Multifunctional extractor

Abstract

The utility model discloses a multifunctional extractor, which belongs to the technical field of mechanical engineering and comprises a main body rod, a pull head structure is arranged at one end of the main body rod, tail threads are arranged on the outer wall of the other end of the main body rod, an operating handle is mounted on the outer wall of the other end of the main body rod in a threaded manner, and a slope protection part is fixed at one end, close to the pull head structure, of the operating handle. A sliding weight component is clamped on the outer wall of the body rod in a sliding mode, a limiting groove is formed in the outer wall of the body rod, a check block is fixed to the body rod, a center hole is formed in the sliding weight component, a check ring used in cooperation with the check block is fixed to the inner wall of the center hole, a sliding foot block is fixed to the inner wall of the center hole, and one end of the sliding foot block is close to the outer wall of the body rod. A clamping part is fixed on the sliding foot block, the clamping part extends into the limiting groove, the sliding hammer and the check block structure of the extractor can avoid clamping injury, and the safety is improved; the sliding foot block is matched with the limiting groove, so that sliding is stable, and pulling-out efficiency is improved; the slideway space ensures smooth operation; and the puller is adaptive to different positioning pins, so that the universality is high.

Description

Technical Field

[0001] This utility model relates to a multifunctional puller, belonging to the field of mechanical engineering technology. Background Technology

[0002] Pullers are mainly used in the field of mechanical engineering for pulling out positioning shafts and positioning pins. Their overall function is to ensure the smooth disassembly and replacement of mechanical parts, and to maintain the normal operation and upgrading of mechanical systems.

[0003] During use, it can accurately pull out the positioning shaft and positioning pin, reducing wear and malfunctions during the pulling process, avoiding damage to surrounding components, and ensuring the integrity of the mechanical structure; it can also be used under different working conditions, such as high temperature, high pressure, and confined spaces, greatly improving the applicability and versatility of the device; it can improve the efficiency of the pulling operation and reduce labor costs and time costs.

[0004] For example, Chinese utility model patent application CN201920219511.0 discloses an impact-type puller, which includes a connecting rod, a hammer slidably sleeved on the connecting rod, a stop block threadedly fixed to one end of the connecting rod, a union threadedly fixed to the other end of the connecting rod, and a handle provided between the union and the hammer.

[0005] The puller in the above document can quickly adjust the handle to meet the user's operating needs. However, the existing puller has a poor user experience. The hammer and other inertial objects are simply slid-fitted and strike the obstructing object after sliding. In the above document, the stop block is used. If the operation is not done properly, it is easy to pinch the user's hand, so the safety is poor. Therefore, this utility model is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a multifunctional puller to solve the above-mentioned problems, which can solve the problem in the prior art where an inertial object directly hits an obstruction on one side, easily causing injury to people.

[0007] This utility model achieves the above-mentioned objectives through the following technical solution: a multifunctional puller includes a main rod, one end of which is provided with a pull head structure for connecting with an external positioning shaft or positioning pin, thereby facilitating force application for pull-out; the other end of which has a tail thread on its outer wall and an operating handle is installed by screws, allowing for easy hand gripping; a slope protection part is fixed at the end of the operating handle near the pull head structure; a sliding hammer component is slidably engaged on the outer wall of the main rod; a limit groove is formed on the outer wall of the main rod; a stop block is fixed on the main rod; the sliding hammer component pulls out the positioning pin by hammering the stop block; a central hole is formed on the sliding hammer component, and a retaining ring for use with the stop block is fixed on the inner wall of the central hole.

[0008] Preferably, in order to enable the sliding hammer component to slide stably on the main body rod and prevent the sliding hammer component from rotating, a sliding foot block is fixed on the inner wall of the central hole, one end of the sliding foot block is close to the outer wall of the main body rod, and a snap-fit ​​part is fixed on the sliding foot block, the snap-fit ​​part extending into the limiting groove.

[0009] Preferably, in order to ensure that the sliding block can smoothly pass through the space between the blocks to perform the hammering action, a sliding space is left between the blocks, the limiting groove passes through the sliding space, and the sliding space allows the sliding block to pass through.

[0010] Preferably, considering the service life of the structure and the deformation of the hammering part, a contact block is fixed at one end of the stop block, an inner ring groove is opened in the center hole near the stop ring, and anti-slip protrusions are provided at both ends of the sliding hammer component.

[0011] Preferably, in order to facilitate connection with positioning pins of different specifications to meet various pull-out requirements, the pull head structure includes a connecting post fixed to the end of the main body rod. A movable cylinder is connected to the outer wall of the connecting post by means of threads. One end of the movable cylinder is fixed with a perforated plate, and one end of the connecting post is fixed with an abutment plate. A gasket is provided between the connecting post and the perforated plate.

[0012] Preferably, in order to facilitate the application of force, the gasket has a central hole and is fitted with a positioning pin. One end of the positioning pin extends outside the movable cylinder and is connected to a connection hole on an external device, thereby transmitting force to the device.

[0013] The beneficial effects of this utility model are:

[0014] This utility model, by setting up a sliding hammer component and a stop block in a structural combination, avoids the situation in the prior art where an inertial object directly hits an obstruction on one side, effectively solves the problem of easy pinching and injury to people, and greatly improves the safety of the puller when in use.

[0015] The sliding foot block and the locking part on the inner wall of the center hole of the sliding hammer component cooperate with the limiting groove of the main body rod, so that the sliding hammer component can slide stably on the main body rod and avoid rotation, ensuring the stability and accuracy of the hammering action of the sliding hammer component, thereby improving the efficiency of pulling out the positioning shaft or positioning pin.

[0016] The sliding space between the blocks allows the sliding foot block to pass through, ensuring that the sliding foot block can smoothly pass through the space between the blocks to perform the hammering action, ensuring the smooth operation of the overall structure of the puller and reducing the probability of failure.

[0017] The design of the contact block at one end of the stop block, the inner ring groove in the center hole, and the anti-slip protrusions at both ends of the sliding hammer component takes into account the service life of the structure and the deformation of the hammering part. This not only extends the service life of the puller but also enhances the smoothness of operation for personnel.

[0018] The puller head structure adopts a design of connecting column, movable cylinder, perforated plate, abutment plate and gasket, which facilitates connection with positioning pins of different specifications, can adapt to various pull-out needs, improves the versatility and applicability of the puller, and can be used in different mechanical engineering scenarios. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the stop block structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the slide weight component of this utility model.

[0022] Figure 4 This is a schematic diagram of the operating handle structure of this utility model.

[0023] Figure 5 This is a schematic diagram of the slider structure of this utility model.

[0024] Figure 6 This is a schematic diagram of the abutment plate structure of this utility model.

[0025] In the diagram: 1. Main rod; 101. Operating handle; 102. Slope protection section; 103. Limiting groove; 104. Stop block; 105. Contact block; 2. Pull head structure; 201. Connecting column; 202. Movable cylinder; 203. Orifice plate; 204. Abutment plate; 205. Gasket; 3. Sliding hammer component; 301. Retaining ring; 302. Sliding foot block; 303. Snap-fit ​​part; 304. Inner ring groove; 305. Anti-slip protrusion; 4. Positioning pin. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-6As shown, a multifunctional puller includes a main rod 1. One end of the main rod 1 is provided with a pull head structure 2, which is used to connect with an external positioning shaft or positioning pin 4 to facilitate pulling out. The other end of the main rod 1 has a tail thread and an operating handle 101 is installed by screwing. The operating handle 101 is easy for personnel to hold. A slope protection part 102 is fixed to the end of the operating handle 101 near the pull head structure 2. A sliding hammer component 3 is slidably engaged on the outer wall of the main rod 1. A limit groove 103 is opened on the outer wall of the main rod 1. A stop block 104 is fixed on the main rod 1. The sliding hammer component 3 pulls out the positioning pin 4 by hammering the stop block 104. A central hole is opened on the sliding hammer component 3, and a retaining ring 301 that works with the stop block 104 is fixed on the inner wall of the central hole.

[0028] like Figure 2 and 3 As shown, a sliding block 302 is fixed on the inner wall of the central hole. One end of the sliding block 302 is close to the outer wall of the main body rod 1, and a snap-fit ​​part 303 is fixed on the sliding block 302. The snap-fit ​​part 303 extends into the limiting groove 103, which enables the sliding hammer component 3 to slide stably on the main body rod 1 and prevents the sliding hammer component 3 from rotating.

[0029] like Figure 2 As shown, there is a sliding space between the blocks 104, the limiting groove 103 passes through the sliding space, and the sliding space allows the sliding foot block 302 to pass through, which ensures that the sliding foot block 302 can smoothly pass through the space between the blocks 104 to perform the hammering action.

[0030] like Figure 3 As shown, considering the service life of the structure and the deformation of the hammering part, a contact block 105 is fixed at one end of the stop block 104, and an inner ring groove 304 is opened in the center hole near the stop ring 301. Anti-slip protrusions 305 are provided at both ends of the sliding hammer component 3.

[0031] like Figure 5 and Figure 6 As shown, the puller structure 2 includes a connecting post 201 fixed to the end of the main body rod 1. A movable cylinder 202 is connected to the outer wall of the connecting post 201 by means of threads. One end of the movable cylinder 202 is fixed with a perforated plate 203, and one end of the connecting post 201 is fixed with an abutment plate 204. A gasket 205 is provided between the connecting post 201 and the perforated plate 203, which can be easily connected with positioning pins 4 of different specifications to meet various pull-out requirements. The gasket 205 has a central hole and is fitted with a positioning pin 4. One end of the positioning pin 4 extends to the outside of the movable cylinder 202 and is connected to the connecting hole on the external device. The positioning pin 4 is used to transmit force to the device, which facilitates the application of force.

[0032] In use, the positioning pin 4 is first passed through the gasket 205 and connected to the external part that is pulled out. Then, the main body rod 1 and the movable cylinder 202 are connected. The operator holds the operating handle 101 and manually slides the sliding hammer part 3. The sliding foot block 302 and the locking part 303 on the inner wall of the center hole of the sliding hammer part 3 slide in the limiting groove 103 of the main body rod 1 to ensure that the sliding hammer part 3 slides stably and does not rotate.

[0033] When the sliding hammer component 3 slides along the main body rod 1 toward the stop block 104, the sliding foot block 302 passes through the sliding space between the stop blocks 104, and the sliding hammer component 3 hammers the stop block 104. The impact force is transmitted to the external equipment component through the main body rod 1, connecting column 201, gasket 205 and positioning pin 4. After multiple hammer blows, it is pulled out.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-functional pull-out device, characterized in that: The system includes a main rod (1), one end of which is provided with a pull head structure (2), and the other end of which is provided with a tail thread and an operating handle (101) is installed by screw. The operating handle (101) is fixed with a slope protection part (102) near the pull head structure (2). A sliding hammer component (3) is slidably engaged on the outer wall of the main rod (1). A limit groove (103) is opened on the outer wall of the main rod (1). A stop block (104) is fixed on the main rod (1). A central hole is opened on the sliding hammer component (3). A retaining ring (301) for use with the stop block (104) is fixed on the inner wall of the central hole.

2. The multifunctional pull-out device according to claim 1, characterized in that: A sliding block (302) is fixed on the inner wall of the central hole. One end of the sliding block (302) is close to the outer wall of the main body rod (1), and a snap-fit ​​part (303) is fixed on the sliding block (302). The snap-fit ​​part (303) extends into the limiting groove (103).

3. The multifunctional pull-out device according to claim 2, characterized in that: A sliding space is provided between the stops (104), the limiting groove (103) passes through the sliding space, and the sliding space allows the sliding foot block (302) to pass through.

4. The multifunctional pull-out device according to claim 3, characterized in that: One end of the stop block (104) is fixed with a contact block (105), and an inner ring groove (304) is provided in the center hole near the stop ring (301). Both ends of the sliding hammer component (3) are provided with anti-slip protrusions (305).

5. The multifunctional pull-out device according to claim 1, characterized in that: The pull head structure (2) includes a connecting post (201) fixed to the end of the main body rod (1). A movable cylinder (202) is connected to the outer wall of the connecting post (201) by means of threads. A perforated plate (203) is fixed to one end of the movable cylinder (202). An abutment plate (204) is fixed to one end of the connecting post (201). A gasket (205) is provided between the connecting post (201) and the perforated plate (203).

6. The multifunctional pull-out device according to claim 5, characterized in that: The gasket (205) has a central opening and is fitted with a positioning pin (4), one end of which extends out of the movable cylinder (202).

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