Screw anchor for overhead ground

Abstract

The screw anchor comprises a bottom pad, an adjusting rod and a supporting rod, the interior of the adjusting rod and the interior of the supporting rod are each of a hollow structure, the supporting rod is connected to the top end of the adjusting rod in a threaded and sleeved mode, the bottom pad is detachably connected with the bottom end of the adjusting rod, and a screwing opening used for being matched with a screwing piece is formed in the end of the adjusting rod. A through hole is formed in the position, corresponding to the screwing opening, of the bottom pad, the connecting sleeve is used for being connected with an overhead plate in a clamped mode, and the top end of the supporting rod is connected into the connecting sleeve in a clamped mode. When the screw anchor is mounted, the overhead plate can be protected from being damaged; the utility model is suitable for the indoor decoration industry, and is matched with an overhead plate for use to facilitate leveling.

Description

TECHNICAL FIELD

[0001] The utility model relates to a screw anchor, in particular to a screw anchor for ground overhead. BACKGROUND

[0002] The screw anchor is used for being installed on the overhead board, when using, the screw anchor supports the overhead board so that the overhead board and the ground exist certain distance, then the floor heating module is laid on the overhead board. The screw anchor can help the overhead board to be leveled, and it is helpful to protect the subsequent laid floor heating pipe and make the ground temperature more uniform.

[0003] The utility model discloses a kind of screw anchors for dry method ground overhead, including elastic expansion pad, screw rod and support nut, elastic expansion pad is opened with clamping slot, screw rod bottom is fixed with clamping block, clamping block is engaged in clamping slot. Support nut is threadedly connected on the upper end of screw rod, elastic expansion pad, screw rod and support nut are through setting. The bottom of screw rod is opened with screwing mouth, construction personnel can operate screwing gun, the tool head of screwing gun is inserted into screwing mouth, the quick rotation of screw rod is realized, so that the height of screw rod can be quickly adjusted, and ground leveling is completed.

[0004] The screw anchor in the above patent needs to open internal thread hole on the overhead board first during installation process, then process external thread on the upper end of support nut, and use screwing gun to threadedly fix the upper end of support nut with the overhead board. However, when internal thread hole is opened on the overhead board and support nut is rotated and screwed, under the action of support nut rotation stress, overhead board cracking and damage can be caused. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of screw anchor for ground overhead, to solve the problem that the existing screw anchor is prone to cracking when installing.

[0006] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0007] A kind of screw anchor for ground overhead, including bottom pad, adjusting rod and support rod, adjusting rod, support rod inside are all hollow structure, support rod is threadedly connected in the top end of adjusting rod, bottom pad is detachably connected with the bottom end of adjusting rod, the end of adjusting rod is provided with the screwing mouth for cooperating with screwing piece, the position of bottom pad corresponding screwing mouth is provided with through-hole, it also includes the connecting sleeve for being clamped with overhead board, support rod top end is clamped in connecting sleeve.

[0008] As a limitation of the utility model: annular protrusion is provided on the inner wall of connecting sleeve, annular recess is provided on the position of the side wall of support rod top end corresponding annular protrusion, annular protrusion is clamped into annular recess to realize the clamping of connecting sleeve and support rod.

[0009] As a further limitation of the utility model: the height of the annular protrusion is greater than the depth of the annular groove.

[0010] As another limitation of the utility model: a first annular groove is arranged on the side wall of the top end of the support rod, a clamping ring is fixedly arranged in the first annular groove, a second annular groove is arranged on the inner wall of the connecting sleeve and corresponds to the clamping ring, and the clamping ring is clamped into the second annular groove to realize the clamping of the connecting sleeve and the support rod.

[0011] As a further limitation of the utility model: the diameter of the circle on which the clamping ring is located is greater than the diameter of the circle on which the second annular groove is located.

[0012] As another limitation of the utility model: the material of the connecting sleeve is nylon.

[0013] As a further limitation of the utility model: a plurality of apertures are arranged on the side wall of the connecting sleeve and extend along the axial direction of the support rod.

[0014] As another limitation of the utility model: a clamping block is fixedly arranged at the bottom of the adjusting rod, a clamping groove is arranged on the bottom pad and corresponds to the clamping block, and the clamping block is clamped into the clamping groove to realize the detachable connection of the adjusting rod and the bottom pad.

[0015] As a further limitation of the utility model: the bottom pad is made of rubber material.

[0016] Thanks to the above technical scheme, the utility model compared with the prior art has the beneficial effects that:

[0017] (1) The utility model comprises a bottom pad, an adjusting rod, a support rod and a connecting sleeve; the bottom pad is detachably connected with the bottom end of the adjusting rod, the top end of the adjusting rod is threadedly sleeved in the support rod, and the top end of the support rod is clamped in the connecting sleeve; in use, a through hole is formed in the overhead plate, the connecting sleeve is clamped in the through hole, and the connecting sleeve is expanded after the top end of the support rod is clamped in the connecting sleeve, so that the connecting sleeve is tightly connected with the overhead plate. The utility model does not need to form an internal threaded hole in the overhead plate, and the support rod and the connecting sleeve are clamped to fix the overhead plate, the connecting sleeve and the support rod, thereby solving the problem that the overhead plate is cracked when a thread is screwed in.

[0018] (2) The adjusting rod and the support rod are both hollow, and the top and bottom of the adjusting rod are both provided with a screwing opening; the screwing opening at the bottom is used to help a screwing member to screw the adjusting rod into the support rod, and the screwing opening at the top helps the screwing member to extend into the screwing opening from above the overhead plate, thereby realizing the adjustment of the height of the adjusting rod from above the overhead plate, and the operation is more convenient.

[0019] In summary, the utility model can protect the overhead plate from being damaged when a screw anchor is installed; and the utility model is suitable for the indoor decoration industry and is used with the overhead plate to facilitate leveling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a schematic structural diagram of Example 1 of the present utility model;

[0022] Figure 2 This is an exploded view of Example 1 of the present utility model;

[0023] Figure 3 This is a cross-sectional schematic diagram of the adjustment rod and the base pad in Example 1 of the present utility model;

[0024] Figure 4 This is a schematic structural diagram of the connecting sleeve in Example 1 of the present utility model;

[0025] Figure 5 This is a schematic structural diagram of the support rod in Example 1 of the present utility model;

[0026] Figure 6 This is a schematic structural diagram of the adjustment rod in Example 1 of the present utility model;

[0027] Figure 7 This is a schematic structural diagram of the base pad in Example 1 of the present utility model;

[0028] Figure 8 This is an exploded view of Example 2 of the present utility model;

[0029] Figure 9 This is a schematic structural diagram of the connecting sleeve in Example 2 of the present utility model;

[0030] Figure 10 This is an exploded view of the support rod and the snap ring in Example 2 of the present utility model.

[0031] In the figure: 1-base pad, 11-card slot, 12-via;

[0032] 2-adjusting rod, 21-block, 22-screw opening;

[0033] 3-support rod, 4-connecting sleeve, 5-annular protrusion, 6-annular groove, 7-notch, 8-first annular groove, 9-second annular groove, 10-clamping ring. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and do not constitute a limitation to the present invention.

[0035] The orientation words or position relations of "upper", "lower", "left", "right" and the like described in the embodiments are based on the orientation relations in the drawings of the utility model, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element must have a specific orientation, a specific orientation structure and operation, and therefore cannot be understood as a limitation on the content protected by the utility model. Figure 1

[0036] Embodiment 1

[0037] As shown in the drawings, Figures 1-7 , the embodiment comprises, from bottom to top, a bottom pad 1, an adjusting rod 2, a supporting rod 3 and a connecting sleeve 4. In use, the connecting sleeve 4 is clamped in a through hole on the overhead plate, and the supporting rod 3 can expand the connecting sleeve 4 outward, so that the connecting sleeve 4 is tightly clamped with the overhead plate, and the problem of damage to the overhead plate caused by opening a threaded hole or screwing in a screw can be avoided.

[0038] As shown in the drawings, Figure 2 , 3 , the adjusting rod 2 and the supporting rod 3 are hollow inside, and the supporting rod 3 is provided with an internal thread at one end close to the adjusting rod 2, as shown in Figure 5 , and the adjusting rod 2 is provided with an external thread, and the supporting rod 3 is threadedly sleeved at the top end of the adjusting rod 2. In the embodiment, the adjusting rod 2 and the supporting rod 3 are made of steel material.

[0039] The bottom end of the adjusting rod 2 is detachably connected with the bottom pad 1, the bottom pad 1 is made of rubber material, and the adjusting rod 2 is fixedly provided with a clamping block 21 at the bottom, as shown in Figure 2 , 3 ,6. The bottom pad 1 is provided with a clamping groove 11 at a position corresponding to the clamping block 21, as shown in Figure 7 , and the clamping block 21 is clamped into the clamping groove 11 to realize the detachable connection of the adjusting rod 2 and the bottom pad 1. This part is prior art, and the structure of the bottom pad 1 and the connection mode will not be described in detail. Of course, in the embodiment, the adjusting rod 2 and the bottom pad 1 can also be detachably connected in any other way in the prior art, such as the combination of a bolt and a nut.

[0040] The connecting sleeve 4 is clamped and fixed with the top end of the supporting rod 3. Specifically, the connecting sleeve 4 is made of nylon material. As shown in Figure 4 , the inner wall of the connecting sleeve 4 is provided with an annular protrusion 5, as shown in Figure 5As shown, the top end side wall of the support rod 3 is provided with an annular recess 6 at a position corresponding to the annular protrusion 5, and the annular protrusion 5 is clamped into the annular recess 6 to achieve the clamping connection between the connecting sleeve 4 and the support rod 3. It should be noted that the height of the annular protrusion 5 is greater than the depth of the annular recess 6, and both the height and the depth refer to the size in the left-right direction. The purpose of this structure is that when the top end of the support rod 3 is inserted into the connecting sleeve 4 and the annular protrusion 5 is clamped into the annular recess 6, the side wall of the connecting sleeve 4 can be expanded outward by the support rod 3, thereby making the connection between the connecting sleeve 4 and the overhead plate more firm.

[0041] To improve the present embodiment, as shown in Figure 2 , 4 The side wall of the connecting sleeve 4 is provided with a plurality of openings 7, which extend along the axial direction of the support rod 3, i.e. in the up-down direction. When the top end of the support rod 3 is clamped into the connecting sleeve 4, the opening 7 structure can prevent the connecting sleeve 4 from being broken.

[0042] Further, as shown in Figure 2 , 6 The top end and the bottom end of the adjusting rod 2 are provided with screwing openings 22 for cooperating with a screwing tool, as shown in Figure 2 , 7 The bottom pad 1 is provided with a through hole 12 at a position corresponding to the screwing opening 22. During assembly, the tool head of the screwing tool (screw gun) is inserted into the screwing opening 22 at the bottom of the bottom pad 1 through the through hole 12, and the screwing tool makes the adjusting rod 2 screwed into the support rod 3.

[0043] When using the present embodiment, the clamping block 21 at the bottom end of the adjusting rod 2 is clamped into the clamping groove 11 of the bottom pad 1, and then the adjusting rod 2 is screwed into the support rod 3 by using the screwing tool. A through hole is pre-formed on the overhead plate, the connecting sleeve 4 is placed in the through hole, and the top end of the support rod 3 is hammered into the connecting sleeve 4 by using a rubber hammer. After the top end of the support rod 3 is clamped in, the connecting sleeve 4 is expanded outward, achieving firm fixation between the connecting sleeve 4 and the overhead plate, which is equivalent to the principle of embedded expansion. Then, the overhead plate provided with the present embodiment is placed on the ground, and the present embodiment is located between the ground and the overhead plate, so that the overhead plate has a certain distance from the ground. The present embodiment can solve the problem that the threaded connection between the support rod 3 and the overhead plate in the prior art causes the overhead plate to be subjected to rotational stress and then easily cracked. In the prior art, the support nut needs to be screwed in to achieve connection with the overhead plate. In the present embodiment, the support rod 3 can be fixed by being hammered into the connecting sleeve 4 by using a rubber hammer, which is relatively labor-saving and faster in installation. In addition, the overhead plate is relatively hard, the support nut in the prior art is made of steel material and is also relatively hard, while the connecting sleeve 4 in the present embodiment is made of plastic material, which is relatively soft compared with the support nut. When the overhead plate vibrates, the interaction force between the plastic and the overhead plate is relatively weak compared with the interaction force between the support nut and the overhead plate, thereby reducing the damage to the overhead plate.

[0044] When leveling, the length of the adjusting rod 2 can be adjusted by inserting the tool head of the screwing member into the screwing hole 22 in the bottom through the through hole 12, or the length of the adjusting rod 2 can be adjusted from above the overhead plate by inserting the tool head of the screwing member into the screwing hole 22 in the top of the adjusting rod 2 after passing through the connecting sleeve 4 and the inside of the supporting rod 3, so as to adjust the distance between the overhead plate and the ground and realize leveling.

[0045] Embodiment 2

[0046] As shown in Figures 8-10 , the structure of the present embodiment is basically the same as that of Embodiment 1, and the difference lies in the clamping manner of the top end of the supporting rod 3 and the connecting sleeve 4. Specifically, as shown in Figure 8 , 10 , in the present embodiment, a first annular groove 8 is arranged on the side wall of the top end of the supporting rod 3, and a clamping ring 10 is fixed in the first annular groove 8. The clamping ring 10 is also made of steel material. As shown in Figure 9 , a second annular groove 9 is arranged on the inner wall of the connecting sleeve 4 corresponding to the position of the clamping ring 10, and the clamping ring 10 is clamped into the second annular groove 9 to realize the clamping of the connecting sleeve 4 and the supporting rod 3. It should be noted that, considering the processing technology, it is more difficult to directly process a protrusion on the supporting rod 3, and therefore, the clamping ring 10 is separately fixed on the supporting rod 3, and then the clamping ring 10 is clamped into the second annular groove 9.

[0047] It should be noted that the diameter of the circle where the clamping ring 10 is located is greater than the diameter of the circle where the second annular groove 9 is located. The purpose of this structure is also to enable the side wall of the connecting sleeve 4 to be expanded outward by the supporting rod 3 after the top end of the supporting rod 3 is clamped into the connecting sleeve 4, so as to make the connection between the connecting sleeve 4 and the overhead plate more firm. Except for the structure of the supporting rod 3, the structure of the adjusting rod 2, the structure of the bottom pad 1, and the material of the connecting sleeve 4, which are all the same as those of Embodiment 1, the present embodiment will not be described in detail.

[0048] The use process of the present embodiment is described with reference to Embodiment 1.

[0049] It should be noted that the above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent replacements to some 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 screw anchor for overhead use on the ground, comprising a base pad, an adjusting rod and a support rod, wherein the adjusting rod and the support rod are both hollow structures, the support rod is threadedly sleeved on the top end of the adjusting rod, the base pad is detachably connected to the bottom end of the adjusting rod, the end of the adjusting rod is provided with a screw opening for cooperating with a screw member, and a through hole is provided on the base pad at a position corresponding to the screw opening, characterized in that: The connecting sleeve is used for connecting with the overhead plate, and the top end of the supporting rod is connected with the connecting sleeve.

2. Screw anchor for ground overhead use according to claim 1, characterized in that An annular protrusion is arranged on the inner wall of the connecting sleeve, and an annular groove corresponding to the annular protrusion is arranged on the side wall of the top end of the supporting rod, and the annular protrusion is clamped into the annular groove to realize the clamping connection between the connecting sleeve and the supporting rod.

3. Screw anchor for ground overhead use according to claim 2, characterized in that The height of the annular protrusion is greater than the depth of the annular groove.

4. A screw anchor for overhead ground mounting according to claim 1, characterized in that A first annular groove is arranged on the side wall of the top end of the supporting rod, a clamping ring is fixedly arranged in the first annular groove, a second annular groove corresponding to the clamping ring is arranged on the inner wall of the connecting sleeve, and the clamping ring is clamped into the second annular groove to realize the clamping connection between the connecting sleeve and the supporting rod.

5. Screw anchor for ground overhead use according to claim 4, characterized in that The diameter of the circle where the clamping ring is located is greater than the diameter of the circle where the second annular groove is located.

6. Screw anchor for overhead ground mounting according to any of claims 1 to 5, characterized in that The material of the connecting sleeve is nylon.

7. Screw anchor for ground overhead use according to claim 6, characterized in that A plurality of slits are arranged on the side wall of the connecting sleeve, and the slits extend along the axial direction of the supporting rod.

8. A screw anchor for overhead ground anchoring according to any one of claims 1 to 5, 7, characterized in that A clamping block is fixedly arranged at the bottom of the adjusting rod, a clamping groove corresponding to the clamping block is arranged on the bottom pad, and the clamping block is clamped into the clamping groove to realize the detachable connection between the adjusting rod and the bottom pad.

9. Screw anchor for ground overhead use according to claim 8, characterized in that The bottom pad is made of rubber material.

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