Walking limiting mechanism of bridge deck paver

Abstract

The utility model discloses a walking limiting mechanism of a bridge deck paver, and relates to the technical field of bridge deck pavers. The device comprises a body, a walking frame is horizontally fixed to one side of the bottom of the body. The walking limiting mechanism comprises a guide rail horizontally fixed to the side edge, away from the body, of the walking frame. The length direction of the guide rail is parallel to the length direction of the walking frame; a sliding block is connected to the guide rail in a sliding manner; a supporting cylinder is arranged above the sliding block; the lower end of the supporting cylinder is connected to the sliding block. The outer wall of the sliding block is radially connected with a grip. The concrete surface trowelling device is reasonable in structural design and convenient to use, the situation that a worker twists the waist to operate a tool to trowelling a concrete surface is avoided, the labor intensity of the worker is relieved, and meanwhile the walking operation of the worker can be effectively limited.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge deck pavers, in particular to a travel limiting mechanism of a bridge deck pavers. Background Art

[0002] Compared with the traditional bridge deck paving construction process, the bridge deck paver can greatly improve the efficiency and flatness of bridge deck paving, and save precious time for the subsequent bridge deck concrete finishing work. Since there are more or less uneven areas on the bridge deck after paving, it is necessary to set a walking frame on the paver that extends in the same direction as the truss. During the leveling process of the paver, the workers observe the concrete surface on the walking frame and smooth out the uneven areas of the concrete surface in time.

[0003] However, when workers bend over or squat on the walking frame to smooth the concrete surface, since the workers use one hand to smooth the concrete surface and do not use the other hand, they may fall off the walking frame, causing injuries to the workers, so it is necessary to limit the workers. A Chinese patent with the authorization announcement number CN219992226U discloses a bridge deck paver, which adds a slide rail and a connector on the same side of the walking frame, so that when the worker is working at a certain point on the walking frame, he can grab the grip with one hand, then tilt his body and start smoothing. When the above device is in use, since the worker needs to grab the grip with one hand, and then twist his waist and use the other hand to operate the tool to smooth the concrete surface, it is easy to cause lumbar muscle strain to the worker and increase the labor intensity of the worker; and when the worker switches hands to operate the tool to smooth the concrete surface, it may be necessary to switch the other hand to grab the grip from behind the worker or change the direction of the worker, which brings some inconvenience to the worker. Therefore, it is urgent to study a walking limit mechanism of a bridge deck paver to solve the above problems. Utility Model Content

[0004] The utility model provides a travel limiting mechanism for a bridge deck paver, and its purpose is to solve the technical problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a travel limiting mechanism for a bridge deck paver, the bridge deck paver comprises a main body; a travel frame is horizontally fixed to one side of the bottom of the main body; the travel limiting mechanism comprises a guide rail horizontally fixed to one side of the travel frame away from the main body; the length direction of the guide rail is parallel to the length direction of the travel frame; a slider is slidably connected to the guide rail; a support tube is arranged above the slider; the lower end of the support tube is connected to the slider; and a handle is radially connected to the outer wall of the slider.

[0007] As a preferred technical solution of the utility model, the guide rail includes a first slat arranged horizontally; one side of the first slat is fixed on the walking frame; a second slat is vertically fixed to the other side of the first slat; the length direction of the second slat is arranged parallel to the length direction of the first slat; both ends of the second slat are horizontally interspersed with limit bolts perpendicular to the first slat.

[0008] As a preferred technical solution of the utility model, the slider is in a "]"-shaped structure; the vertical section of the slider is arranged on the side of the second slat away from the first slat; support plates are vertically fixed to the relative inner sides of the two horizontal sections of the slider; the two support plates are rotatably connected to a pair of rollers side by side on one side close to the second slat; the circumferential roller surfaces of the two pairs of rollers respectively contact the upper and lower surfaces of the first slat.

[0009] As a preferred technical solution of the utility model, at least one horizontal section of the slider is horizontally fixed with a mounting plate on its relative side; the two mounting plates are obliquely fixed with scrapers on one side away from the slider; the two scrapers are distributed in an "eight" shape; the lower edges of the two scrapers are in contact with the upper surface and / or lower surface of the first strip.

[0010] As a preferred technical solution of the utility model, a rotating shaft parallel to the first slat is fixedly inserted in the radial direction at the lower end of the support tube; both ends of the rotating shaft are rotatably connected to bearing blocks; both bearing blocks are fixed on the upper horizontal section of the slider; a stopper is fixed on the side of the vertical section of the slider away from the first slat; the upper part of the stopper has an inclined positioning surface corresponding to the support tube; the inclined positioning surface is arranged obliquely above the slider; the inclined positioning surface can be in conflict with the outer wall of the support tube.

[0011] As a preferred technical solution of the utility model, torsion springs are sleeved at both ends of the rotating shaft; one end of the two torsion springs is respectively fixed on the two bearing blocks; the other ends of the two torsion springs are respectively fixed on the outer wall of the rotating shaft.

[0012] As a preferred technical solution of the utility model, the outer peripheral sliding sleeve of the support tube is provided with a sliding sleeve; one end of the handle is fixed on the outer wall of the sliding sleeve; the circumferential side wall of the sliding sleeve is radially connected with a side sleeve; the inner thread of the side sleeve is equipped with a stud; one end of the stud can be in conflict with the outer wall of the support tube.

[0013] As a preferred technical solution of the utility model, an orientation strip is fixed axially on the outer wall of the support tube; a groove is axially arranged on the inner wall of the sliding sleeve; the orientation strip slides in the groove; and the length direction of the handle is arranged parallel to the length direction of the first strip.

[0014] As a preferred technical solution of the utility model, the internal thread of the upper port of the support tube is matched with a screw rod; and a handle is fixed to the upper end of the screw rod.

[0015] The utility model has the following beneficial effects:

[0016] The utility model allows a worker to hold the handle with one hand and operate the tool to smooth the concrete surface with the other hand when the worker is working at a certain position of the walking frame, thereby effectively avoiding the need to twist the waist to operate the tool to smooth the concrete surface in the prior art, reducing the probability of lumbar muscle strain for the worker and also reducing the labor intensity of the worker. When the worker needs to change the working position, the support tube is operated to make the slider slide on the guide rail, thereby realizing the position adjustment of the handle. The utility model is convenient and quick to use and has high market application value.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 The utility model is a schematic diagram of the structure of a travel limiting mechanism of a bridge deck paver.

[0020] Figure 2 for Figure 1 The main view of the structure.

[0021] Figure 3 It is a schematic structural diagram of the connection between the guide rail, the sliding block and the supporting tube of the utility model.

[0022] Figure 4 It is a structural schematic diagram of the connection between the slider and the scraper of the utility model.

[0023] Figure 5 It is a structural schematic diagram of the connection between the slider and the stopper of the utility model.

[0024] Figure 6 It is a schematic diagram of the structure of the connection between the support tube and the handle of the utility model.

[0025] Figure 7 It is a schematic diagram of the structure of the connection between the handle and the sliding sleeve of the utility model.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1-main body, 2-walking frame, 3-guide rail, 4-slider, 5-support cylinder, 6-handle, 7-mounting plate, 8-stopper, 9-sleeve, 10-screw, 301-first slat, 302-second slat, 303-limiting bolt, 401-support plate, 402-roller, 501-rotating shaft, 502-bearing block, 503-torsion spring, 504-directional strip, 701-scraper, 801-inclined positioning surface, 901-groove, 902-side sleeve, 903-stud, 1001-handle. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1:

[0030] See also Figure 1-Figure 3 As shown, the utility model is a travel limiting mechanism of a bridge deck paver, which is a conventional structure in this field, and includes a main body 1; a conventional walking frame 2 in this field is connected to one side of the bottom of the main body 1 by horizontal bolts; the walking frame 2 is a grid structure; the travel limiting mechanism includes a guide rail 3 connected to the walking frame 2 on a side away from the main body 1 by horizontal bolts; the length direction of the guide rail 3 is arranged parallel to the length direction of the walking frame 2; a slider 4 is slidably connected to the guide rail 3; a support tube 5 is arranged above the slider 4; the lower end of the support tube 5 is connected to the slider 4; the outer wall of the slider 4 is radially connected to a conventional handle 6 in this field. During use, when a worker is working at a certain position of the walking frame 2, the worker can hold the handle 6 with one hand and operate the tool with the other hand to smooth the concrete surface, which effectively avoids the need to twist the waist to operate the tool to smooth the concrete surface in the prior art, can reduce the probability of lumbar muscle strain of the worker, and also reduces the labor intensity of the worker. When the worker needs to change the working position, the slider 4 can be made to slide on the guide rail 3 by operating the support tube 5, thereby realizing the position adjustment of the handle 6, which is convenient and quick to use.

[0031] Embodiment 2:

[0032] Based on Example 1, Figure 3-Figure 4As shown, the guide rail 3 includes a first slat 301 arranged horizontally; one side of the first slat 301 is bolted to the walking frame 2; the other side of the first slat 301 is vertically welded with a second slat 302; a "┤"-shaped structure is formed between the second slat 302 and the first slat 301; the length direction of the second slat 302 is parallel to the length direction of the first slat 301; both ends of the second slat 302 are horizontally interspersed with limit bolts 302 perpendicular to the first slat 301 03; the limiting bolt 303 is threadedly connected to the second slat 302; the slider 4 is in a "]"-shaped structure; the vertical section of the slider 4 is arranged on the side of the second slat 302 away from the first slat 301; the opposite inner sides of the two horizontal sections of the slider 4 are vertically welded with support plates 401; the two support plates 401 are connected to a pair of rollers 402 that are rotatably connected side by side on the side close to the second slat 302; the circumferential roller surfaces of the two pairs of rollers 402 respectively conflict with the upper and lower surfaces of the first slat 301. When in use, by designing the circumferential roller surfaces of the two pairs of rollers 402 to conflict with the upper and lower surfaces of the first slat 301 respectively, the two pairs of rollers 402 are prompted to roll on the first slat 301 when the slider 4 is moved, which can effectively reduce the resistance of the moving slider 4. At the same time, by arranging the limiting bolts 303 at both ends of the second slat 302, the rollers 402 can be effectively limited to prevent the slider 4 from detaching from the guide rail 3.

[0033] Among them Figure 3-Figure 4 As shown, the upper horizontal section of the slider 4 is horizontally bolted with mounting plates 7 on the opposite sides; the two mounting plates 7 are obliquely welded with scrapers 701 on the sides away from the slider 4; the two scrapers 701 are arranged in an "eight" shape; the lower edges of the two scrapers 701 are in conflict with the upper surface of the first strip 301. When in use, the scrapers 701 scrape off the dust or concrete slag on the upper surface of the first strip 301 during the movement of the slider 4 on the guide rail 3, thereby ensuring the rolling stability of the roller 402 on the first strip 301; at the same time, the limit bolts 303 can be removed from the second strip 302, so that the dust or concrete slag scraped by the scrapers 701 can be removed from the first strip 301, effectively ensuring the use effect of the guide rail 3; in addition, the scrapers 701 can be connected to the two horizontal sections of the slider 4, so that the upper and lower surfaces of the first strip 301 can be cleaned.

[0034] Embodiment three:

[0035] Based on Example 2, Figure 3-Figure 6As shown, a rotating shaft 501 parallel to the first slat 301 is fixedly inserted in the radial direction at the lower end of the support cylinder 5; both ends of the rotating shaft 501 are rotatably connected with bearing blocks 502; the two bearing blocks 502 are welded to the upper horizontal section of the slider 4; the side of the vertical section of the slider 4 away from the first slat 301 is bolted with a stopper 8; the upper part of the stopper 8 has an inclined positioning surface 801 corresponding to the support cylinder 5; the inclined positioning surface 801 is arranged obliquely above the slider 4; the inclined positioning surface 801 can conflict with the outer wall of the support cylinder 5; the acute angle between the inclined positioning surface 801 and the first slat 301 is 60°; torsion springs 503 are sleeved at both ends of the rotating shaft 501; one end of the two torsion springs 503 is respectively fixed on the two bearing blocks 502; the other ends of the two torsion springs 503 are respectively fixed on the outer wall of the rotating shaft 501. When in use, the worker holds the handle 6 and pushes it toward the side away from the main body 1, causing the support tube 5 to rotate around the rotating shaft 501, so that the inclined positioning surface 801 is in conflict with the outer wall of the support tube 5, so that the support tube 5 is in an inclined state, which can facilitate the worker to tilt his body to smooth the concrete surface, and can also play an effective supporting and limiting role for the worker; when the worker releases the handle 6 or does not apply force to the handle 6, the rotating shaft 501 rotates back under the action of the torsion spring 503, causing the support tube 5 to return to a vertical state.

[0036] Among them Figure 6-Figure 7 As shown, the peripheral sliding sleeve of the support tube 5 is provided with a sliding sleeve 9; one end of the handle 6 is fixed on the outer wall of the sliding sleeve 9; the circumferential side wall of the sliding sleeve 9 is radially welded with a side sleeve 902; the internal thread of the side sleeve 902 is matched with a stud 903; one end of the stud 903 can be in conflict with the outer wall of the support tube 5; the outer wall of the support tube 5 is axially welded with an orientation strip 504; the inner wall of the sliding sleeve 9 is axially provided with a groove 901; the orientation strip 504 is slidably matched in the groove 901; the length direction of the handle 6 is arranged parallel to the length direction of the first strip 301; the internal thread of the upper port of the support tube 5 is matched with a screw 10; the upper end of the screw 10 is fixed with a conventional handle 1001 in this field. During use, workers adjust the position of the sleeve 9 on the support tube 5 according to their own needs, and use one end of the stud 903 to tightly contact the outer wall of the support tube 5 to achieve the positioning of the sleeve 9, which can facilitate different workers to operate the handle 6; and by designing the directional strip 504 to slide and fit in the groove 901, the sleeve 9 can be prevented from rotating on the support tube 5, thereby ensuring that the length direction of the handle 6 is always in a parallel setting state with the length direction of the first slat 301, thereby facilitating the workers to use the handle 6; at the same time, when the workers need to change the working position, they operate the handle 1001 and pull the slider 4 through the screw 10 and the support tube 5, and by designing the threaded fit between the support tube 5 and the screw 10, it is convenient for the workers to adjust the position of the handle 1001, thereby facilitating the workers to operate the handle 1001, effectively ensuring the workers' work efficiency.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A travel limiting mechanism for a bridge deck paver, the bridge deck paver comprising a body (1); a travel frame (2) is horizontally fixed to one side of the bottom of the body (1); the characteristics are: The travel limiting mechanism comprises a guide rail (3) horizontally fixed on a side of a travel frame (2) away from the main body (1); the length direction of the guide rail (3) is arranged parallel to the length direction of the travel frame (2); a slider (4) is slidably connected to the guide rail (3); a support tube (5) is arranged above the slider (4); the lower end of the support tube (5) is connected to the slider (4); and a handle (6) is radially connected to the outer wall of the slider (4).

2. The travel limiting mechanism of a bridge deck paver according to claim 1, characterized in that: The guide rail (3) comprises a first slat (301) arranged horizontally; one side of the first slat (301) is fixed on the walking frame (2); a second slat (302) is vertically fixed to the other side of the first slat (301); the length direction of the second slat (302) is arranged parallel to the length direction of the first slat (301); and both ends of the second slat (302) are horizontally interspersed with limit bolts (303) perpendicular to the first slat (301).

3. The travel limiting mechanism of a bridge deck paver according to claim 2, characterized in that: The slider (4) has a "]"-shaped structure; the vertical section of the slider (4) is arranged on the side of the second slat (302) away from the first slat (301); supporting plates (401) are vertically fixed to the opposite inner sides of the two horizontal sections of the slider (4); the side surfaces of the two supporting plates (401) close to the second slat (302) are rotatably connected side by side with a pair of rollers (402); the circumferential roller surfaces of the two pairs of rollers (402) are respectively in contact with the upper and lower surfaces of the first slat (301).

4. The travel limiting mechanism of a bridge deck paver according to claim 3, characterized in that: A mounting plate (7) is horizontally fixed to the opposite side edges of at least one horizontal section of the slider (4); a scraper (701) is obliquely fixed to the side edges of the two mounting plates (7) away from the slider (4); the two scrapers (701) are arranged in an "eight" shape; and the lower edges of the two scrapers (701) are in contact with the upper surface or / and the lower surface of the first strip (301).

5. A travel limiting mechanism for a bridge deck paver according to claim 3 or 4, characterized in that: A rotating shaft (501) parallel to the first slat (301) is fixedly inserted in the radial direction at the lower end of the support tube (5); both ends of the rotating shaft (501) are rotatably connected to supporting blocks (502); both supporting blocks (502) are fixed on the upper horizontal section of the slider (4); a stopper (8) is fixed on the side of the vertical section of the slider (4) away from the first slat (301); the upper part of the stopper (8) has an inclined positioning surface (801) corresponding to the support tube (5); the inclined positioning surface (801) is arranged obliquely above the slider (4); the inclined positioning surface (801) can be in contact with the outer wall of the support tube (5).

6. The travel limiting mechanism of a bridge deck paver according to claim 5, characterized in that: Torsion springs (503) are sleeved at both ends of the rotating shaft (501); one end of the two torsion springs (503) is respectively fixed on the two bearing blocks (502); and the other ends of the two torsion springs (503) are respectively fixed on the outer wall of the rotating shaft (501).

7. The travel limiting mechanism of a bridge deck paver according to claim 5, characterized in that: The outer peripheral sliding sleeve of the support tube (5) is provided with a sliding sleeve (9); one end of the handle (6) is fixed on the outer wall of the sliding sleeve (9); the circumferential side wall of the sliding sleeve (9) is radially connected with a side sleeve (902); the side sleeve (902) is internally threaded with a stud (903); one end of the stud (903) can be in contact with the outer wall of the support tube (5).

8. The travel limiting mechanism of a bridge deck paver according to claim 7, characterized in that: An orientation strip (504) is fixed axially on the outer wall of the support tube (5); a groove (901) is arranged axially on the inner wall of the sliding sleeve (9); the orientation strip (504) is slidably fitted in the groove (901); and the length direction of the handle (6) is arranged parallel to the length direction of the first strip (301).

9. The travel limiting mechanism of a bridge deck paver according to claim 5, characterized in that: The internal thread of the upper port of the support tube (5) is matched with a screw rod (10); and a handle (1001) is fixed to the upper end of the screw rod (10).

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