A hexagon socket T-shaped butt screw body

Abstract

The present invention discloses a hexagon socket T-shaped butt screw body, comprising a screw body and a screw sleeve matched therewith, wherein an internal thread groove is provided at the center of the small head end of the screw sleeve, and a counter-insertion ring groove provided on the outer periphery of the internal thread groove is provided, and a screw rod part matching the internal thread groove is provided at the small head end of the screw body, and a slot, a limiting slide groove, a mounting slot, and a long hole are sequentially connected and provided in the screw body, and a counter-insertion rod is slidably inserted in the slot, and a rack plate is slidably provided in the limiting slide groove. The present invention can realize the counter-insertion with the counter-insertion ring groove of the end of the screw sleeve in advance and quickly through the effect of the counter-insertion rod that is longer than the screw rod part after being extended, and since the counter-insertion ring groove has a larger circumferential surface area, it is easier to find the counter-insertion, and after the counter-insertion rod and the counter-insertion ring groove are counter-inserted, the screw body can be rotated to play a role in straightening the screw sleeve, ensuring that the axis of the screw sleeve and the screw body are on the same line, which greatly facilitates the screw connection assembly of the latter two.

Description

Technical Field

[0001] The invention relates to the technical field of fasteners for exhibitions, and in particular to a hexagon socket T-shaped butt screw body. Background Art

[0002] With the development of science and technology, exhibitions have made great innovative breakthroughs in both form and content, such as the integrated expression method of integrating sound, light and electricity, and even the emergence of train exhibitions, car exhibitions, ship exhibitions, and aircraft exhibitions, as well as trade exhibitions that simply show videos or put up charts, or even use telex communication.

[0003] The exhibition industry refers to the industrial system formed by exhibition-related service enterprises, institutions and departments. The exhibition economy refers to the economic category composed of exhibitions and related industries. The exhibition industry is an industry that has developed rapidly in China in recent years. The exhibition industry was formally proposed in China between 1998 and 1999. Since foreign experts believe that the exhibition industry has a 1:9 pull effect on related industries, exhibitions can not only bring huge economic benefits, but more importantly, they can also bring huge social benefits.

[0004] The installation of display boards and display frames used in exhibitions cannot be separated from the use of fasteners. The most common one is the hexagonal T-type butt screw body. However, the following problems exist in the actual installation process: when the thickness of the two plates to be fastened is too large, the screw sleeve and the screw body are respectively inserted into the punched holes of the two plates. Due to the deep holes, the initial deviation of the hole alignment, and the excessive setting of the hole diameter, the screw sleeve and the screw body may not be able to dock even after a long period of position adjustment, which will seriously affect the assembly efficiency between the plates. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings existing in the prior art, such as: when the thickness of the two plates to be fastened is too large, the screw sleeve and the screw body are respectively inserted into the punched holes of the two plates. Due to the problems of the hole being too deep, the hole alignment being deviated at the beginning, and the hole diameter being too large, the screw sleeve and the screw body may not be able to dock even after a long period of position adjustment, and thus a hexagonal T-type docking screw body is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A hexagonal T-shaped butt screw body comprises a screw body and a threaded sleeve matching the same, an internal thread groove is provided at the center of the small head end of the threaded sleeve, a counter-insertion ring groove provided on the threaded sleeve is provided on the periphery of the internal thread groove, a screw rod portion matching the internal thread groove is provided at the small head end of the screw body, a slot, a limiting slide groove, an installation slot and a long hole are sequentially connected in the screw body, a counter-insertion rod is slidably inserted in the slot, a rack plate is slidably arranged in the limiting slide groove, the rack plate is fixed to the side wall of the counter-insertion rod, a pin shaft is rotatably inserted in the installation groove, a gear and a bevel gear a are fixedly sleeved on the outside of the pin shaft in sequence, the gear is meshedly connected to the rack plate, and a belt rotation mechanism matching the bevel gear a is installed in the long hole.

[0008] Preferably, the belt rotation mechanism includes a fixing tube fixedly installed in the long hole, a rotating rod is rotatably inserted in the fixing tube, a bevel gear b is fixed to the end of the rotating rod extending into the mounting groove, the bevel gear b is meshingly connected with the bevel gear a, a ferrule is fixedly sleeved on the end of the rotating rod close to the bevel gear b, the outer surface of the ferrule is rotatably connected to the inner side wall of the long hole, a spring is arranged on the outer sleeve of the rotating rod, the head and tail ends of the spring are respectively fixed to the ferrule and the end opposite to the fixing tube, and a locking mechanism matching the rotating rod is arranged on the side of the big head end of the screw body.

[0009] Preferably, the locking mechanism comprises two opposing seats symmetrically mounted on the side surfaces of the end of the screw body, a connecting block is fixed to one end of the rotating rod extending out of the screw body, and the two opposing seats and the connecting block are locked and limited by a latch.

[0010] Preferably, a circular hole a for the insertion of the latch is provided in the middle of the connecting block, and a circular hole b for the insertion of the latch is provided on both of the two opposing seats.

[0011] Preferably, the latch is formed by bending and pressing a thin iron wire.

[0012] Preferably, the depth of the insert ring groove is approximately one quarter of the depth of the internal thread groove.

[0013] Preferably, the spring is a strong torsion spring.

[0014] Preferably, the side surfaces of the large head ends of the screw sleeve and the screw body are both provided with hexagonal grooves.

[0015] The beneficial effects of the present invention are as follows: the screw sleeve and the screw body are respectively passed through the holes of the two plates, the pin is removed, and then the insertion rod which is longer than the screw rod can be extended out to achieve the insertion with the insertion ring groove at the end of the screw sleeve in advance and faster. Since the circumferential surface area of ​​the insertion ring groove is larger, it is easier to find and insert afterwards, and after the insertion rod and the insertion ring groove are inserted, rotating the screw body can play a role in straightening the screw sleeve, ensuring that the axes of the screw sleeve and the screw body are in one line, which greatly facilitates the subsequent screw connection assembly of the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of assembling a hexagon socket T-shaped butt screw body proposed by the present invention;

[0017] Figure 2 It is a cross-sectional view of the threaded sleeve in the present invention;

[0018] Figure 3 It is a partial structural cross-sectional view of the screw body in the present invention;

[0019] Figure 4 It is a three-dimensional diagram of the screw sleeve in the present invention;

[0020] Figure 5 It is a side view of the end of the screw body in the present invention.

[0021] In the figure: 1 screw sleeve, 1a internal thread groove, 1b plug ring groove, 2 screw body, 2a screw rod part, 2b plug rod, 2c slot, 2d limit slide groove, 2e installation groove, 2f long hole, 3 rack plate, 4 gear, 5 bevel gear a, 6 bevel gear b, 7 rotating rod, 8 ring, 9 spring, 10 fixed tube, 11 connecting block, 12 opposite seat, 13 pin. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Reference Figure 1-5 A hexagon socket T-shaped butt screw body, comprising a screw body 2 and a matching screw sleeve 1, an internal thread groove 1a is provided at the center of the small head end of the screw sleeve 1, and a counter-insertion ring groove 1b is provided on the outer periphery of the internal thread groove 1a, and the depth of the counter-insertion ring groove 1b is about one-fourth of the depth of the internal thread groove 1a, and a screw rod portion 2a matching the internal thread groove 1a is provided at the small head end of the screw body 2, and a slot 2c, a limiting slide groove 2d, an installation slot 2e, and a long hole 2f are sequentially connected in the screw body 2, a counter-insertion rod 2b is slidably inserted in the slot 2c, a rack plate 3 is slidably arranged in the limiting slide groove 2d, and the rack plate 3 is fixed to the side wall of the counter-insertion rod 2b, a pin is rotatably inserted in the installation groove 2e, and the pin is sequentially fixed outside the sleeve It is connected to a gear 4 and a bevel gear a5, the gear 4 is meshed with the rack plate 3, and a belt rotation mechanism matching the bevel gear a5 is installed in the long hole 2f; the belt rotation mechanism includes a fixed tube 10 fixedly installed in the long hole 2f, a rotating rod 7 is rotatably inserted in the fixed tube 10, and a bevel gear b6 is fixed at one end of the rotating rod 7 extending into the mounting groove 2e, and the bevel gear b6 is meshed with the bevel gear a5. A ferrule 8 is fixedly sleeved at one end of the rotating rod 7 close to the bevel gear b6, and the outer surface of the ferrule 8 is rotatably connected to the inner side wall of the long hole 2f. A spring 9 is arranged on the outer sleeve of the rotating rod 7, and the spring 9 is a strong torsion spring. The head and tail ends of the spring 9 are respectively fixed to the ferrule 8 and the end opposite to the fixed tube 10, and a locking mechanism matching the rotating rod 7 is arranged on the side of the big head end of the screw body 2.

[0026] The locking mechanism includes two opposing seats 12 symmetrically mounted on the side surfaces of the end portions of the screw body 2. A connecting block 11 is fixed to one end of the rotating rod 7 extending out of the screw body 2. The two opposing seats 12 and the connecting block 11 are locked and limited by a latch 13. A circular hole a for the insertion of the latch 13 is provided in the middle of the connecting block 11, and a circular hole b for the insertion of the latch 13 is provided on both opposing seats 12. The latch 13 is formed by bending and pressing a thin iron wire. When the latch 13 is removed, the connecting block 11 is released. The rotating rod 7 drives the bevel gear b6 to rotate under the rotational force of its external spring 9. The bevel gear b6 engages and drives the bevel gear a5 to rotate. The bevel gear a5 drives the gear 4 to rotate and then drives the rack plate 3 to translate. In this way, the plug-in rod 2b connected to the rack plate 3 is sent out of the screw body 2 to a length longer than the screw portion 2a on the screw body 2.

[0027] The sides of the large heads of the screw sleeve 1 and the screw body 2 are both provided with hexagonal grooves, so that the screw sleeve 1 and the screw body 2 can be tightened conveniently using a hexagonal wrench.

[0028] In the present invention, the screw sleeve 1 and the screw body 2 are respectively passed through the punched holes of the two plates, and the latch 13 is pulled out, so that the connecting block 11 is released, and the rotating rod 7 drives the bevel gear b6 to rotate under the rotation force of the outer spring 9, and the bevel gear b6 is engaged to drive the bevel gear a5 to rotate, and the bevel gear a5 drives the gear 4 to rotate and then drives the rack plate 3 to translate, so that the insertion rod 2b connected to the rack plate 3 is sent out of the screw body 2 to reach a length longer than the screw rod portion 2a on the screw body 2. In this way, when the screw sleeve 1 and the screw body 2 are installed in position, when the two are difficult to be smoothly aligned due to practical factors By extending the insertion rod 2b which is longer than the screw rod 2a, the insertion with the insertion ring groove 1b at the end of the screw sleeve 1 can be achieved in advance and quickly. Since the circumferential surface area of ​​the insertion ring groove 1b is larger, it is easier to find and insert. Moreover, when the screw sleeve 1 and the screw body 2 are slightly tilted, the insertion rod 2b can more easily find the insertion ring groove 1b at the outer edge of the end of the screw sleeve 1. After the insertion rod 2b and the insertion ring groove 1b are inserted, rotating the screw body 2 can play a role in straightening the screw sleeve 1, ensuring that the axes of the screw sleeve 1 and the screw body 2 are in one line, which greatly facilitates the subsequent screw connection assembly of the two.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hexagon socket T-shaped butt screw body, comprising a screw body (2) and a matching screw sleeve (1), characterized in that: The small end of the screw sleeve (1) is provided with an internal thread groove (1a) at the center position, and the outer periphery of the internal thread groove (1a) is provided with a counter-insertion ring groove (1b) provided on the screw sleeve (1), and the small end of the screw body (2) is provided with a screw rod portion (2a) matching the internal thread groove (1a), and the screw body (2) is provided with a slot (2c), a limit slide groove (2d), a mounting slot (2e), and a long hole (2f) in sequence, and the slot (2 c) a pair of rods (2b) are slidably inserted therein, a rack plate (3) is slidably arranged in the limiting sliding groove (2d), the rack plate (3) is fixed to the side wall of the pair of rods (2b), a pin is rotatably inserted in the mounting groove (2e), a gear (4) and a bevel gear a (5) are fixedly sleeved on the outside of the pin in sequence, the gear (4) is meshingly connected to the rack plate (3), and a belt rotation mechanism matching the bevel gear a (5) is installed in the long hole (2f); The belt rotation mechanism comprises a fixed tube (10) fixedly installed in the long hole (2f), a rotating rod (7) is rotatably inserted in the fixed tube (10), a bevel gear b (6) is fixed to one end of the rotating rod (7) extending into the installation groove (2e), and the bevel gear b (6) is meshingly connected with the bevel gear a (5), a ferrule (8) is fixedly sleeved on one end of the rotating rod (7) close to the bevel gear b (6), the outer surface of the ferrule (8) is rotatably connected to the inner wall of the long hole (2f), a spring (9) is provided on the outer sleeve of the rotating rod (7), the head and tail ends of the spring (9) are respectively fixed to the ferrule (8) and the end opposite to the fixed tube (10), and a locking mechanism matching the rotating rod (7) is provided on the side of the large head end of the screw body (2); The locking mechanism comprises two opposing seats (12) symmetrically mounted on the side surfaces of the end of the screw body (2); one end of the rotating rod (7) extending outside the screw body (2) is fixed with a connecting block (11); the two opposing seats (12) and the connecting block (11) are locked and limited by a latch (13); A circular hole a for the insertion of the latch pin (13) is provided in the middle of the connection block (11), and a circular hole b for the insertion of the latch pin (13) is provided on each of the two opposing seats (12).

2. A hexagon socket T-shaped butt screw body according to claim 1, characterized in that: The latch (13) is formed by bending and pressing a thin iron wire.

3. The hexagon socket T-shaped butt screw body according to claim 1, characterized in that: The depth of the insert ring groove (1b) is one quarter of the depth of the internal thread groove (1a).

4. The hexagon socket T-shaped butt screw body according to claim 1, characterized in that: The spring (9) is a strong torsion spring.

5. The hexagon socket T-shaped butt screw body according to claim 1, characterized in that: The side surfaces of the large head ends of the screw sleeve (1) and the screw body (2) are both provided with hexagonal grooves.

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