Narrow-slit bolt mounting device for rail transit air conditioner

Abstract

The utility model discloses a narrow-slit bolt installation device for a rail transit air conditioner, which comprises a holding frame, a screw rod and a screw rod, the holding frame comprises a holding handle part and a limiting part connected to one end of the holding handle part, a limiting hole is formed in the holding handle part, and an opening is formed in the limiting part; the adjusting part comprises an adjusting rod and a clamping head, the adjusting rod penetrates through the limiting hole in a sliding mode and is connected with the clamping head, and a clamping groove is formed in the clamping head and used for being connected with the head of the bolt in a sleeved mode and enabling a screw rod of the bolt to stretch out of the bottom of the limiting part. A holding frame and an adjusting piece are arranged, then the head of a bolt is clamped in a clamping groove of a corresponding clamping head, then an adjusting rod is driven to clamp the bolt between the clamping head and a limiting part, a stud extends out of the bottom of the clamping head, finally, the adjusting rod is manually rotated, and the adjusting rod and the limiting part are matched for clamping; according to the bolt pre-tightening device, a bolt can be conveniently screwed in a specified screw hole in a space with a narrow space, the flexibility is high, and the situation that when the bolt is pre-tightened, the bolt falls into a gap, and clamping is difficult is avoided. The assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit air conditioners, in particular to a narrow-slit bolt installation device for rail transit air conditioners. Background Art

[0002] During the manufacturing and maintenance of rail transit air conditioners, it is often necessary to install and fix bolts in deep and narrow slits. In this case, it is impossible for a human hand to hold the bolt directly and insert it into the installation hole. At the same time, since the bolts used in rail transit air conditioners are all stainless steel bolts and have no magnetism, it is also impossible to use magnets or other auxiliary means to adsorb and install them.

[0003] When the bolt needs to be installed deep into the narrow slit, it is difficult to clamp and the bolt may fall midway. After the bolt falls, it is not easy to take out, which not only affects the assembly efficiency but also poses a risk of foreign objects remaining in the equipment.

[0004] Therefore, there is still a need for a narrow-slit bolt installation device for rail transit air conditioners. Summary of the Utility Model

[0005] The utility model provides a narrow-slit bolt installation device for rail transit air conditioners to solve the above problems.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] A narrow-slit bolt installation device for rail transit air conditioners, comprising:

[0008] A holding frame, the holding frame includes a handle portion and a limiting portion connected to one end of the handle portion, a limiting hole is formed on the handle portion, and an opening is provided on the limiting portion;

[0009] An adjusting member, the adjusting member includes an adjusting rod and a chuck, the adjusting rod slides through the limiting hole and is connected to the chuck, and a clamping groove is formed on the chuck for sleeving the head of the bolt, and clamping the bolt in cooperation with the limiting portion to be pre-tightened at a preset position.

[0010] In one embodiment, the holding frame further includes an elastic member, and two ends of the elastic member are respectively elastically abutted against the holding frame and the chuck for elastically driving the chuck to move towards the limiting portion.

[0011] In one embodiment, the elastic member is a spring, the spring is sleeved on the circumferential side of the rod body of the adjusting rod, one end is elastically abutted against the handle portion, and the other end is elastically abutted against the chuck.

[0012] In one embodiment, the holding frame includes at least two positioning plates, a limiting hole is formed on each positioning plate, and the two limiting holes are coaxially arranged.

[0013] In one embodiment, the limiting portion is connected to the handle through an extension portion.

[0014] In one embodiment, the shape of the card slot matches the shape of the head of the bolt.

[0015] In one embodiment, the chuck and the adjusting rod are detachably connected.

[0016] In one embodiment, the chuck and the adjusting rod are threadedly connected or snap-connected.

[0017] Compared with the prior art, the beneficial effects of the present utility model at least include:

[0018] By providing a holding frame and an adjusting member, manually pull the adjusting rod out a certain distance along the handle portion, then engage the head of the bolt into the card slot of the chuck, and then drive the adjusting rod to clamp the bolt between the chuck and the limiting portion, so that the stud extends from the bottom of the chuck. Finally, manually rotate the adjusting rod, and the adjusting rod and the limiting portion cooperate to clamp, which is convenient for screwing the bolt into the specified screw hole in a narrow space, with high flexibility, and avoids the situation that the bolt falls into the gap and is difficult to clamp when pre-tightening the bolt. The assembly efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the assembled state of the installation device according to an embodiment of the present utility model;

[0020] Figure 2 is an exploded view of the structure of the installation device according to an embodiment of the present utility model;

[0021] Figure 3 is a schematic diagram of the structure of the installation device for screwing the bolt according to an embodiment of the present utility model.

[0022] In the figure: 1, holding frame; 11, handle portion; 12, limiting portion; 13, limiting hole; 2, adjusting member; 21, adjusting rod; 22, chuck; 23, card slot; 3, elastic member; 4, positioning plate; 5, extension portion. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Now, example embodiments will be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present utility model will be more complete and comprehensive, and the concept of the example embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repeated description will be omitted.

[0024] The words describing positions and directions in the present utility model are all illustrated by way of the attached drawings, but can also be changed as needed, and all such changes are included within the protection scope of the present utility model.

[0025] Referring to Figures 1-3 , the present utility model provides a narrow-gap bolt installation device for rail transit air conditioners, comprising: a holding frame 1 and an adjusting member 2. The holding frame 1 is, for example, a handle formed by bending sheet metal. One end of the adjusting member 2 is located at the top of the holding frame 1, the rod body part is slidably connected to the holding frame 1, and the other end is connected to a chuck 22.

[0026] The holding frame 1 includes a handle portion 11 and a limiting portion 12 connected to one end of the handle portion 11. A limiting hole 13 is formed in the handle portion 11, and an opening is provided in the limiting portion 12.

[0027] The adjusting member 2 includes an adjusting rod 21 and a chuck 22. The adjusting rod 21 slidably passes through the limiting hole 13 and is connected to the chuck 22. A clamping groove 23 is formed on the chuck 22 for sleeving the head of the bolt and enabling the screw rod of the bolt to extend out from the bottom of the limiting portion 12. One side of the adjusting rod 21 located above the handle is a T-shaped handle. During use, first pull the T-shaped handle to drive the chuck 22 to move a certain distance and separate from the limiting portion 12, then place the head of the bolt in the groove below the chuck 22, and then push the T-shaped handle. The chuck 22 and the limiting portion 12 cooperate to clamp and fix the bolt from both sides respectively. During operation, hold the end of the adjusting rod 21, lock the head of the bolt in the above-mentioned manner, then extend the bolt into a space with a relatively narrow spacing, screw the bolt into the screw hole to complete the pre-tightening of the bolt, complete the preliminary positioning, and then replace it with another screwing wrench to screw and tighten. There is no need to pre-tighten the bolt in a narrow-spacing gap through complex equipment or other cumbersome steps, which simplifies the pre-tightening and positioning of the bolt in a narrow spacing, reduces the risk of the bolt falling, and improves the assembly efficiency.

[0028] Preferably, the holding frame 1 further includes an elastic member 3. The two ends of the elastic member 3 are elastically abutted against the holding frame 1 and the chuck 22 respectively, for elastically driving the chuck 22 to move towards the limiting portion 12. The two ends of the elastic member 3 respectively push the holding frame 1 and the chuck 22 by elastic abutment, and drive the T-shaped handle to move axially through the chuck 22. After separating the chuck 22 from the limiting portion 12, the elastic member 3 provides an elastic force to push the chuck 22 towards the limiting portion 12, so that the bolt between the bottom of the chuck 22 and the limiting portion 12 is clamped, avoiding falling in a narrow gap during carrying and moving, and improving the stability.

[0029] Preferably, the elastic member 3 is a spring, which is sleeved on the circumferential side of the rod body of the adjusting rod 21. One end elastically abuts against the handle portion 11, and the other end elastically abuts against the chuck 22. The spring is sleeved on the outside of the adjusting rod 21. In the natural state during connection, the two ends of the spring elastically abut against the chuck 22 and the handle portion 11 respectively. When the adjusting rod 21 is pulled, the spring is compressed. When the adjusting rod 21 is released, under the action of the spring, the chuck 22 elastically abuts against the limiting portion 12, elastically locking and clamping the bolt to prevent it from falling during the process of moving the bolt.

[0030] Preferably, the holding frame 1 includes at least two positioning plates 4. A limiting hole 13 is formed on each positioning plate 4, and the two limiting holes 13 are coaxially arranged. The two coaxially arranged limiting holes 13 can limit the rod body of the adjusting rod 21, enabling the adjusting rod 21 to only move stably along the axis and preventing the position from shifting when the chuck 22 fixes the bolt.

[0031] Preferably, the limiting portion 12 is connected to the handle through an extension portion 5. The extension portion 5 is a material extending and connected to the handle, and during manufacturing, it can be formed by bending sheet metal. Through the extension of the extension portion, it is convenient to extend the bolt into a position with a narrow spacing and a deep depth for fixing.

[0032] Preferably, the shape of the card slot 23 matches the shape of the head of the bolt. When screwing, by screwing the adjusting rod 21, the chuck 22 is driven to rotate. The bottom of the chuck 22 drives the bolt to be screwed to a specified position through the cooperation of the card slot 23 and the bolt.

[0033] Preferably, the chuck 22 and the adjusting rod 21 are detachably connected, which is convenient for replacing the chuck 22 with different ones according to different bolts.

[0034] Preferably, the chuck 22 and the adjusting rod 21 are threadedly connected or snap-connected.

[0035] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Without departing from the principles and purposes of the present invention, those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention, and all these changes should fall within the protection scope of the claims of the present invention.

Claims

1. A narrow-slit bolt installation device for rail transit air conditioners, characterized in that, Comprising: A holding frame, the holding frame includes a handle portion and a limiting portion connected to one end of the handle portion, a limiting hole is formed on the handle portion, and an opening is provided on the limiting portion; An adjusting member, the adjusting member includes an adjusting rod and a chuck, the adjusting rod slides through the limiting hole and is connected to the chuck, and a clamping groove is formed on the chuck for sleeving the head of the bolt and making the screw rod of the bolt extend from the bottom of the limiting portion.

2. The narrow-slit bolt installation device for rail transit air conditioners according to claim 1, wherein The holding frame further includes an elastic member, and two ends of the elastic member are respectively elastically abutted against the holding frame and the chuck for elastically driving the chuck to move towards the limiting portion.

3. The narrow-slit bolt installation device for rail transit air conditioners according to claim 2, characterized in that The elastic member is a spring, the spring is sleeved on the circumferential side of the rod body of the adjusting rod, one end is elastically abutted against the handle portion, and the other end is elastically abutted against the chuck.

4. The narrow-slit bolt installation device for rail transit air conditioners according to claim 1, characterized in that The holding frame includes at least two positioning plates, the limiting holes are formed on the positioning plates, and the two limiting holes are coaxially arranged.

5. The narrow-slit bolt installation device for rail transit air conditioners according to claim 3, characterized in that, The limiting portion is connected to the handle through an extension portion.

6. The narrow-slit bolt installation device for rail transit air conditioners according to claim 1, characterized in that, The shape of the clamping groove matches the shape of the head of the bolt.

7. The narrow-slit bolt installation device for rail transit air conditioners according to claim 1, characterized in that, The chuck and the adjusting rod are detachably connected.

8. The narrow slit bolt installation device for rail transit air conditioners according to claim 7, wherein, The chuck and the adjusting rod are threadedly connected or clamped.

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