Maintenance and repair equipment for road construction

Abstract

The present invention discloses a maintenance and repair device for road construction, which relates to the technical field of road repair, and includes a mounting frame, wherein a movable wheel and a rolling roller are arranged below the mounting frame, wherein the rolling roller is composed of a plurality of connecting rollers, wherein the connecting roller is installed by a mounting mechanism, wherein the height of the rolling roller is adjusted by an adjusting mechanism, wherein the mounting mechanism includes a movable groove, wherein the movable groove is arranged on both sides of the mounting frame, and further includes a reinforcing mechanism. The present invention sets a mounting mechanism, wherein the rotating block rotates to drive the movable frame to slide in the movable groove, and the two movable frames move in opposite directions, thereby driving the mounting seat and the moving wheel to move, and at the same time, the displacement of the mounting seat drives the insertion rod to move through the displacement seat, and the insertion rod is inserted into the connecting roller to position the connecting roller until the connecting roller contacts the displacement seat, thereby completing the installation of the rolling roller; the present invention facilitates the assembly of the rolling roller by selecting a suitable number of connecting rollers, so as to adapt to the repair work of compacting the ground of different widths.

Description

Technical Field

[0001] The invention relates to the technical field of road repair, in particular to a maintenance and repair device for road construction. Background Art

[0002] After long-term use, the road surface is inevitably damaged, and it is necessary to repair the road surface. When repairing the road surface locally, since the area to be repaired is small, there is no need to use large construction equipment. Generally, it is necessary to clean the pits, then pour asphalt on the damaged part of the road surface, and then use a rolling roller to flatten and compact the asphalt. However, the length of the rolling roller is fixed, which is difficult to adapt to roads of different widths. In order to achieve the purpose of conveniently adjusting the length of the rolling roller, a maintenance and repair device for road construction is provided. Summary of the invention

[0003] The purpose of the present invention is to provide a maintenance and repair device for road construction in order to facilitate the adjustment of the length of the rolling roller.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a maintenance and repair device for road construction, comprising a mounting frame, a movable wheel and a rolling roller are arranged below the mounting frame, the rolling roller is composed of a plurality of connecting rollers, the connecting roller is installed by a mounting mechanism, and the height of the rolling roller is adjusted by an adjusting mechanism; the mounting mechanism comprises a movable groove, the movable groove is arranged on both sides of the mounting frame, the inner wall of the movable groove is slidably connected with a movable frame, the top of the movable frame is fixedly connected with a connecting plate, the inside of the mounting frame is rotatably connected with a threaded rod passing through the connecting plate, the outer wall of the threaded rod is fixedly connected with a first bevel gear, the inner wall of the mounting frame located at the first bevel gear is rotatably connected with a second bevel gear, the top of the second bevel gear is fixedly connected with a rotating block, the bottom end of the movable frame is fixedly connected with a mounting seat, a displacement seat is arranged on one side of the mounting seat, the outer wall of the displacement seat is fixedly connected with a plug rod, a docking groove is arranged at one end of the connecting roller, and a docking block is fixedly connected at the other end of the connecting roller, and the position of the movable frame is reinforced by a reinforcement mechanism.

[0005] As a further scheme of the present invention: the adjusting mechanism includes a slider, which is fixedly connected to the outer wall of the mounting seat, a fixing groove is provided at one end of the slider, a sliding groove is provided on the outer wall of the displacement seat away from the insertion rod, the slider is slidably connected to the inner wall of the sliding groove, a groove is provided at the top of the displacement seat, the inner wall of the groove is rotatably connected with a rotating plate, one end of the rotating plate is fixedly connected with a spur gear, a displacement plate is provided at the bottom end of the spur gear, the displacement plate is slidably connected to the interior of the displacement seat, the outer wall of the displacement plate is fixedly connected with a fixing block, the fixing block extends to the inner wall of the sliding groove, the interior of the rotating plate is symmetrically slidably connected with a card block extending from the rotating plate, and a spring is connected between the two card blocks.

[0006] As a further solution of the present invention: the reinforcement mechanism includes a reinforcement groove, which is opened at the bottom end of the movable groove, the bottom end of the inner wall of the slide groove is fixedly connected to a vertical plate, one end of the sliding block is opened with a vertical groove, the interior of the movable frame is slidingly connected to a pushing frame, the outer wall of the pushing frame is fixedly connected to a first elastic sheet, the interior of the movable frame is slidingly connected to a reinforcement block extending from the movable frame, the top of the reinforcement block is fixedly connected to a second elastic sheet, one end of the pushing frame extends to the inner cavity of the vertical groove, and the other end of the pushing frame passes through the reinforcement block and is fixedly connected to the pushing block.

[0007] As a further solution of the present invention: the inner wall of the movable groove fits with the outer wall of the movable frame, the outer wall of the threaded rod is symmetrically provided with external threads, the outer wall of the connecting plate is provided with threaded holes, the threaded holes match the external threads, and the first bevel gear is meshed with the second bevel gear.

[0008] As a further solution of the present invention: the outer wall of the insertion rod is in contact with the inner wall of the connecting roller, and the inner wall of the docking groove is in contact with the outer wall of the docking block.

[0009] As a further solution of the present invention: the outer wall of the slider is in a T-shape, and the outer wall of the slider fits with the inner wall of the slide groove.

[0010] As a further solution of the present invention: a tooth groove is provided at the top of the displacement plate, and the tooth groove is meshed with the spur gear.

[0011] As a further solution of the present invention: the outer wall of the fixing block is in contact with the inner wall of the fixing groove, and the shape of the clamping block is L-shaped.

[0012] As a further solution of the present invention: the outer wall of the vertical plate is in contact with the inner wall of the vertical slot, and a semicircular surface is provided at one end of the pushing frame located in the inner cavity of the vertical slot.

[0013] As a further solution of the present invention: the outer wall of the bottom end of the reinforcement block is in contact with the inner wall of the reinforcement groove, the outer wall of the reinforcement block is provided with an inclined surface, the pushing block is in contact with the inclined surface, and the outer wall of the reinforcement block is provided with a through groove for the pushing frame to slide.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By setting up the installation mechanism, the rotating block rotates to drive the movable frame to slide in the movable groove, and the two movable frames move in opposite directions, thereby driving the installation seat and the moving wheel to move. At the same time, the installation seat moves through the displacement seat to drive the insertion rod to move. The insertion rod is inserted into the connecting roller to position the connecting roller until the connecting roller contacts the displacement seat, and the installation of the rolling roller is completed. The present invention facilitates the assembly of the rolling roller by selecting a suitable number of connecting rollers to adapt to the repair work of compacting the ground of different widths.

[0016] 2. By setting an adjustment mechanism and a reinforcement mechanism, the displacement seat is pushed to move. At this time, the slider slides in the slide groove until the rolling roller contacts the ground, and then the card block is pushed to move, and the card block is pushed to move into the rotating plate, causing compression on the spring, and the rotating plate is turned horizontally. The rotating plate rotates to drive the spur gear to rotate, and the spur gear rotates to drive the displacement plate to move. The displacement of the displacement plate drives the fixed block to insert into the fixed groove, and the slider is fixed in the slide groove, thereby fixing the height of the displacement seat. The present invention facilitates the rapid adjustment of the height of the rolling roller, and can prevent the movable frame from loosening when the rolling roller is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a schematic diagram of the internal structure of the mounting frame of the present invention;

[0019] Figure 3 It is a schematic diagram of the internal structure of the connecting roller of the present invention;

[0020] Figure 4 It is a schematic diagram of the installation of the displacement seat of the present invention;

[0021] Figure 5 It is a schematic diagram of the internal structure of the displacement seat of the present invention;

[0022] Figure 6 It is a schematic diagram of the installation position structure of the rotating plate, the spur gear and the displacement plate of the present invention;

[0023] Figure 7 It is a schematic diagram of the installation of the push frame of the present invention;

[0024] Figure 8 It is a schematic structural diagram of the reinforcement block of the present invention.

[0025] In the figure: 1, mounting frame; 2, moving wheel; 3, connecting roller; 4, mounting mechanism; 401, movable groove; 402, movable frame; 403, connecting plate; 404, threaded rod; 405, first bevel gear; 406, second bevel gear; 407, rotating block; 408, mounting seat; 409, displacement seat; 410, insertion rod; 411, docking block; 412, docking groove; 5, adjustment mechanism; 501, slider; 502, fixed groove; 503, slide groove; 504, groove; 505, rotating plate; 506, spur gear; 507, displacement plate; 508, fixed block; 509, clamping block; 510, spring; 6, reinforcement mechanism; 601, reinforcement groove; 602, vertical plate; 603, vertical groove; 604, pushing frame; 605, first elastic sheet; 606, reinforcement block; 607, second elastic sheet; 608, pushing block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0028] See also Figures 1 to 8In the embodiment of the present invention, the maintenance and repair device for road construction includes a mounting frame 1, a movable wheel 2 and a rolling roller are arranged below the mounting frame 1, the rolling roller is composed of a plurality of connecting rollers 3, the connecting rollers 3 are installed by a mounting mechanism 4, the height of the rolling roller is adjusted by an adjusting mechanism 5, the mounting mechanism 4 includes a movable groove 401, the movable groove 401 is opened on both sides of the mounting frame 1, the inner wall of the movable groove 401 is slidably connected with a movable frame 402, the top of the movable frame 402 is fixedly connected with a connecting plate 403, the interior of the mounting frame 1 is rotatably connected with a threaded rod 404 that penetrates the connecting plate 403, and the screw rod 404 is screwed into the mounting frame 1. The outer wall of the grooved rod 404 is fixedly connected to the first bevel gear 405, the inner part of the mounting frame 1 is located on the outer wall of the first bevel gear 405 and is rotatably connected to the second bevel gear 406, the top of the second bevel gear 406 is fixedly connected to the rotating block 407, the bottom end of the movable frame 402 is fixedly connected to the mounting seat 408, a displacement seat 409 is provided on one side of the mounting seat 408, the outer wall of the displacement seat 409 is fixedly connected to the insertion rod 410, a docking groove 412 is provided at one end of the connecting roller 3, and a docking block 411 is fixedly connected to the other end of the connecting roller 3, and the position of the movable frame 402 is reinforced by the reinforcement mechanism 6.

[0029] In this embodiment, when assembling the rolling roller, a suitable number of connecting rollers 3 are selected, and the docking block 411 is inserted into the docking groove 412, so that the rolling roller is assembled to adapt to the repair work of compacting the ground of different widths.

[0030] When the movable frame 402 is displaced, the rotating block 407 is rotated, and the rotating block 407 rotates to drive the second bevel gear 406 to rotate, and the second bevel gear 406 rotates to drive the first bevel gear 405 to rotate, and the first bevel gear 405 rotates to drive the threaded rod 404 to rotate, and the threaded rod 404 rotates to drive the connecting plate 403 to displace, and the displacement of the connecting plate 403 drives the movable frame 402 to slide in the movable groove 401, and the two movable frames 402 move in the opposite direction, thereby driving the mounting seat 408 and the moving wheel 2 to displace, and at the same time, the displacement of the mounting seat 408 drives the insertion rod 410 to displace through the displacement seat 409, and the insertion rod 410 is inserted into the connecting roller 3 to position the connecting roller 3 until the connecting roller 3 contacts the displacement seat 409, and the installation of the rolling roller is completed. This design facilitates the adjustment of the overall length of the rolling roller by selecting a suitable number of connecting rollers 3.

[0031] Please refer to Figures 4 to 6The adjusting mechanism 5 includes a slider 501, which is fixedly connected to the outer wall of the mounting seat 408, a fixing groove 502 is provided at one end of the slider 501, a sliding groove 503 is provided on the outer wall of the displacement seat 409 away from the insertion rod 410, the slider 501 is slidably connected to the inner wall of the sliding groove 503, a groove 504 is provided at the top of the displacement seat 409, and a rotating plate 505 is rotatably connected to the inner wall of the groove 504, a spur gear 506 is fixedly connected to one end of the rotating plate 505, and a displacement plate 507 is provided at the bottom end of the spur gear 506, and the displacement plate 507 is slidably connected to the inside of the displacement seat 409, and a fixing block 508 is fixedly connected to the outer wall of the displacement plate 507, and the fixing block 508 extends to the inner wall of the sliding groove 503, and a card block 509 extending from the rotating plate 505 is symmetrically slidably connected to the inside of the rotating plate 505, and a spring 510 is connected between the two card blocks 509.

[0032] The slider 501 is fixed in the slide groove 503, thereby fixing the height of the displacement seat 409 and completing the height adjustment of the rolling roller. Then, the block 509 is released, and the block 509 is reset by the elastic force of the spring 510. The outer wall of the block 509 fits the inner wall of the groove 504, thereby fixing the rotating plate 505.

[0033] Please refer to Figures 2 to 8 The reinforcement mechanism 6 includes a reinforcement groove 601, which is opened at the bottom end of the movable groove 401, and the bottom end of the inner wall of the slide groove 503 is fixedly connected with a vertical plate 602. A vertical groove 603 is opened at one end of the slider 501, and the inner sliding connection of the movable frame 402 is connected with a pushing frame 604, and the outer wall of the pushing frame 604 is fixedly connected with a first elastic sheet 605. The inner sliding connection of the movable frame 402 is connected with a reinforcement block 606 extending from the movable frame 402, and the top of the reinforcement block 606 is fixedly connected with a second elastic sheet 607. One end of the pushing frame 604 extends to the inner cavity of the vertical groove 603, and the other end of the pushing frame 604 passes through the reinforcement block 606 and is fixedly connected with a pushing block 608.

[0034] In this embodiment: when the slider 501 is located at the bottom end of the inner wall of the slide groove 503, the vertical plate 602 is inserted into the vertical groove 603 and contacts the pushing frame 604, pushing the pushing frame 604 to move, the displacement of the pushing frame 604 drives the pushing block 608 to move, the displacement of the pushing block 608 drives the reinforcing block 606 to move, causing the second elastic sheet 607 to be squeezed, and the reinforcing block 606 moves out of the reinforcing groove 601, canceling the fixation of the movable frame 402, and the movable frame 402 can be displaced at this time; when the slider 501 is separated from the bottom end of the inner wall of the slide groove 503, the vertical plate 602 is separated from the pushing frame 604, and the reinforcing block 606 is inserted into the reinforcing groove 601 under the elastic force of the second elastic sheet 607 to fix the movable frame 402 to prevent the movable frame 402 from loosening when the rolling roller is used, thereby affecting the flattening effect. The present invention facilitates rapid adjustment of the height of the rolling roller and can prevent the movable frame 402 from loosening when the rolling roller is in use.

[0035] Please refer to Figures 1 to 3 The inner wall of the movable groove 401 fits with the outer wall of the movable frame 402, the outer wall of the threaded rod 404 is symmetrically provided with external threads, the outer wall of the connecting plate 403 is provided with threaded holes, the threaded holes match the external threads, and the first bevel gear 405 is meshed with the second bevel gear 406.

[0036] In this embodiment: the rotation of the rotating block 407 drives the second bevel gear 406 to rotate, the rotation of the second bevel gear 406 drives the first bevel gear 405 to rotate, the rotation of the first bevel gear 405 drives the threaded rod 404 to rotate, the rotation of the threaded rod 404 drives the connecting plate 403 to displace, the displacement of the connecting plate 403 drives the movable frame 402 to slide in the movable groove 401, and the two movable frames 402 move in opposite directions, thereby driving the mounting seat 408 and the movable wheel 2 to displace.

[0037] Please refer to Figures 1 to 3 The outer wall of the insert rod 410 fits with the inner wall of the connecting roller 3 , and the inner wall of the docking groove 412 fits with the outer wall of the docking block 411 .

[0038] In this embodiment: a suitable number of connecting rollers 3 are selected, and the docking block 411 is inserted into the docking groove 412 to assemble the rolling roller; when the mounting seat 408 is displaced, the insertion rod 410 can be driven to displace through the displacement seat 409, and the insertion rod 410 is inserted into the connecting roller 3 to position the connecting roller 3.

[0039] Please refer to Figures 4 to 6 The outer wall of the slider 501 is in a T-shape, and the outer wall of the slider 501 fits with the inner wall of the slide groove 503 .

[0040] In this embodiment: the displacement seat 409 is pushed to move, and the slider 501 slides in the slide groove 503 until the rolling roller contacts the ground.

[0041] Please refer to Figures 4 to 6 A tooth groove is provided at the top of the displacement plate 507, the tooth groove is meshed with the spur gear 506, the outer wall of the fixing block 508 is fitted with the inner wall of the fixing groove 502, and the shape of the clamping block 509 is L-shaped.

[0042] In this embodiment: the rotating plate 505 is rotated horizontally, the rotating plate 505 rotates to drive the spur gear 506 to rotate, the spur gear 506 rotates to drive the displacement plate 507 to displace, the displacement of the displacement plate 507 drives the fixed block 508 to be inserted into the fixed groove 502, and the slider 501 is fixed in the slide groove 503.

[0043] Please refer to Figures 2 to 8 The outer wall of the vertical plate 602 is in contact with the inner wall of the vertical groove 603 , and a semicircular surface is provided at one end of the pushing frame 604 located in the inner cavity of the vertical groove 603 .

[0044] In this embodiment, when the slider 501 is located at the bottom of the inner wall of the slide groove 503, the vertical plate 602 is inserted into the vertical groove 603 and contacts the push frame 604, pushing the push frame 604 to move, and the displacement of the push frame 604 drives the push block 608 to move.

[0045] Please refer to Figures 2 to 8 The outer wall of the bottom end of the reinforcing block 606 is in contact with the inner wall of the reinforcing groove 601, and the outer wall of the reinforcing block 606 is provided with an inclined surface, and the pushing block 608 is in contact with the inclined surface. The outer wall of the reinforcing block 606 is provided with a through groove for the pushing frame 604 to slide.

[0046] In this embodiment: the pushing block 608 is displaced and contacts the inclined surface provided on the outer wall of the reinforcing block 606, pushing the reinforcing block 606 to be displaced, squeezing the second elastic sheet 607, and the reinforcing block 606 is displaced out of the reinforcing groove 601, canceling the fixation of the movable frame 402, and the movable frame 402 can be displaced at this time.

[0047] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A road maintenance and repair device, comprising a mounting frame (1), wherein a moving wheel (2) and a rolling roller are arranged below the mounting frame (1), characterized in that: The rolling roller is composed of a plurality of connecting rollers (3), the connecting rollers (3) are installed by means of a mounting mechanism (4), and the height of the rolling roller is adjusted by means of an adjustment mechanism (5); the mounting mechanism (4) comprises a movable groove (401), the movable groove (401) is provided on both sides of the mounting frame (1), the inner wall of the movable groove (401) is slidably connected to a movable frame (402), the top of the movable frame (402) is fixedly connected to a connecting plate (403), the interior of the mounting frame (1) is rotatably connected to a threaded rod (404) passing through the connecting plate (403), the outer wall of the threaded rod (404) is fixedly connected to a first bevel gear (405), the The interior of the mounting frame (1) is rotatably connected to the outer wall of the first bevel gear (405), the top of the second bevel gear (406) is fixedly connected to a rotating block (407), the bottom of the movable frame (402) is fixedly connected to a mounting seat (408), a displacement seat (409) is provided on one side of the mounting seat (408), the outer wall of the displacement seat (409) is fixedly connected to an insertion rod (410), a docking groove (412) is provided at one end of the connecting roller (3), and a docking block (411) is fixedly connected to the other end of the connecting roller (3), and the position of the movable frame (402) is reinforced by a reinforcement mechanism (6); The adjusting mechanism (5) comprises a slider (501), the slider (501) being fixedly connected to the outer wall of the mounting seat (408), one end of the slider (501) being provided with a fixing groove (502), a side of the outer wall of the displacement seat (409) away from the insertion rod (410) being provided with a sliding groove (503), the slider (501) being slidably connected to the inner wall of the sliding groove (503), a top end of the displacement seat (409) being provided with a groove (504), the inner wall of the groove (504) being rotatably connected to a rotating plate (505), the rotating plate (505) being provided with a rotating plate (505) One end of the rotating plate (505) is fixedly connected to a spur gear (506), a displacement plate (507) is provided at the bottom end of the spur gear (506), the displacement plate (507) is slidably connected to the inside of the displacement seat (409), the outer wall of the displacement plate (507) is fixedly connected to a fixing block (508), the fixing block (508) extends to the inner wall of the slide groove (503), the inside of the rotating plate (505) is symmetrically slidably connected to a clamping block (509) extending from the rotating plate (505), and a spring (510) is connected between the two clamping blocks (509); The reinforcing mechanism (6) comprises a reinforcing groove (601), the reinforcing groove (601) being opened at the bottom end of the movable groove (401), the bottom end of the inner wall of the slide groove (503) being fixedly connected to a vertical plate (602), one end of the sliding block (501) being opened to a vertical groove (603), the inside of the movable frame (402) being slidably connected to a pushing frame (604), the outer wall of the pushing frame (604) being fixedly connected to a first elastic sheet (605), the inside of the movable frame (402) being slidably connected to a reinforcing block (606) extending from the movable frame (402), the top end of the reinforcing block (606) being fixedly connected to a second elastic sheet (607), one end of the pushing frame (604) extending to the inner cavity of the vertical groove (603), the other end of the pushing frame (604) penetrating the reinforcing block (606) and being fixedly connected to a pushing block (608).

2. The road construction maintenance and repair device according to claim 1, characterized in that: The inner wall of the movable groove (401) is fitted with the outer wall of the movable frame (402); the outer wall of the threaded rod (404) is symmetrically provided with external threads; the outer wall of the connecting plate (403) is provided with threaded holes, the threaded holes match the external threads; and the first bevel gear (405) is meshed with the second bevel gear (406).

3. The road construction maintenance and repair device according to claim 1, characterized in that: The outer wall of the insertion rod (410) fits with the inner wall of the connecting roller (3), and the inner wall of the docking groove (412) fits with the outer wall of the docking block (411).

4. The road construction maintenance and repair device according to claim 1, characterized in that: The outer wall of the sliding block (501) is in a T-shape, and the outer wall of the sliding block (501) fits the inner wall of the sliding groove (503).

5. The road construction maintenance and repair device according to claim 1, characterized in that: A tooth groove is provided at the top of the displacement plate (507), and the tooth groove is meshed with the spur gear (506).

6. The road construction maintenance and repair device according to claim 1, characterized in that: The outer wall of the fixing block (508) fits into the inner wall of the fixing groove (502), and the clamping block (509) is L-shaped.

7. The road construction maintenance and repair device according to claim 1, characterized in that: The outer wall of the vertical plate (602) fits the inner wall of the vertical slot (603), and a semicircular surface is provided at one end of the pushing frame (604) located in the inner cavity of the vertical slot (603).

8. The road construction maintenance and repair device according to claim 1, characterized in that: The outer wall of the bottom end of the reinforcing block (606) is in contact with the inner wall of the reinforcing groove (601), the outer wall of the reinforcing block (606) is provided with an inclined surface, the pushing block (608) is in contact with the inclined surface, and the outer wall of the reinforcing block (606) is provided with a through groove for the pushing frame (604) to slide.

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