A kind of expansion bolt removal equipment for engineering construction

Abstract

The utility model relates to the field of mechanical tools, and specifically to an expansion bolt removal device for engineering construction, comprising: a sliding stroke rod, a connecting bolt is provided at one end, a fixing cap is provided at the other end, and a knocking sleeve is provided in the middle, which is used to provide a guide stroke for the knocking sleeve; the connecting bolt is used to connect the bolt to be removed; the knocking sleeve slides on the sliding stroke rod and collides with the knocking plate at the end of the sliding stroke rod to provide an impact force; or the knocking sleeve is connected to the fixing cap to fix the knocking sleeve. Through the combined design of the sliding stroke rod, the connecting bolt, the knocking sleeve and the fixing cap, the utility model can apply precise impact force to the expansion bolt, effectively loosen and remove the bolt, and improve the removal efficiency. Compared with traditional cutting or violent removal methods, the equipment can quickly complete the operation without damaging the installation wall, saving time and labor costs.

Description

Technical Field

[0001] The utility model relates to the field of mechanical tools, in particular to a device for removing expansion bolts for engineering construction. Background Art

[0002] With the rapid development of society, various construction projects emerge in an endless stream. In these projects, expansion bolts have become an indispensable common tool due to their quick and convenient installation and fixing characteristics. Whether it is the installation of doors and windows of new buildings, the fixing of construction site fences, or daily decoration construction, expansion bolts can be seen.

[0003] The working principle of an expansion bolt is that when it is driven into a hole in the ground or wall, by tightening the nut on it, the bolt will move outward while the metal sleeve remains stationary. The large head at the bottom of the bolt expands, causing the metal sleeve to fill the entire hole, thus ensuring that the bolt is firmly fixed. However, this characteristic also makes it quite difficult to remove the expansion bolt when it needs to be removed.

[0004] When removing the expansion bolts that fix the fence on the construction site, the construction workers usually only remove the nuts and leave the exposed bolts. These remaining bolts pose a safety hazard to passing vehicles and pedestrians. During the removal process, the construction workers often use the method of cutting with a cutting machine close to the ground. This method is not only difficult to operate, but also has certain risks, because the cutting machine grinding disc is not easy to operate horizontally, which often leads to incomplete cutting.

[0005] It is more difficult to remove the expansion bolts installed in the door and window frames. When new doors and windows need to be replaced, construction workers often use tools such as crowbars to violently remove them, which is not only dangerous but also very easy to damage the installation wall, bringing many inconveniences to the construction.

[0006] At present, there is no expansion bolt removal tool on the market that is both versatile and safe to use to solve the various problems encountered in the above-mentioned removal process. Utility Model Content

[0007] The utility model provides an expansion bolt removal device for engineering construction, which aims to remove collision bolts.

[0008] To achieve the above purpose, the technical solution of the utility model is:

[0009] The utility model provides an expansion bolt removal device for engineering construction, comprising:

[0010] A sliding stroke rod, with a connecting bolt at one end and a fixing cap at the other end, and a knocking sleeve in the middle, for providing a guide stroke for the knocking sleeve;

[0011] The connecting bolt is used to connect the bolt to be removed;

[0012] The knocking sleeve slides on the sliding stroke rod and collides with the knocking plate at the end of the sliding stroke rod to provide impact force; or the knocking sleeve is connected to the fixing cap to fix the knocking sleeve.

[0013] Furthermore, the connecting head at one end of the sliding stroke rod is provided with an external thread, which is matched and connected with the internal thread of the connecting bolt; the other end of the sliding stroke rod is a knocking plate, and the center of the knocking plate is provided with a first internal threaded hole for connecting the fixing cap.

[0014] Furthermore, one end of the connecting bolt is provided with a second internal threaded hole connected to the sliding stroke rod, and the other end is provided with a stepped groove, and the inner wall of each step is provided with a connecting pattern.

[0015] Furthermore, the knocking sleeve includes a knocking part and a hand-held part; a built-in connector is provided inside the knocking part for connecting with a fixing cap; a through hole is provided at the center of the knocking sleeve for cooperating with the sliding rod.

[0016] Furthermore, a protective portion is provided at the lower end of the handheld portion.

[0017] Furthermore, an external connector is arranged at the center of the outer end surface of the fixing cap.

[0018] Furthermore, a third internal threaded hole is provided inside the fixing cap.

[0019] The beneficial effects achieved by the utility model are:

[0020] The utility model is a construction expansion bolt removal device. Through the combined design of a sliding travel rod, a connecting bolt, a striking sleeve and a fixing cap, the utility model can exert precise impact force on the expansion bolt, effectively loosen and remove the bolt, and improve the removal efficiency. Compared with traditional cutting or violent removal methods, the device can quickly complete the operation without damaging the installation wall, saving time and labor costs.

[0021] The utility model is a construction expansion bolt removal device. The stepped groove and internal thread design of the connecting bolt make the utility model applicable to expansion bolts of various specifications and types, thereby improving the application range of the device. Whether it is a fence bolt fixed on the construction site or an expansion bolt in a door and window frame, it can be easily handled to meet the needs of different construction scenes.

[0022] The utility model is a construction expansion bolt removal device, each component is compactly designed, easy to carry and assemble on site. The combined structure of the striking sleeve, the sliding stroke rod and the fixing cap is not only easy to operate, but also easy to transport and store, providing convenience for the construction site.

[0023] The utility model provides an expansion bolt removal device for engineering construction. By controlling the impact force, the utility model can minimize the damage to surrounding walls or structures while removing the expansion bolts, thereby reducing the cost and workload of subsequent repairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0025] Figure 1 A three-dimensional diagram of the expansion bolt removal equipment for construction projects Figure 1 ;

[0026] Figure 2 A three-dimensional diagram of the expansion bolt removal equipment for construction projects Figure 2 ;

[0027] Figure 3 This is an exploded view of an expansion bolt removal device for construction projects;

[0028] Figure 4 A cross-sectional view of a connection bolt of an expansion bolt removal device for engineering construction;

[0029] Figure 5 A three-dimensional image of a sliding travel rod of an expansion bolt removal device for construction projects;

[0030] Figure 6 It is a connection diagram of another embodiment of an expansion bolt removal device for engineering construction;

[0031] Figure 7 This is a partial structural diagram of an expansion bolt removal device for engineering construction;

[0032] In the figure, 1, connecting bolt; 11, first connecting line; 12, second connecting line; 13, third connecting line; 14, second internal threaded hole; 2, sliding stroke rod; 21, connecting head; 22, knocking plate; 23, first internal threaded hole; 3, knocking sleeve; 31, knocking part; 32, hand-held part; 33, protective part; 34, built-in connecting head; 35, through hole; C3, annular groove; 4, fixing cap; 41, external connecting head; 42, third internal threaded hole.

[0033] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0037] like Figures 1 to 7 As shown, the utility model provides an expansion bolt removal device for engineering construction, comprising:

[0038] A sliding stroke rod 2, with a connecting bolt 1 at one end and a fixing cap 4 at the other end, and a knocking sleeve 3 in the middle, for providing a guide stroke for the knocking sleeve 3;

[0039] The sliding stroke rod 2 provides a guide path for the knocking sleeve 3, ensuring that the knocking force is transmitted in a straight line, thereby improving the force transmission efficiency. One end of the sliding stroke rod 2 is connected to the connecting bolt 1 through an external thread, and a knocking plate 22 is fixed to the other end. The middle part allows the knocking sleeve 3 to slide thereon, providing necessary guidance and support for the movement of the knocking sleeve 3.

[0040] One end of the connecting bolt 1 is provided with a second internal threaded hole 14 connected to the sliding stroke rod 2, and the other end is provided with a stepped groove, and the inner wall of each step is provided with connecting lines, which in this embodiment include first connecting lines 11, second connecting lines 12 and third connecting lines 13.

[0041] The connecting bolt 1 is used to connect the bolt to be removed; one end of the connecting bolt 1 is designed with a second internal threaded hole 14, which is used to tightly match the connecting head 21 of the sliding stroke rod 2 to ensure a stable connection. The stepped groove at the other end and the connecting lines on its inner wall are used to match the expansion bolt to be removed to form a firm mechanical bite, ensuring that the bolt can be subjected to sufficient rotational force during the knocking process to achieve loosening and removal.

[0042] The knocking sleeve 3 is provided with a through hole 35 at its center, and slides on the sliding stroke rod 2 to collide with the knocking plate 22 at the end of the sliding stroke rod 2 to provide an impact force; or the knocking sleeve 3 is connected to the fixing cap 4 to fix the knocking sleeve 3;

[0043] It is composed of a striking part 31 and a hand-held part 32. The through hole 35 in the center of the striking sleeve 3 cooperates with the sliding stroke rod 2, allowing it to slide on the rod, and generates an impact force by striking the striking plate 22 of the sliding stroke rod 2, which accurately transmits the force to the connecting bolt 1, and then acts on the expansion bolt to achieve efficient removal. The design of the hand-held part 32 is convenient for the operator to hold, and the protective part 33 at the lower end increases the safety during operation and prevents the knocking reaction force from causing harm to the operator.

[0044] An external connector 41 is provided at the center of the fixing cap 4, which can be connected to the internal thread of the knocking plate 22. On the one hand, it provides support for the positioning and fixation of the knocking sleeve 3; on the other hand, it is connected to the knocking plate 22 through its internal internal thread to form the terminal structure of the entire device, limit the stroke of the knocking sleeve 3, and ensure the controllability and safety of the knocking action.

[0045] The connector 21 at one end of the travel rod is provided with an external thread, which is matched and connected with the internal thread of the connecting bolt 1; the other end of the travel rod is fixedly provided as a knocking plate 22, and the knocking sleeve 3 slides and collides with the knocking plate 22; the central opening of the knocking plate 22 is provided with a second internal thread hole 14, and the center of the outer end surface of the fixing cap 4 is provided with an external connector 41, which is matched and connected with the internal thread. The other end of the fixing cap 4 has an opening, and the opening has a third internal thread hole 42, which is used to connect with the built-in connector 34 of the knocking sleeve 3.

[0046] In another embodiment, if Figure 6As shown, for the expansion bolts nailed in the vertical direction and at the place with harder materials, it is difficult to operate by hand to knock upwards. The fixing cap 4 is used to fix the knocking sleeve 3. A built-in connector 34 is provided inside the knocking part 31, which can be connected to the fixing cap 4. Unscrew the fixing cap 4 from the knocking plate 22, slide the knocking sleeve 3 to the side of the knocking plate 22, make the built-in connector 34 contact the end face of the knocking plate 22, and then turn the fixing cap 4 to wrap the knocking plate 22 and thread it with the built-in connector 34. At this time, the knocking sleeve is firmly fixed on the sliding stroke rod 2. At this time, connect the connecting bolt 1 to the exposed part of the bolt body of the expansion bolt that needs to be removed. After the connection is completed, knock the knocking cap with a hammer until the expansion bolt that needs to be removed is brought out as a whole.

[0047] A protective portion 33 is also provided at the lower end of the hand-held portion 32, which further enhances safety and reduces the risk of accidental injury to the hand during operation.

[0048] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A construction expansion bolt removal device, characterized in that: include: A sliding stroke rod (2) is provided with a connecting bolt (1) at one end, a fixing cap (4) at the other end, and a knocking sleeve (3) in the middle, which is used to provide a guiding stroke for the knocking sleeve (3); The connecting bolt (1) is used to connect the bolt to be removed; The knocking sleeve (3) slides on the sliding stroke rod (2) and collides with the knocking plate (22) at the end of the sliding stroke rod (2) to provide an impact force; or the knocking sleeve (3) is connected to the fixing cap (4) to fix the knocking sleeve (3).

2. The expansion bolt removal equipment for engineering construction according to claim 1, characterized in that: The connecting head (21) at one end of the sliding stroke rod (2) is provided with an external thread, which is matched and connected with the internal thread of the connecting bolt (1); the other end of the sliding stroke rod (2) is a knocking plate (22), and the center of the knocking plate (22) is provided with a first internal thread for connecting with the fixing cap (4).

3. The expansion bolt removal equipment for engineering construction according to claim 1, characterized in that: One end of the connecting bolt (1) is provided with a second internal threaded hole (14) connected to the sliding stroke rod (2), and the other end is provided with a stepped groove, and the inner wall of each step is provided with a connecting pattern.

4. The expansion bolt removal equipment for engineering construction according to claim 1, characterized in that: The knocking sleeve (3) comprises a knocking part (31) and a hand-held part (32); a built-in connector (34) is arranged inside the knocking part (31) for connecting with a fixing cap (4); a through hole (35) is provided at the center of the knocking sleeve (3) for cooperating with a sliding rod.

5. The expansion bolt removal equipment for engineering construction according to claim 4, characterized in that: A protective portion (33) is also provided at the lower end of the hand-held portion (32).

6. The expansion bolt removal equipment for engineering construction according to claim 1, characterized in that: An external connector (41) is arranged at the centre of the outer end surface of the fixing cap (4).

7. The expansion bolt removal equipment for engineering construction according to claim 1, characterized in that: A third internal threaded hole (42) is provided inside the fixing cap (4).

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