Turnover pre-embedded wire box inner core tool

Abstract

The utility model relates to the technical field of building construction, and provides a turnover pre-embedded wire box inner core tool which comprises an inner core inserted in a wire box in a sliding mode, an installation column penetrates through the inner core and is fixedly connected with the inner core, a spring is sleeved on the installation column, one end of the installation column is sleeved and fixedly connected with a fixing disc, and the spring is fixedly connected with the fixing disc. The length of the spring is larger than that of the mounting column, and a pushing piece penetrates through the mounting column. The pushing part comprises a stud, the stud is in threaded connection with the interior of the installation column, one end, close to the wire box, of the stud is fixedly connected with a pushing head, one end, away from the wire box, of the stud is fixedly connected with a rotating head, and the rotating head is provided with a clamping groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction, more specifically, especially relates to a turnover type pre -buried wire box inner core tool. BACKGROUND

[0002] The pre -buried bottom box widely used in the current building engineering construction operation is the basic method to solve the hidden cable.

[0003] But limited by the steel bar dense, formwork reinforcing process, anti -blocking measures such as limit, often appear after the formwork cannot accurate positioning wire box position problem, workers rely on image with hammer, electric drill and so on in structure seek, often will cause structure damage, affect structure appearance and so on adverse conditions occur, its reason is that the existing pre -buried mode adopts foam board to fill the bottom box cavity and then wraps with adhesive tape, and the fixed volume is determined.

[0004] And, such as the patent number for CN207743661 U disclosed in prior art a pre -buried wire box kit, including pre -buried wire box, wire box sealing device and supporting device, one end of pre -buried wire box is provided with external connection opening, the side wall of pre -buried wire box is provided with a plurality of pre -buried wire connection openings;Wire box sealing device includes cover body assembly and pressure relief cotton body assembly, cover body assembly is arranged in the external connection opening, cover body assembly can prevent cement mortar from entering pre -buried wire box when injecting, pressure relief cotton body assembly is contained in cover body assembly, pressure relief cotton body assembly has elasticity, will make cover body assembly bounce out of rough wall;Supporting device includes base support assembly and pressure relief spring, base support assembly is arranged on the outer side wall of pre -buried wire box, pressure relief spring is arranged at one end of base support assembly away from pre -buried wire box, pressure relief spring helps cover body assembly to expose when building formwork is removed, so it is not necessary to position the pre -buried wire box and chisel, and the secondary decoration does not need to be plugged in the external opening of pre -buried wire box to prevent blockage, and the process can be shortened, and the labor amount and material cost can be saved.The pre -buried wire box kit in prior art can position the position of the pre -buried wire box, but the bottom elastic component in it is poured into the concrete and cannot be used repeatedly, causing waste. UTILITY MODEL CONTENTS

[0005] The utility model overcomes the above-mentioned situation, aims at providing a turnover type pre -buried wire box inner core tool, which can position the position of the pre -buried wire box and be used repeatedly, reducing the cost.

[0006] The utility model provides a kind of turnover pre-buried wire box inner core tool, including the inner core slidingly inserted in wire box, through and fixed with mounting post on the inner core, spring is sleeved on the mounting post, one end of the mounting post is sleeved and fixed with fixed disc, the spring is fixedly connected on the fixed disc, the length of the spring is greater than the length of the mounting post, the mounting post is through with pusher;The pusher includes stud, the stud is screwed in the mounting post, the end of the stud close to the wire box is fixed with push head, the end of the stud away from the wire box is fixed with rotating head, slot is opened on the rotating head.

[0007] Further, the end of the mounting post close to the wire box is flush with the side of the inner core close to the wire box.

[0008] Further, the length of the spring is 2 times the length of the mounting post.

[0009] Further, the slot is cross slot or a slot.

[0010] Further, the side of the push head close to the wire box is flush with the same side end surface of the mounting post, and the side of the rotating head away from the wire box is flush with the same side end surface of the inner core.

[0011] Further, the thickness of the top wall of the inner core is greater than the thickness of the flange.

[0012] Further, the thickness of the top wall is 10mm, and the thickness of the flange is 3mm.

[0013] Further, the inner core and the wire box are provided with heat shrink film.

[0014] Further, the heat shrink film is sleeved with rubber band.

[0015] Further, the inner core is provided with mounting slot.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] In the utility model, the side of the inner core away from the wire box is attached to the formwork through the pushing force of the recovery deformation of the spring, which reduces the difficulty of finding the position of the wire box after pouring concrete and removing the formwork, the staff uses the electric screwdriver to be clamped into the slot to make the stud rotate, the pusher moves relative to the mounting post, the rotating head, and the inner core, the mounting post and the spring are pushed out of the wire box, the non-destructive form removal is realized, the inner core tool can be recycled, and the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation to the present application. In the drawings:

[0019] Figure 1 It is a whole structure schematic diagram of the inner core tool of the recyclable pre-buried wire box Figure 1 ;

[0020] Figure 2 It is a whole structure schematic diagram of the inner core tool of the recyclable pre-buried wire box Figure 2 ;

[0021] Figure 3 It is an internal schematic diagram of the inner core

[0022] Figure 4 It is a structure split diagram

[0023] Figure 5 It is a side view of the recyclable pre-buried wire box inner core tool

[0024] Figure 6 It is a schematic diagram of the pushing piece.

[0025] In the drawings: 1, wire box; 2, inner core; 21, groove; 22, top wall; 23, flange; 24, mounting groove; 3, mounting column; 4, spring; 5, fixed disc; 6, pushing piece; 61, stud; 62, pushing head; 63, rotating head; 64, clamping groove; 7, template; 8, heat shrink film; 9, rubber band. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Specific embodiments:

[0028] For example Figure 1-6As shown, a kind of turnover pre-buried wire box inner core tool, including the inner core 2 of sliding insertion in wire box 1, wire box 1 is the PVC wire box of market, and inner core 2 is made of PVC material, and recess 21 is set in outer side wall, setting recess 21 can avoid screw or screw connector inside wire box 1;Mounting column 3 is fixedly connected in inner core 2 on the penetration, spring 4 is sleeved on mounting column 3, the end of mounting column 3 away from wire box 1 is sleeved and fixedly connected with fixed disc 5, the end of spring 4 away from wire box 1 is fixedly connected on fixed disc 5, the end of mounting column 3 close to wire box 1 is flush with the side of inner core 2 close to wire box 1, the length of spring 4 is greater than the length of mounting column 3, in the embodiment, the length of spring 4 is 2 times the length of mounting column 3;Pushing member 6 is penetrated in mounting column 3, pushing member 6 includes stud 61, stud 61 is threadedly connected in mounting column 3, the end of stud 61 close to wire box 1 is fixedly connected with pushing head 62, the end of stud 61 away from wire box 1 is fixedly connected with rotating head 63, clamping groove 64 is set on rotating head 63, clamping groove 64 is cross slot or slot, in the embodiment, it is cross slot, to facilitate staff to rotate pushing member 6 by using electric screwdriver.Pushing member 2 is inserted into the wire box 1 (the installation means of wire box 1 is conventional technical means, not repeated here) of mounting, and template 7 is supported, since the length of spring 4 is greater than the length of mounting column 3, the restoring deformation of spring 4 can make the side of inner core 2 away from wire box 1 adhere to template 7, after pouring concrete and removing template 7, the difficulty of finding the position of wire box 1 is reduced, staff uses electric screwdriver to be inserted into clamping groove 64 to make stud 61 rotate, makes pushing member 6 move relative to mounting column 3, rotating head 63, and pushes out wire box 1 with inner core 2, mounting column 3, spring 4, realizes nondestructive demolding, and inner core tool can be recycled, reduce cost.

[0029] As Figure 1-6 Shown, the end face of pushing head 62 close to the side of wire box 1 is flush with the same side end face of mounting column 3, the end face of rotating head 63 away from the side of wire box 1 is flush with the same side end face of inner core 2, the internal through hole of mounting column 3 is provided with the screw thread suitable for stud 61, for threadedly connecting stud 61.

[0030] As Figure 1-6 Shown, when rotating pushing member 6 makes inner core 2 ejection wire box 1, the top wall 22 of inner core 2 is stressed greatly, the thickness of the top wall 22 of inner core 2 is greater than the thickness of the flange 23 of inner core 2, the thickness of top wall 22 is 10mm, and the thickness of flange 23 is all 3mm, by increasing the thickness of the top wall 22 of inner core 2, to cope with the counterthrust when rotating pushing member 6 and ejecting inner core 2.

[0031] As Figure 1-6As shown, when pouring, since the inner core 2 is slidingly inserted into the wire box 1, the concrete slurry is easy to enter into the gap between the wire box 1 and the inner core 2; the inner core 2 and the wire box 1 are provided with a heat shrinkable film 8, the two sides of the heat shrinkable film 8 are heated, the heat shrinkable film is clamped on the outer side of the inner core 2 and the wire box 1 to form a protective film, the middle part of the heat shrinkable film 8 is not heated, and the length of the heat shrinkable film 8 along the sliding direction of the inner core 2 is the sum of the lengths of the inner core 2 and the wire box 1, so that the heat shrinkable film 8 has sufficient length to cope with the expansion and contraction of the inner core 2, and does not affect the movement of the side wall of the inner core 2 to fit the formwork 7, and through the protection of the heat shrinkable film 8, the probability of the concrete slurry entering the gap between the inner core 2 and the wire box 1 is reduced.

[0032] As shown in the figure, Figure 1-6 As shown, the heat shrinkable film 8 located on one side of the inner core 2 is sleeved with a rubber band 9 to fix the heat shrinkable film 8 and improve the stability of the heat shrinkable film 8, and the heat shrinkable film 8 located on one side of the wire box 1 is fixed on the wire box 1 by heat shrinkage, and the heat shrinkage length of this side is at least one third of the length of the wire box 1, which is half in this embodiment.

[0033] As shown in the figure, Figure 1-6 As shown, the inner core 2 is provided with a mounting groove 24, which is used to place the rubber band 9, and after the rubber band 9 is sleeved on the heat shrinkable film 8 and the inner core 2, the rubber band 9 on this side can be pushed into the mounting groove 24 to facilitate the fixation of the heat shrinkable film 8, and the rubber band can fill the mounting groove 24.

[0034] The working principle of the inner core tool of the recyclable embedded wire box in this embodiment is as follows: the inner core 2 is inserted into the installed wire box 1, the heat shrinkable film 8 is heated, the rubber bands 9 are sleeved on both sides, the formwork 7 is supported, and due to the length of the spring 4 being greater than the length of the mounting column 3, the inner core 2 is pushed away from the wire box 1 by the restoring deformation of the spring 4 to fit the formwork 7, after pouring concrete and removing the formwork 7, the difficulty of finding the position of the wire box 1 is reduced, the staff uses the electric screwdriver to be clamped into the clamping groove 64 to make the stud 61 rotate, the pushing piece 6 moves relative to the mounting column 3, the rotating head 63 rotates, and the inner core 2, the mounting column 3 and the spring 4 are pushed out of the wire box 1 to realize non-destructive demolding, the inner core tool can be recycled, and the cost is reduced.

[0035] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A reusable pre-embedded junction box core tool, characterized in that: The device includes an inner core (2) that is slidably inserted into a junction box (1). A mounting post (3) is inserted through and fixed to the inner core (2). A spring (4) is sleeved on the mounting post (3). A fixing plate (5) is sleeved and fixed to one end of the mounting post (3). The spring (4) is fixedly connected to the fixing plate (5). The length of the spring (4) is greater than the length of the mounting post (3). A pusher (6) is inserted through the mounting post (3). The pusher (6) includes a stud (61). The stud (61) is screwed into the mounting post (3). A pusher head (62) is fixed to one end of the stud (61) near the junction box (1). A rotating head (63) is fixed to one end of the stud (61) away from the junction box (1). A slot (64) is provided on the rotating head (63).

2. The reusable pre-embedded junction box core tool according to claim 1, characterized in that: The end of the mounting post (3) near the junction box (1) is flush with the side of the inner core (2) near the junction box (1).

3. The reusable pre-embedded junction box core tool according to claim 1, characterized in that: The length of the spring (4) is twice the length of the mounting post (3).

4. The reusable pre-embedded junction box core tool according to claim 1, characterized in that: The slot (64) is a cross-shaped slot or a slot with a straight groove.

5. A reusable pre-embedded junction box core tool according to claim 1, characterized in that: The side of the push head (62) closest to the wire box (1) is flush with the same side end face of the mounting post (3), and the side of the rotating head (63) away from the wire box (1) is flush with the same side end face of the inner core (2).

6. A reusable pre-embedded junction box core tool according to claim 1, characterized in that: The thickness of the top wall (22) of the inner core (2) is greater than the thickness of the flange (23).

7. A reusable pre-embedded junction box core tool according to claim 6, characterized in that: The thickness of the top wall (22) is 10 mm, and the thickness of the flange (23) is 3 mm.

8. A reusable pre-embedded junction box core tool according to claim 1, characterized in that: Heat shrink film (8) is provided on the inner core (2) and the wire box (1).

9. A reusable pre-embedded junction box core tool according to claim 8, characterized in that: The heat shrink film (8) is fitted with a rubber band (9).

10. A reusable pre-embedded junction box core tool according to claim 9, characterized in that: The inner core (2) has an installation groove (24).

Images