Adjustable wrench convenient to carry

Abstract

The utility model discloses an adjustable wrench convenient to carry, which belongs to the technical field of wrenches, and comprises an outer sleeve rod, a rectangular cavity is arranged in the outer sleeve rod, a hollow rectangular connecting rod is embedded in the rectangular cavity, one end of the hollow rectangular connecting rod is fixedly connected with an inner hexagonal sleeve, and the other end of the hollow rectangular connecting rod is fixedly connected with an outer hexagonal sleeve. The other end of the hollow rectangular connecting rod is fixedly connected with an internal thread ring, one end of the outer sleeve rod is fixedly connected with a connecting ring, the inner wall of the connecting ring is fixedly connected with a bearing, the inner wall of the bearing is fixedly connected with a threaded rod, and the threaded rod penetrates through one end of the outer sleeve rod, extends into the rectangular cavity and is embedded with the hollow rectangular connecting rod; threaded connection is formed between the threaded rod and the inner threaded ring, the process that the threaded rod is matched with the inner threaded ring to drive the hollow rectangular connecting rod to conduct telescopic adjustment is irreversible and has self-locking performance, and therefore after telescopic adjustment of the hollow rectangular connecting rod is completed, the hollow rectangular connecting rod can be directly kept stable, and personnel operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of wrenches, and more specifically to an adjustable wrench which is convenient to carry. Background Art

[0002] In a power plant, there are many dynamic and static equipment in operation. These dynamic and static equipment ensure the normal operation of the entire power plant, but these mechanical equipment also need regular maintenance. When maintaining these mechanical equipment, various socket wrenches are needed to assist in maintenance and ensure the normal operation of the work.

[0003] For example, the authorization announcement number CN220331152U discloses a sleeve-type adjustable wrench for power plants. The sleeve-type adjustable wrench includes a fixed sleeve rod, a telescopic rod, a force rod, a sleeve, a limit hole and an adjustment mechanism. The interior of the fixed sleeve rod is hollow, and the telescopic rod is slidably connected inside; the end side of the fixed sleeve rod is a force rod perpendicular to the fixed sleeve rod, the end of the telescopic rod extends to the outside of the fixed sleeve rod, and the end of the telescopic rod is sleeved with a sleeve. The telescopic rod is located in the internal space formed by the fixed sleeve rod and the sleeve. The surface of the telescopic rod is equidistantly provided with limit holes extending inward. The adjustment mechanism adjusts the total length of the sleeve-type adjustable wrench by snapping into different limit holes. The use of the sleeve-type adjustable wrench is more portable, and there is no need to spare multiple wrenches of the same model with different lengths. It can reduce the weight of the tool box and is convenient to carry. However, the wrench has the following disadvantages during use;

[0004] The above-mentioned wrench can be adjusted in length so that personnel do not need to prepare multiple wrenches of the same model with different lengths, which can reduce the weight of the tool box and is convenient to carry. However, when adjusting the length of the wrench, the specific operating steps are loosening the limit - stretching adjustment - limit fixing, which needs to be completed in three steps and the operation is relatively cumbersome. Therefore, the utility model provides an adjustable wrench that is easy to carry. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide an adjustable wrench that is easy to carry, which solves the problem that when adjusting the length of the wrench in the prior art, the specific operating steps are loosening the limit - stretching adjustment - limit fixing, which needs to be completed in three steps and the operation is relatively cumbersome.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A portable adjustable spanner comprises an outer rod, a rectangular cavity is formed inside the outer rod, a hollow rectangular connecting rod is embedded in the rectangular cavity, one end of the hollow rectangular connecting rod is fixedly connected to a hexagon socket, and the other end of the hollow rectangular connecting rod is fixedly connected to an internal threaded ring;

[0010] One end of the outer rod is fixedly connected to a connecting ring, the inner wall of the connecting ring is fixedly connected to a bearing, the inner wall of the bearing is fixedly connected to a threaded rod, the threaded rod passes through one end of the outer rod and extends into the rectangular cavity, and is embedded with the hollow rectangular connecting rod, and a threaded connection is formed between the threaded rod and the inner threaded ring;

[0011] A pair of force arm rods are arranged on the outer circumferential surface of the outer sleeve rod.

[0012] Furthermore, the outer circumferential surface of the outer sleeve rod is fixedly connected to a pair of connecting tubes, the outer circumferential surface of the connecting tubes is provided with a pair of L-shaped grooves, the outer circumferential surface of the force arm rod is fixedly connected to a pair of clamping columns, one end of the force arm rod is embedded in the connecting tubes, and the clamping columns are screwed into the L-shaped grooves.

[0013] Furthermore, an elastic layer is fixedly connected to the inner wall of the connecting tube.

[0014] Furthermore, a flexible protective sleeve is fixedly connected to the outer circumferential surface of the lever arm.

[0015] Furthermore, one end of the threaded rod is fixedly connected to a column, and an outer circumferential surface of the column is fixedly connected to an anti-slip strip.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) In this scheme, when the threaded rod is rotated, since the internal threaded ring is fixed to the hollow rectangular connecting rod, and the hollow rectangular connecting rod is limited by the rectangular cavity, the internal threaded ring will not rotate synchronously with the threaded rod during rotation, but will move horizontally on the threaded rod. During the horizontal movement of the threaded rod, the hollow rectangular connecting rod will move synchronously with it. The hollow rectangular connecting rod can extend outward during the movement, thereby lengthening the overall length of the wrench. Similarly, rotating the threaded rod in the opposite direction can shorten the overall length of the wrench. The process of the threaded rod cooperating with the internal threaded ring to drive the hollow rectangular connecting rod to perform telescopic adjustment is irreversible and self-locking. Therefore, after the telescopic adjustment of the hollow rectangular connecting rod is completed, it can remain stable directly, which is convenient for personnel to operate.

[0019] (2) In this scheme, after one end of the force arm rod is embedded in the inner cavity of the connecting tube, the force arm rod is rotated so that the clamping column on the force arm rod is screwed into the L-shaped clamping groove on the connecting tube. When in use, the force arm rod is not easy to fall off the connecting tube. After the force arm rod is rotated in the opposite direction, the force arm rod can be pulled out of the connecting tube, and the force arm rod and the outer sleeve rod can be placed in parallel as a whole for easy carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the utility model cut as a whole;

[0022] Figure 3 This is a schematic diagram of the structure of the internal thread ring and the hollow rectangular connecting rod of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the utility model for disassembling the lever arm;

[0024] Figure 5 It is a structural schematic diagram of a cross-section of the connecting tube of the utility model.

[0025] Description of the numbers in the figure:

[0026] 1. Outer rod; 11. Rectangular cavity; 12. Connecting tube; 121. L-shaped slot; 122. Elastic layer; 2. Hollow rectangular connecting rod; 3. Hexagon socket; 4. Internal thread ring; 5. Connecting ring; 6. Bearing; 7. Threaded rod; 71. Column; 72. Anti-slip strip; 8. Lever rod; 81. Clamping column; 82. Flexible protective cover. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] Example

[0029] like Figure 1-4 As shown, a portable adjustable wrench includes an outer rod 1, a rectangular cavity 11 is formed inside the outer rod 1, a hollow rectangular connecting rod 2 is embedded in the rectangular cavity 11, one end of the hollow rectangular connecting rod 2 is fixedly connected to a hexagonal sleeve 3, and the other end of the hollow rectangular connecting rod 2 is fixedly connected to an internal threaded ring 4;

[0030] One end of the outer rod 1 is fixedly connected with a connecting ring 5, the inner wall of the connecting ring 5 is fixedly connected with a bearing 6, the inner wall of the bearing 6 is fixedly connected with a threaded rod 7, the threaded rod 7 passes through one end of the outer rod 1 and extends into the rectangular cavity 11, and is embedded with the hollow rectangular connecting rod 2, and a threaded connection is formed between the threaded rod 7 and the inner threaded ring 4;

[0031] A pair of lever arms 8 are provided on the outer circumferential surface of the outer sleeve rod 1 .

[0032] During use, when the threaded rod 7 is rotated, since the internal threaded ring 4 is fixed to the hollow rectangular connecting rod 2, and the hollow rectangular connecting rod 2 is limited by the rectangular cavity 11, during the rotation of the threaded rod 7, the internal threaded ring 4 will not rotate synchronously, but will move horizontally on the threaded rod 7. During the horizontal movement of the threaded rod 7, the hollow rectangular connecting rod 2 will move synchronously, and the hollow rectangular connecting rod 2 can extend outward during the movement, thereby lengthening the overall length of the wrench. Similarly, rotating the threaded rod 7 in the opposite direction can shorten the overall length of the wrench. The process in which the threaded rod 7 cooperates with the internal threaded ring 4 to drive the hollow rectangular connecting rod 2 to perform telescopic adjustment is irreversible and self-locking. Therefore, after the telescopic adjustment of the hollow rectangular connecting rod 2 is completed, it can directly remain stable, which is convenient for personnel to operate.

[0033] like Figure 4-5 As shown, a pair of connecting tubes 12 are fixedly connected to the outer circumference of the outer sleeve rod 1, and a pair of L-shaped grooves 121 are opened on the outer circumference of the connecting tube 12. A pair of clamping columns 81 are fixedly connected to the outer circumference of the lever arm rod 8. One end of the lever arm rod 8 is embedded in the connecting tube 12, and the clamping column 81 is screwed into the L-shaped groove 121.

[0034] When in use, after one end of the force arm rod 8 is embedded in the inner cavity of the connecting tube 12, the force arm rod 8 is rotated so that the clamping column 81 on the force arm rod 8 is screwed into the L-shaped clamping groove 121 on the connecting tube 12. Subsequently, when in use, the force arm rod 8 is not easy to fall off from the connecting tube 12. After rotating the force arm rod 8 in the opposite direction, the force arm rod 8 can be pulled out from the connecting tube 12, and the force arm rod 8 and the outer sleeve rod 1 can be placed in parallel as a whole for easy carrying.

[0035] like Figure 4-5 As shown, the inner wall of the connecting tube 12 is fixedly connected with an elastic layer 122 .

[0036] When in use, after the lever arm 8 is embedded in the inner cavity of the connecting tube 12, the elastic layer 122 will be squeezed first, and then the lever arm 8 can be rotated so that the clamping column 81 is screwed into the L-shaped clamping groove 121. Under the squeezing of the elastic layer 122, the lever arm 8 is less likely to loosen, thereby improving stability.

[0037] like Figure 4-5 As shown, a flexible protective sleeve 82 is fixedly connected to the outer circumferential surface of the lever arm 8 .

[0038] During use, when a person holds the lever arm 8 to operate, he or she specifically holds the flexible protective cover 82 on the lever arm 8 to improve the sense of comfort.

[0039] like Figure 1-2 As shown, one end of the threaded rod 7 is fixedly connected to a column 71 , and the outer circumferential surface of the column 71 is fixedly connected to an anti-slip strip 72 .

[0040] When in use, the column 71 and the anti-slip strip 72 enable a person to replace the rotating threaded rod 7 without the hand slipping during the rotation.

[0041] In summary, the specific working process of the present scheme is as follows: when the threaded rod 7 is rotated, since the internal threaded ring 4 is fixed to the hollow rectangular connecting rod 2, and the hollow rectangular connecting rod 2 is limited by the rectangular cavity 11, during the rotation of the threaded rod 7, the internal threaded ring 4 will not rotate synchronously, but will move horizontally on the threaded rod 7. During the horizontal movement of the threaded rod 7, the hollow rectangular connecting rod 2 will move synchronously with the threaded rod 7. The hollow rectangular connecting rod 2 can extend outward during the movement, thereby lengthening the overall length of the wrench. Similarly, rotating the threaded rod 7 in the opposite direction can shorten the overall length of the wrench. The process in which the threaded rod 7 cooperates with the internal threaded ring 4 to drive the hollow rectangular connecting rod 2 to perform telescopic adjustment is irreversible and self-locking. Therefore, after the telescopic adjustment of the hollow rectangular connecting rod 2 is completed, it can remain stable directly, which is convenient for personnel to operate.

[0042] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A portable adjustable spanner, comprising an outer sleeve rod (1), characterized in that: A rectangular cavity (11) is provided inside the outer sleeve (1), a hollow rectangular connecting rod (2) is embedded in the rectangular cavity (11), one end of the hollow rectangular connecting rod (2) is fixedly connected to a hexagonal sleeve (3), and the other end of the hollow rectangular connecting rod (2) is fixedly connected to an internal threaded ring (4); One end of the outer rod (1) is fixedly connected to a connecting ring (5), the inner wall of the connecting ring (5) is fixedly connected to a bearing (6), the inner wall of the bearing (6) is fixedly connected to a threaded rod (7), the threaded rod (7) passes through one end of the outer rod (1) and extends into the rectangular cavity (11), and is engaged with the hollow rectangular connecting rod (2), and a threaded connection is formed between the threaded rod (7) and the inner threaded ring (4); A pair of force arm rods (8) are provided on the outer circumferential surface of the outer sleeve rod (1).

2. A portable adjustable wrench according to claim 1, characterized in that: A pair of connecting tubes (12) are fixedly connected to the outer circumferential surface of the outer sleeve rod (1), a pair of L-shaped slots (121) are formed on the outer circumferential surface of the connecting tube (12), a pair of clamping columns (81) are fixedly connected to the outer circumferential surface of the lever arm rod (8), one end of the lever arm rod (8) is engaged with the connecting tube (12), and the clamping column (81) is screwed into the L-shaped slot (121).

3. A portable adjustable wrench according to claim 2, characterized in that: An elastic layer (122) is fixedly connected to the inner wall of the connecting tube (12).

4. The portable adjustable wrench according to claim 2, characterized in that: A flexible protective sleeve (82) is fixedly connected to the outer circumferential surface of the force arm rod (8).

5. The portable adjustable wrench according to claim 1, characterized in that: One end of the threaded rod (7) is fixedly connected to a column (71), and the outer circumferential surface of the column (71) is fixedly connected to an anti-slip strip (72).

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