Simple device of subway foundation pit steel support

Abstract

The utility model discloses a simple device for a subway foundation pit steel support. The simple device comprises a supporting seat, an adjusting plate is slidably connected to the interior of the supporting seat, a lead screw is rotatably connected to the interior of the supporting seat, the adjusting plate is in threaded connection with the lead screw, fixing rods are symmetrically and fixedly connected to the top of the adjusting plate, and first supporting steel plates are fixedly connected to the tops of the fixing rods. The utility model relates to the technical field of metro foundation pit steel supports, the simple device of the metro foundation pit steel support is provided with an adjusting plate, a fixing rod, a first supporting steel plate, a fixing base, a rotating shaft, a transmission gear, a rack, an adjusting base and a second supporting steel plate, the function of auxiliary supporting of the top and the side wall of a metro foundation pit is achieved, and the supporting effect is better; and by arranging a hand wheel, a transmission shaft, a first bevel gear, a second bevel gear and a lead screw, the function of adjusting the position of the adjusting plate during use is achieved, the height during supporting is conveniently adjusted, and operation is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to subway foundation pit steel support technical field, concretely is simple and easy device of subway foundation pit steel support. BACKGROUND

[0002] The subway is a kind of urban rail transit line system, refers to the construction in city, fast, large capacity, electric traction track traffic, train runs on fully enclosed line, the line in central urban area is basically set in underground tunnel, and steel support device is required to support the top of foundation pit in the process of subway engineering construction.

[0003] In the Chinese utility model patent application No. CN201820417200.0, a kind of removable subway steel support simple device is disclosed, simple structure, can be dismantled, the inclination angle of support device can be adjusted, and the effective length of support device can be adjusted, the screw rod can also be dismantled, simple operation, convenient to use.

[0004] The above patent can support the top of foundation pit, but the above patent has the following disadvantages when used: the removable subway steel support simple device of the above can only assist support the top of foundation pit when used, the effect of support is relatively single, and when the height of use is adjusted, the operation steps are relatively cumbersome, inconvenient to operate, not convenient to use.Therefore, we propose simple device of subway foundation pit steel support. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides simple device of subway foundation pit steel support, solves the problem that only auxiliary support can be carried out on the top of foundation pit when used, the effect of support is relatively single, and when the height of use is adjusted, the operation steps are relatively cumbersome, inconvenient to operate.

[0006] To achieve the above purpose, the utility model is realized by the following technical solutions:

[0007] The utility model provides a simple device of subway foundation pit steel support, including support seat, the inside sliding joint of support seat has the adjusting board, the inside rotation connection of support seat has the lead screw, the adjusting board is screwed with lead screw, the top fixed connection of adjusting board is symmetrical with fixed link, the top fixed connection of fixed link has first support steel sheet, the bottom fixed connection of first support steel sheet has fixed seat, the inside sliding joint of fixed seat has adjusting seat, one side fixed connection of adjusting seat has second support steel sheet, the inside rotation connection of fixed seat has the pivot, the outside equidistance fixed connection of pivot has transmission gear, the bottom equidistance fixed connection of adjusting seat has the rack used in cooperation with transmission gear, when using, the movement of adjusting board is driven through the rotation of lead screw, and adjusting board drives first support steel sheet to produce the movement through fixed link, thereby the height of support is adjusted, makes first support steel sheet contact to the top of foundation pit, thereby the top of foundation pit is assisted and supported, the rotation of transmission gear is driven through the rotation of transmission gear, and the rack is driven to produce the movement through the rotation of transmission gear, and the movement of second support steel sheet is driven through adjusting seat, so that the sidewall of foundation pit is contacted to second support steel sheet, thereby the sidewall of foundation pit is assisted and supported, and the effect of support is better.

[0008] Preferably, the inside rotation connection of support seat has transmission shaft, one end of transmission shaft is fixedly connected with first bevel gear, the outside fixed connection of lead screw has second bevel gear used in cooperation with first bevel gear, the end away from first bevel gear of transmission shaft is fixedly connected with hand wheel, the rotation of transmission shaft is driven through hand wheel, and the rotation of second bevel gear is driven through first bevel gear, so as to drive the rotation of lead screw.

[0009] Preferably, the outside fixed connection of transmission shaft has gear ring, the inside sliding joint of support seat has sliding block, one side fixed connection of sliding block has limit tooth used in cooperation with gear ring, the abutment between limit tooth and gear ring is driven through the movement of sliding block, so as to prevent the rotation of transmission shaft.

[0010] Preferably, the inside fixed connection of support seat has fixed block, the inside screw connection of fixed block has threaded rod, the rotation connection of threaded rod and sliding block, the movement of sliding block is driven through the rotation of threaded rod.

[0011] Preferably, the inside fixed connection of fixed seat is symmetrical with sliding rod, the outside sliding joint of sliding rod has connecting plate, the fixed connection of connecting plate and adjusting seat, the movement of adjusting seat can be limited through the setting of sliding rod and connecting plate, and deviation is prevented.

[0012] Preferably, the inside rotation connection of fixed seat has worm, the outside fixed connection of pivot has worm wheel used in cooperation with worm, the rotation of worm wheel is driven through the rotation of worm, and the rotation of pivot is driven through worm wheel.

[0013] The utility model provides a simple device of subway foundation pit steel support. Compared with prior art has the following beneficial effects:

[0014] 1、 this simple device of subway foundation pit steel support, through setting up the adjusting plate, fixed link, first support steel sheet, fixed base, pivot, transmission gear, rack, adjusting seat and second support steel sheet realize the function of the top and lateral wall of subway foundation pit is assisted and supported, and the effect of support is better.

[0015] 2、 this simple device of subway foundation pit steel support, through setting up hand wheel, transmission shaft, first bevel gear, second bevel gear and screw rod realize the function that the position of adjusting plate is adjusted when using, convenient for the height of support is adjusted, and the operation is convenient. ACCURACY OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of the utility model;

[0017] Figure 2 It is the internal structure schematic diagram of the utility model support seat;

[0018] Figure 3 It is the structure schematic diagram of the utility model screw rod;

[0019] Figure 4 It is the internal structure schematic diagram of the utility model fixed base;

[0020] Figure 5 It is the structure schematic diagram of the utility model adjusting seat.

[0021] In the drawing: 1, support seat;2, fixed base;3, first support steel sheet;4, second support steel sheet;5, fixed link;6, screw rod;7, adjusting plate;8, hand wheel;9, gear ring;10, first bevel gear;11, second bevel gear;12, sliding block;13, fixed block;14, threaded rod;15, transmission shaft;16, pivot;17, rack;18, connecting plate;19, sliding rod;20, adjusting seat;21, transmission gear;22, worm wheel;23, worm. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0023] Please refer to Figures 1 to 5 The utility model provides a kind of technical scheme:

[0024] The utility model provides a simple device of subway foundation pit steel support, including support seat 1, the inside sliding joint of support seat 1 has the adjusting plate 7, the inside rotation connection of support seat 1 has the lead screw 6, the adjusting plate 7 is connected with the lead screw 6, the top symmetry fixed connection of adjusting plate 7 has the fixed link 5, the top fixed connection of fixed link 5 has the first support steel sheet 3, the bottom fixed connection of first support steel sheet 3 has the fixed seat 2, the inside sliding joint of fixed seat 2 has the adjusting seat 20, the one side fixed connection of adjusting seat 20 has the second support steel sheet 4, the inside rotation connection of fixed seat 2 has the pivot 16, the outside equidistance fixed connection of pivot 16 has the transmission gear 21, the bottom equidistance fixed connection of adjusting seat 20 has the rack 17 for with transmission gear 21 cooperation uses, when using, the movement of adjusting plate 7 is driven through the rotation of lead screw 6, adjusting plate 7 drives the first support steel sheet 3 to move through fixed link 5, thereby the height of support is adjusted, makes the first support steel sheet 3 contact to the top of foundation pit, thereby the top of foundation pit is assisted and supported, the rotation of transmission gear 21 is driven through the rotation of pivot 16, the movement of rack 17 is driven through the rotation of transmission gear 21, rack 17 drives the second support steel sheet 4 to move through adjusting seat 20, makes the second support steel sheet 4 contact to the side wall of foundation pit, thereby the side wall of foundation pit is assisted and supported, and the effect of support is better.

[0025] Further, the inside rotation connection of support seat 1 has transmission shaft 15, one end fixed connection of transmission shaft 15 has first bevel gear 10, the outside fixed connection of lead screw 6 has second bevel gear 11 for with first bevel gear 10 cooperation uses, one end fixed connection of transmission shaft 15 away from first bevel gear 10 has hand wheel 8, the rotation of transmission shaft 15 is driven through hand wheel 8, transmission shaft 15 drives second bevel gear 11 to rotate through first bevel gear 10, thereby drive lead screw 6 to rotate.

[0026] Further, the outside fixed connection of transmission shaft 15 has gear ring 9, the inside sliding joint of support seat 1 has sliding block 12, one side fixed connection of sliding block 12 has the limit tooth for with gear ring 9 cooperation uses, the fit between limit tooth and gear ring 9 is driven through the movement of sliding block 12, thereby prevent transmission shaft 15 from rotating.

[0027] Further, the fixed block 13 is fixedly connected to the inner wall of the support seat 1, the threaded rod 14 is threadedly connected to the inner part of the fixed block 13, and the threaded rod 14 is rotationally connected to the sliding block 12. The rotation of the threaded rod 14 drives the sliding block 12 to move.

[0028] Further, the sliding rods 19 are symmetrically fixedly connected to the inner part of the fixed seat 2, the connecting plates 18 are slidingly connected to the outer side of the sliding rods 19, and the connecting plates 18 are fixedly connected to the adjusting seat 20. The movement of the adjusting seat 20 can be limited by the sliding rods 19 and the connecting plates 18, so as to prevent deviation.

[0029] Further, the inside of the fixed seat 2 is rotatably connected with a worm 23, the outside of the rotating shaft 16 is fixedly connected with a worm gear 22 matched with the worm 23, the rotating of the worm 23 drives the worm gear 22 to rotate, and the worm gear 22 drives the rotating shaft 16 to rotate.

[0030] When the subway foundation pit needs to be assisted and supported, the hand wheel 8 is rotated, the hand wheel 8 drives the first bevel gear 10 to rotate through the transmission shaft 15, the first bevel gear 10 drives the lead screw 6 to rotate through the second bevel gear 11, the rotating of the lead screw 6 drives the adjusting plate 7 to move, the adjusting plate 7 drives the first supporting steel plate 3 to move through the fixed rod 5, so that the height of the support is adjusted, the first supporting steel plate 3 contacts the top of the foundation pit, thereby assisting and supporting the top of the foundation pit, the threaded rod 14 is rotated, the rotating of the threaded rod 14 drives the sliding block 12 to move, so that the limiting teeth on the outside of the sliding block 12 are in close contact with the gear ring 9, thereby preventing the transmission shaft 15 from being reversed, and the stability effect during supporting is enhanced, the worm 23 is rotated, the worm 23 drives the rotating shaft 16 to rotate through the worm gear 22, the rotating shaft 16 drives the transmission gear 21 to rotate, the rotating of the transmission gear 21 drives the rack 17 to move, the rack 17 drives the second supporting steel plate 4 to move through the adjusting seat 20, so that the second supporting steel plate 4 contacts the side wall of the foundation pit, thereby assisting and supporting the side wall of the foundation pit, and the supporting effect is better.

[0031] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art.

[0032] It should be noted that, in this text, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations. By the sentence "including a limited element", it does not exclude the existence of other same elements in the process, method, article or equipment including the element.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A simple device for steel support of subway foundation pit, comprising a support base (1), characterized in that: An adjusting plate (7) is slidably connected inside the support base (1), and a lead screw (6) is rotatably connected inside the support base (1). The adjusting plate (7) is threadedly connected to the lead screw (6). A fixing rod (5) is symmetrically fixedly connected to the top of the adjusting plate (7). A first supporting steel plate (3) is fixedly connected to the top of the fixing rod (5). A fixing seat (2) is fixedly connected to the bottom of the first supporting steel plate (3). An adjusting seat (20) is slidably connected inside the fixing seat (2). A second supporting steel plate (4) is fixedly connected to one side of the adjusting seat (20). A rotating shaft (16) is rotatably connected inside the fixing seat (2). A transmission gear (21) is fixedly connected at equal intervals to the outer side of the rotating shaft (16). A rack (17) that cooperates with the transmission gear (21) is fixedly connected at equal intervals to the bottom of the adjusting seat (20).

2. The simplified device for steel support of subway foundation pit according to claim 1, characterized in that: The support base (1) is rotatably connected to a drive shaft (15). One end of the drive shaft (15) is fixedly connected to a first bevel gear (10). The outer side of the lead screw (6) is fixedly connected to a second bevel gear (11) that works with the first bevel gear (10). A handwheel (8) is fixedly connected to the end of the drive shaft (15) away from the first bevel gear (10).

3. The simplified device for steel support of subway foundation pit according to claim 2, characterized in that: A gear ring (9) is fixedly connected to the outside of the drive shaft (15), and a slider (12) is slidably connected inside the support base (1). A limiting tooth that cooperates with the gear ring (9) is fixedly connected to one side of the slider (12).

4. The simplified device for steel support of subway foundation pit according to claim 3, characterized in that: The inner wall of the support base (1) is fixedly connected to a fixing block (13), and the fixing block (13) is internally threaded with a threaded rod (14), which is rotatably connected to the slider (12).

5. The simplified device for steel support of subway foundation pit according to claim 1, characterized in that: The fixed base (2) is symmetrically fixedly connected to a slide rod (19) inside, and a connecting plate (18) is slidably connected to the outside of the slide rod (19). The connecting plate (18) is fixedly connected to the adjusting base (20).

6. The simplified device for steel support of subway foundation pit according to claim 1, characterized in that: The fixed base (2) is rotatably connected to a worm gear (23), and the outside of the rotating shaft (16) is fixedly connected to a worm wheel (22) that works with the worm gear (23).

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