is opened at the bottom of the mounting box (1) to accommodate the passage and rotation of the signboard (4).

2. The reusable gas station refueling area sign frame according to claim 1, characterized in that: The base mechanism includes a base plate (101) placed on the ground of the gas station. Two support columns (102) are symmetrically fixed to the top of the base plate (101), and the top of the two support columns (102) is fixed to the bottom of the mounting box (1).

3. The reusable gas station refueling area sign frame according to claim 2, characterized in that: The lighting mechanism includes a first mounting groove (201) opened at the bottom end of the lamp holder (3) near the sign side. Several LED lights (202) are fixedly connected at equal intervals inside the first mounting groove (201). The wires of the several LED lights (202) are twisted into a single strand and connected to an external power source through the corresponding power-conducting holes opened on the lamp holder (3) and the mounting box (1).

4. A reusable gas station refueling area sign frame according to claim 3, characterized in that: The sign fixing mechanism includes a second mounting groove (301) at the bottom of the lamp holder (3) away from the sign side. Two movable seats (303) are symmetrically arranged inside the second mounting groove (301). A third mounting groove (305) is opened on the side wall of the movable seat (303) away from the second mounting groove (301). A fixed shaft (307) is fixedly connected inside the third mounting groove (305). A connecting seat (306) is connected to the fixed shaft (307) through a bearing. Coil springs (304) are elastically connected between the two sides of the connecting seat (306) and the inner wall of the third mounting groove (305). A fixing plate (302) is fixedly connected to the side wall of the connecting seat (306) away from the third mounting groove (305).

5. A reusable gas station refueling area sign frame according to claim 4, characterized in that: The lifting drive mechanism includes a handle-equipped rotating shaft (401) located inside the mounting box (1) on the side of the signboard (4) away from the fixed plate (302), a first rack (406) and a second rack (407) respectively fixed to the lamp holder (3) and the side wall of the signboard (4) away from the sign, two fixed rods (402) symmetrically arranged inside the mounting box (1), a movable screw (405) arranged inside the second mounting groove (301), and a rotating shaft (403) embedded and fixed inside the signboard (4). One end of the handle-equipped rotating shaft (401) is connected to the side wall of the mounting box (1) through a bearing, and the other end extends through the mounting box (1) to the outside and is connected to the through section through a bearing. 01) A first gear (408) is fixedly sleeved on the upper part. The first gear (408) meshes with the first rack (406) and the second rack (407). The fixed rod (402) is located between the handle-handled rotating shaft (401) and the signboard (4), and its top and bottom ends are fixedly connected to the top and bottom ends of the mounting box (1), respectively. The fixed rod (402) has an opening and is movably sleeved with a lifting seat (404). The two ends of the moving screw (405) pass through the two ends of the lamp holder (3) and the adjacent lifting seat (404) and are connected to the through section through the bearing. The moving seat (303) is connected to the moving screw (405) through the transmission nut. The two ends of the rotating shaft (403) pass through the adjacent lifting seat (404) and are connected to the through section through the bearing.

6. A reusable gas station refueling area sign frame according to claim 5, characterized in that: The moving drive mechanism includes two second gears (501) fixedly sleeved at both ends of the moving screw (405) and two first mounting posts (503) symmetrically fixed at the bottom of the mounting box (1). The first mounting posts (503) are located near the marking side of the second gears (501). A third rack (502) is fixedly connected to the top of the first mounting posts (503), and the third rack (502) meshes with the second gears (501).

7. A reusable gas station refueling area sign frame according to claim 6, characterized in that: The rotary drive mechanism includes two third gears (601) fixedly sleeved at both ends of the rotating shaft (403) and two second mounting posts (603) symmetrically fixed at the bottom of the mounting box (1). The second mounting posts (603) are located near the marking side of the third gears (601). A fourth rack (602) is fixedly connected to the top of the second mounting posts (603), and the fourth rack (602) meshes with the third gears (601).

8. A reusable gas station refueling area sign frame according to claim 7, characterized in that: The movable opening (5) is fixed with a sealing plate (701) by hand-tightening screws.

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