Stainless steel guardrail convenient to replace

Abstract

The invention relates to the technical field of stainless steel guardrails, and discloses a stainless steel guardrail convenient to replace, the stainless steel guardrail comprises a supporting seat, cross rods and vertical rods, the two cross rods are riveted to one side of the supporting seat, multiple sets of vertical rods are riveted between the two cross rods, each vertical rod comprises a supporting rod, and the two ends of each supporting rod are fixedly connected with vertical rod mortises; a blocking mechanism is arranged on one side of the supporting seat and one side of the transverse rod; by arranging the supporting seat, the cross rod, the vertical rod and the blocking mechanism, the cross rod and the vertical rod are in mortise joint in a mortise and tenon joint mode, then the cross rod and the supporting seat are in mortise joint, and the spliced guardrail is fixed and limited through the blocking mechanism, so that the guardrail is simple and convenient to use, if parts need to be replaced, the guardrail can be replaced only by taking down the blocking mechanism firstly, and the replacement cost is reduced. Auxiliary tools such as a cutting machine or an electric welding machine are not used, operation is easy, and time and labor are saved.

Description

Technical Field

[0001] The invention relates to the technical field of stainless steel guardrails, in particular to a stainless steel guardrail which is convenient to replace. Background Art

[0002] Stainless steel guardrail is a common safety protection facility, usually used to enclose and protect buildings, public places, industrial areas and other places. It is made of stainless steel material and has the characteristics of strong corrosion resistance and weather resistance, and stable structure. The design and installation of stainless steel guardrail can prevent people from falling, restrict entry into dangerous areas, and maintain order and safety.

[0003] But the following problems still exist:

[0004] When installing stainless steel guardrails, welding is often used to weld sections of stainless steel railings together to form a guardrail. This means that when a section of the guardrail is damaged and needs to be replaced, a cutting machine or other cutting tools are needed to complete the task, which is time-consuming and labor-intensive.

[0005] To this end, we propose a stainless steel guardrail that is easy to replace to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to propose a stainless steel guardrail that is easy to replace. It adopts a mortise and tenon structure and is directly spliced. For the part that needs to be replaced, it can be directly disassembled and replaced without cutting or welding, which is simple and convenient.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A stainless steel guardrail that is easy to replace includes a support seat, a cross bar and a vertical bar. Two cross bars are riveted on one side of the support seat, and multiple groups of vertical bars are riveted between the two cross bars. The vertical bar includes a support bar, and both ends of the support bar are fixedly connected with vertical bar mortise, and the vertical bar mortise is mortised with the cross bar. A blocking mechanism is provided on one side of the support seat and the cross bar.

[0009] Preferably, the support seat includes a base, the upper surface of the base is fixedly connected to a mortise and tenon seat, and the side wall of the mortise and tenon seat is provided with a cross bar tenon groove, the inner wall of the cross bar tenon groove is slidably connected to a cross bar tenon, and the cross bar tenon is mortised with the cross bar.

[0010] Preferably, the cross bar includes a supporting cross bar, both ends of which are fixedly connected with cross bar mortises, and the cross bar mortises are mortised with vertical bar mortises, the side walls of the supporting cross bar are provided with vertical bar mortises, and the inner walls of the vertical bar mortises are slidably connected with vertical bar tenons, and the vertical bar tenons are mortised with the vertical bar mortises.

[0011] Preferably, the blocking mechanism 4 includes a base sealing plate and a cross bar sealing plate, the side wall of the base sealing plate is fixedly connected with a support pin, the outer wall of the mortise and tenon seat located on one side of the support pin is provided with a support pin hole, the side wall of the support pin is slidably connected with the inner wall of the support pin hole, and the side wall of the support seat sealing plate is fixedly connected with a mortise and tenon seat strip block, the mortise and tenon seat strip block is slidably connected with the cross bar tenon groove, and the cross bar tenon is located on both sides of the mortise and tenon seat strip block, and the mortise and tenon seat The side wall of the seat strip block is abutted against the side wall of the cross bar tenon, and the side wall of the cross bar sealing plate is fixedly connected with a cross bar pin, a cross bar pin hole is opened on the side wall of the supporting cross bar located on one side of the cross bar pin, and the cross bar pin side wall is slidably connected to the inner wall of the cross bar pin hole, the side wall of the cross bar sealing plate is fixedly connected with a cross bar strip block, and the side wall of the cross bar strip block is slidably connected to the inner wall of the vertical bar tenon groove, the vertical bar tenon is located on one side of the cross bar strip block and abutted against the side wall of the cross bar strip block.

[0012] Preferably, circular pull blocks are fixedly connected to the side walls of the base sealing plate and the crossbar sealing plate.

[0013] Preferably, a fixing hole is provided on the side wall of the supporting cross bar, and one end of the fixing hole penetrates through the outer wall of the supporting cross bar and the cross bar tenon and extends to the interior of the cross bar strip block, a fixing pin is slidably connected to the inner wall of the fixing hole, a mortise and tenon fixing hole is provided on the upper surface of the mortise and tenon seat, and one end of the mortise and tenon fixing hole penetrates through the outer wall of the mortise and tenon seat and extends to the interior of the mortise and tenon seat strip block, and a mortise and tenon fixing rod is fixedly connected to the inner wall of the mortise and tenon fixing hole.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention, by setting a support seat, a cross bar, a vertical bar and a blocking mechanism, adopts a mortise and tenon jointing method to mortise and tenon the cross bar and the vertical bar, then mortise and tenon the cross bar and the support seat, and then fixes and limits the guardrail after the splicing is completed by the blocking mechanism. It is simple and convenient. If parts need to be replaced, it is only necessary to remove the blocking mechanism first, and then the guardrail can be replaced without using auxiliary tools such as a cutting machine or an electric welder. The operation is simple, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a conveniently replaceable stainless steel guardrail proposed by the present invention;

[0017] Figure 2 for Figure 1 Schematic diagram of the split structure;

[0018] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4This is a schematic diagram of a disassembled structure of a support seat in a stainless steel guardrail that is easy to replace, as proposed by the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of a blocking mechanism in a stainless steel guardrail that is easy to replace proposed by the present invention.

[0021] In the figure: 1. Support seat; 101. Base; 102. Mortise and tenon seat; 103. Crossbar tenon; 104. Crossbar tenon; 2. Crossbar; 201. Support crossbar; 202. Crossbar tenon; 203. Vertical bar tenon; 204. Vertical bar tenon; 3. Vertical bar; 301. Support bar; 302. Vertical bar tenon; 4. Blocking mechanism; 401. Base sealing plate; 402. Support latch; 403. Mortise and tenon seat strip block; 404. Support latch hole; 411. Crossbar sealing plate; 412. Crossbar latch; 413. Crossbar strip block; 414. Crossbar latch hole; 5. Round pull block; 6. Fixing hole; 7. Fixing pin; 8. Mortise and tenon seat fixing hole; 9. Mortise and tenon seat fixing rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-5 A stainless steel guardrail that is easy to replace includes a support seat 1, a cross bar 2 and a vertical bar 3. Two cross bars 2 are riveted on one side of the support seat 1, and multiple groups of vertical bars 3 are riveted between the two cross bars 2. The vertical bar 3 includes a support bar 301, and both ends of the support bar 301 are fixedly connected with vertical bar mortises 302, and the vertical bar mortises 302 are mortised with the cross bar 2. A blocking mechanism 4 is provided on one side of the support seat 1 and the cross bar 2.

[0024] It can be seen from the above structure that by setting the support seat 1, the cross bar 2, the vertical bar 3 and the sealing mechanism 4, the cross bar 2 and the vertical bar 3 are mortised by mortise and tenon joints, and then the cross bar 2 and the support seat 1 are mortised, and then the guardrail after splicing is fixed and limited by the sealing mechanism 4. It is simple and convenient. If parts need to be replaced, you only need to remove the sealing mechanism 4 first, and then you can replace the guardrail. There is no need to use auxiliary tools such as cutting machines or electric welders. The operation is simple, saving time and effort.

[0025] Furthermore, the support seat 1 includes a base 101, the upper surface of the base 101 is fixedly connected with a mortise and tenon seat 102, and the side wall of the mortise and tenon seat 102 is provided with a cross bar tenon groove 103, the inner wall of the cross bar tenon groove 103 is slidably connected with a cross bar tenon 104, and the cross bar tenon 104 is mortised with the cross bar 2; by setting the cross bar tenon 104, when splicing the guardrail, the cross bar tenon 104 is slid into the cross bar tenon groove 103, and then the cross bar tenon 104 is mortised with the cross bar mortise 202, which is simple to operate.

[0026] Furthermore, the cross bar 2 includes a supporting cross bar 201, both ends of the supporting cross bar 201 are fixedly connected with cross bar mortises 202, and the cross bar tenons 104 are mortised with the cross bar mortises 202, the side wall of the supporting cross bar 201 is provided with a vertical bar tenon groove 203, and the inner wall of the vertical bar tenon groove 203 is slidably connected with a vertical bar tenon 204, and the vertical bar tenon 204 is mortised with the vertical bar mortise 302; by setting the vertical bar tenon 204, the vertical bar 3 is first slid into the vertical bar tenon groove 203, and then the vertical bar 3 is The rod tenon 204 slides into the vertical rod tenon groove 203, and then the vertical rod tenon 204 is mortised with the vertical rod mortise 302, and finally the cross bar mortise 202 is mortised with the cross bar tenon 104 to complete the splicing of the guardrail. The operation is simple, and for the replacement of the guardrail, it is only necessary to dismantle the required better vertical rod 3, cross bar 2 or support seat 1, and then install the new vertical rod 3, cross bar 2 or support seat 1 in the original position. No complicated operation is required, and the replacement method is more concise.

[0027] Furthermore, the blocking mechanism 4 includes a base sealing plate 401 and a cross bar sealing plate 411, the side wall of the base sealing plate 401 is fixedly connected with a support pin 402, the outer wall of the mortise and tenon seat 102 located on one side of the support pin 402 is provided with a support pin hole 404, the side wall of the support pin 402 is slidably connected to the inner wall of the support pin hole 404, and the side wall of the base sealing plate 401 is fixedly connected with a mortise and tenon seat strip block 403, the mortise and tenon seat strip block 403 is slidably connected to the cross bar tenon groove 103, and the cross bar tenon The head 104 is located on both sides of the mortise and tenon seat strip block 403, the side walls of the mortise and tenon seat strip block 403 are against the side walls of the cross bar tenon 104, and the side walls of the cross bar sealing plate 411 are fixedly connected with a cross bar latch 412, and a cross bar latch hole 414 is opened on the side wall of the mortise and tenon seat 102 on one side of the cross bar latch 412, and the side wall of the cross bar latch 412 is slidably connected with the inner wall of the cross bar latch hole 414, and the side wall of the cross bar sealing plate 411 is fixedly connected with a cross bar strip block 413, and the side wall of the cross bar strip block 413 is in contact with the vertical The inner wall of the rod tenon groove 203 is slidably connected, and the vertical rod tenon 204 is located on one side of the cross bar strip block 413 and abuts against the side wall of the cross bar strip block 413; by setting the base sealing plate 401 and the cross bar sealing plate 411, after completing the splicing of the support seat 1, the cross bar 2 and the vertical bar 3, the mortise and tenon seat strip block 403 fixedly connected to the side wall of the base sealing plate 401 is slid into the cross bar tenon groove 103, and the mortise and tenon cross bar tenon 104 and the cross bar tenon 202 can be fixed, and then the cross bar strip block 413 is slid into the vertical bar The vertical bar tenon 204 and the vertical bar tenon 302 are fixed in the mortise and tenon groove 203, and then the assembled support base 1, cross bar 2 and vertical bar 3 are fixed to prevent the guardrail from falling apart, and the base sealing plate 401 and the cross bar sealing plate 411 will abut against the side walls of the supporting cross bar 201 and the mortise and tenon seat 102, thereby sealing the cross bar tenon groove 103 and the vertical bar tenon groove 203, making the appearance of the guardrail more beautiful, and preventing debris from entering the cross bar tenon groove 103 and the vertical bar tenon groove 203, thereby affecting the replacement of the guardrail.

[0028] Furthermore, the side walls of the base sealing plate 401 and the cross bar sealing plate 411 are fixedly connected with a circular pull block 5; by providing the circular pull block 5, when replacing the guardrail, the surface of the circular pull block 5 can be grasped and pulled, thereby driving the base sealing plate 401 and the cross bar sealing plate 411 to disengage from the mortise and tenon seat 102 and the supporting cross bar 201, thereby facilitating the replacement of the guardrail.

[0029] Further, a fixing hole 6 is provided on the side wall of the supporting cross bar 201, and one end of the fixing hole 6 penetrates the outer wall of the supporting cross bar 201 and the cross bar tenon 104 and extends to the interior of the cross bar strip block 413, and a fixing pin 7 is slidably connected to the inner wall of the fixing hole 6, and a fixing pin 7 and a mortise and tenon fixing hole 8 are provided on the upper surface of the mortise and tenon seat 102, and one end of the mortise and tenon fixing hole 8 penetrates the outer wall of the mortise and tenon seat 102 and extends to the interior of the mortise and tenon seat strip block 403, and the inner wall of the mortise and tenon fixing hole 8 is fixedly connected to the mortise and tenon seat fixing hole 8. Fixed rod 9; by setting the fixing pin 7 and the mortise and tenon fixing rod 9, when the fixing pin 7 and the mortise and tenon fixing rod 9 are inserted into the fixing hole 6 and the mortise and tenon fixing hole 8, the cross bar strip block 413 and the mortise and tenon strip block 403 can be fixed, and then the mortise and tenon guardrail can be fixed so that the guardrail will not fall apart, and the structure is simple and easy to install and disassemble. When the guardrail needs to be replaced, the fixing pin 7 and the mortise and tenon fixing rod 9 are pulled out, and then the blocking mechanism 4 can be removed, and then the guardrail can be replaced without using other auxiliary tools, saving time and effort.

[0030] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stainless steel guardrail that is easy to replace. It is characterized in that The invention comprises a support seat (1), a cross bar (2) and a vertical bar (3); two cross bars (2) are riveted on one side of the support seat (1), and a plurality of groups of vertical bars (3) are riveted between the two cross bars (2); the vertical bars (3) comprise support bars (301), and both ends of the support bars (301) are fixedly connected with vertical bar mortises (302), and the vertical bar mortises (302) are mortised with the cross bars (2); and a blocking mechanism (4) is provided on one side of the support seat (1) and the cross bars (2).

2. A stainless steel guardrail that is easily replaceable according to claim 1, It is characterized in that The support seat (1) comprises a base (101), the upper surface of the base (101) is fixedly connected to a mortise and tenon seat (102), and the side wall of the mortise and tenon seat (102) is provided with a cross bar tenon groove (103), the inner wall of the cross bar tenon groove (103) is slidably connected to a cross bar tenon (104), and the cross bar tenon (104) is mortise and tenoned with the cross bar (2).

3. A stainless steel guardrail that is easily replaceable according to claim 1 or 2, It is characterized in that The cross bar (2) comprises a supporting cross bar (201), both ends of the supporting cross bar (201) are fixedly connected with cross bar mortises (202), and the cross bar tenons (104) are mortised with the cross bar mortises (202), a side wall of the supporting cross bar (201) is provided with a vertical bar tenon groove (203), and the inner wall of the vertical bar tenon groove (203) is slidably connected with a vertical bar tenon (204), and the vertical bar tenon (204) is mortised with the vertical bar mortise (302).

4. A stainless steel guardrail that is easily replaceable according to claim 1 or 2, It is characterized in that The blocking mechanism (4) comprises a base sealing plate (401) and a cross bar sealing plate (411), the side wall of the base sealing plate (401) is fixedly connected with a support pin (402), the outer wall of the mortise and tenon seat (102) located on one side of the support pin (402) is provided with a support pin hole (404), the side wall of the support pin (402) is slidably connected with the inner wall of the support pin hole (404), and the side wall of the base sealing plate (401) is fixedly connected with a mortise and tenon seat strip block (403), the mortise and tenon seat strip block (403) is slidably connected with the cross bar tenon groove (103), and the cross bar tenon (104) is located on both sides of the mortise and tenon seat strip block (403), and the mortise and tenon seat strip block (403) is slidably connected with the cross bar tenon groove (103). The side wall of the block (403) is abutted against the side wall of the cross bar tenon (104), and the side wall of the cross bar sealing plate (411) is fixedly connected with a cross bar latch (412), and a cross bar latch hole (414) is provided on the side wall of the mortise and tenon seat (102) located on one side of the cross bar latch (412), and the side wall of the cross bar latch (412) is slidably connected to the inner wall of the cross bar latch hole (414), and the side wall of the cross bar sealing plate (411) is fixedly connected with a cross bar strip block (413), and the side wall of the cross bar strip block (413) is slidably connected to the inner wall of the vertical bar tenon groove (203), and the vertical bar tenon (204) is located on one side of the cross bar strip block (413) and abutted against the side wall of the cross bar strip block (413).

5. A stainless steel guardrail that is easily replaceable according to claim 3, It is characterized in that The blocking mechanism (4) comprises a base sealing plate (401) and a cross bar sealing plate (411), the side wall of the base sealing plate (401) is fixedly connected with a support pin (402), the outer wall of the mortise and tenon seat (102) located on one side of the support pin (402) is provided with a support pin hole (404), the side wall of the support pin (402) is slidably connected with the inner wall of the support pin hole (404), and the side wall of the base sealing plate (401) is fixedly connected with a mortise and tenon seat strip block (403), the mortise and tenon seat strip block (403) is slidably connected with the cross bar tenon groove (103), and the cross bar tenon (104) is located on both sides of the mortise and tenon seat strip block (403), and the mortise and tenon seat strip block (403) is slidably connected with the cross bar tenon groove (103). The side wall of the block (403) is abutted against the side wall of the cross bar tenon (104), and the side wall of the cross bar sealing plate (411) is fixedly connected with a cross bar latch (412), and a cross bar latch hole (414) is provided on the side wall of the mortise and tenon seat (102) located on one side of the cross bar latch (412), and the side wall of the cross bar latch (412) is slidably connected to the inner wall of the cross bar latch hole (414), and the side wall of the cross bar sealing plate (411) is fixedly connected with a cross bar strip block (413), and the side wall of the cross bar strip block (413) is slidably connected to the inner wall of the vertical bar tenon groove (203), and the vertical bar tenon (204) is located on one side of the cross bar strip block (413) and abutted against the side wall of the cross bar strip block (413).

6. A conveniently replaceable stainless steel guardrail according to claim 4, It is characterized in that The blocking mechanism (4) comprises a base sealing plate (401) and a cross bar sealing plate (411), the side wall of the base sealing plate (401) is fixedly connected with a support pin (402), the outer wall of the mortise and tenon seat (102) located on one side of the support pin (402) is provided with a support pin hole (404), the side wall of the support pin (402) is slidably connected with the inner wall of the support pin hole (404), and the side wall of the base sealing plate (401) is fixedly connected with a mortise and tenon seat strip block (403), the mortise and tenon seat strip block (403) is slidably connected with the cross bar tenon groove (103), and the cross bar tenon (104) is located on both sides of the mortise and tenon seat strip block (403), and the mortise and tenon seat strip block (403) is slidably connected with the cross bar tenon groove (103). The side wall of the block (403) is abutted against the side wall of the cross bar tenon (104), and the side wall of the cross bar sealing plate (411) is fixedly connected with a cross bar latch (412), and a cross bar latch hole (414) is provided on the side wall of the mortise and tenon seat (102) located on one side of the cross bar latch (412), and the side wall of the cross bar latch (412) is slidably connected to the inner wall of the cross bar latch hole (414), and the side wall of the cross bar sealing plate (411) is fixedly connected with a cross bar strip block (413), and the side wall of the cross bar strip block (413) is slidably connected to the inner wall of the vertical bar tenon groove (203), and the vertical bar tenon (204) is located on one side of the cross bar strip block (413) and abutted against the side wall of the cross bar strip block (413).

7. A conveniently replaceable stainless steel guardrail according to claim 5 or 6, It is characterized in that The side walls of the base sealing plate (401) and the crossbar sealing plate (411) are fixedly connected with circular pull blocks (5).

8. The stainless steel guardrail that is easy to replace according to claim 4, It is characterized in that The side walls of the base sealing plate (401) and the crossbar sealing plate (411) are fixedly connected with circular pull blocks (5).

9. A conveniently replaceable stainless steel guardrail according to claims 2, 5 and 6, It is characterized in that The side wall of the supporting cross bar (201) is provided with a fixing hole (6), and one end of the fixing hole (6) penetrates through the outer wall of the supporting cross bar (201) and the cross bar tenon (104) and extends to the interior of the cross bar strip block (413), the inner wall of the fixing hole (6) is slidably connected with a fixing pin (7), the upper surface of the mortise and tenon (102) is provided with a mortise and tenon fixing hole (8), and one end of the mortise and tenon fixing hole (8) penetrates through the outer wall of the mortise and tenon (102) and extends to the interior of the mortise and tenon strip block (403), and the inner wall of the mortise and tenon fixing hole (8) is fixedly connected with a mortise and tenon fixing rod (9).

10. The conveniently replaceable stainless steel guardrail according to claim 3, It is characterized in that The side wall of the supporting cross bar (201) is provided with a fixing hole (6), and one end of the fixing hole (6) penetrates through the outer wall of the supporting cross bar (201) and the cross bar tenon (104) and extends to the interior of the cross bar strip block (413), the inner wall of the fixing hole (6) is slidably connected with a fixing pin (7), the upper surface of the mortise and tenon (102) is provided with a mortise and tenon fixing hole (8), and one end of the mortise and tenon fixing hole (8) penetrates through the outer wall of the mortise and tenon (102) and extends to the interior of the mortise and tenon strip block (403), and the inner wall of the mortise and tenon fixing hole (8) is fixedly connected with a mortise and tenon fixing rod (9).

11. The conveniently replaceable stainless steel guardrail according to claim 4, It is characterized in that The side wall of the supporting cross bar (201) is provided with a fixing hole (6), and one end of the fixing hole (6) penetrates through the outer wall of the supporting cross bar (201) and the cross bar tenon (104) and extends to the interior of the cross bar strip block (413), the inner wall of the fixing hole (6) is slidably connected with a fixing pin (7), the upper surface of the mortise and tenon (102) is provided with a mortise and tenon fixing hole (8), and one end of the mortise and tenon fixing hole (8) penetrates through the outer wall of the mortise and tenon (102) and extends to the interior of the mortise and tenon strip block (403), and the inner wall of the mortise and tenon fixing hole (8) is fixedly connected with a mortise and tenon fixing rod (9).

12. The conveniently replaceable stainless steel guardrail according to claim 9, It is characterized in that The side wall of the supporting cross bar (201) is provided with a fixing hole (6), and one end of the fixing hole (6) penetrates through the outer wall of the supporting cross bar (201) and the cross bar tenon (104) and extends to the interior of the cross bar strip block (413), the inner wall of the fixing hole (6) is slidably connected with a fixing pin (7), the upper surface of the mortise and tenon (102) is provided with a mortise and tenon fixing hole (8), and one end of the mortise and tenon fixing hole (8) penetrates through the outer wall of the mortise and tenon (102) and extends to the interior of the mortise and tenon strip block (403), and the inner wall of the mortise and tenon fixing hole (8) is fixedly connected with a mortise and tenon fixing rod (9).

Images