Gun type grasping forceps with rotatable forceps heads

Abstract

The utility model discloses gun type grasping forceps with rotatable forceps heads, and belongs to the technical field of medical instruments. According to the design, a connecting structure of the forceps head, the forceps body, the rotary adjusting sleeve and the forceps handle is fused, opening and closing regulation of the forceps petals is achieved through relative drawing and inserting of the sleeve and the core rod, particularly, the designed rotary adjusting sleeve enables the forceps head to have the free rotating capacity, the structure is simplified, and cost is reduced. Due to the high-temperature-resistant application of the structure and the material, the service life of the product is greatly prolonged while the functionality and the stability of the product under high-temperature disinfection are ensured. In addition, the product not only improves the flexibility and convenience of surgical operation, but also enhances the durability and stability of the product, and through the rotating function of the forceps heads, the surgical application range is expanded, the surgical efficiency is improved, and the surgical safety is ensured. According to the utility model, the surgical operation difficulty is reduced, the technical progress of medical instruments is promoted, and the marker post effect is developed for the innovation of the medical industry.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a gun-type gripper with a rotatable gripper head. Background Technology

[0002] Grasping forceps are commonly used auxiliary medical instruments in general surgery. Besides assisting the main surgeon in cutting, they are also used for manipulating tissue, grasping foreign objects, and disinfecting dressings. With the miniaturization of surgical incisions, the opening angle of traditional scissor-type grasping forceps has been limited. Therefore, a sliding-plate lymph node forceps, as described in Chinese Utility Model Patent CN212521856U, has emerged as a replacement for the traditional scissor-type forceps. This sliding plate structure is more suitable than scissor forks for significantly reducing the opening distance of the forceps handles in small incision surgeries, while still achieving the same forceps head opening width. Furthermore, by reducing the size of the forceps body and occupying less incision space, and to avoid external interference between the forceps handles and other instruments, derivative structures that change the orientation of the forceps handles have emerged. Because its shape resembles a pistol, it is called a pistol-type grasping forceps. Chinese Design Patent CN304223427S also refers to it as a sickle-shaped grasping forceps.

[0003] As the use of pistol-type forceps becomes more widespread, medical professionals have discovered that different orientations of the forceps head opening surfaces during various surgeries offer numerous advantages, such as better tissue gripping, improved field of vision, and reduced interference between instruments. However, relying solely on posture and hand gestures to adjust the angle of the forceps head opening surfaces not only easily leads to wrist fatigue over extended periods but also makes it difficult to maintain a fixed posture for long. Consequently, a new type of pistol-type forceps with rotatable heads has emerged. Currently, pistol-type forceps available can be broadly categorized into two types based on their design and structure: rigid forceps and flexible forceps.

[0004] Grappling forceps, represented by Chinese utility model patents CN210843317U, CN201631297U, and Chinese utility model patent application CN103505263A, belong to the category of rigid forceps. They basically use ball springs or micro-bearings as the core rotating components to rotate the forceps head and change the orientation of the opening and closing surfaces. However, such structures are relatively complex and the cost is relatively high. Most importantly, the core components such as springs and bearings cannot withstand the overall high-temperature sterilization conditions after long-term use of surgical instruments and are prone to rapid failure due to factors such as high temperature. The gripping forceps represented by Chinese utility model patents CN202015236U and CN218684589U belong to the category of flexible forceps. Among them, the "bidirectional bendable oval gripping forceps" described in patent CN202015236U adds a one-dimensional swing function to the end of the forceps body, but the opening and closing surface of its forceps head is always fixed relative to the swing surface, which still has the limitation of gripping. In addition, its rotating core ball spring is the same as that of rigid forceps, and repeated high-temperature sterilization will cause deformation of the elastic components, which will eventually reduce the life of the gripping forceps. As for the "universal shaping oval forceps" described in patent CN218684589U, it relies solely on manual pre-shaping before insertion into the incision during the operation, and its effect is probably unsatisfactory. In the absence of fully electronic control to achieve serpentine drive in flexible forceps bodies, such patents are currently more of a conceptual design idea.

[0005] In summary, existing technologies suffer from technical problems such as structural complexity and high cost, poor resistance to high-temperature sterilization, limitations of flexible clamping bodies, inconvenience and fatigue in operation, limited gripping and field of vision, and lack of long-term stability and durability. Therefore, based on the above shortcomings, there is an urgent need for a gun-type gripper with a rotatable clamping head that meets the requirements for rotation adjustment, has a simple structure, and is durable. Utility Model Content

[0006] In order to solve the technical problems existing in the prior art, this utility model provides a gun-type gripper with a rotatable gripper head. It aims to achieve the rotatable opening and closing surface of the gripper head through a simpler structure, while being able to withstand long-term repeated high-temperature sterilization without affecting the performance and service life of the instrument.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A pistol-style gripper with a rotatable head includes a gripper head, a gripper body, a rotating sleeve, and a gripper handle connected in sequence.

[0009] The clamp head consists of two opposing clamping jaws;

[0010] The clamp body consists of a sleeve and a core rod. The reduced diameter section of the sleeve is provided with external threads, and the inner side of the cap is provided with a ring of toothed grooves. The core rod is a two-section stepped shaft. The end of the thin shaft is flat and has a through hole, and the thick shaft has an irregular cross-shaped connecting hole A. The core rod and the sleeve can be moved in and out relative to each other to control the opening and closing of the clamp discs.

[0011] The rotary sleeve is fitted onto the reduced-diameter section of the sleeve and is screwed together by internal and external threads. It is used to fix or release the connection between the pliers body and the pliers handle to achieve rotational adjustment of the pliers head.

[0012] The clamp handle consists of a fixed handle and a movable handle. The fixed handle has an irregularly shaped cross-shaped connecting hole B and a tube. The tube has an enlarged diameter area and protruding teeth. The flat head of the movable handle passes through the irregularly shaped cross-shaped connecting hole B of the fixed handle and is hinged to the thick shaft of the core rod. The insertion and withdrawal movement of the core rod is controlled by rotating the movable handle.

[0013] Furthermore, each of the clamps has a body, a handle, and an opening, wherein the handle is hinged to the body by a pin to enable the opening and closing of the clamps.

[0014] Furthermore, the valve body is shaped like a teacup, and the valve handle is a solid upright plate that extends above the valve orifice. The valve handle has two holes, one of which is located above the valve orifice and away from the valve body, for hinged connection with the through hole of the sleeve; the other hole is located flush with the valve orifice and close to the valve body, for hinged connection with the through hole at the end of the thin shaft of the core rod.

[0015] Furthermore, the thin and thick shafts of the core rod are rotatably connected to support relative rotation between the pliers body and the pliers handle.

[0016] Furthermore, the outer wall of the rotary sleeve is provided with a textured surface to increase friction during rotation.

[0017] Furthermore, the movable handle has a through hole A in the middle, and the flat head has a through hole B.

[0018] Furthermore, when the adjusting sleeve is tightened, the engagement of the convex teeth and the annular tooth groove fixes the relative position of the pliers body and the pliers handle, preventing the pliers head from slipping and rotating during use.

[0019] Furthermore, when the adjusting sleeve is loosened, the convex teeth disengage from the annular tooth groove, allowing the jaws and handles to rotate relative to each other, thereby adjusting the opening and closing surfaces of the jaws to the desired angle position.

[0020] Furthermore, a threaded hole is formed on the outer wall of the rotary sleeve in a direction perpendicular to the axis of the rotary sleeve.

[0021] Furthermore, the outer diameter of the sleeve 21 is no greater than 8 mm, and the outer diameter of the core rod 22 is no greater than 3 mm.

[0022] The beneficial effects of this utility model are:

[0023] Compared with the prior art, the rotatable pliers of this invention have the following advantages:

[0024] (1) Simplified structure and reduced cost: This utility model simplifies the structure of the clamp head rotating mechanism through innovative design, reducing the use of complex components such as ball springs and micro bearings, thereby reducing manufacturing costs. At the same time, the simplified structure also facilitates production and maintenance, improving the product's economy and market competitiveness.

[0025] (2) Improved high-temperature sterilization ability: In view of the problem that the core components in the existing technology are not resistant to high-temperature sterilization, this utility model adopts the design of high-temperature resistant materials and structures to ensure that the pliers rotating mechanism maintains stability and functionality during high-temperature sterilization and extends the service life of the product.

[0026] (3) Enhanced operational flexibility and convenience: This utility model achieves flexible adjustment of the forceps head opening and closing surface through the screw-on design between the sleeve and the cannula, eliminating the need for adjustments based on the medical staff's posture and gestures, thus reducing the operational difficulty and wrist fatigue during surgery. At the same time, this design also improves surgical efficiency and success rate, providing medical staff with a better operating experience.

[0027] (4) Expanding the scope of surgical applications: Since the opening and closing surfaces of the forceps head can be rotated and adjusted, this utility model can better adapt to the needs of different surgical scenarios, such as grasping tissues, grabbing foreign objects, and disinfecting dressings. In addition, by adjusting the orientation of the opening and closing surfaces, a better surgical field of view can be obtained, avoiding external space interference between instruments and improving the safety and success rate of the surgery.

[0028] (5) Improved durability and stability: This invention improves the durability and stability of the product by optimizing material selection and structural design. It maintains good performance and function even under frequent use and high-temperature sterilization conditions, reducing failure rate and maintenance costs.

[0029] (6) Promoting the advancement of medical device technology: The successful application of this utility model will promote the further development of gun-type grasping forceps technology, bringing new design concepts and technological breakthroughs to the field of surgical instruments. At the same time, it also provides useful reference and guidance for the research and development of other similar medical devices. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0031] Figure 1 This is a schematic diagram of the gun-type gripper with a rotatable gripper head according to the present invention.

[0032] Figure 2 This is a schematic diagram of a portion of the connection between the pliers head and the pliers body (pliers head structure) of this utility model;

[0033] Figure 3 This is a partial cross-sectional view of the connection between the movable handle and the core rod (rotatable core rod structure) of this utility model;

[0034] Figure 4 This is a partial cross-sectional schematic diagram of the connection between the clamp body and the clamp handle of this utility model (rotary adjustment structure);

[0035] The attached diagram is labeled as follows: 1-Pliers head, 11-Pliers flap, 111-Flap body, 112-Flap handle, 113-Flap opening, 2-Pliers body, 21-Sleeve, 22-Core rod, 211-Reduced diameter section, 212-External thread, 213-Cap, 214-Annular toothed groove, 221-Fine shaft, 222-Coarse shaft, 223-Irregular cross-shaped connecting hole A, 3-Adjustable sleeve, 31-Rough texture, 32-Internal thread, 33-Threaded hole, 4-Pliers handle, 41-Fixed handle, 42-Moving handle, 411-Tube, 412-Irregular cross-shaped connecting hole B, 4111-Expanded diameter area, 4112-Protruding tooth, 421-Flat head, 422-Through hole A, 423-Through hole B. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. The following description, in conjunction with the accompanying drawings... Figure 1-4 Further explanation is given regarding the gun-type gripper with rotatable pliers.

[0037] Example 1

[0038] A pistol-style gripper with a rotatable head includes a gripper head 1, a gripper body 2, a rotating sleeve 3, and a gripper handle 4 connected in sequence.

[0039] The clamp head 1 consists of two opposing clamping discs 11; the clamp body 2 consists of a sleeve 21 and a core rod 22. The reduced-diameter section 211 of the sleeve 21 is provided with an external thread 212, and the inner side of the cap 213 is provided with a ring of annular teeth 214; the core rod 22 is a two-section stepped shaft, the thinner shaft 221 is flat at the end and has a through hole, and the thicker shaft 222 has an irregularly shaped cross-shaped connecting hole A223. The core rod 22 and the sleeve 21 can be moved relative to each other to control the opening and closing of the clamping discs 11; the adjustable sleeve 3 is fitted onto the reduced-diameter section 211 of the sleeve 21 and is connected to the sleeve 21 by an internal thread 32. The external thread 212 is screwed on to fix or release the connection between the jaw body 2 and the jaw handle 4 to achieve rotational adjustment of the jaw head 1. The jaw handle 4 consists of a fixed handle 41 and a movable handle 42. The fixed handle 41 is provided with an irregular cross-shaped connecting hole B412 and a tube 411. The tube 411 is provided with an enlarged diameter area 4111 and a tooth 4112. The flat head 421 of the movable handle 42 passes through the irregular cross-shaped connecting hole B412 of the fixed handle 41 and is hinged to the thick shaft 222 of the core rod 22. The insertion and withdrawal movement of the core rod 22 is controlled by the rotation of the movable handle 42.

[0040] Each of the clamping jaws 11 has a jaw body 111, a jaw handle 112, and a jaw opening 113. The jaw handle 112 is hinged to the clamp body 2 by a pin to open and close the clamping head. The jaw body 111 is cup-shaped, and the jaw handle 112 is a solid upright plate that extends above the jaw opening 113. The jaw handle 112 has two holes: one is located above the jaw opening 113 and away from the jaw body 111, for hinged to the through hole of the sleeve 21; the other hole is flush with the jaw opening 113 and close to the jaw body 111, for hinged to the through hole at the end of the thin shaft 221 of the core rod 22. The thin shaft 221 and the thick shaft 222 of the core rod 22 are rotatably connected to support the relative rotation between the clamp body 2 and the clamping handle 4. The outer wall of the adjusting sleeve 3 has a textured surface 31 to increase friction during rotation. The movable handle 42 has a through hole A422 in the middle, and the flat head 421 has a through hole B423.

[0041] When the adjusting sleeve 3 is tightened, the engagement of the protruding teeth 4112 with the annular toothed groove 214 fixes the relative position of the jaw body 2 and the jaw handle 4, preventing the jaw head 1 from slipping and rotating during use. When the adjusting sleeve 3 is loosened, the protruding teeth 4112 disengage from the annular toothed groove 214, allowing the jaw body 2 and the jaw handle 4 to rotate relative to each other, thereby adjusting the opening and closing surfaces of the jaw head 1 to the desired angle position. A threaded hole 33 is formed on the outer wall of the adjusting sleeve 3 perpendicular to its axis.

[0042] Working principle:

[0043] Clamping head opening and closing mechanism: The rotation of the movable handle 42 drives the rod core 22, which is hinged to it, to move in and out of the sleeve 21. This movement is connected to the handle 112 of the clamping discs 11 by a pin, so that the two clamping discs 11 rotate about the hinge point at the end of the sleeve 21, thereby realizing the opening and closing of the clamping head.

[0044] Adjustment of jaw rotation: The rotation function of jaw 1 is achieved through the relative rotation between jaw body 2 and jaw handle 4. The adjusting sleeve 3, as a movable clamping component, secures or releases the connection between jaw body 2 and jaw handle 4 by tightening or loosening it. When tightened, the engagement of the convex teeth 4112 and the annular toothed groove 214 prevents the jaw body from slipping during use; when loosened, the two can rotate relative to each other, thereby adjusting the angle of the jaw.

[0045] Structural design support: The relative rotation design between the thin shaft 221 and the thick shaft 222 of the core 22 ensures that the rotation of the clamp body 2 will not affect the opening and closing action of the clamp disc 11 driven by the core 22, thus ensuring that the clamp can maintain the normal opening and closing function of the clamp head during rotation.

[0046] Work process:

[0047] Initial state: The pliers head 1 is in the closed state, the adjusting sleeve 3 is tightened, the pliers body 2 is fixedly connected to the pliers handle 4, and the pliers head angle is not adjustable.

[0048] Opening the pliers: The user holds and rotates the movable handle 42, causing the rod core 22 to move upward inside the sleeve 21, thereby causing the two pliers 11 to open outward with the hinge point at the end of the sleeve 21 as the center, and the pliers head opens.

[0049] Adjusting the angle: To adjust the angle of the pliers, the user first loosens the adjusting sleeve 3 to release the fixed connection between the pliers body 2 and the pliers handle 4. Then, the pliers body 2 can be freely rotated to the desired angle, and the adjusting sleeve 3 is tightened again. The relative position of the pliers body 2 and the pliers handle 4 is fixed by the engagement of the convex tooth 4112 and the annular tooth groove 214, thus completing the angle adjustment.

[0050] Closing the jaws: After the angle adjustment is completed, the user holds and rotates the movable handle 42 again, which drives the rod core 22 to move downward in the sleeve 21, causing the two jaws 11 to close inward and the jaws to close.

[0051] Using the grippers: After the jaws close, you can perform gripping and clamping operations. After the operation is complete, repeat the above steps to open the jaws and release the clamped object.

[0052] This invention utilizes a simpler structure to achieve an adjustable head on a gun-type gripper, facilitating disassembly and cleaning and preventing dirt accumulation. This type of gun-type gripper with a rotatable head has a lower production cost per unit, making it more economical. Furthermore, this type of gun-type gripper can withstand high-frequency, high-temperature sterilization while maintaining structural stability, significantly extending its service life compared to other rotatable gun-type grippers and reducing the replacement cost of medical devices.

[0053] Example 2

[0054] This embodiment is either a new embodiment or a supplement to Embodiment 1.

[0055] A pistol-type pliers with a rotatable head includes: a pliers head 1, a pliers body 2, a rotating sleeve 3, and a pliers handle 4 (e.g., Figure 1 (as shown);

[0056] The clamp head 1 consists of two clamping petals 11; the petal body 111 is cup-shaped, and the petal handle 112 is a solid upright plate that extends above the petal opening 113. There are two holes on the petal handle 112, one positioned above the petal opening 113 and away from the petal body 111, and the other roughly flush with the petal opening 113 and close to the petal body 111. By interlocking the petal openings 113 of the two identical clamping petals 11 with their handles facing the same direction, the clamp head 1 is formed (e.g., ...). Figure 2 (as shown);

[0057] The clamp body 2 is composed of a sleeve 21 and a core rod 22. On the end wall of the sleeve 21 near the clamp head 1, two parallel through holes are symmetrically distributed around the axis of the sleeve 21. The other end of the sleeve 21 away from the clamp head 1 is a mushroom-shaped structure with a reduced diameter cap. There is an external thread 212 in the reduced diameter section 211, and there is a ring of annular toothed grooves 214 on the inner side of the cap 213. The core rod 22 is a two-section stepped shaft. The thin shaft 221 is inserted into the sleeve 21. The end of the thin shaft 221 is flat and has a through hole on the flat surface. The two shafts, the thick and thin sections, can rotate relative to each other. There is an irregular cross-shaped connecting hole A223 in the axial section of the thick shaft 222 of the core rod 22.

[0058] The outer wall of the rotary sleeve 3 has a textured surface 31 to increase friction, and the inner wall has an internal thread 32. A threaded hole 33 is opened on the outer wall perpendicular to the axis of the rotary sleeve 3.

[0059] The clamp handle 4 consists of a fixed handle 41 and a movable handle 42. The fixed handle 41 has a cross-shaped connecting hole B412 in its middle. One end of the cross-shaped connecting hole B412 is a handle ring of the fixed handle 41, and the other end is connected to a tube 411. The angle between the axis of the tube 411 and the handle body of the fixed handle 41 is between 90° and 180°. The tube 411 has an enlarged diameter section 4111 inside, and several protruding teeth 4112 are located on the inner edge of the enlarged diameter section 4111 away from the handle ring of the fixed handle 41. The movable handle 42 has a through hole A422 in its middle. One end of the through hole A422 is a handle ring of the movable handle 42, and the other end is a flat head 421. A through hole B423 is located on the flat head 421.

[0060] The two flaps 112 of the clamp head 1 are inserted into the end of the sleeve 21 of the clamp body 2. The holes on the two flaps 112 that are roughly flush with the flap openings 113 are aligned with the through holes at the end of the thin shaft 221 of the core rod 22 and are hinged by pins. The other hole on the two flaps 112 is aligned with the two parallel through holes at the end of the sleeve 21 and is hinged by pins respectively. When the core rod 22 and the sleeve 21 move in and out relative to each other, under the traction of the hinge point at the end of the thin shaft 221, the two clamp flaps rotate about the hinge point at the end of the sleeve 21 as the center, realizing the opening and closing of the two clamp flaps 11.

[0061] The flat head 421 of the movable handle 42 passes through the irregular cross-shaped connecting hole B412 in the middle of the fixed handle 41, and is hinged to the fixed handle 41 after being inserted into the through hole A422 by a pin. The flat head 421 is inserted into the irregular cross-shaped connecting hole A223 of the thick shaft 222 of the rod core 22, and is hinged to the rod core 22 after being inserted into the through hole B423 by a pin (as shown). Figure 3 (As shown); When the movable handle 42 rotates around the hinge point with the fixed handle 41, the hinge point between the flat end 421 and the rod core 22 will pull the rod core 22 to move in and out of the sleeve 21, thereby realizing the movable handle 42 controlling the opening and closing of the two clamping petals 11.

[0062] The rotation adjustment of the pliers head 1 is achieved by the relative rotation of the pliers body 2 and the pliers handle 4 connected to the pliers head 1. This rotation is achieved using a nested structure with movable clamping components. The adjusting sleeve 3 is a movable clamping component that fits onto the reduced diameter 211 of the sleeve 21 and is screwed onto the external thread 212 on the reduced diameter 211 (e.g., ...). Figure 4 As shown), the sleeve 3 is rotated and translated by turning the knob; the cap 213 of the sleeve 21 is clearance-fitted with the expansion section 4111 of the tube 411, and the reduction section 211 of the sleeve 21 is clearance-fitted with the inner hole of the tube 411, which is a double L-shaped nested structure (as shown). Figure 4When the screw of the adjusting sleeve 3 is turned off, the adjusting sleeve 3 and the cap 213 of the sleeve 21 clamp the edge of the expansion section 4111 of the tube 411. Since the convex tooth 4112 and the annular tooth groove 214 face each other and are matched in size, the convex tooth 4112 and the tooth groove ring 214 engage when clamped, which can prevent the gripper from slipping and rotating during use. When the screw of the adjusting sleeve 3 is turned on, the convex tooth 4112 disengages from the tooth groove ring 214, and the sleeve 21 and the tube 411 can rotate relative to each other. After the opening and closing surface of the gripper head 1 is adjusted to the required angle position, the screw of the adjusting sleeve 3 is turned off again to re-tighten the connection between the gripper body 2 and the gripper handle 4.

[0063] The design structure in which the thin shaft 221 and the thick shaft 222 of the rod core 22 can rotate relative to each other (e.g.) Figure 3 As shown), the clamp body 2 and the clamp handle 4 work together to complete the relative rotation;

[0064] While ensuring the rigidity of the clamp body, the outer diameter of the sleeve 21 is no greater than 8mm, and the outer diameter of the core rod 22 is no greater than 3mm;

[0065] If required by usage conditions, a screw can be screwed into the threaded hole 33 of the adjusting sleeve 3 to tighten it and prevent the adjusting sleeve 3 from loosening; the specification of the internal thread 32 of the adjusting sleeve 3 is generally M6X0.75, and the specification of the threaded hole 33 is M3X0.5.

[0066] The convex teeth 4112 are generally distributed in 2 to 4 evenly on the end face; the tooth peak angle interval of the annular tooth groove 214 is generally 10°.

[0067] This invention utilizes a movable clamping component with an interlocking structure to achieve rotation and fastening of the gripper head in a pistol-type gripper. The engagement of the convex teeth 4112 and the annular toothed groove 214 prevents slippage between the rotatable parts. A two-section rotatable rod core 22, in conjunction with the gripper head, completes rotational adjustment. A threaded hole 33 is added to the adjusting sleeve 3, and a screw is used to tighten it, preventing loosening after fastening. This invention, through a simpler structure, not only achieves a rotatable gripper head in a pistol-type gripper but also facilitates disassembly and cleaning, preventing dirt accumulation. It has lower production costs and is more economical. Furthermore, it can withstand high-frequency, high-temperature sterilization while maintaining structural stability, significantly extending its service life and reducing the cost of using medical devices compared to other rotatable pistol-type grippers.

[0068] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pistol-type gripper with a rotatable head, comprising a gripper head (1), a gripper body (2), a rotating sleeve (3), and a gripper handle (4) connected in sequence, characterized in that: The clamp head (1) consists of two opposing clamping plates (11); The clamp body (2) is composed of a sleeve (21) and a core rod (22). The reduced diameter section (211) of the sleeve (21) is provided with an external thread (212), and the inner side of the cap (213) is provided with a ring of toothed grooves (214). The core rod (22) is a two-section stepped shaft. The end of the thin shaft (221) is flat and provided with a through hole, and the thick shaft (222) is provided with an irregular cross-shaped connecting hole A (223). The core rod (22) and the sleeve (21) can be moved relative to each other to control the opening and closing of the clamp discs (11). The rotary sleeve (3) is fitted onto the reduced diameter section (211) of the sleeve (21) and is screwed together with the external thread (212) through the internal thread (32) to fix or release the connection between the pliers body (2) and the pliers handle (4) to realize the rotational adjustment of the pliers head (1). The clamp handle (4) consists of a fixed handle (41) and a movable handle (42). The fixed handle (41) is provided with an irregular cross-shaped connecting hole B (412) and a tube (411). The tube (411) is provided with an enlarged diameter area (4111) and a tooth (4112). The flat head (421) of the movable handle (42) passes through the irregular cross-shaped connecting hole B (412) of the fixed handle (41) and is hinged to the thick shaft (222) of the core rod (22). The insertion and withdrawal movement of the core rod (22) is controlled by the rotation of the movable handle (42).

2. The pistol-type gripper with rotatable pliers according to claim 1, characterized in that: Each of the clamps (11) has a body (111), a handle (112), and an opening (113). The handle (112) is hinged to the body (2) by a pin to enable the clamps to open and close.

3. The pistol-type gripper with rotatable pliers according to claim 2, characterized in that: The valve body (111) is shaped like a teacup, and the valve handle (112) is a solid upright plate that is higher than the valve opening (113). The valve handle (112) is provided with two holes. One hole is located higher than the valve opening (113) and far away from the valve body (111), and is used to be hinged to the through hole of the sleeve (21). The other hole is located flush with the valve opening (113) and close to the valve body (111), and is used to be hinged to the through hole at the end of the thin shaft (221) of the core rod (22).

4. The pistol-type gripper with rotatable pliers according to claim 1, characterized in that: The thin shaft (221) and the thick shaft (222) of the core rod (22) can be rotatably connected to support the relative rotation between the pliers body (2) and the pliers handle (4).

5. The pistol-type gripper with rotatable pliers according to claim 3, characterized in that: The outer wall of the rotary sleeve (3) is provided with a textured surface (31) to increase friction during rotation.

6. The pistol-type gripper with rotatable pliers according to claim 1, characterized in that: The movable handle (42) has a through hole A (422) in the middle, and the flat head (421) has a through hole B (423).

7. The pistol-type gripper with rotatable pliers according to claim 1, characterized in that: When the adjusting sleeve (3) is tightened, the relative position of the pliers body (2) and the pliers handle (4) is fixed by the engagement of the convex teeth (4112) and the annular tooth groove (214), preventing the pliers head (1) from slipping and rotating during use.

8. The pistol-type gripper with rotatable pliers according to claim 1, characterized in that: When the adjusting sleeve (3) is loosened, the convex tooth (4112) disengages from the annular tooth groove (214), allowing the jaw (2) to rotate relative to the jaw handle (4), thereby adjusting the opening and closing surfaces of the jaw head (1) to the desired angle position.

9. The pistol-type gripper with rotatable pliers head according to any one of claims 1 to 8, characterized in that: A threaded hole (33) is opened on the outer wall of the rotary sleeve (3) in a direction perpendicular to the axis of the rotary sleeve (3).

10. The pistol-type gripper with a rotatable pliers head according to any one of claims 1 to 8, characterized in that: The outer diameter of the sleeve (21) is no greater than 8 mm, and the outer diameter of the core rod (22) is no greater than 3 mm.

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