Mortise and tenon structure connecting clamp for protective fence

Abstract

The invention provides a mortise and tenon joint structure connecting clamp for a protective fence, and relates to the field of protective fence clamps. The mortise and tenon joint structure connecting clamp for the protective fence comprises a first clamp, a second clamp, a third clamp and a fourth clamp, the first clamp comprises a first web and a first top plate, and two first multi-tooth clamping blocks are fixedly connected to the two sides of the upper surface of the first web correspondingly; two first clamping grooves are formed in the two sides of the upper surface of the first top plate correspondingly, and first wedge blocks are fixedly connected to the middles of the inner walls of the sides, close to the center of the first top plate, of the first clamping grooves correspondingly. According to the tenon-and-mortise structure connecting hoop for the protective fence, fence meshes with threaded ribs of different diameters are conveniently clamped and fixed through cooperative use of the first web and the first top plate, the second web and the second top plate, the third web and the third top plate and the fourth web and the fourth top plate, and the distance between the first web and the first top plate and the distance between the second web and the second top plate are adjustable; therefore, the adaptability of the tenon-and-mortise structure connecting clamp for the protective fence is improved.

Description

Technical Field

[0001] The present invention relates to the field of protective fence clamps, specifically a mortise and tenon structure connecting clamp for protective fences. Background Art

[0002] A protective fence clamp is a special fastener used to fix and connect the protective fence structure, mainly used to ensure the stable connection between the fence posts and the fence mesh, so as to enhance the impact resistance and durability of the overall fence structure, extend the service life of the fence, and the protective fence clamp is widely used as an important functional accessory in protective projects such as highways, railways, and construction site enclosures.

[0003] However, most of the existing protective fence clamps on the market can only hold a single vertical rib of the fence mesh during use, which may cause the clamp to rotate, reducing the stability of the clamp fixation. Moreover, the existing protective fence clamps on the market are not convenient for clamping and fixing fence meshes with different diameter threaded ribs, thereby reducing the adaptability of the protective fence clamps. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a mortise and tenon structure connecting clamp for protective fences, which solves the problem that most of the existing protective fence clamps on the market can only hold a single vertical rib of the fence mesh during use, resulting in the rotation of the clamp and reducing the stability of the clamp fixation, and solves the problem that the existing protective fence clamps on the market are not convenient for clamping and fixing fence meshes with different diameter threaded ribs, thereby reducing the adaptability of the protective fence clamps.

[0006] (2) Technical Solutions

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: A mortise and tenon structure connecting clamp for protective fences, including a first clamp, a second clamp, a third clamp, and a fourth clamp. The first clamp includes a first web and a first top plate. On both sides of the upper surface of the first web, two first multi-tooth blocks are respectively fixedly connected. On both sides of the upper surface of the first top plate, two first slots are respectively opened. In the middle of the inner wall of one side of the first slot close to the center of the first top plate, a first wedge block is respectively fixedly connected. In the middle of the outer wall of one side of the first multi-tooth block close to the center of the first top plate, three tooth grooves are respectively opened. The first wedge blocks are in interference fit with the tooth grooves respectively;

[0008] The second clamp includes a second web and a second top plate. On both sides of the upper surface of the second web, two second multi-tooth blocks are respectively and fixedly connected. On both sides of the upper surface of the second top plate, two second card slots are respectively opened. In the middle of one inner wall of each second card slot near the center of the second top plate, a second wedge block is respectively and fixedly connected. In the middle of one outer wall of each second multi-tooth block near the center of the second top plate, three tooth grooves are respectively opened. The second wedge blocks are respectively in interference fit with the tooth grooves;

[0009] The third clamp includes a third web and a third top plate. On both sides of the upper surface of the third web, two third multi-tooth blocks are respectively and fixedly connected. On both sides of the upper surface of the third top plate, two third card slots are respectively opened. In the middle of one inner wall of each third card slot near the center of the third top plate, a third wedge block is respectively and fixedly connected. In the middle of one outer wall of each third multi-tooth block near the center of the third top plate, three tooth grooves are respectively opened. The third wedge blocks are respectively in interference fit with the tooth grooves;

[0010] The fourth clamp includes a fourth web and a fourth top plate. On both sides of the upper surface of the fourth web, two fourth multi-tooth blocks are respectively and fixedly connected. On both sides of the upper surface of the fourth top plate, two fourth card slots are respectively opened. In the middle of one inner wall of each fourth card slot near the center of the fourth top plate, a fourth wedge block is respectively and fixedly connected. In the middle of one outer wall of each fourth multi-tooth block near the center of the fourth top plate, three tooth grooves are respectively opened. The fourth wedge blocks are respectively in interference fit with the tooth grooves;

[0011] Through the above technical solution, by setting the cooperation of the first abdominal rib grooves and the first top rib grooves, the second abdominal rib grooves and the second top rib grooves, the third abdominal rib grooves and the third top rib grooves, and the fourth abdominal rib grooves and the fourth top rib grooves at different angles, it is convenient to make the tenon-and-mortise structure connecting clamp for the protective fence adapt to the fence mesh with ribbed bars in different arrangement directions.

[0012] Preferably, multiple rows of first abdominal rib grooves are opened in the middle of the upper surface of the first web, and multiple rows of first top rib grooves are opened in the middle of the lower surface of the first top plate. The first top rib grooves and the first abdominal rib grooves are mirror images of each other;

[0013] Through the above technical solution, it is convenient to respectively clamp and fix the cross ribs and multiple longitudinal ribs of the fence mesh through the mirror-image corresponding first top rib grooves and first abdominal rib grooves, thereby improving the stability of the fixation of the first web and the first top plate to the fence mesh.

[0014] Preferably, a first column clamp ring is fixedly connected to the middle of the upper surface of the first top plate, and a second column clamp ring is fixedly connected to the middle of the upper surface of the second top plate;

[0015] Through the above technical solution, the fence posts are clamped by the first column hoop, and then the fence posts together with the fence mesh are combined into one body through the first clamp, and the fence posts are clamped by the second column hoop, and then the fence posts together with the fence mesh are combined into one body through the second clamp.

[0016] Preferably, the first multi-tooth blocks are respectively clamped and connected with the first card slots, and the second multi-tooth blocks are respectively clamped and connected with the second card slots;

[0017] Through the above technical solution, by the cooperation of the first multi-tooth block with three tooth grooves and the first card slot provided with the first wedge block, it is convenient for the staff to adjust the distance between the first top plate and the first web plate, thereby adjusting the space size between the first top rib groove and the first web rib groove, so that the first web plate and the first top plate can be clamped and fixed to the fence mesh with different diameters of threaded steel bars. And by the cooperation of the second multi-tooth block with three tooth grooves and the second card slot provided with the second wedge block, it is convenient for the staff to adjust the distance between the second top plate and the second web plate, thereby adjusting the space size between the second top rib groove and the second web rib groove, so that the second web plate and the second top plate can be clamped and fixed to the fence mesh with different diameters of threaded steel bars.

[0018] Preferably, a second web rib groove is provided in the middle of the upper surface of the second web plate, and multiple rows of second top rib grooves are provided in the middle of the lower surface of the second top plate. The second top rib grooves and the second web rib grooves are mirror images of each other;

[0019] Through the above technical solution, it is convenient to respectively clamp and fix the cross ribs and multiple longitudinal ribs of the fence mesh through the mirror-image corresponding second top rib grooves and second web rib grooves, thereby improving the stability of the second web plate and the second top plate in fixing the fence mesh.

[0020] Preferably, multiple rows of third web rib grooves are provided in the middle of the upper surface of the third web plate, and multiple rows of third top rib grooves are provided in the middle of the lower surface of the third top plate. The third top rib grooves and the third web rib grooves are mirror images of each other;

[0021] Through the above technical solution, it is convenient to respectively clamp and fix the cross ribs and multiple longitudinal ribs of the fence mesh through the mirror-image corresponding third top rib grooves and third web rib grooves, thereby improving the stability of the third web plate and the third top plate in fixing the fence mesh.

[0022] Preferably, a third column hoop is fixedly connected to the middle of the upper surface of the third top plate, and a fourth column hoop is fixedly connected to the middle of the upper surface of the fourth top plate;

[0023] Through the above technical solution, the fence posts are clamped by the third column hoop, and then the fence posts together with the fence mesh are combined into one body through the third clamp, and the fence posts are clamped by the fourth column hoop, and then the fence posts together with the fence mesh are combined into one body through the fourth clamp.

[0024] Preferably, each of the third multi-tooth blocks is respectively clamped and connected to the third card slot, and each of the fourth multi-tooth blocks is respectively clamped and connected to the fourth card slot;

[0025] Through the above technical solution, by the cooperation of the third multi-tooth block with three tooth grooves and the third card slot provided with a third wedge block, it is convenient for the staff to adjust the distance between the third top plate and the third web plate, so as to adjust the space size between the third top rib groove and the third web rib groove, so that the third web plate and the third top plate can be clamped and fixed to the fence mesh with different diameter threaded bars. And by the cooperation of the fourth multi-tooth block with three tooth grooves and the fourth card slot provided with a fourth wedge block, it is convenient for the staff to adjust the distance between the fourth top plate and the fourth web plate, so as to adjust the space size between the fourth top rib groove and the fourth web rib groove, so that the fourth web plate and the fourth top plate can be clamped and fixed to the fence mesh with different diameter threaded bars.

[0026] Preferably, multiple rows of fourth web rib grooves are provided in the middle of the upper surface of the fourth web plate, multiple rows of fourth top rib grooves are provided in the middle of the lower surface of the fourth top plate, and the fourth top rib grooves and the fourth web rib grooves are mirror images of each other;

[0027] Through the above technical solution, it is convenient to respectively clamp and fix the cross ribs and multiple longitudinal ribs of the fence mesh through the mirror-image corresponding fourth top rib grooves and fourth web rib grooves, thereby improving the stability of the fixation of the fourth web plate and the fourth top plate to the fence mesh.

[0028] (III) Beneficial effects

[0029] The present invention provides a mortise and tenon structure connecting clamp for a protective fence. It has the following beneficial effects:

[0030] 1. The present invention provides a mortise and tenon structure connecting clamp for a protective fence. By the cooperation of the first web plate and the first top plate, the second web plate and the second top plate, the third web plate and the third top plate, and the fourth web plate and the fourth top plate with adjustable spacing, it is convenient to clamp and fix the fence mesh with different diameter threaded bars, thereby improving the adaptability of the mortise and tenon structure connecting clamp for the protective fence.

[0031] 2. The present invention provides a mortise and tenon structure connecting clamp for a protective fence. By the cooperation of multiple rows of first web rib grooves and multiple rows of first top rib grooves respectively provided on the first web plate and the first top plate, multiple rows of second web rib grooves and multiple rows of second top rib grooves respectively provided on the second web plate and the second top plate, multiple rows of third web rib grooves and multiple rows of third top rib grooves respectively provided on the third web plate and the third top plate, and multiple rows of fourth web rib grooves and multiple rows of fourth top rib grooves respectively provided on the fourth web plate and the fourth top plate, it is convenient to clamp and fix the cross ribs and multiple longitudinal ribs of the fence mesh, thereby improving the stability of the entire fence mesh and the installation efficiency of the staff.

[0032] 3. The present invention provides a mortise and tenon structure connecting clamp for a protective fence. By using the cooperation of a first abdominal rib groove and a first top rib groove, a second abdominal rib groove and a second top rib groove, a third abdominal rib groove and a third top rib groove, and a fourth abdominal rib groove and a fourth top rib groove at different angles, it is convenient for the mortise and tenon structure connecting clamp for the protective fence to adapt to fence meshes with ribbed bars in different arrangement directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic diagram of the main structure of the present invention;

[0034] Figure 2 is an exploded view of the first - perspective first clamp of the present invention;

[0035] Figure 3 is an exploded view of the second - perspective first clamp of the present invention;

[0036] Figure 4 is an exploded view of the first - perspective second clamp of the present invention;

[0037] Figure 5 is an exploded view of the second - perspective second clamp of the present invention;

[0038] Figure 6 is an exploded view of the first - perspective third clamp of the present invention;

[0039] Figure 7 is an exploded view of the second - perspective third clamp of the present invention;

[0040] Figure 8 is an exploded view of the first - perspective fourth clamp of the present invention;

[0041] Figure 9 is an exploded view of the second - perspective fourth clamp of the present invention.

[0042] Among them,

[0043] 1. First clamp; 11. First web; 12. First multi - tooth block; 13. First abdominal rib groove; 14. First top plate; 15. First card slot; 16. First wedge block; 17. First column hoop; 18. First top rib groove;

[0044] 2. Second clamp; 21. Second web; 22. Second multi - tooth block; 23. Second abdominal rib groove; 24. Second top plate; 25. Second card slot; 26. Second wedge block; 27. Second column hoop; 28. Second top rib groove;

[0045] 3. Third clamp; 31. Third web; 32. Third multi - tooth block; 33. Third abdominal rib groove; 34. Third top plate; 35. Third card slot; 36. Third wedge block; 37. Third column hoop; 38. Third top rib groove;

[0046] 4. Fourth hoop; 41. Fourth web; 42. Fourth multi-tooth block; 43. Fourth abdominal rib groove; 44. Fourth top plate; 45. Fourth card slot; 46. Fourth wedge block; 47. Fourth column hoop; 48. Fourth top rib groove. Specific implementation mode

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0048] As Figures 1-9 shown, a specific implementation mode provided by the present invention: The mortise and tenon structure connecting hoop for the protective fence includes a first hoop 1, a second hoop 2, a third hoop 3 and a fourth hoop 4. The first hoop 1 includes a first web 11 and a first top plate 14. On both sides of the upper surface of the first web 11, two first multi-tooth blocks 12 are respectively fixedly connected. On both sides of the upper surface of the first top plate 14, two first card slots 15 are respectively opened. In the middle of one inner wall of the first card slot 15 close to the center of the first top plate 14, a first wedge block 16 is respectively fixedly connected. In the middle of the outer wall of one side of the first multi-tooth block 12 close to the center of the first top plate 14, three tooth grooves are respectively opened. The first wedge blocks 16 are respectively in interference fit with the tooth grooves;

[0049] The second hoop 2 includes a second web 21 and a second top plate 24. On both sides of the upper surface of the second web 21, two second multi-tooth blocks 22 are respectively fixedly connected. On both sides of the upper surface of the second top plate 24, two second card slots 25 are respectively opened. In the middle of one inner wall of the second card slot 25 close to the center of the second top plate 24, a second wedge block 26 is respectively fixedly connected. In the middle of the outer wall of one side of the second multi-tooth block 22 close to the center of the second top plate 24, three tooth grooves are respectively opened. The second wedge blocks 26 are respectively in interference fit with the tooth grooves;

[0050] The third hoop 3 includes a third web 31 and a third top plate 34. On both sides of the upper surface of the third web 31, two third multi-tooth blocks 32 are respectively fixedly connected. On both sides of the upper surface of the third top plate 34, two third card slots 35 are respectively opened. In the middle of one inner wall of the third card slot 35 close to the center of the third top plate 34, a third wedge block 36 is respectively fixedly connected. In the middle of the outer wall of one side of the third multi-tooth block 32 close to the center of the third top plate 34, three tooth grooves are respectively opened. The third wedge blocks 36 are respectively in interference fit with the tooth grooves;

[0051] The fourth clamp 4 includes a fourth web 41 and a fourth top plate 44. On both sides of the upper surface of the fourth web 41, two fourth multi-tooth blocks 42 are respectively and fixedly connected. On both sides of the upper surface of the fourth top plate 44, two fourth card slots 45 are respectively opened. In the middle of the inner wall of one side of each fourth card slot 45 close to the center of the fourth top plate 44, a fourth wedge block 46 is respectively and fixedly connected. In the middle of the outer wall of one side of each fourth multi-tooth block 42 close to the center of the fourth top plate 44, three tooth grooves are respectively opened. The fourth wedge blocks 46 are in interference fit with the tooth grooves respectively;

[0052] As Figures 2-3 shown, the second specific embodiment provided by the present invention: In the middle of the upper surface of the first web 11, multiple rows of first web rib grooves 13 are opened. In the middle of the lower surface of the first top plate 14, multiple rows of first top rib grooves 18 are opened. The first top rib grooves 18 and the first web rib grooves 13 are mirror images of each other. In the middle of the upper surface of the first top plate 14, a first column clamp ring 17 is fixedly connected. The first multi-tooth blocks 12 are respectively and clamped with the first card slots 15, which is convenient for respectively clamping and fixing the cross ribs and multiple longitudinal ribs of the fence mesh through the mirror-image corresponding first top rib grooves 18 and first web rib grooves 13, so as to improve the stability of the first web 11 and the first top plate 14 for fixing the fence mesh. The fence posts are clamped through the first column clamp ring 17, and then the fence posts and the fence mesh are combined into one through the first clamp 1. By the cooperative use of the first multi-tooth block 12 with three tooth grooves and the first card slot 15 provided with the first wedge block 16, it is convenient for the staff to adjust the distance between the first top plate 14 and the first web 11, so as to adjust the space size between the first top rib groove 18 and the first web rib groove 13, so that the first web 11 and the first top plate 14 can clamp and fix the fence mesh with different diameters of threaded ribs;

[0053] As Figures 4-5As shown in the figure, the third specific implementation provided by the present invention: A second web tendon groove 23 is provided in the middle of the upper surface of the second web 21, and multiple rows of second top tendon grooves 28 are provided in the middle of the lower surface of the second top plate 24. The second top tendon grooves 28 and the second web tendon groove 23 are mirror images of each other. A second column hoop 27 is fixedly connected to the middle of the upper surface of the second top plate 24. The second multi-tooth blocks 22 are respectively clamped and connected to the second card slots 25, which is convenient for respectively clamping and fixing the cross ribs and multiple longitudinal ribs of the fence mesh through the mirror-image corresponding second top tendon grooves 28 and second web tendon grooves 23, thereby improving the stability of the second web 21 and the second top plate 24 for fixing the fence mesh. The fence posts are clamped by the second column hoop 27, and then the fence posts and the fence mesh are combined into one body through the second clamp 2. By using the cooperation of the second multi-tooth block 22 with three tooth grooves and the second card slot 25 provided with a second wedge block 26, it is convenient for the staff to adjust the distance between the second top plate 24 and the second web 21, thereby adjusting the space size between the second top tendon groove 28 and the second web tendon groove 23, so that the second web 21 and the second top plate 24 can clamp and fix the fence mesh with different diameters of threaded bars;

[0054] As Figures 6-7 As shown in the figure, the fourth specific implementation provided by the present invention: Multiple rows of third web tendon grooves 33 are provided in the middle of the upper surface of the third web 31, and multiple rows of third top tendon grooves 38 are provided in the middle of the lower surface of the third top plate 34. The third top tendon grooves 38 and the third web tendon grooves 33 are mirror images of each other. A third column hoop 37 is fixedly connected to the middle of the upper surface of the third top plate 34. The third multi-tooth blocks 32 are respectively clamped and connected to the third card slots 35, which is convenient for respectively clamping and fixing the cross ribs and multiple longitudinal ribs of the fence mesh through the mirror-image corresponding third top tendon grooves 38 and third web tendon grooves 33, thereby improving the stability of the third web 31 and the third top plate 34 for fixing the fence mesh. The fence posts are clamped by the third column hoop 37, and then the fence posts and the fence mesh are combined into one body through the third clamp 3. By using the cooperation of the third multi-tooth block 32 with three tooth grooves and the third card slot 35 provided with a third wedge block 36, it is convenient for the staff to adjust the distance between the third top plate 34 and the third web 31, thereby adjusting the space size between the third top tendon groove 38 and the third web tendon groove 33, so that the third web 31 and the third top plate 34 can clamp and fix the fence mesh with different diameters of threaded bars;

[0055] As Figures 8-9As shown in the figure, the fourth specific embodiment provided by the present invention: multiple rows of fourth abdominal bar grooves 43 are provided in the middle of the upper surface of the fourth web 41, and multiple rows of fourth top bar grooves 48 are provided in the middle of the lower surface of the fourth top plate 44. The fourth top bar grooves 48 and the fourth abdominal bar grooves 43 are mirror images of each other. The fourth column hoop 47 is fixedly connected to the middle of the upper surface of the fourth top plate 44. The fourth multi-tooth blocks 42 are respectively clamped and connected to the fourth card slots 45, which is convenient for respectively clamping and fixing the cross bars and multiple longitudinal bars of the fence mesh through the mirror-image corresponding fourth top bar grooves 48 and fourth abdominal bar grooves 43, thereby improving the stability of the fourth web 41 and the fourth top plate 44 for fixing the fence mesh. The fence posts are clamped by the fourth column hoop 47, and then the fence posts and the fence mesh are combined into one body through the fourth clamp 4. By using the cooperation of the third multi-tooth block 32 with three tooth grooves and the third card slot 35 provided with the third wedge block 36, it is convenient for the staff to adjust the distance between the third top plate 34 and the third web 31, thereby adjusting the space size between the third top bar groove 38 and the third abdominal bar groove 33, so that the third web 31 and the third top plate 34 can clamp and fix the fence meshes with different diameters of threaded bars.

[0056] Working principle: When using the mortise and tenon structure connecting clamp for the protective fence, first, select different first clamps 1, second clamps 2, third clamps 3 and fourth clamps 4 according to the diameter and arrangement direction of the threaded bars of the fence mesh. Secondly, the cross bars and multiple longitudinal bars of the fence mesh are respectively clamped and fixed by the first web 11 and the first top plate 14, the second web 21 and the second top plate 24, the third web 31 and the third top plate 34, and the fourth web 41 and the fourth top plate 44. Thirdly, the fence posts are clamped and connected through the first column hoop 17, the second column hoop 27, the third column hoop 37 and the fourth column hoop 47. Finally, the first top plate 14, the first web 11, the fence posts and the fence mesh are combined into one body by using the cooperation of the tooth groove at a suitable position on the first multi-tooth block 12 and the first wedge block 16 arranged inside the first card slot 15. The second top plate 24, the second web 21, the fence posts and the fence mesh are combined into one body by using the cooperation of the tooth groove at a suitable position on the second multi-tooth block 22 and the second wedge block 26 arranged inside the second card slot 25. The third top plate 34, the third web 31, the fence posts and the fence mesh are combined into one body by using the cooperation of the tooth groove at a suitable position on the third multi-tooth block 32 and the third wedge block 36 arranged inside the third card slot 35. The fourth top plate 44, the fourth web 41, the fence posts and the fence mesh are combined into one body by using the cooperation of the tooth groove at a suitable position on the fourth multi-tooth block 42 and the fourth wedge block 46 arranged inside the fourth card slot 45.

[0057] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective fence connecting clamp with a mortise and tenon structure, comprising a No. 1 clamp (1), a No. 2 clamp (2), a No. 3 clamp (3) and a No. 4 clamp (4), characterized in that: The No. 1 clamp (1) comprises a No. 1 web (11) and a No. 1 top plate (14), two No. 1 multi-tooth blocks (12) are fixedly connected to the two sides of the upper surface of the No. 1 web (11), two No. 1 slots (15) are respectively provided on the two sides of the upper surface of the No. 1 top plate (14), a No. 1 wedge block (16) is fixedly connected to the middle of the inner wall of the No. 1 slot (15) near the center of the No. 1 top plate (14), three tooth grooves are respectively provided in the middle of the outer wall of the No. 1 multi-tooth block (12) near the center of the No. 1 top plate (14), and the No. 1 wedge blocks (16) are respectively interference fit with the tooth grooves; The No. 2 clamp (2) comprises a No. 2 web (21) and a No. 2 top plate (24), two No. 2 multi-tooth clamps (22) are fixedly connected to the two sides of the upper surface of the No. 2 web (21), two No. 2 clamping grooves (25) are respectively provided on the two sides of the upper surface of the No. 2 top plate (24), the No. 2 clamping grooves (25) are respectively fixedly connected to the middle of the inner wall of one side near the center of the No. 2 top plate (24), and the No. 2 multi-tooth clamps (22) are respectively provided with three tooth grooves in the middle of the outer wall of one side near the center of the No. 2 top plate (24), and the No. 2 wedges (26) are respectively interference fit with the tooth grooves; The No. 3 clamp (3) comprises a No. 3 web (31) and a No. 3 top plate (34), two No. 3 multi-tooth blocks (32) are fixedly connected to the two sides of the upper surface of the No. 3 web (31), two No. 3 slots (35) are respectively provided on the two sides of the upper surface of the No. 3 top plate (34), the No. 3 slots (35) are respectively fixedly connected to the middle of the inner wall of one side near the center of the No. 3 top plate (34), the No. 3 wedge blocks (36) are respectively provided to the middle of the outer wall of one side near the center of the No. 3 top plate (34), three tooth grooves are respectively provided, and the No. 3 wedge blocks (36) are respectively interference fit with the tooth grooves; The No. 4 clamp (4) comprises a No. 4 web (41) and a No. 4 top plate (44), two No. 4 multi-tooth clamps (42) are fixedly connected to the two sides of the upper surface of the No. 4 web (41), two No. 4 clamping grooves (45) are respectively provided on the two sides of the upper surface of the No. 4 top plate (44), and the No. 4 clamping grooves (45) are respectively fixedly connected to the middle of the inner wall of one side near the center of the No. 4 top plate (44) with a No. 4 wedge block (46), and the No. 4 multi-tooth clamp block (42) is respectively provided with three tooth grooves in the middle of the outer wall of one side near the center of the No. 4 top plate (44), and the No. 4 wedge blocks (46) are respectively interference fit with the tooth grooves.

2. The mortise and tenon structure connecting clamp for the protective fence according to claim 1 is characterized in that: A plurality of rows of No. 1 web rib grooves (13) are provided in the middle of the upper surface of the No. 1 web plate (11), and a plurality of rows of No. 1 top rib grooves (18) are provided in the middle of the lower surface of the No. 1 top plate (14), wherein the No. 1 top rib grooves (18) and the No. 1 web rib grooves (13) are mirror images of each other.

3. The mortise and tenon structure connecting clamp for the protective fence according to claim 1 is characterized in that: A first column hoop (17) is fixedly connected to the middle of the upper surface of the first top plate (14), and a second column hoop (27) is fixedly connected to the middle of the upper surface of the second top plate (24).

4. The mortise and tenon structure connecting clamp for the protective fence according to claim 1, characterized in that: The number one multi-toothed clamping blocks (12) are each clamped and connected to the number one clamping slots (15), and the number two multi-toothed clamping blocks (22) are each clamped and connected to the number two clamping slots (25).

5. The mortise and tenon structure connecting clamp for the protective fence according to claim 1, characterized in that: A No. 2 web rib groove (23) is provided in the middle of the upper surface of the No. 2 web plate (21), and a plurality of rows of No. 2 top rib grooves (28) are provided in the middle of the lower surface of the No. 2 top plate (24), wherein the No. 2 top rib grooves (28) and the No. 2 web rib grooves (23) are mirror images of each other.

6. The mortise and tenon structure connecting clamp for the protective fence according to claim 1, characterized in that: A plurality of rows of third web rib grooves (33) are provided in the middle of the upper surface of the third web plate (31), and a plurality of rows of third top rib grooves (38) are provided in the middle of the lower surface of the third top plate (34), wherein the third top rib grooves (38) and the third web rib grooves (33) are mirror images of each other.

7. The mortise and tenon structure connecting clamp for a protective fence according to claim 1, characterized in that: A third column hoop (37) is fixedly connected to the middle portion of the upper surface of the third top plate (34), and a fourth column hoop (47) is fixedly connected to the middle portion of the upper surface of the fourth top plate (44).

8. The mortise and tenon structure connecting clamp for a protective fence according to claim 1, characterized in that: The number three multi-tooth clamping blocks (32) are respectively clamped and connected with the number three clamping slots (35), and the number four multi-tooth clamping blocks (42) are respectively clamped and connected with the number four clamping slots (45).

9. The mortise and tenon structure connecting clamp for a protective fence according to claim 1, characterized in that: A plurality of rows of fourth web rib grooves (43) are provided in the middle of the upper surface of the fourth web plate (41), and a plurality of rows of fourth top rib grooves (48) are provided in the middle of the lower surface of the fourth top plate (44), wherein the fourth top rib grooves (48) and the fourth web rib grooves (43) are mirror images of each other.

Images