Polishing structure for building construction

Abstract

The utility model discloses a polishing structure for building construction, which is characterized in that an auxiliary polishing plate body is detachably arranged on one side of a main polishing plate body, the lower end of the auxiliary polishing plate body is flush with the lower end of the main polishing plate body, and the upper end of the auxiliary polishing plate body is higher than the upper end of the main polishing plate body; the abrasive paper is connected with the main polishing plate body and the auxiliary polishing plate body at the same time, and a holding piece is arranged at the upper end of the main polishing plate body. Two positioning pieces are arranged on the main polishing plate body and comprise telescopic rods, the telescopic rods are movably arranged on the main polishing plate body in a penetrating mode, the telescopic rods are sleeved with return springs, the upper end of the main polishing plate body is connected with the lower ends of the return springs, the upper ends of the return springs are connected with the lower ends of limiting rings, and the upper half sections of the telescopic rods are sleeved with the limiting rings; the abrasive paper is provided with two openings used in cooperation with the telescopic rods. The polishing device has the advantages of being high in polishing efficiency, capable of reducing bonding difficulty, wide in applicability, simple in structure, low in manufacturing cost, not prone to damage and the like.

Description

Technical Field

[0001] The utility model relates to a grinding structure, in particular to a grinding structure used for building construction. Background Art

[0002] In building construction, it is necessary to polish the wall after the putty is finished. During the polishing, the operator can polish it with sandpaper in hand. However, directly polishing with sandpaper in hand not only has a poor effect, but also causes soreness in the fingers after long-term polishing. In order to solve this problem, the operator will fix the sandpaper on the polishing frame. The fixing method can be to directly glue the sandpaper on the polishing frame, or to set a clamping mechanism on both sides of the polishing frame, and clamp the sandpaper on the polishing frame through the clamping structure, and then the operator holds the polishing frame for polishing. The polishing frame is also called a sandpaper frame, which includes a polishing plate body, and the sandpaper is glued to the inner side of the polishing plate body. A handle is set on the outer side of the polishing plate body, and the operator directly holds the handle for polishing. Since the time for polishing the wall is generally long, in order to reduce the labor intensity of the operator, the size of the existing handheld polishing frame is small, so as to reduce the overall weight of the polishing frame, but this structure will have the following problems:

[0003] 1) Due to the small size of the whole, the contact area between the grinding plate and the grinding wall is limited, and the grinding efficiency becomes low;

[0004] 2) Sandpaper can be made by two methods: hook and loop and clamp. Clamping requires setting a clamping structure on the sanding plate, which requires using sandpaper larger than the sanding plate. The excess part of the sandpaper is used for clamping by the clamping structure. This method not only requires setting a clamping structure, which increases the cost, but also requires sandpaper of a larger size each time, which causes waste. When hook and loop is used, the hook and loop surface of the sanding plate can be directly connected to the hook and loop sandpaper. A clamping structure needs to be set on the sanding plate. In order to avoid wasting sandpaper, the sandpaper is cut into a size corresponding to the size of the sanding plate. This results in the need to align the edge of the sandpaper with the edge of the sanding plate each time the hook and loop is used, which increases the difficulty of bonding.

[0005] 3) The operator cannot hold the grinding plate to grind the higher grinding area, and the operator needs to stand on the bracket to operate, which is very inconvenient and poses a safety hazard;

[0006] 4) It is impossible to effectively process the internal corners.

[0007] 5) When the operator holds the handle for grinding, the contact part between the hand and the handle is prone to slipping, affecting the grinding efficiency and quality.

[0008] Therefore, those skilled in the art are committed to providing a grinding structure for building construction that can effectively solve the above-mentioned technical problems. Utility Model Content

[0009] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a grinding structure for construction that can effectively solve the above-mentioned technical problems.

[0010] To achieve the above-mentioned purpose, the utility model provides a grinding structure for construction, comprising a main grinding plate body, a secondary grinding plate body is detachably provided on one side of the main grinding plate body, the lower end of the secondary grinding plate body is flush with the lower end of the main grinding plate body, and the upper end of the secondary grinding plate body is higher than the upper end of the main grinding plate body; sandpaper is connected to the main grinding plate body and the secondary grinding plate body at the same time, and a gripper is provided on the upper end of the main grinding plate body;

[0011] The holding member comprises a connecting portion, the lower end of the connecting portion is connected to the upper end of the main grinding plate body, the upper end of the connecting portion is connected to the lower end of the contraction portion, the upper end of the contraction portion is connected to the lower end of the hand-held portion, the width of the hand-held portion is greater than the width of the connecting portion, and the width of the connecting portion is greater than the width of the contraction portion;

[0012] The upper end of the handheld part is provided with a connecting piece, and the connecting piece is provided with an extension rod;

[0013] Two positioning members are arranged on the main grinding plate body, and the positioning members include a telescopic rod, and the telescopic rod is movably inserted into the main grinding plate body, and a return spring is sleeved on the telescopic rod. The upper end of the main grinding plate body is connected to the lower end of the return spring, and the upper end of the return spring is connected to the lower end of a limiting ring, and the limiting ring is sleeved on the upper half of the telescopic rod. Two openings are provided on the sandpaper for use with the telescopic rods.

[0014] Preferably, a limiting groove is provided on one side of the main grinding plate body, and a limiting strip is provided on the auxiliary grinding plate body. The main grinding plate body and the auxiliary grinding plate body are limited by the limiting strip and the limiting groove, and are detachably connected by screws.

[0015] Preferably, a first weight-reducing opening is opened in the upper half of the auxiliary polishing plate body, and the first weight-reducing opening extends along the length direction of the auxiliary polishing plate body and penetrates the auxiliary polishing plate body.

[0016] Preferably, the main grinding plate body and the auxiliary grinding plate body are both provided with a hook-surface Velcro layer, and the sandpaper is detachably connected to the main grinding plate body and the auxiliary grinding plate body through the hook-surface Velcro layer.

[0017] Preferably, the connecting portion, the contracting portion and the hand-held portion are an integrally formed structure;

[0018] The outer walls on both sides of the contraction portion are provided with a plurality of anti-skid ridges, and the cross section of each anti-skid ridge is semicircular.

[0019] Preferably, a second weight-reducing opening is provided on the handle, and the second weight-reducing opening is located at the contraction portion and the hand-holding portion and passes through the contraction portion and the hand-holding portion.

[0020] Preferably, a plurality of transverse reinforcing plates and a plurality of longitudinal reinforcing plates are arranged in the second weight-reducing opening, each of the transverse reinforcing plates is located in the contraction portion, and each of the longitudinal reinforcing plates is located in the hand-holding portion.

[0021] Preferably, the connecting member includes a positioning block, a positioning groove is provided at the upper end of the hand-held part, the positioning block is detachably arranged in the positioning groove, a rotating disk is rotatably provided at the upper end of the positioning block, the upper end of the rotating disk is hingedly connected to the upper end of the extension rod, and a threaded connecting sleeve is provided at the lower end of the extension rod.

[0022] Preferably, the positioning member also includes a bottom block, the telescopic rod is movably inserted into the bottom block, the lower end of the bottom block is connected to the main grinding plate, the upper end of the bottom block is connected to the lower end of the sleeve, the return spring and the limiting ring are both located in the sleeve, the upper end of the sleeve is provided with a top block, and the telescopic rod can movably pass through the top block.

[0023] Preferably, the inner wall of the sleeve is provided with a guide groove, and the outer wall of the limiting ring is provided with a guide portion used in conjunction with the guide groove.

[0024] The beneficial effects of the utility model are as follows: on the one hand, by providing a holding piece, the operator can grasp the holding piece with both hands at the same time when the size is increased, thereby maintaining stability during grinding while effectively improving the grinding efficiency; on the other hand, by providing a positioning piece, the bonding efficiency of the sandpaper is improved and the bonding difficulty is reduced; on the other hand, by providing an extension rod, it is possible to grind higher areas without contacting other tools; and an auxiliary grinding plate can be provided as needed, and the first weight-reducing port and the second weight-reducing port can be provided to make the entire structure lighter and easier for the operator to use. At the same time, it also has the beneficial effects of simple structure, wide applicability, low manufacturing cost and not easy to damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.

[0026] Figure 2 yes Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0027] Figure 3 It is a structural schematic diagram of the utility model when the handle is directly used by hand without installing an extension rod.

[0028] Figure 4 yes Figure 3 Another three-dimensional structural schematic diagram of .

[0029] Figure 5 yes Figure 3 Schematic diagram of the structure when the auxiliary grinding plate is not installed.

[0030] Figure 6 It is a structural schematic diagram of the holding piece in the utility model.

[0031] Figure 7 It is a schematic diagram of the structure of the positioning part.

[0032] Figure 8 yes Figure 7 The schematic diagram of the structure in which the sleeve is not provided.

[0033] Fig. 9 It is a structural schematic diagram of the sleeve in the utility model.

[0034] Fig.10 It is a structural schematic diagram in which sandpaper is arranged on a main grinding plate body and an auxiliary grinding plate body at the same time.

[0035] Fig.11 It is a schematic diagram of the structure of sandpaper in the first usage state.

[0036] Fig.12 It is a schematic diagram of the structure of sandpaper in the second usage state.

[0037] Fig.13 It is a structural schematic diagram of the prior art. DETAILED DESCRIPTION

[0038] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0039] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] like Figures 1 to 13 As shown, a grinding structure for construction includes a main grinding plate body 1, a secondary grinding plate body 9 is detachably provided on one side of the main grinding plate body 1, the lower end of the secondary grinding plate body 9 is flush with the lower end of the main grinding plate body 1, and the upper end of the secondary grinding plate body 9 is higher than the upper end of the main grinding plate body 1; sandpaper 10 is connected to the main grinding plate body 1 and the secondary grinding plate body 9 at the same time, and a holding piece 2 is provided on the upper end of the main grinding plate body 1;

[0042] The holding member 2 includes a connecting portion 3, the lower end of the connecting portion 3 is connected to the upper end of the main grinding plate body 1, the upper end of the connecting portion 3 is connected to the lower end of the contraction portion 5, the upper end of the contraction portion 5 is connected to the lower end of the hand-held portion 6, the width of the hand-held portion 6 is greater than the width of the connecting portion 3, and the width of the connecting portion 3 is greater than the width of the contraction portion 5;

[0043] A connecting piece 7 is disposed at the upper end of the handheld portion 6, and an extension rod 8 is disposed on the connecting piece 7;

[0044] Two positioning members 11 are provided on the main grinding plate body 1, and the positioning member 11 includes a telescopic rod 13, and the telescopic rod 13 is movably inserted into the main grinding plate body 1, and a return spring 15 is sleeved on the telescopic rod 13. The upper end of the main grinding plate body 1 is connected to the lower end of the return spring 15, and the upper end of the return spring 15 is connected to the lower end of a limiting ring 16, and the limiting ring 16 is sleeved on the upper half of the telescopic rod 13. Two openings 17 for use with the telescopic rods 13 are provided on the sandpaper 10.

[0045] A limiting groove 18 is provided on one side of the main grinding plate body 1, and a limiting strip 19 is provided on the auxiliary grinding plate body 9. The main grinding plate body 1 and the auxiliary grinding plate body 9 are limited by the limiting strip 19 and the limiting groove 18, and are detachably connected by screws 20.

[0046] The main grinding plate body 1 and the auxiliary grinding plate body 9 are detachably connected together in the above manner. When the auxiliary grinding plate body 9 is not needed for processing the internal angle, the auxiliary grinding plate body 9 can be removed from the main grinding plate body 1, thereby further reducing the overall weight and reducing the labor intensity of the operator.

[0047] In order to further reduce the weight, a first weight-reducing opening 21 is provided in the upper half of the auxiliary polishing plate body 9, and the first weight-reducing opening 21 extends along the length direction of the auxiliary polishing plate body 9 and penetrates the auxiliary polishing plate body 9. A second weight-reducing opening 31 is provided on the handle 2, and the second weight-reducing opening 31 is located at the contraction portion 5 and the hand-held portion 6 and penetrates the contraction portion 5 and the hand-held portion 6.

[0048] The main grinding plate body 1 and the auxiliary grinding plate body 9 are both provided with hook surface Velcro layers, and the sandpaper 10 is detachably connected to the main grinding plate body 1 and the auxiliary grinding plate body 9 through the hook surface Velcro layers. The above bonding method is the prior art. The sandpaper 10 can be pre-cut into sandpaper of suitable size and with holes (openings 17) opened, without the need for on-site cutting, and multiple sheets can be brought in advance and used directly.

[0049] The connecting portion 3, the contraction portion 5 and the hand-held portion 6 are an integrally formed structure; the above arrangement improves the structural strength and prolongs the service life.

[0050] The outer walls on both sides of the contraction portion 5 are provided with a plurality of anti-skid ridges 30, and the cross section of each anti-skid ridge 30 is semicircular. Through the above arrangement, when in use, the palm of the operator fits against the hand-held portion 6, and the fingers contact the anti-skid ridges 30, thereby effectively improving stability.

[0051] A plurality of transverse reinforcing plates 32 and a plurality of longitudinal reinforcing plates 33 are arranged in the second weight-reducing opening 31, each of the transverse reinforcing plates 32 is located in the contraction portion 5, and each of the longitudinal reinforcing plates 33 is located in the hand-held portion 6. The above arrangement ensures that the structural strength is improved while reducing the weight.

[0052] The connecting member 7 includes a positioning block 35, a positioning groove 36 is provided at the upper end of the hand-held portion 6, the positioning block 35 is detachably arranged in the positioning groove 36, a rotating disk 99 is rotatably arranged at the upper end of the positioning block 35, the upper end of the rotating disk 99 is hingedly connected to the upper end of the extension rod 8, and a threaded connection sleeve 37 is provided at the lower end of the extension rod 8. When the extension rod 8 is not in use, the positioning block 35 and the extension rod 8 can be directly disassembled, and the operator can directly hold the handle 2 for use.

[0053] The positioning member 11 further includes a bottom block 50, the telescopic rod 13 is movably arranged on the bottom block 50, the lower end of the bottom block 50 is connected to the main grinding plate body 1, the upper end of the bottom block 50 is connected to the lower end of the sleeve 51, the return spring 15 and the limit ring 16 are both located in the sleeve 51, the upper end of the sleeve 51 is provided with a top block 52, and the telescopic rod 13 can movably pass through the top block 52. The inner wall of the sleeve 51 is provided with a guide groove 53, and the outer wall of the limit ring 16 is provided with a guide portion 55 used in conjunction with the guide groove 53.

[0054] The optimal working principle of the utility model is as follows:

[0055] Confirm whether to install the auxiliary grinding plate 9 according to the needs, and select different sandpapers 10 according to whether the auxiliary grinding plate 9 is installed. Fig.11 The sandpaper in the figure is in the folded state. Fig.10 The width of the sandpaper is greater than Fig.11 Sandpaper in Fig.10 The sandpaper in the middle is used when installing the auxiliary grinding plate body 9. The fingers squeeze the telescopic rod 13 downward, and the lower end of the telescopic rod 13 extends downward and is lower than the lower end of the main grinding plate body 1. At this time, the opening 17 on one side of the sandpaper is inserted into the telescopic rod 13, and then the telescopic rod 13 on the other side is also squeezed downward, so that the opening 17 on the other side of the sandpaper is inserted into the other telescopic rod 13. Through the above arrangement, the problem of difficulty in aligning the sandpaper with the main grinding plate body during buckling is avoided. When the extension rod 8 is not needed, the palm of the operator fits against the hand-held portion 6, and the fingers contact the anti-slip ridge 30, so that the gripping piece 2 is directly held by both hands for grinding. By holding the gripping piece 2 with both hands, not only the stability is better, but also the efficiency is higher. When the extension rod 8 is needed, it can be directly connected through the positioning block 35, and the length of the extension rod 8 can also be increased through the threaded connection sleeve 37.

[0056] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A grinding structure for building construction, characterized by: It comprises a main grinding plate body (1), a secondary grinding plate body (9) is detachably provided on one side of the main grinding plate body (1), the lower end of the secondary grinding plate body (9) is flush with the lower end of the main grinding plate body (1), and the upper end of the secondary grinding plate body (9) is higher than the upper end of the main grinding plate body (1); sandpaper (10) is connected to the main grinding plate body (1) and the secondary grinding plate body (9) at the same time, and a holding piece (2) is provided at the upper end of the main grinding plate body (1); The holding member (2) comprises a connecting portion (3), the lower end of the connecting portion (3) is connected to the upper end of the main grinding plate (1), the upper end of the connecting portion (3) is connected to the lower end of the contraction portion (5), the upper end of the contraction portion (5) is connected to the lower end of the hand-held portion (6), the width of the hand-held portion (6) is greater than the width of the connecting portion (3), and the width of the connecting portion (3) is greater than the width of the contraction portion (5); A connecting piece (7) is provided at the upper end of the handheld portion (6), and an extension rod (8) is provided on the connecting piece (7); Two positioning members (11) are arranged on the main grinding plate body (1), and the positioning member (11) comprises a telescopic rod (13), and the telescopic rod (13) is movably inserted into the main grinding plate body (1), and a return spring (15) is sleeved on the telescopic rod (13), and the upper end of the main grinding plate body (1) is connected to the lower end of the return spring (15), and the upper end of the return spring (15) is connected to the lower end of a limiting ring (16), and the limiting ring (16) is sleeved on the upper half of the telescopic rod (13), and the sandpaper (10) is provided with two openings (17) for use with the telescopic rods (13).

2. The grinding structure for building construction as claimed in claim 1, characterized in that: A limiting groove (18) is provided on one side of the main grinding plate body (1), and a limiting strip (19) is provided on the auxiliary grinding plate body (9). The main grinding plate body (1) and the auxiliary grinding plate body (9) are limited by the limiting strip (19) and the limiting groove (18), and are detachably connected by screws (20).

3. The grinding structure for building construction as claimed in claim 2, characterized in that: The upper half of the auxiliary grinding plate body (9) is provided with a first weight-reducing opening (21), and the first weight-reducing opening (21) extends along the length direction of the auxiliary grinding plate body (9) and penetrates the auxiliary grinding plate body (9).

4. The grinding structure for building construction as claimed in claim 3, characterized in that: The main grinding plate body (1) and the auxiliary grinding plate body (9) are both provided with a hook-surface Velcro layer, and the sandpaper (10) is detachably connected to the main grinding plate body (1) and the auxiliary grinding plate body (9) via the hook-surface Velcro layer.

5. The grinding structure for building construction as claimed in claim 4, characterized in that: The connecting portion (3), the contracting portion (5) and the hand-held portion (6) are an integrally formed structure; The outer walls on both sides of the contraction portion (5) are provided with a plurality of anti-slip ridges (30), and the cross section of each anti-slip ridge (30) is semicircular.

6. The grinding structure for building construction as claimed in claim 5, characterized in that: The handle (2) is provided with a second weight-reducing opening (31), and the second weight-reducing opening (31) is located at the contraction portion (5) and the hand-holding portion (6) and passes through the contraction portion (5) and the hand-holding portion (6).

7. The grinding structure for building construction as claimed in claim 6, characterized in that: A plurality of transverse reinforcing plates (32) and a plurality of longitudinal reinforcing plates (33) are arranged in the second weight-reducing opening (31); each of the transverse reinforcing plates (32) is located in the contraction portion (5), and each of the longitudinal reinforcing plates (33) is located in the hand-holding portion (6).

8. The grinding structure for building construction as claimed in claim 7, characterized in that: The connecting member (7) comprises a positioning block (35), a positioning groove (36) is provided at the upper end of the hand-held part (6), the positioning block (35) is detachably arranged in the positioning groove (36), a rotating disk (99) is rotatably arranged at the upper end of the positioning block (35), the upper end of the rotating disk (99) is hingedly connected to the upper end of the extension rod (8), and a threaded connection sleeve (37) is provided at the lower end of the extension rod (8).

9. The grinding structure for building construction as claimed in claim 8, characterized in that: The positioning member (11) further comprises a bottom block (50), the telescopic rod (13) is movably inserted into the bottom block (50), the lower end of the bottom block (50) is connected to the main grinding plate body (1), the upper end of the bottom block (50) is connected to the lower end of a sleeve (51), the return spring (15) and the limiting ring (16) are both located in the sleeve (51), the upper end of the sleeve (51) is provided with a top block (52), and the telescopic rod (13) is movably inserted into the top block (52).

10. The grinding structure for building construction as claimed in claim 9, characterized in that: The inner wall of the sleeve (51) is provided with a guide groove (53), and the outer wall of the limiting ring (16) is provided with a guide portion (55) used in conjunction with the guide groove (53).

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