Pressure sore prevention pad with adjustable thickness

Abstract

The utility model relates to the technical field of pressure sore prevention cushions, and particularly discloses a thickness-adjustable pressure sore prevention cushion which comprises a pressure sore prevention cushion body, an inflatable cushion and a bed board, the body, the inflatable cushion and the bed board are all horizontal, the inflatable cushion is detachably installed on the upper side of the bed board, the pressure sore prevention cushion body is located on the upper side of the inflatable cushion, an insertion hole is formed in the upper side of the bed board, and the insertion hole is formed in the upper side of the bed board. The lower side of the inflatable cushion is fixedly connected with an inserting rod, the inserting rod is installed in the inserting hole in an inserted mode, and the inserting rod is provided with a locking assembly used for locking sliding of the inserting rod. When the inflatable cushion needs to be replaced, an operator can unlock the locking assembly at first and then pull the insertion rod out of the insertion hole, so that the old inflatable cushion is conveniently detached from the bed board, then the insertion rod on a new inflatable cushion is inserted into the insertion hole, and finally the locking assembly is controlled to lock the insertion rod, and the inflatable cushion is replaced. The problem that the inflatable cushion is difficult to replace is solved on the whole.

Description

Technical Field

[0001] The present application relates to the technical field of anti-pressure sore pads, and in particular to an anti-pressure sore pad with adjustable thickness. Background Art

[0002] Pressure sores, also known as pressure ulcers and bedsores, are caused by long-term pressure on local tissues, continuous hypoxia, which leads to tissue ulceration and necrosis. Anti-pressure sore pads are often used to reduce pressure sores in patients.

[0003] A common anti-pressure sore pad with adjustable thickness includes an anti-pressure sore pad body, the interior of the anti-pressure sore pad body is hollow, and the anti-pressure sore pad body is filled with an air cushion. The top of the anti-pressure sore pad body is connected to an inflatable column, the inflatable column is connected to the air cushion in the anti-pressure sore pad body, and there are multiple inflatable columns distributed on the anti-pressure sore pad body.

[0004] With regard to the above-mentioned related technologies, it is difficult to replace the air cushion when it is damaged. Utility Model Content

[0005] In order to improve the problem of difficulty in replacing the air cushion, the present application provides an anti-pressure sore pad with adjustable thickness.

[0006] The present application provides an anti-pressure sore pad with adjustable thickness, which adopts the following technical solution:

[0007] A thickness-adjustable pressure sore prevention pad comprises an anti-pressure sore prevention pad body, an inflatable pad and a bed board, wherein the inflatable pad is located between the anti-pressure sore prevention pad body and the bed board, a plug hole is provided on the bed board, an insertion rod for inserting into the insertion hole is fixedly provided on the inflatable pad, and a locking assembly for locking the sliding of the insertion rod is provided on the insertion rod.

[0008] By adopting the above technical scheme, the operator changes the thickness of the inflatable cushion by inflating air into the inflatable cushion, and can also adjust the height of the anti-pressure sore cushion body; when the anti-pressure sore cushion body is subjected to pressure, the corresponding position of the inflatable cushion can shrink, so that the anti-pressure sore cushion body can fit the user more closely, reducing the local force on the user, which is conducive to reducing the occurrence of pressure sores; when the inflatable cushion needs to be replaced, the operator can first release the locking assembly and then pull the insertion rod out of the socket, so that the inflatable cushion can be removed from the bed board, and then the insertion rod on the new inflatable cushion can be inserted into the socket, and finally the locking assembly can be controlled to lock the insertion rod, thereby realizing the replacement of the inflatable cushion and improving the problem of difficulty in replacing the inflatable cushion as a whole.

[0009] Optionally, a limiting hole is provided on the bed board, the limiting hole is connected to the insertion hole, a mounting hole is provided on the side wall of the insertion rod corresponding to the limiting hole, and the locking assembly includes a block located in the mounting hole and an elastic member for driving the block to slide out of the mounting hole.

[0010] By adopting the above technical solution, after the insertion rod is inserted into the insertion hole, the limiting hole can be aligned with the mounting hole, and the elastic member can drive the block to be inserted into the limiting hole, thereby realizing automatic fixation of the insertion rod.

[0011] Optionally, a limiting groove is provided on a side wall of the mounting hole, a limiting block is fixedly provided on the clamping block, and the limiting block is located in the limiting groove.

[0012] By adopting the above technical solution, the limiting groove cooperates with the limiting block, which can reduce the slipping of the block from the mounting hole and improve the sliding stability of the block.

[0013] Optionally, a pressure plate is slidably installed in the limiting hole, and a portion of the pressure plate is exposed from the limiting hole.

[0014] By adopting the above technical solution, the pressing plate is pressed toward the card block, and the pressing plate can press the card block into the installation hole, making it convenient for the operator to pull the insertion rod out of the insertion hole.

[0015] Optionally, a heating pad is provided between the anti-pressure sore pad body and the inflatable pad.

[0016] By adopting the above technical solution, the heating pad is started, and the anti-pressure sore pad body on the upper side of the heating pad is heated.

[0017] Optionally, a mounting groove is provided on one side of the anti-pressure sore pad body close to the inflatable pad, and the heating pad is located in the mounting groove.

[0018] By adopting the above technical solution, the heating pad is located in the installation groove, which can reduce the bulge generated by the heating pad and is conducive to maintaining the flatness of the anti-pressure sore pad body.

[0019] Optionally, a water storage pad is provided in the mounting groove, and the water storage pad is located on a side of the heating pad away from the inflatable pad.

[0020] By adopting the above technical solution, the heating pad can heat the anti-pressure sore pad body more evenly with the help of the water storage pad, which is beneficial to ensuring the stability of the temperature of the anti-pressure sore pad body.

[0021] Optionally, a mounting box is provided on the side of the anti-pressure sore pad body away from the inflatable pad, a soft cushion is provided on the side of the mounting box away from the inflatable pad, a massage port is provided on the side of the mounting box away from the inflatable pad, and a massage component is provided at the massage port.

[0022] By adopting the above technical solution, after the user leans on the cushion, the user can be massaged by installing the components.

[0023] Optionally, the massage component includes a rotating rod and a massage protrusion, one end of the rotating rod is rotatably installed in the installation box, and the other end is connected to the massage protrusion, the massage protrusion is located in the massage port, and a driving component for driving the rotating rod to rotate is provided in the installation box.

[0024] By adopting the above technical solution, the driving component is started, and the driving component drives the rotating rod to rotate. When the rotating rod rotates, the massage protrusion can be driven to move, thereby achieving a massage effect.

[0025] Optionally, the driving assembly includes a servo motor, a first gear and a second gear, the servo motor is fixedly connected to the mounting box, the first gear is coaxially fixedly connected to the output shaft of the servo motor, the second gear is coaxially fixedly connected to the rotating rod, and the first gear is meshed with the second gear.

[0026] By adopting the above technical solution and starting the servo motor, the first gear can drive the second gear to rotate, thereby driving the rotating rod to rotate.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The operator changes the thickness of the inflatable cushion by inflating air into the inflatable cushion, and can also adjust the height of the anti-pressure sore cushion body; when the anti-pressure sore cushion body is subjected to pressure, the corresponding position of the inflatable cushion can shrink, so that the anti-pressure sore cushion body can fit the user more closely, reducing the local force on the user, which is conducive to reducing the occurrence of pressure sores; when the inflatable cushion needs to be replaced, the operator can first release the locking assembly, and then pull the plug rod out of the socket, so that the inflatable cushion can be removed from the bed board, and then the plug rod on the new inflatable cushion is inserted into the socket, and finally the locking assembly is controlled to lock the plug rod, so that the inflatable cushion can be replaced, which improves the problem of difficulty in replacing the inflatable cushion as a whole;

[0029] 2. After the insertion rod is inserted into the insertion hole, when the limiting hole is aligned with the mounting hole, the elastic member can drive the card block to be inserted into the limiting hole, thereby realizing automatic fixation of the insertion rod;

[0030] 3. The heating pad can heat the anti-pressure sore pad body more evenly with the help of the water storage pad, which is beneficial to ensure the stability of the temperature of the anti-pressure sore pad body. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0033] Figure 2 This is a partial structural diagram for demonstrating the installation of the plug-in rod;

[0034] Figure 3 yes Figure 2 A magnified schematic diagram of part A;

[0035] Figure 4 This is a partial structural diagram for demonstrating the installation of the heating pad;

[0036] Figure 5 This is a partial structural diagram for showing the installation box structure.

[0037] 1. Anti-pressure sore pad body; 11. Mounting groove; 12. Heating pad; 13. Water storage pad; 14. Fixing groove; 2. Inflatable pad; 21. Insert rod; 211. Mounting hole; 212. Limiting groove; 213. Limiting column; 3. Bed board; 31. Insert hole; 32. Limiting hole; 33. Limiting edge; 34. Air pump; 4. Locking assembly; 41. Block; 411. Limiting block; 42. Elastic member; 5. Pressing plate; 51. Sliding part; 52. Pressing part; 6. Mounting box; 61. Cushion; 62. Massage port; 7. Massage assembly; 71. Rotating rod; 72. Mounting plate; 73. Massage protrusion; 8. Driving assembly; 81. Servo motor; 82. First gear; 83. Second gear. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-5 This application is described in further detail.

[0039] The present application embodiment discloses an anti-pressure sore pad with adjustable thickness. Figure 1 and Figure 2A thickness-adjustable pressure sore cushion comprises an anti-pressure sore cushion body 1, an inflatable cushion 2 and a bed board 3. The anti-pressure sore cushion body 1, the inflatable cushion 2 and the bed board 3 are all horizontal. The inflatable cushion 2 is detachably mounted on the upper side of the bed board 3. The anti-pressure sore cushion body 1 is located on the upper side of the inflatable cushion 2. A plug hole 31 is provided on the upper side of the bed board 3. An insertion rod 21 is fixedly connected to the lower side of the inflatable cushion 2. The insertion rod 21 is plugged into the insertion hole 31. A locking component 4 is provided on the insertion rod 21 for locking the sliding of the insertion rod 21. The operator changes the thickness of the inflatable cushion 2 by inflating air into the inflatable cushion 2, thereby adjusting the height of the anti-pressure sore cushion body 1; when the anti-pressure sore cushion body 1 is subjected to pressure, the corresponding position of the inflatable cushion 2 contracts after being subjected to pressure, which can make the anti-pressure sore cushion body 1 fit the user better, reduce the local force on the user, and help reduce the occurrence of pressure sores; when the inflatable cushion 2 needs to be replaced, the operator can first unlock the locking assembly 4, and then pull the rod 21 out of the socket 31, so as to facilitate the removal of the old inflatable cushion 2 from the bed board 3, and then insert the rod 21 on the new inflatable cushion 2 into the socket 31, and finally control the locking assembly 4 to lock the rod 21, thereby realizing the replacement of the inflatable cushion 2, and overall improving the problem of difficulty in replacing the inflatable cushion 2.

[0040] The inflatable cushion 2 is a rectangular air cushion, and four insertion rods 21 are arranged corresponding to the four corners of the inflatable cushion 2. The bed board 3 is a rectangular board, and four insertion holes 31 are opened corresponding to the insertion rods 21 one by one. The four insertion rods 21 can fix the inflatable cushion 2 from the four corners of the inflatable cushion 2, thereby improving the installation stability of the inflatable cushion 2 and reducing the slippage of the inflatable cushion 2 on the bed board 3.

[0041] Reference Figure 2 and Figure 3 The opening direction of the plug hole 31 is vertical, a limiting hole 32 is provided on the side of the bed board 3, the opening direction of the limiting hole 32 is horizontal, and the limiting hole 32 is connected to the plug hole 31; a mounting hole 211 is provided on the side wall of the insertion rod 21 corresponding to the limiting hole 32, and the opening direction of the mounting hole 211 is parallel to the opening direction of the limiting hole 32.

[0042] The locking assembly 4 includes a block 41 and an elastic member 42. The block 41 is in the shape of a long strip and is slidably mounted in the mounting hole 211. The elastic member 42 is a spring, one end of which is welded to the bottom wall of the mounting hole 211, and the other end is welded to the end of the block 41. After the operator inserts the insertion rod 21 into the insertion hole 31, the limiting hole 32 can be aligned with and connected to the mounting hole 211, and the spring can drive the block 41 to partially slide out of the mounting hole 211, so that the block 41 is inserted into the limiting hole 32. The block 41 cooperates with the limiting hole 32 to lock the sliding of the insertion rod 21, thereby achieving fixed installation of the inflatable cushion 2.

[0043] When it is necessary to unlock the sliding lock of the insertion rod 21, the operator can press the block 41 to make the block 41 slide and retract back into the mounting hole 211. At this time, the operator can pull the insertion rod 21 out of the insertion hole 31, making it convenient for the operator to remove the inflatable mattress 2 from the bed board 3.

[0044] Reference Figure 1 and Figure 2 In order to reduce the slipping of the block 41 from the mounting hole 211, a limiting groove 212 is provided on the side wall of the mounting hole 211, the length direction of the limiting groove 212 is parallel to the opening direction of the mounting hole 211, and a limiting block 411 is integrally cast on the block 41, the limiting block 411 is located in the limiting groove 212, and both ends of the limiting groove 212 are closed. When the block 41 slides and moves away from the mounting hole 211, the limiting block 411 can abut against the inner side wall of the end of the limiting groove 212, and the limiting block 411 cooperates with the limiting groove 212 to limit the slipping of the block 41, thereby reducing the slipping of the block 41 from the limiting groove 212 and improving the stability of the slipping of the block 41 in the mounting hole 211.

[0045] The limiting groove 212 may be opened around the circumference of the mounting hole 211 , and the limiting block 411 may also be arranged around the clamping block 41 .

[0046] A limiting column 213 is fixedly installed in the mounting hole 211, and the length direction of the limiting column 213 is consistent with the opening direction of the mounting hole 211. The spring is sleeved on the limiting column 213, and the limiting column 213 can limit the expansion and contraction of the spring, which is beneficial to reduce the bending of the spring. A through hole is opened on the clamping block 41, and one end of the limiting column 213 is welded to the bottom wall of the mounting hole 211, and the other end is inserted into the through hole. The limiting column 213 can guide the sliding of the clamping block 41.

[0047] A pressing plate 5 is slidably mounted in the limiting hole 32, and the pressing plate 5 includes a sliding portion 51 and a pressing portion 52, which are integrally fixedly connected. The sliding portion 51 is connected to a side of the pressing portion 52 close to the insertion rod 21, and the side of the sliding portion 51 close to the insertion rod 21 is in contact with the surface of the insertion rod 21.

[0048] The circumferential side of the sliding portion 51 abuts against the inner side wall of the limiting hole 32, and a limiting edge 33 is integrally cast on the inner side wall of the limiting hole 32. The sliding portion 51 is located on the side of the limiting edge 33 close to the insertion rod 21. When the spring drives the clamping block 41 to slide, the clamping block 41 drives the sliding portion 51 to slide. When the limiting edge 33 abuts against the sliding portion 51, the limiting edge 33 can limit the sliding of the sliding portion 51, thereby reducing the slipping of the pressing plate 5 from the limiting hole 32.

[0049] The operator presses the pressing portion 52 in the direction of the insertion rod 21 , and the pressing plate 5 can press the clamping block 41 into the mounting hole 211 , making it convenient for the operator to pull the insertion rod 21 out of the insertion hole 31 .

[0050] Reference Figure 1 and Figure 4 An air pump 34 is fixedly installed on the side of the bed board 3, and the air outlet of the air pump 34 is connected to the inflatable cushion 2. When the operator starts the air pump 34, the inflatable cushion 2 can be inflated more conveniently, which is conducive to ensuring that the air in the inflatable cushion 2 is sufficient.

[0051] An installation groove 11 is opened on the lower side of the anti-pressure sore pad body 1, and a heating pad 12 and a water storage pad 13 are arranged in the installation groove 11. The heating pad 12 is laid on the upper side of the inflatable pad 2, and the heating pad 12 is a flexible pad. The water storage pad 13 is laid on the upper side of the heating pad 12, and the upper side of the water storage pad 13 is against the anti-pressure sore pad body 1.

[0052] The mounting groove 11 is conducive to ensuring the flatness of the anti-pressure sore pad body 1. When the heating pad 12 is turned on, the heating pad 12 can heat the water storage pad 13. After the water storage pad 13 is heated, it heats the anti-pressure sore pad body 1, which is conducive to evenly heating the anti-pressure sore pad body 1. The water storage pad 13 can store heat, which is conducive to ensuring the stability of the temperature of the anti-pressure sore pad body 1, thereby improving the comfort of the user after lying down.

[0053] The anti-pressure sore pad body 1 and the inflatable pad 2 can be detachably fixedly connected by Velcro, which reduces the slippage between the anti-pressure sore pad body 1 and the inflatable pad 2 and improves the installation stability of the anti-pressure sore pad body 1. When the inflatable pad 2 needs to be replaced, the operator can easily remove the inflatable pad 2 from the anti-pressure sore pad body 1.

[0054] Reference Figure 1 and Figure 5 A fixing groove 14 is provided on the upper side of the anti-pressure sore pad body 1, and an installation box 6 is detachably fixedly installed in the fixing groove 14. The upper side of the installation box 6 is exposed from the fixing groove 14, and the fixing groove 14 improves the installation stability of the installation box 6; the upper side of the installation box 6 is arc-shaped, and the position of the installation box 6 is located at the head of the bed of the anti-pressure sore pad, and a soft cushion 61 is laid on the upper side of the installation box 6. After the user lies on the anti-pressure sore pad body 1, the user's head can lean on the soft cushion 61, thereby achieving support for the head.

[0055] A massage opening 62 is provided on the upper side of the installation box 6, and a massage component 7 is provided at the massage opening 62. The massage component 7 can massage the user's head, thereby improving the comfort of the user when lying on the anti-pressure sore pad.

[0056] The massage assembly 7 includes a rotating rod 71, a mounting plate 72 and a massage protrusion 73. The rotating rod 71 is vertical and is rotatably mounted on the bottom wall of the mounting box 6. The mounting plate 72 is coaxially welded to the upper end of the rotating rod 71. The massage protrusion 73 is fixedly mounted on the upper side of the mounting plate 72, and a plurality of massage protrusions 73 are sequentially arranged around the axis of the rotating rod 71. The massage protrusion 73 is located in the massage port 62. A driving assembly 8 for driving the rotating rod 71 to rotate is arranged in the mounting box 6. When the driving assembly 8 is started to drive the rotating rod 71 to rotate, the rotating plate drives the massage protrusion 73 to rotate, and the massage protrusion 73 can achieve a massage effect.

[0057] The upper side of the massage protrusion 73 is in an arc shape, which is conducive to relatively gentle massage of the user's head. The massage protrusion 73 can be a rubber protrusion, and the rubber is elastic, which is conducive to making the massage protrusion 73 relatively gentle to the user, thereby improving the user's massage experience.

[0058] The driving assembly 8 includes a servo motor 81, a first gear 82 and a second gear 83. The servo motor 81 is fixedly installed in the installation box 6, and the output shaft of the servo motor 81 is vertical. The first gear 82 is coaxially welded on the output shaft of the servo motor 81, and the second gear 83 is coaxially welded on the rotating rod 71, and the first gear 82 is meshed with the second gear 83.

[0059] When the servo motor 81 is started, the first gear 82 can drive the second gear 83 to rotate, and the second gear 83 can drive the rotating rod 71 to rotate, thereby realizing the rotation of the rotating rod 71.

[0060] The rotating rod 71, the mounting plate 72 and the second gear 83 can be arranged in multiple numbers around the first gear 82 in a one-to-one correspondence. The cooperation of multiple mounting plates 72 can increase the massage area, thereby enhancing the massage effect on the user.

[0061] The implementation principle of the thickness-adjustable anti-pressure sore pad in the embodiment of the present application is as follows: the operator changes the thickness of the inflatable pad 2 by inflating air into the inflatable pad 2, and can also adjust the height of the anti-pressure sore pad body 1; when the anti-pressure sore pad body 1 is subjected to pressure, the corresponding position of the inflatable pad 2 shrinks after being subjected to pressure, which can make the anti-pressure sore pad body 1 fit the user more closely, reduce the local force on the user, and help reduce the occurrence of pressure sores; when the inflatable pad 2 needs to be replaced, the operator can first unlock the locking assembly 4, and then pull the insertion rod 21 out of the socket 31, so that the old inflatable pad 2 can be removed from the bed board 3, and then the insertion rod 21 on the new inflatable pad 2 is inserted into the socket 31, and finally the locking assembly 4 is controlled to lock the insertion rod 21, thereby realizing the replacement of the inflatable pad 2, and overall improving the problem of difficulty in replacing the inflatable pad 2.

[0062] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0063] The above are all optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A thickness-adjustable anti-pressure sore pad, characterized in that: The invention comprises an anti-pressure sore pad body, an inflatable pad and a bed board, wherein the inflatable pad is located between the anti-pressure sore pad body and the bed board, a plug hole is arranged on the bed board, an insertion rod for inserting into the plug hole is fixedly arranged on the inflatable pad, and a locking assembly for locking the sliding of the insertion rod is arranged on the insertion rod.

2. The thickness-adjustable anti-pressure sore pad according to claim 1, characterized in that: A limiting hole is provided on the bed board, the limiting hole is communicated with the insertion hole, a mounting hole is provided on the side wall of the insertion rod corresponding to the limiting hole, and the locking assembly includes a block located in the mounting hole and an elastic member for driving the block to slide out of the mounting hole.

3. The thickness-adjustable anti-pressure sore pad according to claim 2, characterized in that: A limiting groove is arranged on the side wall of the mounting hole, a limiting block is fixedly arranged on the clamping block, and the limiting block is located in the limiting groove.

4. The thickness-adjustable anti-pressure sore pad according to claim 3, characterized in that: A pressing plate is slidably installed in the limiting hole, and a portion of the pressing plate is exposed from the limiting hole.

5. The thickness-adjustable anti-pressure sore pad according to claim 1, characterized in that: A heating pad is arranged between the anti-pressure sore pad body and the inflatable pad.

6. The thickness-adjustable anti-pressure sore pad according to claim 5, characterized in that: A mounting groove is provided on one side of the anti-pressure sore pad body close to the inflatable pad, and the heating pad is located in the mounting groove.

7. The thickness-adjustable anti-pressure sore pad according to claim 6, characterized in that: A water storage pad is arranged in the installation groove, and the water storage pad is located at a side of the heating pad away from the inflatable pad.

8. The thickness-adjustable anti-pressure sore pad according to claim 1, characterized in that: A mounting box is arranged on the side of the anti-pressure sore pad body away from the inflatable pad, a soft cushion is arranged on the side of the mounting box away from the inflatable pad, a massage port is arranged on the side of the mounting box away from the inflatable pad, and a massage component is arranged at the massage port.

9. The thickness-adjustable anti-pressure sore pad according to claim 8, characterized in that: The massage component includes a rotating rod and a massage protrusion. One end of the rotating rod is rotatably installed in the installation box, and the other end is connected to the massage protrusion. The massage protrusion is located in the massage port. A driving component for driving the rotating rod to rotate is arranged in the installation box.

10. The thickness-adjustable anti-pressure sore pad according to claim 9, characterized in that: The driving assembly includes a servo motor, a first gear and a second gear. The servo motor is fixedly connected to the mounting box, the first gear is coaxially fixedly connected to the output shaft of the servo motor, the second gear is coaxially fixedly connected to the rotating rod, and the first gear is meshed with the second gear.

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