Insulating ratchet socket wrench

Abstract

The utility model discloses an insulating ratchet socket spanner which comprises a shell and a rotary drum, the rotary drum is rotatably arranged in the shell, an upper lock sleeve and a lower lock sleeve are respectively sleeved on the upper end portion and the lower end portion of the rotary drum, a grip is arranged on one side of the outer portion of the shell, an insulating grip sleeve is sleeved on the outer side of the grip, and the insulating grip sleeve is sleeved on the outer side of the shell. A direction conversion pawl is arranged in the middle of the shell; clamping grooves of hemispherical pit structures are formed in the outer sides of the upper end and the lower end of the rotary drum. The double-cylinder ratchet wrench has the advantages that the upper lock sleeve and the lower lock sleeve are additionally arranged on the basis of a traditional double-cylinder ratchet wrench, so that the double-cylinder ratchet wrench is expanded into four fastening positions of different sizes, the double-cylinder ratchet wrench can be matched with fasteners needed by the four different sizes, a sleeve head does not need to be frequently replaced, the double-cylinder ratchet wrench is more suitable for being operated in a narrow space, and use convenience is improved; in addition, the outer side of the grip is sleeved with the grip sleeve made of insulation materials so that the insulation performance of the tool can be guaranteed when the tool is used, anti-skid protruding points are densely distributed on the outer side of the grip sleeve, the grabbing stability is improved, and using is safer.

Description

Technical Field

[0001] The utility model relates to the field of ratchet tools, in particular to an insulating ratchet socket wrench. Background Art

[0002] A ratchet wrench is a tightening tool that can work in one direction and can be put back into position without backing off or rotating the tool, which can improve work efficiency and is also suitable for use in narrow spaces. Current ratchet wrenches are mainly single-barrel or double-barrel structures. A single-barrel structure has only one fastening position, while a double-barrel structure has both ends of the rotating barrel that can be used as fastening positions. However, when using a ratchet wrench, it is usually necessary to select a fastening socket according to the bolts and screws being disassembled or assembled. Current ratchet wrenches need to be used in conjunction with several socket heads, and tool adaptation is achieved by disassembling the socket heads, which is inconvenient to use. At the same time, current ratchet wrenches do not have insulation properties, and are risky and unsafe to use when operated under power or near a power source. Utility Model Content

[0003] The purpose of the utility model is to provide an insulated ratchet socket wrench to solve the above-mentioned problem. On the basis of the traditional double-barrel ratchet wrench, an upper locking sleeve and a lower locking sleeve are added, thereby expanding it into four fastening positions. It can adapt to four required fasteners and does not require frequent replacement of the socket head. It is more suitable for operation in a small space and improves ease of use. See the following description for details.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides an insulating ratchet socket wrench, comprising a shell and a rotating drum, wherein the rotating drum is rotatably arranged inside the shell, and an upper locking sleeve and a lower locking sleeve are respectively sleeved on the upper and lower ends of the rotating drum, a grip is arranged on one side of the outer side of the shell, and an insulating non-slip grip sleeve is designed on the outer side of the grip, and a ratchet is arranged in the middle of the shell;

[0006] A hemispherical recessed groove is provided on one side of the outer sides of the upper and lower ends of the rotating drum, and positioning grooves corresponding to the distribution of the slots are provided on the inner sides of the upper locking sleeve and the lower locking sleeve, and balls capable of being embedded in the inner sides of the slots are provided in both groups of positioning grooves, and a positioning spring is provided on the inner side of the positioning groove to keep the balls pressed against the slots.

[0007] When using the above-mentioned insulating ratchet socket wrench, the upper and lower ends of the rotating drum are used as two sets of fastening sizes, and the opposite ends of the upper locking sleeve and the lower locking sleeve are also used as two sets of fastening sizes. Four sets of fastening positions of different sizes are used to adapt to the disassembly and assembly of four fasteners of different sizes; when it is necessary to use the fastening positions at both ends of the rotating drum to disassemble and assemble the fasteners, the upper locking sleeve or the lower locking sleeve is pushed toward the outer shell position, so that the positioning groove and the card ball are separated from the card groove of the rotating drum to expose the end of the rotating drum, so that the fastening position on the inner side of the end of the rotating drum is used to disassemble and assemble the fastener; when it is necessary to use the fastening positions at both ends of the rotating drum to disassemble and assemble the fasteners, the upper locking sleeve or the lower locking sleeve is pushed toward the outer shell position, so that the card ball is separated from the card groove of the rotating drum through the positioning groove to expose the end of the rotating drum, so that the fastening position on the inner side of the end of the rotating drum is used to disassemble and assemble the fasteners; When positioning the upper locking sleeve or the lower locking sleeve at the end of the rotating drum, push the upper locking sleeve or the lower locking sleeve outward to utilize the positioning grooves on the inner sides of the two sets of locking sleeves to support the inner positioning springs and the card balls to roll into the card grooves at the end of the rotating drum, and use the positioning springs to press the card balls to lock the card grooves, thereby realizing the installation and positioning of the two sets of locking sleeves at the end of the rotating drum; when the fasteners are turned for disassembly and assembly, the restraining teeth of the pawl are supported by the stop ball at the end of the handle to ensure that the pawl can limit the rotation of the gear in one direction, thereby realizing the ratchet function.

[0008] Preferably, both ends of the rotating cylinder are penetrated by vertically extending guide grooves on the side away from the card slot, and the upper locking sleeve and the lower locking sleeve are penetrated by threaded holes on the side away from the card ball, and guide limit pins extending into the guide grooves are fixed in both pin holes, and the guide limit pins are clearance-matched with the guide grooves.

[0009] Preferably, the compression stroke of the positioning spring is greater than the depth of the locking ball embedded in the locking groove, and the length of the guide limit pin extending into the guide groove is less than or equal to the thickness of the outer wall of the rotating drum.

[0010] Preferably, a through hole is vertically penetrated in the middle of the shell to accommodate the rotation of the drum, the through hole is gap-matched with the drum, and an inner cavity connected to the through hole is provided in the middle of the shell, a gear is coaxially fixed on the outside of the drum, and a pawl is provided inside the inner cavity to cooperate with the drum to form a ratchet structure.

[0011] Preferably, an auxiliary pin supporting the rotation of the direction-changing pawl is vertically penetrated through the middle of the shell, and the direction-changing pawl is designed with shift blocks extending from both sides of the inner cavity, and both sets of shift blocks are designed with constraining teeth for engaging the gear on one side close to the gear.

[0012] Preferably, a group of outwardly extending limiting teeth are designed on the side of the two groups of shift blocks away from the constraining teeth, the handle end extends laterally into the inner side of the outer shell, and an anti-slip stop groove is provided on the outer circumference of the handle end, and a pin is vertically penetrated through the outer side of the outer shell and extends into the stop groove.

[0013] Preferably, a receiving groove is provided at the end of the handle, a stop ball is provided at the end of the receiving groove, and a return spring is provided inside the receiving groove to push the stop ball against the limiting tooth.

[0014] Preferably, the outer circumferential side of the grip sleeve is densely covered with semi-spherical anti-slip bumps, and the grip sleeve and the semi-spherical anti-slip bumps are integrally formed.

[0015] The beneficial effect is that the utility model adds an upper locking sleeve and a lower locking sleeve on the basis of a traditional double-barrel ratchet wrench, thereby expanding into four fastening positions of different sizes, and can adapt to the needs of four fasteners of different sizes, without the need to frequently replace the socket head, and is more suitable for operation in a narrow space, thereby improving the convenience of use;

[0016] In addition, an insulating plastic grip is designed on the outside of the handle to ensure the insulation performance of the tool when in use, and anti-slip bumps are densely distributed on the outside of the grip to improve gripping stability and make it safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 these drawings without paying creative work.

[0018] Figure 1 It is the main structural diagram of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the structural disassembly of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure disassembly of the handle of the utility model;

[0022] Figure 5 It is a schematic diagram of the partial structure disassembly of the utility model;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the ratchet of the utility model;

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the rotating drum of the utility model in another direction;

[0025] Figure 8 It is a top view of the structure of the upper side of the utility model;

[0026] Fig. 9 It is a cross-sectional view of the internal structure of the utility model.

[0027] The following are the descriptions of the reference numerals:

[0028] 1. Shell; 101. Inner cavity; 102. Rotating hole; 2. Rotating cylinder; 201. Slot; 202. Guide groove; 203. Gear; 3. Upper locking sleeve; 4. Lower locking sleeve; 5. Handle; 501. Receiving groove; 502. Stop ball; 503. Reset spring; 504. Auxiliary groove; 7. Insulating grip sleeve; 8. Direction conversion pawl; 801. Shift block; 802. Limiting tooth; 803. Constraining tooth; 9. Auxiliary pin; 10. Guide pin; 11. Card ball; 12. Positioning spring; 13. Positioning groove; 14. Pin hole; 15. Card pin. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. 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 implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0030] See also Figure 1-Figure 9 As shown, the utility model provides an insulating ratchet socket wrench, comprising a shell 1 and a rotating drum 2, the rotating drum 2 is rotatably arranged inside the shell 1, and the upper and lower ends of the rotating drum 2 are respectively sleeved with an upper locking sleeve 3 and a lower locking sleeve 4, both ends of the rotating drum 2 and the upper locking sleeve 3 and the lower locking sleeve 4 are used as fastening positions, and four groups of fastening positions of different sizes correspond to four fasteners of different sizes, respectively, a grip 5 is arranged on one side of the outer side of the shell 1, and an insulating grip sleeve 7 is sleeved on the outer side of the grip 5, and a direction conversion pawl 8 that limits the unidirectional rotation of the rotating drum 2 is arranged in the middle of the shell 1;

[0031] A hemispherical recessed groove 201 is provided on one side of the outer sides of the upper and lower ends of the rotating drum 2, and a positioning groove 13 corresponding to the distribution of the positioning groove 201 is provided on the inner sides of the upper locking sleeve 3 and the lower locking sleeve 4. A locking ball 11 capable of being embedded in the inner side of the locking groove 201 is provided in both groups of the positioning grooves 13, and a positioning spring 12 for keeping the locking ball 11 against the locking groove 201 is provided on the inner side of the positioning groove 13. When the locking ball 11 is inserted into the inside of the locking groove 201 of the rotating drum 2, the other side of the locking ball 11 remains in the positioning groove 13, thereby realizing the positioning and installation of the upper locking sleeve 3 and the lower locking sleeve 4 at both ends of the rotating drum 2, and the outer sides of both ends of the rotating drum 2 are both anti-slip structures that can prevent the upper locking sleeve 3 and the lower locking sleeve 4 from sliding.

[0032] As an optional embodiment, both ends of the rotating drum 2 are penetrated by a vertically extending guide groove 202 on the side away from the card slot 201, and the upper locking sleeve 3 and the lower locking sleeve 4 are penetrated by a pin hole 14 on the side away from the card ball 11, and the two pin holes 14 are fixed with a guide limit pin 10 extending into the guide groove limit 202. The guide limit pin 10 and the guide groove 202 are matched with each other to ensure that the guide pin limit pin 10 can guide and limit the up and down sliding movement of the two sets of lock sleeves, and the compression stroke of the positioning spring 12 is greater than the card ball 11 embedded in the card slot 201 The depth ensures that the card ball 11 can be moved out of the card slot 201, so that the two sets of lock sleeves can be separated from the end of the rotating drum 2 to the center of the rotating drum 2. The length of the guide limit pin 10 extending into the guide slot 202 is less than or equal to the thickness of the outer wall of the rotating drum 2. A through hole accommodating the rotation of the rotating drum 2 is vertically penetrated in the middle of the outer shell 1. The through hole is clearance-matched with the rotating drum 2, and an inner cavity 101 communicating with the through hole is provided in the middle of the outer shell 1. A gear 203 is coaxially fixed on the outer side of the rotating drum 2, and a direction conversion pawl 8 is provided inside the inner cavity 101 to cooperate with the rotating drum 2 to form a ratchet structure;

[0033] An auxiliary pin 9 supporting the rotation of the direction-changing pawl 8 is vertically penetrated in the middle of the shell 1. The direction-changing pawl 8 includes shifting blocks 801 extending from both sides of the inner cavity 101. The two groups of shifting blocks 801 are designed with constraining teeth 803 for engaging the gear 203 on the side close to the gear 203. The two groups of shifting blocks 801 are designed with a group of outwardly extending limiting teeth 802 on the side away from the constraining teeth 803. The end of the handle 5 extends horizontally into the inner side of the shell 1, and the outer circle of the end of the handle 5 is provided with an annular stop groove 504. A guide limit pin 10 extending into the auxiliary groove 504 is vertically penetrated from the outer side of the shell 1. The handle 5 is restricted from escaping from the shell 1 by the auxiliary pin 10, so as to improve the overall flexibility of the wrench.

[0034] A receiving groove 501 is provided at the end of the handle 5, and a stop ball 502 is provided at the end of the receiving groove 501. A return spring 503 is designed on the inner side of the receiving groove 501 to push the stop ball 502 against the limiting tooth 802. In this way, the stop ball 502 can be pressed against one side of the limiting tooth 802, thereby keeping one group of constraint teeth 803 close to the gear 203 as a structure for limiting the unidirectional rotation of the gear 203. In addition, when it is necessary to adjust the use direction, the shift block 801 extending out of the inner cavity 101 is shifted, and the limiting tooth 802 is used to push the stop ball 502 into the receiving groove 501 until the limiting tooth 802 is shifted to the inclined surface on the other side and pressed against the stop ball 502, thereby switching the limiting state of the two groups of constraint teeth 803 on the gear 203, thereby realizing the switching action of the unidirectional rotation limiting direction of the ratchet.

[0035] The outer circumference of the grip sleeve 7 is densely covered with semi-spherical rubber protrusions, and the grip sleeve 7 and the rubber protrusions are integrally formed, thereby improving the holding stability while achieving the insulation performance of the ratchet wrench.

[0036] With the above structure, when in use, the upper and lower ends of the rotating drum 2 serve as two sets of fastening positions, and the opposite ends of the upper locking sleeve 3 and the lower locking sleeve 4 also serve as two sets of fastening positions. Through four sets of fastening positions with different shapes, four types of fasteners can be adapted for rotation and assembly. When it is necessary to use the fastening positions at both ends of the rotating drum 2 to disassemble and assemble the fasteners, the upper locking sleeve 3 or the lower locking sleeve 4 is pushed toward the position of the outer shell 1, so that the ball 11 is separated from the slot 201 of the rotating drum 2 through the positioning groove 13 to expose the end of the rotating drum 2, so that the fastening position on the inner side of the end of the rotating drum 2 can be used to disassemble and assemble the fasteners. When the upper locking sleeve 3 or the lower locking sleeve 4 needs to be positioned to the rotating drum 2, the upper locking sleeve 3 or the lower locking sleeve 4 can be used to disassemble and assemble the fasteners. When the cylinder 2 is at the end, the upper locking sleeve 3 or the lower locking sleeve 4 is pushed outward, so that the positioning grooves 13 inside the two sets of locking sleeves support the inner positioning springs 12 and the card ball 11 to roll into the card groove 201 at the end of the rotating cylinder 2, and the card ball 11 is pressed against the locking card groove 201 by the positioning spring 12, so as to realize the installation and positioning of the two sets of locking sleeves at the end of the rotating cylinder 2; when the fastener is twisted for disassembly and assembly, the restraining teeth 803 of the pawl 8 are supported by the stop ball 502 at the end of the handle 5, so as to ensure that the pawl 8 can limit the rotation of the gear 203 in one direction, so as to realize the ratchet function;

[0037] By adding an upper locking sleeve 3 and a lower locking sleeve 4 to the traditional double-barrel ratchet wrench, it is expanded into four fastening positions of different sizes, which can adapt to four fasteners of different sizes, and there is no need to frequently replace the socket head, which is more suitable for operation in a small space and improves the convenience of use;

[0038] In addition, a grip sleeve 7 made of insulating plastic material is sleeved on the outside of the handle 5 to ensure the insulation performance of the tool when in use, and anti-slip bumps are densely distributed on the outside of the grip sleeve 7 to improve the gripping stability and make it safer to use.

[0039] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An insulated ratchet socket wrench, characterized in that: The invention comprises a housing (1) and a rotating drum (2), wherein the rotating drum (2) is rotatably arranged inside the housing (1), and the upper and lower ends of the rotating drum (2) are respectively provided with an upper locking sleeve (3) and a lower locking sleeve (4), and a handle (5) is provided on one side of the outside of the housing (1), and an insulating non-slip grip sleeve (7) is provided on the outside of the handle (5), and a direction conversion pawl (8) is provided in the middle of the housing (1); A hemispherical recessed groove (201) is provided on one side of the outer sides of the upper and lower ends of the rotating drum (2); positioning grooves (13) corresponding to the positioning grooves (201) are provided on the inner sides of the upper locking sleeve (3) and the lower locking sleeve (4); a locking ball (11) capable of being embedded in the inner side of the locking groove (201) is provided in both groups of the positioning grooves (13); and a positioning spring (12) for keeping the locking ball (11) pressed against the locking groove (201) is provided on the inner side of the positioning groove (13).

2. The insulated ratchet socket wrench according to claim 1, characterized in that: Both ends of the rotating drum (2) are penetrated by a vertically extending guide groove (202) on a side away from the locking groove (201); both the upper locking sleeve (3) and the lower locking sleeve (4) are penetrated by a pin hole (14) on a side away from the locking ball (11); and both groups of pin holes (14) are fixed with guide limit pins (10) extending into the guide groove (202); the guide limit pins (10) are clearance-matched with the guide groove (202).

3. The insulated ratchet socket wrench according to claim 2, characterized in that: The compression stroke of the positioning spring (12) is greater than the depth of the locking ball (11) embedded in the locking groove (201), and the length of the guide limit pin (10) extending into the guide groove (202) is less than or equal to the thickness of the outer wall of the rotating drum (2).

4. The insulated ratchet socket wrench according to claim 3, characterized in that: A through hole is vertically penetrated in the middle of the outer shell (1) to accommodate the rotation of the rotating drum (2), the through hole is clearance-matched with the rotating drum (2), and an inner cavity (101) connected to the through hole is provided in the middle of the outer shell (1), a gear (203) is coaxially designed on the outer side of the rotating drum (2), and a direction conversion pawl (8) is provided inside the inner cavity (101) to cooperate with the rotating drum (2) to form a ratchet structure.

5. The insulating ratchet socket wrench according to claim 4, characterized in that: An auxiliary pin (9) supporting the rotation of the direction-changing pawl (8) is vertically penetrated through the middle of the housing (1); the pawl (8) is designed with shifting blocks (801) extending out of both sides of the inner cavity (101); and two sets of shifting blocks (801) are provided with constraining teeth (803) for engaging the gear (203) on one side close to the gear (203).

6. The insulating ratchet socket wrench according to claim 5, characterized in that: A group of outwardly extending limiting teeth (802) is designed on one side of the two groups of shift blocks (801) away from the restraining teeth (803); the end of the handle (5) extends horizontally into the inner side of the outer shell (1); and an annular stop groove (504) is arranged on the outer circle of the end of the handle (5); and a latch (15) is vertically penetrated through the outer side of the outer shell (1) and extends into the stop groove (504).

7. The insulated ratchet socket wrench according to claim 6, characterized in that: The end of the handle (5) is provided with a receiving groove (501), the end of the receiving groove (501) is provided with a stop ball (502), and the inner side of the receiving groove (501) is provided with a return spring (503) for pushing the stop ball (502) against the limiting tooth (802).

8. The insulated ratchet socket wrench according to claim 7, characterized in that: The outer circumferential side of the grip sleeve (7) is densely covered with semi-spherical anti-skid protrusions, and the grip sleeve (7) and the semi-spherical anti-skid protrusions are integrally formed.

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