Push type self-locking screw screwing-in device

Abstract

The utility model provides a push type self-locking screw screwing-in device which comprises a handle, a connecting rod is fixedly connected to the side end of the handle, a screwing head is detachably connected to the end, away from the handle, of the connecting rod, a screw is detachably connected to the screwing head, slotted holes are symmetrically formed in the side wall of the screwing head, and clamping blocks are slidably connected into the slotted holes. At the moment, the clamping plates on the clamping blocks are reduced in an equal proportion, the clamping blocks cannot be held by hands, the two clamping plates can be clamped through the tweezers and then squeezed mutually, contraction of the clamping blocks is completed, the clamping grooves and the screwing heads can be round or different equilateral, and the same self-locking mode can be used as long as the clamping grooves and the screwing heads are kept consistent and matched. And meanwhile, when screws of different sizes and models are screwed, the screwing heads matched with the screws can be selected to be fixed to the screw holes through the threaded shafts in a threaded mode for use, and therefore the effect that the screws can be replaced according to needs is achieved.

Description

Technical Field

[0001] The utility model relates to a push-type self-locking screw driver, belonging to the technical field of tightening devices. Background Art

[0002] Screw refers to a screw, which is a tool that uses the physical and mathematical principles of the circular rotation of the inclined surface of an object and the friction force to gradually tighten objects and parts. Screw is a general term for fasteners. In daily oral language, wooden boards are needed in construction, but generally two wooden boards need to be connected together, which requires the use of screws. At present, people hold a screwdriver in one hand and hold the screw with the other hand, and then continue to twist the screwdriver to tighten the screw.

[0003] The specification of Chinese patent CN213616400U discloses a screw-tightening device for a junction box, the screw-tightening device comprises a handle and a motor arranged in the handle, the end of the motor is fixed with a chuck, and the motor also has a screw bolt and a set head, the screw bolt is rotated and connected through a screw bolt sleeve with a set head upward, and then the screw is positioned by a screw sleeve with a set head downward, so that the screw bolt sleeve and the screw sleeve are connected, and the formed center line L makes the screw bolt accurately dock with the top of the screw, which can efficiently install smaller screws or screws with finer holes on the junction box, not only with high installation efficiency but also with strong fastening.

[0004] Currently, people hold a screwdriver in one hand and hold the screw with the other hand, then continuously twist the screwdriver to tighten the screw. Over time, people's hands will easily become sore, affecting subsequent work efficiency.

[0005] For this reason, a push-type self-locking screw-in device is proposed. Utility Model Content

[0006] In view of this, the utility model provides a push-type self-locking screw driver to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0007] The technical solution of the utility model is achieved as follows: a push-type self-locking screw driver comprises a handle, a connecting rod is fixedly connected to the side end of the handle, a screw head is detachably connected to the end of the connecting rod away from the handle, a screw head is detachably connected to the screw head, a side wall of the screw head is symmetrically chiseled with slots, a clamping block is slidably connected in the slot, a compression spring is fixedly connected between the two clamping blocks, a screw groove is chiseled at one end of the screw close to the screw head, and a clamping groove corresponding to the clamping block is symmetrically chiseled on the inner wall of the screw groove, and the clamping block is engaged with the clamping groove.

[0008] Further preferably, a screw hole is drilled at one end of the connecting rod close to the screw head, a threaded shaft is fixedly connected to one end of the screw head close to the screw hole, and the threaded shaft is threadedly connected to the screw hole.

[0009] Further preferably, a slide groove is bored on the screw head above the threaded shaft, a clamping plate is symmetrically slidably connected in the slide groove, and the clamping plate is fixedly connected to the side wall of the clamping block near the compression spring.

[0010] Further preferably, a tweezer is placed on the side of the screw head, and the tweezer is clamped with the splint.

[0011] Further preferably, a connecting rod is provided on the surface of the handle, and the protective cover is made of silicone anti-slip material.

[0012] Further preferably, the screw head and the screw groove are designed in various shapes, and the screw head matches the screw groove.

[0013] Further preferably, the length of the slide groove is equal to the length of the compression spring in a non-compressed state, and the slot hole is communicated with the slide groove.

[0014] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0015] 1. The utility model realizes that when a screw-in tool is used to tighten and install a screw, the screw head can be fixed with the installation, and then the two clamping plates can be held by hand and squeezed against each other to compress the compression spring, thereby driving the two clamping blocks to be retracted into the slot holes. At this time, the screw head can be inserted into the screw slot, and the clamping plates can be released after insertion. The clamping blocks are automatically clamped into the clamping slot by the elastic force of the compression spring, thereby positioning the screw head. At this time, the screw can be tightened by turning the handle with one hand without holding the screw with the hand, thereby effectively achieving the effect of self-locking when the screw-in tool is inserted into the screw.

[0016] Second, the utility model realizes that when the screw to be turned is too small, the upper splint will also be reduced in proportion, and it will be impossible to hold it by hand. At this time, the two splints can be clamped by tweezers and squeezed against each other to complete the contraction of the clamping block, and the shapes of the card slot and the screw head can be circular or different equilateral shapes. As long as the card slot and the screw head are consistent and matched, the same self-locking method can be used. At the same time, when screwing screws of different sizes and models, the matching screw head can be selected for use through the threaded shaft and the screw hole thread fixation, thereby achieving the effect of being replaceable according to needs.

[0017] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application 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 present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the screw driver of the utility model;

[0020] Figure 2 This is a schematic diagram of the screw head and screw installation structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the screw head structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the card block structure of the utility model.

[0023] Figure numerals: 1. handle; 2. protective cover; 3. connecting rod; 4. screw hole; 5. screw head; 6. screw; 7. clamp; 8. threaded shaft; 9. screw groove; 10. clamping groove; 11. tweezers; 12. slot; 13. slide groove; 14. splint; 15. compression spring. DETAILED DESCRIPTION

[0024] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0025] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] like Figure 1-4 As shown, an embodiment of the utility model provides a push-type self-locking screw driver, including a handle 1, a connecting rod 3 is fixedly connected to the side end of the handle 1, a screw head 5 is detachably connected to the end of the connecting rod 3 away from the handle 1, a screw 6 is detachably connected to the screw head 5, a slot 12 is symmetrically opened on the side wall of the screw head 5, a clamping block 7 is slidably connected in the slot 12, a compression spring 15 is fixedly connected between the two clamping blocks 7, a screw groove 9 is opened on the end of the screw 6 close to the screw head 5, a clamping groove 10 corresponding to the clamping block 7 is symmetrically opened on the inner wall of the screw groove 9, and the clamping block 7 is engaged with the clamping groove 10, the length of the slide groove 13 is equal to the length of the compression spring 15 in the non-extrusion state, and the slot 12 is connected to the slide groove 13.

[0028] This solution can be achieved when using a screw-in tool to tighten and install the screw 6, after the screw head 5 is fixed with the installation, the two clamping plates 14 can be held by hand and squeezed against each other, and the compression spring 15 can be compressed to drive the two clamping blocks 7 to be retracted into the slot 12. At this time, the screw head 5 can be inserted into the screw groove 9, and the clamping plate 14 can be released after insertion. The clamping block 7 is automatically clamped into the clamping groove 10 by the elastic force of the compression spring 15, thereby positioning the screw head 5. At this time, the handle 1 can be turned with one hand to tighten the screw 6 without holding the screw 6, thereby effectively achieving the effect of self-locking when the screw-in tool is inserted into the screw 6.

[0029] Example 2

[0030] like Figure 1-3 As shown, a screw hole 4 is chiseled at one end of the connecting rod 3 near the screw head 5, a threaded shaft 8 is fixedly connected to one end of the screw head 5 near the screw hole 4, and the threaded shaft 8 is threadedly connected to the screw hole 4, a slide groove 13 is chiseled on the screw head 5 above the threaded shaft 8, a splint 14 is symmetrically slidably connected in the slide groove 13, and the splint 14 is fixedly connected to the side wall of the block 7 near the compression spring 15, a tweezers 11 is placed on the side of the screw head 5, the tweezers 11 are clamped by the splint 14, a connecting rod 3 is provided on the surface of the handle 1, and the protective cover 2 is made of silicone anti-slip material, the screw head 5 and the screw groove 9 are designed in various shapes, and the screw head 5 matches the screw groove 9.

[0031] The present invention can realize that when the screw 6 to be tightened is too small, the upper clamp 14 will also be reduced in proportion, and it will be impossible to hold it by hand. At this time, the two clamps 14 can be clamped by the tweezers 11 and then squeezed against each other to complete the contraction of the clamping block 7. The shapes of the clamping slot 10 and the screw head 5 can be circular or different equilateral shapes. As long as the clamping slot 10 and the screw head 5 are consistent and matched, the same self-locking method can be used. At the same time, when tightening screws 6 of different sizes and models, the screw head 5 that matches them can be selected and fixed through the threaded shaft 8 and the screw hole 4 for use, thereby achieving the effect of being replaceable according to needs.

[0032] When the utility model is at work: when the screw-in tool is used to tighten and install the screw 6, the screw head 5 can be fixed with the installation, and then the two clamping plates 14 can be held by hand and squeezed against each other, and the compression spring 15 can be compressed to drive the two clamping blocks 7 to be retracted into the slot 12. At this time, the screw head 5 can be inserted into the screw groove 9, and the clamping plate 14 can be released after insertion. The clamping block 7 is automatically clamped into the clamping groove 10 by the elastic force of the compression spring 15, thereby positioning the screw head 5. At this time, the handle 1 can be turned with one hand to tighten the screw 6 without holding the screw 6, thereby effectively achieving the effect of self-locking when the screw-in tool is inserted into the screw 6.

[0033] 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 various 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. A push-type self-locking screw driver, characterized in that: The invention comprises a handle (1), wherein a connecting rod (3) is fixedly connected to a side end of the handle (1), an end of the connecting rod (3) away from the handle (1) is detachably connected to a screw head (5), a screw head (5) is detachably connected to a screw head (6), a side wall of the screw head (5) is symmetrically chiseled with slots (12), a clamping block (7) is slidably connected in the slots (12), a compression spring (15) is fixedly connected between two clamping blocks (7), a screw groove (9) is chiseled at one end of the screw (6) close to the screw head (5), a clamping groove (10) corresponding to the clamping block (7) is symmetrically chiseled on the inner wall of the screw groove (9), and the clamping block (7) is engaged with the clamping groove (10).

2. A push-type self-locking screw driver according to claim 1, characterized in that: A screw hole (4) is bored at one end of the connecting rod (3) close to the screw head (5), a threaded shaft (8) is fixedly connected to one end of the screw head (5) close to the screw hole (4), and the threaded shaft (8) is threadedly connected to the screw hole (4).

3. A push-type self-locking screw driver according to claim 2, characterized in that: A slide groove (13) is formed on the screw head (5) above the threaded shaft (8), a clamping plate (14) is symmetrically slidably connected in the slide groove (13), and the clamping plate (14) is fixedly connected to the side wall of the clamping block (7) near the compression spring (15).

4. The push-type self-locking screw driver according to claim 1, characterized in that: A tweezer (11) is placed on the side of the screwing head (5), and the tweezer (11) is clamped with a clamp plate (14).

5. The push-type self-locking screw driver according to claim 1, characterized in that: The surface of the handle (1) is provided with a connecting rod (3), and the protective cover (2) is made of a silicone anti-slip material.

6. The push-type self-locking screw driver according to claim 1, characterized in that: The screw head (5) and the screw groove (9) are both designed in various shapes, and the screw head (5) matches the screw groove (9).

7. The push-type self-locking screw driver according to claim 3, characterized in that: The length of the slide groove (13) is equal to the length of the compression spring (15) in a non-compressed state, and the slot hole (12) is connected to the slide groove (13).

Images