Perforating device for concrete bottom plate

Abstract

The utility model discloses a concrete bottom plate trepanning device which comprises a bottom plate, limiting rods which are symmetrically arranged are fixedly connected to the top end of the bottom plate, first springs are arranged on the limiting rods in a sleeved mode, the bottom ends of the first springs are fixedly connected with the bottom plate, and limiting blocks are fixedly connected to the top ends of the first springs. Limiting rods are arranged at the top end of the bottom plate, limiting blocks are arranged at the top end of the bottom plate, the limiting blocks are connected with the limiting rods in a sliding mode, the opposite sides of the two limiting blocks are both fixedly connected with transmission frames, the opposite sides of the two transmission frames are jointly and fixedly provided with a tapping machine, and a positioning hole is formed in the center of the bottom plate. And the first anti-skid grooves formed in the bottom plate and the second anti-skid grooves formed in the expansion plate are distributed in a longitudinal and transverse state, friction force in different directions can be effectively increased, shaking is relieved, the tapping machine is convenient to stabilize, the structure is simple, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete construction technical field, concretely is the opening device of concrete bottom plate. BACKGROUND

[0002] The opening device of concrete bottom plate is indispensable in building construction, it is mainly used in the hard ground such as concrete ground, cement ground on the hard ground and carries out the opening operation, to satisfy the construction demand such as electric wire laying, drainage pipeline installation, heating pipeline arrangement.

[0003] The existing opening device is opened when the concrete bottom plate, because the drill bit and the concrete friction is greater, can produce strong shaking, this can lead to the opening inclination, the precision is difficult to control the situation appears, and the inclined drill bit also can appear the fracture situation appears. UTILITY MODEL CONTENT

[0004] The utility model discloses a concrete bottom plate's opening device to solve the problem in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: the opening device of concrete bottom plate, including the bottom plate, the bottom plate top fixedly connected with the limit rod that sets up symmetrically, the first spring is all set on the limit rod, the first spring bottom all is fixedly connected with the bottom plate, the first spring top all is fixedly connected with the limit block, the limit block is connected with the limit rod slidingly, two The opposite side of limit block is all fixedly connected with transmission frame, two The opposite side of transmission frame is commonly fixedly installed with the opening machine, the bottom plate center position is set with the positioning hole, the bottom plate both sides bottom all are set with transmission groove, The bottom plate is close to transmission groove both sides and is set with the storage groove, the transmission groove one side top inner wall all is fixedly connected with the second spring, the second spring bottom all is fixedly connected with the rack, the rack is connected with transmission groove slidingly, Transmission groove is rotatably connected with the first circular shaft, the first circular shaft middle position all is fixedly connected with the gear, the first circular shaft both ends all are fixedly connected with the first bevel gear, The bottom plate corresponds storage groove and is rotatably connected with the second circular shaft, the second circular shaft top all is fixedly connected with the second bevel gear, The second circular shaft bottom all is fixedly connected with the expansion plate.

[0006] Preferably, the bottom plate is designed as a rectangular structure, and first anti-skid grooves are formed on both sides of the bottom end of the bottom plate.

[0007] Preferably, one end of the expansion plate is designed as an arc structure, and second anti-skid grooves are formed on the bottom end of the expansion plate.

[0008] Preferably, the rack and the gear are correspondingly arranged, and the rack and the gear are engagedly connected.

[0009] Preferably, the first bevel gear and the second bevel gear are arranged correspondingly, and the first bevel gear and the second bevel gear are connected in engagement.

[0010] Compared with the prior art, the utility model has the advantages that only need to place the bottom plate on the top end of the concrete bottom plate, can expand the expansion plate, and the first anti-skid groove of the bottom plate and the second anti-skid groove of the expansion plate are distributed in longitudinal and transverse state, can effectively increase friction in different directions, reduce shaking, and facilitate the stability of the hole opener, and the structure is simple and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a front view structural schematic diagram of the utility model;

[0012] Figure 2 It is a side view structural schematic diagram of the utility model;

[0013] Figure 3 It is a structural state schematic diagram of the utility model;

[0014] Figure 4 It is a local structure front view sectional view of the utility model;

[0015] Figure 5 It is a local structure side view sectional view of the utility model.

[0016] In the drawing: 1, bottom plate; 2, limiting rod; 3, first spring; 4, limiting block; 5, transmission frame; 6, hole opener; 7, positioning hole; 8, transmission groove; 9, storage groove; 10, second spring; 11, rack; 12, first circular shaft; 13, gear; 14, first bevel gear; 15, second circular shaft; 16, second bevel gear; 17, expansion plate; 18, first anti-skid groove; 19, second anti-skid groove. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in 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 work fall within the protection scope of the utility model.

[0018] Please refer to Figures 1-5The utility model provides a technical scheme: the trepanning device of concrete bottom plate, including bottom plate 1, the top fixedly connected with the limit rod 2 of symmetrical setting of bottom plate 1, the first spring 3 is all set up on limit rod 2, and the bottom of first spring 3 is all with bottom plate 1 fixed connection, and the top of first spring 3 is all fixedly connected with the limit block 4, and limit block 4 is connected with limit rod 2 slidingly, and the opposite side of two limit blocks 4 is all fixedly connected with transmission frame 5, and the opposite side of two transmission frames 5 is commonly fixedly installed with trepanning machine 6, and the center position of bottom plate 1 is set with the positioning hole 7, and the bottom of bottom plate 1 both sides is set with transmission groove 8, and the both sides close to transmission groove 8 of bottom plate 1 is set with the storage groove 9, and the inner wall of transmission groove 8 one side top is all fixedly connected with second spring 10, and the bottom of second spring 10 is all fixedly connected with rack 11, and rack 11 is connected with transmission groove 8 slidingly, and transmission groove 8 is rotatably connected with first circular shaft 12, and the middle position of first circular shaft 12 is all fixedly connected with gear 13, and the both ends of first circular shaft 12 are all fixedly connected with first bevel gear 14, and the both sides of bottom plate 1 correspond storage groove 9 are rotatably connected with second circular shaft 15, and the top of second circular shaft 15 is all fixedly connected with second bevel gear 16, and the bottom of second circular shaft 15 is all fixedly connected with expansion plate 17.

[0019] The bottom plate 1 is designed in a rectangular structure, and first anti-skid grooves 18 are formed at both sides of the bottom end of the bottom plate 1, so that the friction between the bottom plate 1 and the concrete bottom plate can be increased through the first anti-skid grooves 18; one end of the expansion plate 17 is designed in an arc structure, and second anti-skid grooves 19 are formed at the bottom end of the expansion plate 17, so that the expansion plate 17 can rotate in the storage groove 9, and when the expansion plate 17 is expanded, the first anti-skid grooves 18 formed in the bottom plate 1 and the second anti-skid grooves 19 formed in the expansion plate 17 are distributed in a vertical and horizontal state, so that the friction in different directions can be effectively increased, the bottom plate 1 is stable, the rack 11 is arranged correspondingly to the gear 13, the rack 11 is connected with the gear 13 in meshing mode, the first bevel gear 14 is arranged correspondingly to the second bevel gear 16, and the first bevel gear 14 is connected with the second bevel gear 16 in meshing mode, so that the transmission is facilitated.

[0020] Specific, use the utility model for the first time, the bottom plate 1 is placed in concrete bottom plate top, the rack 11 is extruded to the upward movement of concrete bottom plate, the rack 11 of movement is extruded to the second spring 10, and the rack 11 is extruded to the gear 13 simultaneously, the gear 13 is driven to rotate by extrusion, the first circular shaft 12 is driven to rotate by the first bevel gear 14 of two, the second bevel gear 16 is driven to rotate by the first bevel gear 14, the second circular shaft 15 is driven to rotate by the second bevel gear 16, the expansion plate 17 is driven to rotate by the second circular shaft 15, the expansion plate 17 is in the state of expansion at this time, start the trepanning machine 6, and extrude the trepanning machine 6 downwards, the trepanning machine 6 is moved downwards along the limiting rod 2 by the transmission frame 5 and the limiting block 4, the limiting block 4 is extruded to the first spring 3 by downward movement, the first spring 3 is extruded to the bottom plate 1 by pressure, the bottom plate 1 is extruded to the expansion plate 17 by pressure, the bottom plate 1 and the expansion plate 17 are closely attached to the concrete bottom plate at this time, when the drill bit of the trepanning machine 6 contacts with the concrete bottom plate, the first anti-skid groove 18 of the bottom plate 1 and the second anti-skid groove 19 of the expansion plate 17 are distributed in the vertical and horizontal state, which can effectively increase the friction force in different directions, facilitating the stability of the trepanning machine 6.

[0021] Although the embodiments of the utility model have been shown and described, it is 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 hole-opening device for a concrete base plate, characterized in that: The invention comprises a bottom plate (1), wherein the top of the bottom plate (1) is fixedly connected to a symmetrically arranged limit rod (2), the limit rod (2) is sleeved with a first spring (3), the bottom end of the first spring (3) is fixedly connected to the bottom plate (1), the top end of the first spring (3) is fixedly connected to a limit block (4), the limit block (4) is slidably connected to the limit rod (2), the opposite sides of the two limit blocks (4) are fixedly connected to a transmission frame (5), the opposite sides of the two transmission frames (5) are commonly fixedly installed with a hole opening machine (6), a positioning hole (7) is opened at the center of the bottom plate (1), the bottom ends of both sides of the bottom plate (1) are opened with a transmission groove (8), and the bottom plate (1) is opened on both sides near the transmission groove (8) The receiving groove (9) is fixedly connected to the inner wall of the top end of one side of the transmission groove (8), the bottom end of the second spring (10) is fixedly connected to the rack (11), the rack (11) is slidably connected to the transmission groove (8), the transmission groove (8) is rotatably connected to a first circular shaft (12), the middle position of the first circular shaft (12) is fixedly connected to a gear (13), both ends of the first circular shaft (12) are fixedly connected to a first bevel gear (14), the bottom plate (1) is rotatably connected to the corresponding receiving groove (9), the top end of the second circular shaft (15) is fixedly connected to a second bevel gear (16), and the bottom end of the second circular shaft (15) is fixedly connected to an expansion plate (17).

2. The hole-drilling device for a concrete floor according to claim 1, characterized in that: The bottom plate (1) is designed as a rectangular structure, and first anti-slip grooves (18) are provided on both sides of the bottom end of the bottom plate (1).

3. The hole-drilling device for a concrete floor according to claim 1, characterized in that: One end of the expansion plate (17) is designed as an arc-shaped structure, and the bottom end of the expansion plate (17) is provided with a second anti-slip groove (19).

4. The hole-drilling device for a concrete floor according to claim 1, characterized in that: The rack (11) and the gear (13) are arranged correspondingly, and the rack (11) and the gear (13) are meshed and connected.

5. The device for drilling a hole in a concrete floor according to claim 1, wherein: The first bevel gear (14) and the second bevel gear (16) are arranged correspondingly, and the first bevel gear (14) and the second bevel gear (16) are meshed and connected.

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