Simple device for bolt installation in narrow space

Abstract

The utility model discloses a simple device for installing a bolt in a narrow space, which relates to the field of maintenance and reconstruction engineering, and comprises a bolt sleeve and a connecting piece, the bolt sleeve comprises an accommodating space with an opening on one side, and at least two radially telescopic elastic pieces are arranged on the inner wall close to the opening. When the bolt is positioned in the accommodating space, the clamping part is clamped with the bolt so as to fix the relative position of the bolt in the accommodating space; the connecting piece is connected with the bolt sleeve and used for adjusting the relative position of the bolt sleeve. The bolt can be clamped in the containing space of the bolt sleeve through the elastic piece located in the bolt sleeve, the problem that the bolt falls into a narrow space before installation or after disassembly can be avoided, the bolt sleeve can stretch into the narrow space to install and disassemble the bolt through the connecting piece, and the bolt is convenient to install and disassemble. The problem that bolts are difficult to install in a narrow space is solved.

Description

Technical Field

[0001] The utility model relates to the field of maintenance and reconstruction engineering, in particular to a simple device for installing bolts in a narrow space. Background Art

[0002] Small and medium-sized plate arches play an important role in strengthening bridges, and are often reinforced with steel corrugated plate arches. The steel corrugated plates are prefabricated in blocks and connected on site with high-strength bolts. The width of each corrugated plate is about 1 to 3 meters, and the high-strength bolts are located at the crest or trough of the steel corrugated plate.

[0003] When tightening bolts, workers usually use ordinary wrenches, which requires workers to be very close to the bolts. In addition, many loose bolts are located in narrow and deep places, and workers cannot reach the bolts with ordinary wrenches, so they cannot tighten the bolts. Especially in the narrow space between the steel corrugated plate and the bottom of the arch ring, it is difficult to install the bolts to a fixed position. During the bolt installation process, the bolts often slip into the grooves of the corrugated steel plate at the arch foot. Utility Model Content

[0004] In view of the defects existing in the prior art, the purpose of the utility model is to provide a simple device for installing bolts in a narrow space, so as to solve the problem of difficulty in installing bolts in a narrow space in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The present application provides a simple device for bolt installation in a narrow space, comprising:

[0007] The bolt sleeve comprises a receiving space with an opening on one side, and at least two radially retractable elastic members are provided on the inner wall near the opening, for clamping the bolt when the bolt is located in the receiving space;

[0008] A connecting piece is connected to the bolt sleeve and is used to adjust the relative position of the bolt sleeve.

[0009] In some optional embodiments, the inner wall of the bolt sleeve is provided with limiting grooves corresponding to the elastic members one by one, and the elastic members include:

[0010] A ball, which is clamped in the limiting groove and protrudes toward the accommodation space outside the limiting groove;

[0011] A spring is arranged in the limiting groove and one end of the spring is fixedly connected to the inner wall of the limiting groove. The other end of the spring abuts against the ball so that the ball can be extended and retracted in and out of the limiting groove.

[0012] In some optional embodiments, the bolt sleeve is a regular hexagon that matches the size of the bolt.

[0013] In some optional embodiments, three of the elastic members are provided, and are spaced apart on three inner walls of the regular hexagon of the bolt sleeve.

[0014] In some optional embodiments, the inner diameter of the bolt sleeve is 1 mm larger than the outer diameter of the bolt.

[0015] In some optional embodiments, all of the elastic members are located in the same plane, and are used to be clamped to the bottom of the bolt when the bolt is located in the accommodating space.

[0016] In some optional embodiments, the above-mentioned connecting member includes:

[0017] A telescopic longitudinal rod, one end of which is connected to the bolt sleeve;

[0018] A telescopic cross bar is connected to the other end of the telescopic longitudinal bar.

[0019] In some optional embodiments, the telescopic longitudinal rod and the telescopic transverse rod are detachably connected via a connecting head.

[0020] In some optional embodiments, the telescopic longitudinal rod and the telescopic cross rod are both threadedly connected to the connecting head.

[0021] In some optional embodiments, the telescopic longitudinal rod is connected to the axis of the closed end of the bolt sleeve.

[0022] Compared with the prior art, the advantages of the utility model are: through the elastic part located in the bolt sleeve, the bolt can be clamped in the accommodating space of the bolt sleeve, which can avoid the problem of the bolt falling into a narrow space before installation or after disassembly; through the connecting part, the bolt sleeve can be extended into a narrow space to install and disassemble the bolt, solving the problem of difficulty in installing bolts in a narrow space. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a schematic diagram of the use of a simple device for bolt installation in a narrow space according to the utility model;

[0025] Figure 2 for Figure 1 Schematic diagram of the cross section of AA;

[0026] Figure 3 for Figure 1 A partial enlarged schematic diagram of B in the figure.

[0027] In the figure: 1. bolt sleeve; 2. connecting piece; 21. telescopic longitudinal rod; 22. telescopic cross rod; 23. connecting head; 3. elastic piece; 31. ball; 32. spring; 4. bolt. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] The following is a further detailed description of an embodiment of a simple device for installing bolts in a narrow space according to the utility model in conjunction with the accompanying drawings.

[0030] like Figure 1 and Figure 2 As shown, the present application provides a simple device for bolt installation in a narrow space, comprising a bolt sleeve 1 and a connector 2. The bolt sleeve 1 is used to be sleeved outside the bolt 4 and clamped with the bolt 4, and the connector 2 is connected to the bolt sleeve 1, so that the bolt sleeve 1 can be extended into the narrow space to loosen or tighten the bolt 4.

[0031] Specifically, the bolt sleeve 1 includes a accommodating space with an opening on one side, and at least two radially retractable elastic members 3 are provided on the inner wall near the above opening, which are used to clamp the above bolt 4 when the bolt 4 is located in the above accommodating space to fix the relative position of the bolt 4 in the accommodating space; the connecting member 2 is connected to the above bolt sleeve 1 and is used to adjust the relative position of the above bolt sleeve 1.

[0032] When in use, the connector 2 is adjusted so that the bolt sleeve 1 can be inserted into the installation position of the bolt 4 in the narrow space. When the bolt 4 needs to be installed, the bolt 4 is first clamped into the accommodating space of the bolt sleeve 1, and then the bolt sleeve 1 is extended into the installation position of the bolt 4 by using the connector 2, and then the bolt sleeve 1 is screwed to install and fix the bolt 4; when the bolt 4 needs to be removed, the bolt sleeve 1 is extended into the installation position of the bolt 4 by using the connector 2, and then the bolt 4 is clamped into the accommodating space of the bolt sleeve 1, and the bolt sleeve 1 is screwed to loosen and remove the bolt 4, and the bolt sleeve 1 is moved out from the installation position of the bolt 4, and the bolt 4 is clamped at the same time to be moved out from the installation position together.

[0033] It can be understood that the elastic member 3 can be radially retracted, so that when the elastic member 3 is retracted to the inner wall of the bolt sleeve 1, the bolt 4 can enter the accommodating space from the opening; when the elastic member 3 extends to the inner wall of the bolt sleeve 1, the bolt 4 is clamped in the accommodating space.

[0034] It can be seen that the bolt 4 can be clamped in the accommodating space of the bolt sleeve 1 by the elastic member 3 located in the bolt sleeve 1, which can prevent the bolt from falling into a narrow space before installation or after removal; the bolt sleeve 1 can be extended into a narrow space to install and remove the bolt 4 by the connecting member 2. Figure 1 As shown in the figure, when the installation position of the bolt 4 is located at the crest or trough of the steel corrugated plate, the installation space is narrow and it is difficult to install or remove the bolt 4 using an ordinary wrench. During the installation or removal process, the bolt 4 falls into the trough groove of the arch foot steel corrugated plate and is difficult to remove.

[0035] In some optional embodiments, such as Figure 3 As shown, the inner wall of the bolt sleeve 1 is provided with limiting grooves corresponding to the elastic member 3 one by one, and the elastic member 3 includes a ball 31 and a spring 32. The ball 31 is clamped in the limiting groove and protrudes to the accommodating space outside the limiting groove; the spring 32 is arranged in the limiting groove and one end is fixedly connected to the inner wall of the limiting groove, and the other end of the spring 32 is abutted against the ball 31, so that the ball 31 can be extended and retracted in and out of the limiting groove.

[0036] It can be understood that the ball 31 is clamped in the limiting groove. When the bolt 4 enters the accommodating space from the opening, the ball 31 is squeezed by the bolt 4, and the spring 32 retracts until the bolt 4 is located in the accommodating space and does not abut against the ball 31. Under the action of the elastic restoring force of the spring 32, the ball 31 protrudes to the accommodating space outside the limiting groove, thereby being clamped with the bolt 4.

[0037] The provision of the ball bearings 31 can reduce the friction between the bolt 4 and the bolt 4 when the bolt 4 enters or leaves the accommodation space.

[0038] It should be noted that when the spring 32 is in a natural state, the ball 31 is clamped in the limiting groove and protrudes into the accommodating space outside the limiting groove. At this time, the range formed by multiple balls 31 protruding into the accommodating space to enclose should be smaller than the outer diameter of the bolt 4.

[0039] In this example, all the elastic members 3 are located in the same plane, and are used to be clamped on the bottom of the bolt 4 when the bolt 4 is located in the accommodating space.

[0040] It can be understood that when the bolt 4 is located in the accommodating space, the elastic member 3 supports the bolt 4 .

[0041] Preferably, the bolt 4 is clamped between the elastic member 3 and the bottom wall of the bolt sleeve 1. The purpose of this arrangement is to prevent the bolt 4 from shaking in the accommodation space and falling out. This arrangement requires that the distance between the elastic member 3 and the bottom wall of the bolt sleeve 1 be adapted to the height of the bolt 4.

[0042] In some optional embodiments, the bolt sleeve 1 is a regular hexagon that matches the size of the bolt 4 .

[0043] It can be understood that configuring the bolt sleeve 1 as a regular hexagon that matches the size of the bolt 4 not only facilitates clamping the bolt 4 in the accommodating space, but also facilitates tightening or loosening the bolt 4.

[0044] Of course, the size and shape of the bolt sleeve 1 can be selected accordingly according to the bolt 4, and is not limited to a regular hexagon. For example, in order to facilitate the bolt sleeve 1 to enter a narrow space, the outer shape of the bolt sleeve 1 can be set to a cylindrical shape, and the internal accommodating space can be set to a polygon that matches the bolt 4.

[0045] In some optional embodiments, three elastic members 3 are provided, which are spaced apart on three inner walls of the regular hexagon of the bolt sleeve 1 .

[0046] It can be understood that the number of elastic members 3 can be set as needed, and the greater the number, the greater the external force required for the bolt 4 to enter or leave the accommodation space. In this example, the elastic members 3 are arranged at intervals and are respectively located at the horizontal center of each inner wall, so that when the elastic members 3 are squeezed by the bolt 4 or used to support and hold the bolt 4, the force on the bolt 4 is more uniform.

[0047] In some optional embodiments, the inner diameter of the bolt sleeve 1 is 1 mm larger than the outer diameter of the bolt 4 .

[0048] It can be understood that the purpose of such a setting is to ensure that when the bolt 4 is clamped in the accommodating space by the elastic member 3, it will be loosely matched with the bolt sleeve 1 to avoid excessive friction when the bolt 4 enters or leaves the accommodating space, which will make it inconvenient to install and remove the bolt 4.

[0049] In some optional embodiments, the connecting member 2 includes a telescopic longitudinal rod 21 and a telescopic cross rod 22 , one end of the telescopic longitudinal rod 21 is connected to the bolt sleeve 1 ; the telescopic cross rod 22 is connected to the other end of the telescopic longitudinal rod 21 .

[0050] By extending or shortening the telescopic longitudinal rod 21 and the telescopic cross rod 22, the depth and length of the bolt installation position can be adjusted accordingly, so that the bolt sleeve 1 can accurately reach the installation position, thereby improving the versatility of the simple device.

[0051] In some optional embodiments, the telescopic longitudinal rod 21 and the telescopic transverse rod 22 are detachably connected via a connector 23 .

[0052] In order to further improve the adaptability of the simple device of the present application, the telescopic longitudinal rod 21 and the telescopic cross rod 22 are detachably connected, so that the corresponding rods can be replaced according to different usage environments.

[0053] In this example, the connector 23 is a right-angle arc connector. In other embodiments, the corresponding connector 23 can be replaced according to different installation positions to change the angle between the telescopic longitudinal rod 21 and the telescopic cross rod 22.

[0054] In some optional embodiments, the telescopic longitudinal rod 21 and the telescopic transverse rod 22 are both threadedly connected to the connecting head 23 .

[0055] It can be understood that the retractable longitudinal rod 21, the retractable cross rod 22 and the connector 23 can be easily replaced by means of threaded connection.

[0056] In some optional embodiments, the telescopic longitudinal rod 21 is connected to the axis of the closed end of the bolt sleeve 1 .

[0057] It can be understood that the telescopic longitudinal rod 21 is connected to the axis of the closed end of the bolt sleeve 1, so as to facilitate the application of force when tightening or loosening the bolt 4. In this example, the telescopic longitudinal rod 21 is fixed to the bolt sleeve 1 by welding.

[0058] Furthermore, the telescopic longitudinal rod 21 coincides with the axis of the bolt sleeve 1 .

[0059] The working principle of the embodiment of the present application is as follows: according to the longitudinal position of the bolt installation position, the length of the telescopic longitudinal rod 21 is adjusted, according to the lateral position of the bolt installation position, the length of the telescopic cross rod 22 is adjusted, and according to the bolt installation position, the corresponding connecting head 23 is selected, and the telescopic longitudinal rod 21, the telescopic cross rod 22 and the connecting head 23 are installed together through threaded matching, so that a set angle is formed between the telescopic longitudinal rod 21 and the telescopic cross rod 22. When it is necessary to install the bolt 4, the bolt 4 is pressed into the accommodating space of the bolt sleeve 1 until the spring 32 contracts and rebounds, so that the ball 31 is clamped at the bottom of the bolt 4, and then the retractable cross bar 22 is held to send the bolt sleeve 1 and the bolt 4 to the installation position, and the bolt sleeve 1 is rotated to install the bolt 4; when it is necessary to remove the bolt 4, the bolt sleeve 1 and the bolt 4 are sent to the installation position, and the bolt 4 is pressed into the accommodating space of the bolt sleeve 1 until the spring 32 contracts and rebounds, so that the ball 31 is clamped at the bottom of the bolt 4, and the bolt sleeve 1 is rotated to loosen and remove the bolt 4, and then the bolt sleeve 1 is lifted to move the bolt sleeve and the bolt 4 out of the installation position together.

[0060] The utility model discloses a simple device for installing bolts in a narrow space. The elastic member 3 in the bolt sleeve 1 enables the bolt 4 to be clamped in the accommodating space of the bolt sleeve 1, so that the problem of the bolt falling into the narrow space before installation or after removal can be avoided. The connecting member 2 enables the bolt sleeve 1 to be extended into the narrow space to install and remove the bolt 4. The ball 31 and the spring 32 are provided to cooperate with each other, so that the friction with the bolt 4 is reduced when the bolt 4 enters or leaves the accommodating space, and the bolt 4 can be clamped by the ball 31 when it is located in the accommodating space. The bolt sleeve 1 is configured as a regular hexagon that matches the size of the bolt 4, which not only facilitates the installation of the bolt, but also makes it easier to install the bolt. 4 is clamped in the accommodating space, and it is also convenient to tighten or loosen the bolt 4; the elastic members 3 are arranged at intervals and are respectively located at the horizontal center of each inner wall, so that when the elastic members 3 are squeezed by the bolt 4 or used to support and clamp the bolt 4, the force on the bolt 4 is more uniform; by extending or shortening the telescopic longitudinal rod 21 and the telescopic cross bar 22, the depth and length of the bolt installation position can be adjusted accordingly, so that the bolt sleeve 1 can accurately reach the installation position, thereby improving the versatility of the simple device; by detachably connecting the telescopic longitudinal rod 21, the telescopic cross bar 22 and the connecting head 23, the angle between the telescopic longitudinal rod 21 and the telescopic cross bar 22 can be changed.

[0061] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0062] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0063] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A simple device for bolt installation in a narrow space, characterized in that: include: A bolt sleeve (1) comprises a receiving space with an opening on one side, and at least two radially retractable elastic members (3) are provided on the inner wall close to the opening, for clamping the bolt (4) when the bolt (4) is located in the receiving space; A connecting piece (2) is connected to the bolt sleeve (1) and is used to adjust the relative position of the bolt sleeve (1).

2. The simple device according to claim 1, characterized in that: The inner wall of the bolt sleeve (1) is provided with limiting grooves corresponding to the elastic members (3) one by one, and the elastic members (3) include: A ball (31) is clamped in the limiting groove and protrudes toward the accommodation space outside the limiting groove; A spring (32) is arranged in the limiting groove and one end of which is fixedly connected to the inner wall of the limiting groove. The other end of the spring (32) abuts against the ball (31) so that the ball (31) can be extended and retracted in and out of the limiting groove.

3. The simple device according to claim 1, characterized in that: The bolt sleeve (1) is a regular hexagon that matches the size of the bolt (4).

4. The simple device according to claim 3, characterized in that: The elastic members (3) are provided in three numbers and are respectively arranged at intervals on the three inner walls of the regular hexagon of the bolt sleeve (1).

5. The simple device according to claim 3, characterized in that: The inner diameter of the bolt sleeve (1) is 1 mm larger than the outer diameter of the bolt (4).

6. The simple device according to claim 1, characterized in that: All of the elastic members (3) are located in the same plane and are used to be clamped to the bottom of the bolt (4) when the bolt (4) is located in the accommodating space.

7. The simple device according to claim 1, characterized in that: The connecting member (2) comprises: A telescopic longitudinal rod (21), one end of which is connected to the bolt sleeve (1); A telescopic cross bar (22) is connected to the other end of the telescopic longitudinal bar (21).

8. The simple device according to claim 7, characterized in that: The telescopic longitudinal rod (21) and the telescopic cross rod (22) are detachably connected via a connector (23).

9. The simple device according to claim 8, characterized in that: The telescopic longitudinal rod (21) and the telescopic cross rod (22) are both threadedly connected to the connecting head (23).

10. The simple device according to claim 7, characterized in that: The telescopic longitudinal rod (21) is connected to the axis center of the closed end of the bolt sleeve (1).

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