Wrench for narrow-opening installation operation

Abstract

The utility model belongs to the technical field of wrenches, and particularly relates to a wrench for narrow-mouth installation operation, which comprises a handle, a handle rod and a probing rod, the handle rod penetrates through the handle, one end of the handle rod extends out of the handle and is detachably and fixedly connected with one end of the probing rod, and the other end of the probing rod is detachably and fixedly connected with a nut end. Corresponding nut ends can be conveniently replaced according to the type of a nut to be installed, disassembly and assembly are convenient, the angle between the probing rod and the handle rod can be adjusted according to the position of a narrow-opening side wall hole, and the operation requirements of a common wrench and a narrow-opening installation nut where the hand cannot stretch in can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of wrenches, and in particular relates to a wrench for narrow-mouth installation operations. Background Art

[0002] A wrench is a commonly used installation and removal tool. It is a hand tool used to turn bolts, screws, nuts, and other hardware that use the principle of leverage to tighten the openings or holes in the threads that hold the bolts or nuts. A wrench typically has an opening or hole at one or both ends of the handle to hold the bolt or nut. When used, applying force to the handle in the direction of thread rotation turns the bolt or nut.

[0003] However, when installing bolts and nuts in narrow sidewall holes, current universal wrenches cannot be used because the wrench and the operator's hands cannot pass through the narrow opening, making it impossible to clamp and install the nut inside the narrow sidewall hole.

[0004] Based on this, it is urgent to develop a wrench that can be used for installing bolts and nuts at the narrow side wall. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a wrench for narrow-mouth installation operations in view of the deficiencies in the prior art, which can realize narrow-mouth installation nut operations that cannot be reached by ordinary wrenches or hands.

[0006] This solution is achieved through the following technical measures: a wrench for narrow-mouth installation operations, including a handle, a handle rod and a probe rod, the handle rod passes through the handle, one end of the handle rod extends out of the handle and is detachably fixedly connected to one end of the probe rod, and the other end of the probe rod is detachably fixedly connected to a nut end.

[0007] Preferably, the end of the handle rod extending out of the handle is provided with a bolt mounting through hole and a mounting groove concentric with the bolt mounting through hole, and a plurality of fixing bosses are fixedly connected to the side surface of the handle rod around the mounting groove.

[0008] Preferably, a threaded hole is provided at the end of the probe rod, and a circular boss concentric with the threaded hole is fixedly connected to the side of the probe rod, the circular boss is plugged into the installation groove, and a plurality of fixing grooves that are plugged into the fixing boss are provided on the side of the probe rod around the circular boss.

[0009] Preferably, the inner side surface of the annular boss is provided with an internal thread, and the opposite ends of the handle rod and the probe rod are detachably fixedly connected by bolts installed in the bolt installation through hole, the threaded hole and the annular boss.

[0010] Preferably, the opposite ends of the handle rod and the probe rod are respectively provided with mutually cooperating limit mounting shoulders, and the bolt mounting through hole, mounting groove, fixing boss, threaded hole, annular boss and fixing groove are all arranged on the corresponding limit mounting shoulders.

[0011] Preferably, an insertion slot is provided at the other end of the probe rod, an insertion end is fixedly connected to the outer side of the nut end, and bolt holes are respectively provided on both sides of the insertion slot in the insertion end and the probe rod, and the probe rod and the insertion end are detachably fixedly connected by bolts installed in the bolt holes.

[0012] Preferably, the handle is a hollow structure, with one end of the handle being an open structure and the other end being a hollow truncated cone structure.

[0013] Preferably, one end of the handle rod is threadedly connected to a sealing end cover that cooperates with the open structure of the handle, and one end of the handle rod close to its limiting mounting shoulder is provided with a limiting shoulder that cooperates with the small end of the hollow frustum-shaped structure.

[0014] The beneficial effects of the present invention are as follows: the present invention facilitates replacement of the corresponding nut end according to the type of nut to be installed, facilitates assembly and disassembly, and allows adjustment of the angle between the probe rod and the handle rod according to the position of the narrow sidewall hole, thus meeting the needs of installing nuts with ordinary wrenches and in narrow openings where the hand cannot reach. It can be seen that the present invention has substantial features and improvements compared to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of a specific embodiment of the present utility model.

[0016] Figure 2 It is a schematic diagram of the decomposition structure of a specific implementation method of the utility model.

[0017] Figure 3 Schematic diagram of the structure of nut ends of different models.

[0018] Figure 4 Schematic diagram of the exploded structure of the sealing end cover and the handle rod.

[0019] Figure 5 Schematic diagram of the exploded structure of the nut end and the probe rod.

[0020] Figure 6 for Figure 2 Enlarged view of point A.

[0021] Figure 7 Schematic diagram of different angles that can be formed between the handle rod and the probe rod.

[0022] Figure 8This is a schematic diagram of the usage state structure of a specific embodiment of the utility model Figure 1 .

[0023] Figure 9 This is a schematic diagram of the usage state structure of a specific embodiment of the utility model Figure 2 .

[0024] Figure 10 This is a schematic diagram of the usage state structure of a specific embodiment of the utility model Figure 3 .

[0025] In the figure, 1-handle handle, 2-handle rod, 3-insertion rod, 4-nut end, 5-sealing end cover, 6-insertion end, 7-bolt, 8-limiting shoulder, 9-limiting mounting shoulder, 10-fixing boss, 11-bolt mounting through hole, 12-fixing groove, 13-circular boss, 14-insertion groove, 15-bolt hole, 16-mounting groove, 17-narrow mouth, 18-narrow mouth side wall hole, 19-nut, 20-threaded hole. DETAILED DESCRIPTION

[0026] In order to clearly illustrate the technical features of this solution, the solution is described below through specific implementation methods and in conjunction with the accompanying drawings.

[0027] A wrench for narrow-mouth installation operations includes a handle 1, a handle rod 2, and a probe rod 3. The handle rod 2 extends through the handle 1, with one end of the handle rod 2 extending out of the handle 1 and removably fixedly connected to one end of the probe rod 3. The other end of the probe rod 3 is removably fixedly connected to a nut end 4. A nut 19 to be installed is placed within the nut end 4, and the probe rod 3 extends into the narrow mouth 17. The angle between the probe rod 3 and the handle rod 2 can be adjusted according to specific installation requirements. The handle 1 serves as a grip during installation operations.

[0028] The handle 1 is a hollow structure, with one end being open and the other end being a hollow truncated cone. A sealing end cap 5 is threadedly connected to one end of the handle rod 2, which cooperates with the open structure of the handle 1. A stop shoulder 8 is formed on the end of the handle rod 2, near its stop mounting shoulder 9, which cooperates with the small end of the hollow truncated cone. During installation, the handle rod 2 is passed through the handle 1 until the stop shoulder 8 engages with the small end of the hollow truncated cone. The sealing end cap 5 is then threadedly connected to the handle rod 2 to secure the handle rod 2.

[0029] The end of the handle bar 2 extending from the handle 1 is provided with a bolt mounting hole 11 and a mounting groove 16 concentric with the bolt mounting hole 11 , and a plurality of fixing bosses 10 are fixedly connected to the side surface of the handle bar 2 around the mounting groove 16 .

[0030] The end of the probe rod 3 is provided with a threaded hole 20, and a circular boss 13 concentric with the threaded hole 20 is fixedly connected to the side of the probe rod 3. The circular boss 13 engages with the mounting groove 16. The side of the probe rod 3 is provided with a plurality of fixing grooves 12 around the circular boss 13, which engage with the fixing boss 10. The inner side of the circular boss 13 is provided with an internal thread. The opposing ends of the handle rod 2 and the probe rod 3 are detachably fixedly connected by bolts 7 installed in the bolt mounting through-hole 11, the threaded hole 20, and the circular boss 13.

[0031] After the angle between the probe rod 3 and the handle rod 2 is adjusted, the annular boss 13 is inserted into the mounting groove 16, and the fixing boss 10 is inserted into the corresponding fixing groove 12, and then the bolt 7 is tightened.

[0032] The opposite ends of the handle rod 2 and the probe rod 3 are respectively provided with mutually cooperating limit mounting shoulders 9, and the bolt mounting through hole 11, mounting groove 16, fixing boss 10, threaded hole 20, annular boss 13 and fixing groove 12 are all arranged on the corresponding limit mounting shoulders 9. The limit mounting shoulders 9 can limit the connection between the handle rod 2 and the probe rod 3, which is beneficial to improve the connection stability between the two.

[0033] The other end of the probe rod 3 is provided with an insertion slot 14. The outer side of the nut end 4 is fixedly connected to the insertion end 6. Bolt holes 15 are respectively provided on both sides of the insertion end 6 and the probe rod 3 on both sides of the insertion slot 14. The probe rod 3 and the insertion end 6 are detachably fixedly connected by bolts 7 installed in the bolt holes 15. The nut end 4 is available in five types: M2, M3, M4, M5, and M6. The corresponding nut end 4 can be easily replaced according to the model of the nut 19 to be installed, making disassembly and assembly convenient.

[0034] To install nuts and bolts in the narrow sidewall hole 18, first select the appropriate nut head 4 based on the size of the nut 19 to be installed and install it on the end of the probe rod 3. Then, adjust the angle between the probe rod 3 and the handle rod 2 according to the position of the narrow sidewall hole 18. After adjustment, insert the nut 19 into the nut head 4 and extend the probe rod 3 into the narrow opening 17 to the desired installation position, aligning the nut 19 with the narrow sidewall hole 18. Finally, install the bolt in the narrow sidewall hole 18. Once installation is complete, remove the wrench.

[0035] The technical features not described in this utility model can be realized by existing technologies and will not be described in detail here. This utility model is not limited to the above-mentioned specific embodiments. Changes, modifications, additions or substitutions made by ordinary technicians in this field within the scope of the essence of this utility model should also fall within the scope of protection of this utility model.

Claims

1. A wrench for narrow-mouth installation work, characterized by: It includes a handle, a handle rod and a probe rod. The handle rod passes through the handle, one end of the handle rod extends out of the handle and is detachably fixedly connected to one end of the probe rod, and the other end of the probe rod is detachably fixedly connected to a nut end.

2. The narrow-mouth installation wrench according to claim 1, characterized in that: One end of the handle bar extending out of the handle is provided with a bolt mounting through hole and a mounting groove concentric with the bolt mounting through hole, and a plurality of fixing bosses are fixedly connected to the side surface of the handle bar around the mounting groove.

3. The narrow-mouth installation wrench according to claim 2, characterized in that: A threaded hole is provided at the end of the probe rod, and a circular boss concentric with the threaded hole is fixedly connected to the side of the probe rod. The circular boss is plugged into the installation groove, and a plurality of fixing grooves that are plugged into the fixing boss are provided on the side of the probe rod around the circular boss.

4. The narrow-mouth installation wrench according to claim 3, characterized in that: An internal thread is provided on the inner side surface of the annular boss, and the opposite ends of the handle rod and the probe rod are detachably fixedly connected by bolts installed in the bolt installation through hole, the threaded hole and the annular boss.

5. The narrow-mouth installation wrench according to claim 4, characterized in that: The opposite ends of the handle rod and the probe rod are respectively provided with mutually cooperating limit mounting shoulders, and the bolt mounting through hole, mounting groove, fixing boss, threaded hole, annular boss and fixing groove are all arranged on the corresponding limit mounting shoulders.

6. The narrow-mouth installation wrench according to claim 5, characterized in that: The other end of the probe rod is provided with an insertion groove, the outer side of the nut end is fixedly connected with an insertion end, and bolt holes are respectively provided on both sides of the insertion groove in the insertion end and the probe rod. The probe rod and the insertion end are detachably fixedly connected by bolts installed in the bolt holes.

7. The narrow-mouth installation wrench according to claim 6, characterized in that: The handle is a hollow structure, one end of the handle is an open structure, and the other end is a hollow truncated cone structure.

8. The narrow-mouth installation wrench according to claim 7, characterized in that: One end of the handle rod is threadedly connected to a sealing end cover that matches the open structure of the handle handle, and one end of the handle rod close to its limiting installation shoulder is provided with a limiting shoulder that matches the small end of the hollow frustum structure.

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